Merge branch 'master' of https://github.com/hathach/tinyusb into pyboard

34 files changed, 3155 insertions, 2000 deletions

diff --git a/hw/bsp/ea4088qs/board.mk b/hw/bsp/ea4088qs/board.mk
index d56c98747..510e2912b 100644
--- a/hw/bsp/ea4088qs/board.mk
+++ b/hw/bsp/ea4088qs/board.mk
@@ -11,6 +11,8 @@ CFLAGS += \
 # lpc_types.h cause following errors
 CFLAGS += -Wno-error=strict-prototypes
 
+MCU_DIR = hw/mcu/nxp/lpc_driver/lpc40xx/lpc_chip_40xx
+
 # All source paths should be relative to the top level.
 LD_FILE = hw/bsp/ea4088qs/lpc4088.ld
 
@@ -18,16 +20,17 @@ LD_FILE = hw/bsp/ea4088qs/lpc4088.ld
 SRC_C += src/portable/$(VENDOR)/$(CHIP_FAMILY)/hal_$(CHIP_FAMILY).c
 
 SRC_C += \
-	hw/mcu/nxp/lpc_driver/lpc_chip_40xx/src/chip_17xx_40xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_40xx/src/clock_17xx_40xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_40xx/src/gpio_17xx_40xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_40xx/src/iocon_17xx_40xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_40xx/src/sysctl_17xx_40xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_40xx/src/sysinit_17xx_40xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_40xx/src/uart_17xx_40xx.c
+	$(MCU_DIR)/../gcc/cr_startup_lpc40xx.c \
+	$(MCU_DIR)/src/chip_17xx_40xx.c \
+	$(MCU_DIR)/src/clock_17xx_40xx.c \
+	$(MCU_DIR)/src/gpio_17xx_40xx.c \
+	$(MCU_DIR)/src/iocon_17xx_40xx.c \
+	$(MCU_DIR)/src/sysctl_17xx_40xx.c \
+	$(MCU_DIR)/src/sysinit_17xx_40xx.c \
+	$(MCU_DIR)/src/uart_17xx_40xx.c
 
 INC += \
-	$(TOP)/hw/mcu/nxp/lpc_driver/lpc_chip_40xx/inc
+	$(TOP)/$(MCU_DIR)/inc
 
 # For TinyUSB port source
 VENDOR = nxp
diff --git a/hw/bsp/ea4088qs/cr_startup_lpc40xx.c b/hw/bsp/ea4088qs/cr_startup_lpc40xx.c
deleted file mode 100644
index 6bd3d99a9..000000000
--- a/hw/bsp/ea4088qs/cr_startup_lpc40xx.c
+++ /dev/null
@@ -1,418 +0,0 @@
-//*****************************************************************************
-// LPC407x_8x Microcontroller Startup code for use with LPCXpresso IDE
-//
-// Version : 140114
-//*****************************************************************************
-//
-// Copyright(C) NXP Semiconductors, 2014
-// All rights reserved.
-//
-// Software that is described herein is for illustrative purposes only
-// which provides customers with programming information regarding the
-// LPC products.  This software is supplied "AS IS" without any warranties of
-// any kind, and NXP Semiconductors and its licensor disclaim any and
-// all warranties, express or implied, including all implied warranties of
-// merchantability, fitness for a particular purpose and non-infringement of
-// intellectual property rights.  NXP Semiconductors assumes no responsibility
-// or liability for the use of the software, conveys no license or rights under any
-// patent, copyright, mask work right, or any other intellectual property rights in
-// or to any products. NXP Semiconductors reserves the right to make changes
-// in the software without notification. NXP Semiconductors also makes no
-// representation or warranty that such application will be suitable for the
-// specified use without further testing or modification.
-//
-// Permission to use, copy, modify, and distribute this software and its
-// documentation is hereby granted, under NXP Semiconductors' and its
-// licensor's relevant copyrights in the software, without fee, provided that it
-// is used in conjunction with NXP Semiconductors microcontrollers.  This
-// copyright, permission, and disclaimer notice must appear in all copies of
-// this code.
-//*****************************************************************************
-#if defined (__cplusplus)
-#ifdef __REDLIB__
-#error Redlib does not support C++
-#else
-//*****************************************************************************
-//
-// The entry point for the C++ library startup
-//
-//*****************************************************************************
-extern "C" {
-    extern void __libc_init_array(void);
-}
-#endif
-#endif
-
-#define WEAK __attribute__ ((weak))
-#define ALIAS(f) __attribute__ ((weak, alias (#f)))
-
-//*****************************************************************************
-#if defined (__cplusplus)
-extern "C" {
-#endif
-
-//*****************************************************************************
-#if defined (__USE_CMSIS) || defined (__USE_LPCOPEN)
-// Declaration of external SystemInit function
-extern void SystemInit(void);
-#endif
-
-//*****************************************************************************
-//
-// Forward declaration of the default handlers. These are aliased.
-// When the application defines a handler (with the same name), this will 
-// automatically take precedence over these weak definitions
-//
-//*****************************************************************************
-     void ResetISR(void);
-WEAK void NMI_Handler(void);
-WEAK void HardFault_Handler(void);
-WEAK void MemManage_Handler(void);
-WEAK void BusFault_Handler(void);
-WEAK void UsageFault_Handler(void);
-WEAK void SVC_Handler(void);
-WEAK void DebugMon_Handler(void);
-WEAK void PendSV_Handler(void);
-WEAK void SysTick_Handler(void);
-WEAK void IntDefaultHandler(void);
-
-//*****************************************************************************
-//
-// Forward declaration of the specific IRQ handlers. These are aliased
-// to the IntDefaultHandler, which is a 'forever' loop. When the application
-// defines a handler (with the same name), this will automatically take 
-// precedence over these weak definitions
-//
-//*****************************************************************************
-void WDT_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER2_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER3_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART2_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART3_IRQHandler(void) ALIAS(IntDefaultHandler);
-void PWM1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2C0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2C1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2C2_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SPI_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SSP0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SSP1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void PLL0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void RTC_IRQHandler(void) ALIAS(IntDefaultHandler);
-void EINT0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void EINT1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void EINT2_IRQHandler(void) ALIAS(IntDefaultHandler);
-void EINT3_IRQHandler(void) ALIAS(IntDefaultHandler);
-void ADC_IRQHandler(void) ALIAS(IntDefaultHandler);
-void BOD_IRQHandler(void) ALIAS(IntDefaultHandler);
-void USB_IRQHandler(void) ALIAS(IntDefaultHandler);
-void CAN_IRQHandler(void) ALIAS(IntDefaultHandler);
-void DMA_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2S_IRQHandler(void) ALIAS(IntDefaultHandler);
-#if defined (__USE_LPCOPEN)
-void ETH_IRQHandler(void) ALIAS(IntDefaultHandler);
-#else
-void ENET_IRQHandler(void) ALIAS(IntDefaultHandler);
-#endif
-void RIT_IRQHandler(void) ALIAS(IntDefaultHandler);
-void MCPWM_IRQHandler(void) ALIAS(IntDefaultHandler);
-void QEI_IRQHandler(void) ALIAS(IntDefaultHandler);
-void PLL1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void USBActivity_IRQHandler(void) ALIAS(IntDefaultHandler);
-void CANActivity_IRQHandler(void) ALIAS(IntDefaultHandler);
-#if defined (__USE_LPCOPEN)
-void SDIO_IRQHandler(void) ALIAS(IntDefaultHandler);
-#else
-void MCI_IRQHandler(void) ALIAS(IntDefaultHandler);
-#endif
-void UART4_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SSP2_IRQHandler(void) ALIAS(IntDefaultHandler);
-void LCD_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO_IRQHandler(void) ALIAS(IntDefaultHandler);
-void PWM0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void EEPROM_IRQHandler(void) ALIAS(IntDefaultHandler);
-
-//*****************************************************************************
-//
-// The entry point for the application.
-// __main() is the entry point for Redlib based applications
-// main() is the entry point for Newlib based applications
-//
-//*****************************************************************************
-#if defined (__REDLIB__)
-extern void __main(void);
-#endif
-extern int main(void);
-//*****************************************************************************
-//
-// External declaration for the pointer to the stack top from the Linker Script
-//
-//*****************************************************************************
-extern void _vStackTop(void);
-
-//*****************************************************************************
-#if defined (__cplusplus)
-} // extern "C"
-#endif
-//*****************************************************************************
-//
-// The vector table.
-// This relies on the linker script to place at correct location in memory.
-//
-//*****************************************************************************
-extern void (* const g_pfnVectors[])(void);
-__attribute__ ((section(".isr_vector")))
-void (* const g_pfnVectors[])(void) = {
-    // Core Level - CM4
-    &_vStackTop,                        // The initial stack pointer
-    ResetISR,                           // The reset handler
-    NMI_Handler,                        // The NMI handler
-    HardFault_Handler,                  // The hard fault handler
-    MemManage_Handler,                  // The MPU fault handler
-    BusFault_Handler,                   // The bus fault handler
-    UsageFault_Handler,                 // The usage fault handler
-    0,                                  // Reserved
-    0,                                  // Reserved
-    0,                                  // Reserved
-    0,                                  // Reserved
-    SVC_Handler,                        // SVCall handler
-    DebugMon_Handler,                   // Debug monitor handler
-    0,                                  // Reserved
-    PendSV_Handler,                     // The PendSV handler
-    SysTick_Handler,                    // The SysTick handler
-
-    // Chip Level - LPC40xx
-    WDT_IRQHandler,                     // 16, 0x40 - WDT
-    TIMER0_IRQHandler,                  // 17, 0x44 - TIMER0
-    TIMER1_IRQHandler,                  // 18, 0x48 - TIMER1
-    TIMER2_IRQHandler,                  // 19, 0x4c - TIMER2
-    TIMER3_IRQHandler,                  // 20, 0x50 - TIMER3
-    UART0_IRQHandler,                   // 21, 0x54 - UART0
-    UART1_IRQHandler,                   // 22, 0x58 - UART1
-    UART2_IRQHandler,                   // 23, 0x5c - UART2
-    UART3_IRQHandler,                   // 24, 0x60 - UART3
-    PWM1_IRQHandler,                    // 25, 0x64 - PWM1
-    I2C0_IRQHandler,                    // 26, 0x68 - I2C0
-    I2C1_IRQHandler,                    // 27, 0x6c - I2C1
-    I2C2_IRQHandler,                    // 28, 0x70 - I2C2
-    IntDefaultHandler,                  // 29, Not used
-    SSP0_IRQHandler,                    // 30, 0x78 - SSP0
-    SSP1_IRQHandler,                    // 31, 0x7c - SSP1
-    PLL0_IRQHandler,                    // 32, 0x80 - PLL0 (Main PLL)
-    RTC_IRQHandler,                     // 33, 0x84 - RTC
-    EINT0_IRQHandler,                   // 34, 0x88 - EINT0
-    EINT1_IRQHandler,                   // 35, 0x8c - EINT1
-    EINT2_IRQHandler,                   // 36, 0x90 - EINT2
-    EINT3_IRQHandler,                   // 37, 0x94 - EINT3
-    ADC_IRQHandler,                     // 38, 0x98 - ADC
-    BOD_IRQHandler,                     // 39, 0x9c - BOD
-    USB_IRQHandler,                     // 40, 0xA0 - USB
-    CAN_IRQHandler,                     // 41, 0xa4 - CAN
-    DMA_IRQHandler,                     // 42, 0xa8 - GP DMA
-    I2S_IRQHandler,                     // 43, 0xac - I2S
-#if defined (__USE_LPCOPEN)
-    ETH_IRQHandler,                     // 44, 0xb0 - Ethernet
-    SDIO_IRQHandler,                    // 45, 0xb4 - SD/MMC card I/F
-#else
-    ENET_IRQHandler,                    // 44, 0xb0 - Ethernet
-    MCI_IRQHandler,                     // 45, 0xb4 - SD/MMC card I/F
-#endif                               
-    MCPWM_IRQHandler,                   // 46, 0xb8 - Motor Control PWM
-    QEI_IRQHandler,                     // 47, 0xbc - Quadrature Encoder
-    PLL1_IRQHandler,                    // 48, 0xc0 - PLL1 (USB PLL)
-    USBActivity_IRQHandler,             // 49, 0xc4 - USB Activity interrupt to wakeup
-    CANActivity_IRQHandler,             // 50, 0xc8 - CAN Activity interrupt to wakeup
-    UART4_IRQHandler,                   // 51, 0xcc - UART4
-    SSP2_IRQHandler,                    // 52, 0xd0 - SSP2
-    LCD_IRQHandler,                     // 53, 0xd4 - LCD
-    GPIO_IRQHandler,                    // 54, 0xd8 - GPIO
-    PWM0_IRQHandler,                    // 55, 0xdc - PWM0
-    EEPROM_IRQHandler,                  // 56, 0xe0 - EEPROM
-
-};
-
-//*****************************************************************************
-// Functions to carry out the initialization of RW and BSS data sections. These
-// are written as separate functions rather than being inlined within the
-// ResetISR() function in order to cope with MCUs with multiple banks of
-// memory.
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void data_init(unsigned int romstart, unsigned int start, unsigned int len) {
-    unsigned int *pulDest = (unsigned int*) start;
-    unsigned int *pulSrc = (unsigned int*) romstart;
-    unsigned int loop;
-    for (loop = 0; loop < len; loop = loop + 4)
-        *pulDest++ = *pulSrc++;
-}
-
-__attribute__ ((section(".after_vectors")))
-void bss_init(unsigned int start, unsigned int len) {
-    unsigned int *pulDest = (unsigned int*) start;
-    unsigned int loop;
-    for (loop = 0; loop < len; loop = loop + 4)
-        *pulDest++ = 0;
-}
-
-//*****************************************************************************
-// The following symbols are constructs generated by the linker, indicating
-// the location of various points in the "Global Section Table". This table is
-// created by the linker via the Code Red managed linker script mechanism. It
-// contains the load address, execution address and length of each RW data
-// section and the execution and length of each BSS (zero initialized) section.
-//*****************************************************************************
-extern unsigned int __data_section_table;
-extern unsigned int __data_section_table_end;
-extern unsigned int __bss_section_table;
-extern unsigned int __bss_section_table_end;
-
-//*****************************************************************************
-// Reset entry point for your code.
-// Sets up a simple runtime environment and initializes the C/C++
-// library.
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void
-ResetISR(void) {
-
-    //
-    // Copy the data sections from flash to SRAM.
-    //
-    unsigned int LoadAddr, ExeAddr, SectionLen;
-    unsigned int *SectionTableAddr;
-
-    // Load base address of Global Section Table
-    SectionTableAddr = &__data_section_table;
-
-    // Copy the data sections from flash to SRAM.
-    while (SectionTableAddr < &__data_section_table_end) {
-        LoadAddr = *SectionTableAddr++;
-        ExeAddr = *SectionTableAddr++;
-        SectionLen = *SectionTableAddr++;
-        data_init(LoadAddr, ExeAddr, SectionLen);
-    }
-    // At this point, SectionTableAddr = &__bss_section_table;
-    // Zero fill the bss segment
-    while (SectionTableAddr < &__bss_section_table_end) {
-        ExeAddr = *SectionTableAddr++;
-        SectionLen = *SectionTableAddr++;
-        bss_init(ExeAddr, SectionLen);
-    }
-
-#if defined (__VFP_FP__) && !defined (__SOFTFP__)
-/*
- * Code to enable the Cortex-M4 FPU only included
- * if appropriate build options have been selected.
- * Code taken from Section 7.1, Cortex-M4 TRM (DDI0439C)
- */  
-    // Read CPACR (located at address 0xE000ED88)
-    // Set bits 20-23 to enable CP10 and CP11 coprocessors
-    // Write back the modified value to the CPACR
-    asm volatile ("LDR.W R0, =0xE000ED88\n\t"
-                  "LDR R1, [R0]\n\t"
-                  "ORR R1, R1, #(0xF << 20)\n\t"
-                  "STR R1, [R0]");  
-#endif // (__VFP_FP__) && !(__SOFTFP__)
-
-    // Check to see if we are running the code from a non-zero
-    // address (eg RAM, external flash), in which case we need
-    // to modify the VTOR register to tell the CPU that the
-    // vector table is located at a non-0x0 address.
-
-    // Note that we do not use the CMSIS register access mechanism,
-    // as there is no guarantee that the project has been configured
-    // to use CMSIS.
-    unsigned int * pSCB_VTOR = (unsigned int *) 0xE000ED08;
-    if ((unsigned int *)g_pfnVectors!=(unsigned int *) 0x00000000) {
-        // CMSIS : SCB->VTOR = <address of vector table>
-        *pSCB_VTOR = (unsigned int)g_pfnVectors;
-    }
-
-#if defined (__USE_CMSIS) || defined (__USE_LPCOPEN)
-    SystemInit();
-#endif
-
-#if defined (__cplusplus)
-    //
-    // Call C++ library initialisation
-    //
-    __libc_init_array();
-#endif
-
-#if defined (__REDLIB__)
-    // Call the Redlib library, which in turn calls main()
-    __main() ;
-#else
-    main();
-#endif
-
-    //
-    // main() shouldn't return, but if it does, we'll just enter an infinite loop 
-    //
-    while (1) {
-        ;
-    }
-}
-
-//*****************************************************************************
-// Default exception handlers. Override the ones here by defining your own
-// handler routines in your application code.
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void NMI_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void HardFault_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void MemManage_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void BusFault_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void UsageFault_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void SVC_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void DebugMon_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void PendSV_Handler(void)
-{ while(1) {}
-}
-
-__attribute__ ((section(".after_vectors")))
-void SysTick_Handler(void)
-{ while(1) {}
-}
-
-//*****************************************************************************
-//
-// Processor ends up here if an unexpected interrupt occurs or a specific
-// handler is not present in the application code.
-//
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void IntDefaultHandler(void)
-{ while(1) {}
-}
diff --git a/hw/bsp/ea4357/board.mk b/hw/bsp/ea4357/board.mk
index a87f0d617..265d9b38b 100644
--- a/hw/bsp/ea4357/board.mk
+++ b/hw/bsp/ea4357/board.mk
@@ -7,6 +7,11 @@ CFLAGS += \
   -DCFG_TUSB_MCU=OPT_MCU_LPC43XX \
   -D__USE_LPCOPEN
 
+# lpc_types.h cause following errors
+CFLAGS += -Wno-error=strict-prototypes
+
+MCU_DIR = hw/mcu/nxp/lpc_driver/lpc43xx/lpc_chip_43xx
+
 # All source paths should be relative to the top level.
 LD_FILE = hw/bsp/ea4357/lpc4357.ld
 
@@ -14,17 +19,18 @@ LD_FILE = hw/bsp/ea4357/lpc4357.ld
 SRC_C += src/portable/$(VENDOR)/$(CHIP_FAMILY)/hal_$(CHIP_FAMILY).c
 
 SRC_C += \
-	hw/mcu/nxp/lpc_driver/lpc_chip_43xx/src/chip_18xx_43xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_43xx/src/clock_18xx_43xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_43xx/src/gpio_18xx_43xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_43xx/src/sysinit_18xx_43xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_43xx/src/i2c_18xx_43xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_43xx/src/i2cm_18xx_43xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_43xx/src/uart_18xx_43xx.c
+	$(MCU_DIR)/../gcc/cr_startup_lpc43xx.c \
+	$(MCU_DIR)/src/chip_18xx_43xx.c \
+	$(MCU_DIR)/src/clock_18xx_43xx.c \
+	$(MCU_DIR)/src/gpio_18xx_43xx.c \
+	$(MCU_DIR)/src/sysinit_18xx_43xx.c \
+	$(MCU_DIR)/src/i2c_18xx_43xx.c \
+	$(MCU_DIR)/src/i2cm_18xx_43xx.c \
+	$(MCU_DIR)/src/uart_18xx_43xx.c
 
 INC += \
-	$(TOP)/hw/mcu/nxp/lpc_driver/lpc_chip_43xx/inc \
-	$(TOP)/hw/mcu/nxp/lpc_driver/lpc_chip_43xx/inc/config_43xx
+	$(TOP)/$(MCU_DIR)/inc \
+	$(TOP)/$(MCU_DIR)/inc/config_43xx
 
 # For TinyUSB port source
 VENDOR = nxp
diff --git a/hw/bsp/ea4357/cr_startup_lpc43xx.c b/hw/bsp/ea4357/cr_startup_lpc43xx.c
deleted file mode 100644
index ea6bb145f..000000000
--- a/hw/bsp/ea4357/cr_startup_lpc43xx.c
+++ /dev/null
@@ -1,515 +0,0 @@
-//*****************************************************************************
-// LPC43xx (Cortex-M4) Microcontroller Startup code for use with LPCXpresso IDE
-//
-// Version : 150706
-//*****************************************************************************
-//
-// Copyright(C) NXP Semiconductors, 2013-2015
-// All rights reserved.
-//
-// Software that is described herein is for illustrative purposes only
-// which provides customers with programming information regarding the
-// LPC products.  This software is supplied "AS IS" without any warranties of
-// any kind, and NXP Semiconductors and its licensor disclaim any and
-// all warranties, express or implied, including all implied warranties of
-// merchantability, fitness for a particular purpose and non-infringement of
-// intellectual property rights.  NXP Semiconductors assumes no responsibility
-// or liability for the use of the software, conveys no license or rights under any
-// patent, copyright, mask work right, or any other intellectual property rights in
-// or to any products. NXP Semiconductors reserves the right to make changes
-// in the software without notification. NXP Semiconductors also makes no
-// representation or warranty that such application will be suitable for the
-// specified use without further testing or modification.
-//
-// Permission to use, copy, modify, and distribute this software and its
-// documentation is hereby granted, under NXP Semiconductors' and its
-// licensor's relevant copyrights in the software, without fee, provided that it
-// is used in conjunction with NXP Semiconductors microcontrollers.  This
-// copyright, permission, and disclaimer notice must appear in all copies of
-// this code.
-//*****************************************************************************
-
-#if defined (__cplusplus)
-#ifdef __REDLIB__
-#error Redlib does not support C++
-#else
-//*****************************************************************************
-//
-// The entry point for the C++ library startup
-//
-//*****************************************************************************
-extern "C" {
-    extern void __libc_init_array(void);
-}
-#endif
-#endif
-
-#define WEAK __attribute__ ((weak))
-#define ALIAS(f) __attribute__ ((weak, alias (#f)))
-
-//*****************************************************************************
-#if defined (__cplusplus)
-extern "C" {
-#endif
-
-//*****************************************************************************
-#if defined (__USE_CMSIS) || defined (__USE_LPCOPEN)
-// Declaration of external SystemInit function
-extern void SystemInit(void);
-#endif
-
-//*****************************************************************************
-//
-// Forward declaration of the default handlers. These are aliased.
-// When the application defines a handler (with the same name), this will 
-// automatically take precedence over these weak definitions
-//
-//*****************************************************************************
-void ResetISR(void);
-WEAK void NMI_Handler(void);
-WEAK void HardFault_Handler(void);
-WEAK void MemManage_Handler(void);
-WEAK void BusFault_Handler(void);
-WEAK void UsageFault_Handler(void);
-WEAK void SVC_Handler(void);
-WEAK void DebugMon_Handler(void);
-WEAK void PendSV_Handler(void);
-WEAK void SysTick_Handler(void);
-WEAK void IntDefaultHandler(void);
-
-//*****************************************************************************
-//
-// Forward declaration of the specific IRQ handlers. These are aliased
-// to the IntDefaultHandler, which is a 'forever' loop. When the application
-// defines a handler (with the same name), this will automatically take 
-// precedence over these weak definitions
-//
-//*****************************************************************************
-void DAC_IRQHandler(void) ALIAS(IntDefaultHandler);
-#if defined (__USE_LPCOPEN)
-void M0APP_IRQHandler(void) ALIAS(IntDefaultHandler);
-#else
-void M0CORE_IRQHandler(void) ALIAS(IntDefaultHandler);
-#endif
-void DMA_IRQHandler(void) ALIAS(IntDefaultHandler);
-void FLASH_EEPROM_IRQHandler(void) ALIAS(IntDefaultHandler);
-void ETH_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SDIO_IRQHandler(void) ALIAS(IntDefaultHandler);
-void LCD_IRQHandler(void) ALIAS(IntDefaultHandler);
-void USB0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void USB1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SCT_IRQHandler(void) ALIAS(IntDefaultHandler);
-void RIT_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER2_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER3_IRQHandler(void) ALIAS(IntDefaultHandler);
-void MCPWM_IRQHandler(void) ALIAS(IntDefaultHandler);
-void ADC0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2C0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SPI_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2C1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void ADC1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SSP0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SSP1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART2_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART3_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2S0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2S1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SPIFI_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SGPIO_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO2_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO3_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO4_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO5_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO6_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO7_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GINT0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GINT1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void EVRT_IRQHandler(void) ALIAS(IntDefaultHandler);
-void CAN1_IRQHandler(void) ALIAS(IntDefaultHandler);
-#if defined (__USE_LPCOPEN)
-void ADCHS_IRQHandler(void) ALIAS(IntDefaultHandler);
-#else
-void VADC_IRQHandler(void) ALIAS(IntDefaultHandler);
-#endif
-void ATIMER_IRQHandler(void) ALIAS(IntDefaultHandler);
-void RTC_IRQHandler(void) ALIAS(IntDefaultHandler);
-void WDT_IRQHandler(void) ALIAS(IntDefaultHandler);
-void M0SUB_IRQHandler(void) ALIAS(IntDefaultHandler);
-void CAN0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void QEI_IRQHandler(void) ALIAS(IntDefaultHandler);
-
-//*****************************************************************************
-//
-// The entry point for the application.
-// __main() is the entry point for Redlib based applications
-// main() is the entry point for Newlib based applications
-//
-//*****************************************************************************
-#if defined (__REDLIB__)
-extern void __main(void);
-#endif
-extern int main(void);
-//*****************************************************************************
-//
-// External declaration for the pointer to the stack top from the Linker Script
-//
-//*****************************************************************************
-extern void _vStackTop(void);
-
-//*****************************************************************************
-//
-// External declaration for LPC MCU vector table checksum from  Linker Script
-//
-//*****************************************************************************
-WEAK extern void __valid_user_code_checksum(void);
-
-//*****************************************************************************
-#if defined (__cplusplus)
-} // extern "C"
-#endif
-//*****************************************************************************
-//
-// The vector table.
-// This relies on the linker script to place at correct location in memory.
-//
-//*****************************************************************************
-extern void (* const g_pfnVectors[])(void);
-__attribute__ ((used,section(".isr_vector")))
-void (* const g_pfnVectors[])(void) = {
-    // Core Level - CM4
-    &_vStackTop,                    // The initial stack pointer
-    ResetISR,                       // The reset handler
-    NMI_Handler,                    // The NMI handler
-    HardFault_Handler,              // The hard fault handler
-    MemManage_Handler,              // The MPU fault handler
-    BusFault_Handler,               // The bus fault handler
-    UsageFault_Handler,             // The usage fault handler
-    __valid_user_code_checksum,             // LPC MCU Checksum
-    0,                              // Reserved
-    0,                              // Reserved
-    0,                              // Reserved
-    SVC_Handler,                    // SVCall handler
-    DebugMon_Handler,               // Debug monitor handler
-    0,                              // Reserved
-    PendSV_Handler,                 // The PendSV handler
-    SysTick_Handler,                // The SysTick handler
-
-    // Chip Level - LPC43 (M4)
-    DAC_IRQHandler,           // 16
-#if defined (__USE_LPCOPEN)
-    M0APP_IRQHandler,         // 17 CortexM4/M0 (LPC43XX ONLY)
-#else
-    M0CORE_IRQHandler,        // 17
-#endif
-    DMA_IRQHandler,           // 18
-    0,           // 19
-    FLASH_EEPROM_IRQHandler,  // 20 ORed flash Bank A, flash Bank B, EEPROM interrupts
-    ETH_IRQHandler,           // 21
-    SDIO_IRQHandler,          // 22
-    LCD_IRQHandler,           // 23
-    USB0_IRQHandler,          // 24
-    USB1_IRQHandler,          // 25
-    SCT_IRQHandler,           // 26
-    RIT_IRQHandler,           // 27
-    TIMER0_IRQHandler,        // 28
-    TIMER1_IRQHandler,        // 29
-    TIMER2_IRQHandler,        // 30
-    TIMER3_IRQHandler,        // 31
-    MCPWM_IRQHandler,         // 32
-    ADC0_IRQHandler,          // 33
-    I2C0_IRQHandler,          // 34
-    I2C1_IRQHandler,          // 35
-    SPI_IRQHandler,           // 36
-    ADC1_IRQHandler,          // 37
-    SSP0_IRQHandler,          // 38
-    SSP1_IRQHandler,          // 39
-    UART0_IRQHandler,         // 40
-    UART1_IRQHandler,         // 41
-    UART2_IRQHandler,         // 42
-    UART3_IRQHandler,         // 43
-    I2S0_IRQHandler,          // 44
-    I2S1_IRQHandler,          // 45
-    SPIFI_IRQHandler,         // 46
-    SGPIO_IRQHandler,         // 47
-    GPIO0_IRQHandler,         // 48
-    GPIO1_IRQHandler,         // 49
-    GPIO2_IRQHandler,         // 50
-    GPIO3_IRQHandler,         // 51
-    GPIO4_IRQHandler,         // 52
-    GPIO5_IRQHandler,         // 53
-    GPIO6_IRQHandler,         // 54
-    GPIO7_IRQHandler,         // 55
-    GINT0_IRQHandler,         // 56
-    GINT1_IRQHandler,         // 57
-    EVRT_IRQHandler,          // 58
-    CAN1_IRQHandler,          // 59
-    0,                        // 60
-#if defined (__USE_LPCOPEN)
-    ADCHS_IRQHandler,         // 61 ADCHS combined interrupt
-#else
-    VADC_IRQHandler,          // 61
-#endif
-    ATIMER_IRQHandler,        // 62
-    RTC_IRQHandler,           // 63
-    0,                        // 64
-    WDT_IRQHandler,           // 65
-    M0SUB_IRQHandler,         // 66
-    CAN0_IRQHandler,          // 67
-    QEI_IRQHandler,           // 68
-};
-
-
-//*****************************************************************************
-// Functions to carry out the initialization of RW and BSS data sections. These
-// are written as separate functions rather than being inlined within the
-// ResetISR() function in order to cope with MCUs with multiple banks of
-// memory.
-//*****************************************************************************
-        __attribute__((section(".after_vectors"
-)))
-void data_init(unsigned int romstart, unsigned int start, unsigned int len) {
-    unsigned int *pulDest = (unsigned int*) start;
-    unsigned int *pulSrc = (unsigned int*) romstart;
-    unsigned int loop;
-    for (loop = 0; loop < len; loop = loop + 4)
-        *pulDest++ = *pulSrc++;
-}
-
-__attribute__ ((section(".after_vectors")))
-void bss_init(unsigned int start, unsigned int len) {
-    unsigned int *pulDest = (unsigned int*) start;
-    unsigned int loop;
-    for (loop = 0; loop < len; loop = loop + 4)
-        *pulDest++ = 0;
-}
-
-//*****************************************************************************
-// The following symbols are constructs generated by the linker, indicating
-// the location of various points in the "Global Section Table". This table is
-// created by the linker via the Code Red managed linker script mechanism. It
-// contains the load address, execution address and length of each RW data
-// section and the execution and length of each BSS (zero initialized) section.
-//*****************************************************************************
-extern unsigned int __data_section_table;
-extern unsigned int __data_section_table_end;
-extern unsigned int __bss_section_table;
-extern unsigned int __bss_section_table_end;
-
-//*****************************************************************************
-// Reset entry point for your code.
-// Sets up a simple runtime environment and initializes the C/C++
-// library.
-//
-//*****************************************************************************
-void ResetISR(void) {
-
-// *************************************************************
-// The following conditional block of code manually resets as
-// much of the peripheral set of the LPC43 as possible. This is
-// done because the LPC43 does not provide a means of triggering
-// a full system reset under debugger control, which can cause
-// problems in certain circumstances when debugging.
-//
-// You can prevent this code block being included if you require
-// (for example when creating a final executable which you will
-// not debug) by setting the define 'DONT_RESET_ON_RESTART'.
-//
-#ifndef DONT_RESET_ON_RESTART
-
-    // Disable interrupts
-    __asm volatile ("cpsid i");
-    // equivalent to CMSIS '__disable_irq()' function
-
-    unsigned int *RESET_CONTROL = (unsigned int *) 0x40053100;
-    // LPC_RGU->RESET_CTRL0 @ 0x40053100
-    // LPC_RGU->RESET_CTRL1 @ 0x40053104
-    // Note that we do not use the CMSIS register access mechanism,
-    // as there is no guarantee that the project has been configured
-    // to use CMSIS.
-
-    // Write to LPC_RGU->RESET_CTRL0
-    *(RESET_CONTROL + 0) = 0x10DF1000;
-    // GPIO_RST|AES_RST|ETHERNET_RST|SDIO_RST|DMA_RST|
-    // USB1_RST|USB0_RST|LCD_RST|M0_SUB_RST
-
-    // Write to LPC_RGU->RESET_CTRL1
-    *(RESET_CONTROL + 1) = 0x01DFF7FF;
-    // M0APP_RST|CAN0_RST|CAN1_RST|I2S_RST|SSP1_RST|SSP0_RST|
-    // I2C1_RST|I2C0_RST|UART3_RST|UART1_RST|UART1_RST|UART0_RST|
-    // DAC_RST|ADC1_RST|ADC0_RST|QEI_RST|MOTOCONPWM_RST|SCT_RST|
-    // RITIMER_RST|TIMER3_RST|TIMER2_RST|TIMER1_RST|TIMER0_RST
-
-    // Clear all pending interrupts in the NVIC
-    volatile unsigned int *NVIC_ICPR = (unsigned int *) 0xE000E280;
-    unsigned int irqpendloop;
-    for (irqpendloop = 0; irqpendloop < 8; irqpendloop++) {
-        *(NVIC_ICPR + irqpendloop) = 0xFFFFFFFF;
-    }
-
-    // Reenable interrupts
-    __asm volatile ("cpsie i");
-    // equivalent to CMSIS '__enable_irq()' function
-
-#endif  // ifndef DONT_RESET_ON_RESTART
-// *************************************************************
-
-#if defined (__USE_LPCOPEN)
-    SystemInit();
-#endif
-
-    //
-    // Copy the data sections from flash to SRAM.
-    //
-    unsigned int LoadAddr, ExeAddr, SectionLen;
-    unsigned int *SectionTableAddr;
-
-    // Load base address of Global Section Table
-    SectionTableAddr = &__data_section_table;
-
-    // Copy the data sections from flash to SRAM.
-    while (SectionTableAddr < &__data_section_table_end) {
-        LoadAddr = *SectionTableAddr++;
-        ExeAddr = *SectionTableAddr++;
-        SectionLen = *SectionTableAddr++;
-        data_init(LoadAddr, ExeAddr, SectionLen);
-    }
-    // At this point, SectionTableAddr = &__bss_section_table;
-    // Zero fill the bss segment
-    while (SectionTableAddr < &__bss_section_table_end) {
-        ExeAddr = *SectionTableAddr++;
-        SectionLen = *SectionTableAddr++;
-        bss_init(ExeAddr, SectionLen);
-    }
-
-#if !defined (__USE_LPCOPEN)
-// LPCOpen init code deals with FP and VTOR initialisation
-#if defined (__VFP_FP__) && !defined (__SOFTFP__)
-    /*
-     * Code to enable the Cortex-M4 FPU only included
-     * if appropriate build options have been selected.
-     * Code taken from Section 7.1, Cortex-M4 TRM (DDI0439C)
-     */
-    // CPACR is located at address 0xE000ED88
-    asm("LDR.W R0, =0xE000ED88");
-    // Read CPACR
-    asm("LDR R1, [R0]");
-    // Set bits 20-23 to enable CP10 and CP11 coprocessors
-    asm(" ORR R1, R1, #(0xF << 20)");
-    // Write back the modified value to the CPACR
-    asm("STR R1, [R0]");
-#endif // (__VFP_FP__) && !(__SOFTFP__)
-    // ******************************
-    // Check to see if we are running the code from a non-zero
-    // address (eg RAM, external flash), in which case we need
-    // to modify the VTOR register to tell the CPU that the
-    // vector table is located at a non-0x0 address.
-
-    // Note that we do not use the CMSIS register access mechanism,
-    // as there is no guarantee that the project has been configured
-    // to use CMSIS.
-    unsigned int * pSCB_VTOR = (unsigned int *) 0xE000ED08;
-    if ((unsigned int *) g_pfnVectors != (unsigned int *) 0x00000000) {
-        // CMSIS : SCB->VTOR = <address of vector table>
-        *pSCB_VTOR = (unsigned int) g_pfnVectors;
-    }
-#endif
-
-#if defined (__USE_CMSIS)
-    SystemInit();
-#endif
-
-#if defined (__cplusplus)
-    //
-    // Call C++ library initialisation
-    //
-    __libc_init_array();
-#endif
-
-#if defined (__REDLIB__)
-    // Call the Redlib library, which in turn calls main()
-    __main();
-#else
-    main();
-#endif
-
-    //
-    // main() shouldn't return, but if it does, we'll just enter an infinite loop
-    //
-    while (1) {
-        ;
-    }
-}
-
-//*****************************************************************************
-// Default exception handlers. Override the ones here by defining your own
-// handler routines in your application code.
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void NMI_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void HardFault_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void MemManage_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void BusFault_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void UsageFault_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void SVC_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void DebugMon_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void PendSV_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void SysTick_Handler(void) {
-    while (1) {
-    }
-}
-
-//*****************************************************************************
-//
-// Processor ends up here if an unexpected interrupt occurs or a specific
-// handler is not present in the application code.
-//
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void IntDefaultHandler(void) {
-    while (1) {
-    }
-}
-
-
-
-
-
-
diff --git a/hw/bsp/lpcxpresso11u37/board.mk b/hw/bsp/lpcxpresso11u37/board.mk
index af398fc59..228765550 100644
--- a/hw/bsp/lpcxpresso11u37/board.mk
+++ b/hw/bsp/lpcxpresso11u37/board.mk
@@ -5,6 +5,7 @@ CFLAGS += \
   -nostdlib \
   -DCORE_M0 \
   -D__USE_LPCOPEN \
+  -DCFG_EXAMPLE_MSC_READONLY \
   -DCFG_TUSB_MCU=OPT_MCU_LPC11UXX \
   -DCFG_TUSB_MEM_SECTION='__attribute__((section(".data.$$RAM2")))' \
   -DCFG_TUSB_MEM_ALIGN='__attribute__((aligned(64)))' 
@@ -12,22 +13,22 @@ CFLAGS += \
 # startup.c and lpc_types.h cause following errors
 CFLAGS += -Wno-error=nested-externs -Wno-error=strict-prototypes
 
-MCU_DIR = hw/mcu/nxp/lpc_driver/lpc11uxx
+MCU_DIR = hw/mcu/nxp/lpc_driver/lpc11uxx/lpc_chip_11uxx
 
 # All source paths should be relative to the top level.
 LD_FILE = hw/bsp/lpcxpresso11u37/lpc11u37.ld
 
 SRC_C += \
-	$(MCU_DIR)/cr_startup_lpc11xx.c \
-	$(MCU_DIR)/lpc_chip_11uxx/src/chip_11xx.c \
-	$(MCU_DIR)/lpc_chip_11uxx/src/clock_11xx.c \
-	$(MCU_DIR)/lpc_chip_11uxx/src/gpio_11xx_1.c \
-	$(MCU_DIR)/lpc_chip_11uxx/src/iocon_11xx.c \
-	$(MCU_DIR)/lpc_chip_11uxx/src/sysctl_11xx.c \
-	$(MCU_DIR)/lpc_chip_11uxx/src/sysinit_11xx.c
+	$(MCU_DIR)/../gcc/cr_startup_lpc11xx.c \
+	$(MCU_DIR)/src/chip_11xx.c \
+	$(MCU_DIR)/src/clock_11xx.c \
+	$(MCU_DIR)/src/gpio_11xx_1.c \
+	$(MCU_DIR)/src/iocon_11xx.c \
+	$(MCU_DIR)/src/sysctl_11xx.c \
+	$(MCU_DIR)/src/sysinit_11xx.c
 
 INC += \
-	$(TOP)/$(MCU_DIR)/lpc_chip_11uxx/inc
+	$(TOP)/$(MCU_DIR)/inc
 
 # For TinyUSB port source
 VENDOR = nxp
diff --git a/hw/bsp/lpcxpresso11u68/board.mk b/hw/bsp/lpcxpresso11u68/board.mk
index 1ae34fedd..9396a599a 100644
--- a/hw/bsp/lpcxpresso11u68/board.mk
+++ b/hw/bsp/lpcxpresso11u68/board.mk
@@ -10,22 +10,22 @@ CFLAGS += \
   -DCFG_TUSB_MEM_SECTION='__attribute__((section(".data.$$RAM3")))' \
   -DCFG_TUSB_MEM_ALIGN='__attribute__((aligned(64)))' 
 
-MCU_DIR = hw/mcu/nxp/lpc_driver/lpc11u6x
+MCU_DIR = hw/mcu/nxp/lpc_driver/lpc11u6x/lpc_chip_11u6x
 
 # All source paths should be relative to the top level.
 LD_FILE = hw/bsp/lpcxpresso11u68/lpc11u68.ld
 
 SRC_C += \
-	$(MCU_DIR)/cr_startup_lpc11u6x.c \
-	$(MCU_DIR)/lpc_chip_11u6x/src/chip_11u6x.c \
-	$(MCU_DIR)/lpc_chip_11u6x/src/clock_11u6x.c \
-	$(MCU_DIR)/lpc_chip_11u6x/src/gpio_11u6x.c \
-	$(MCU_DIR)/lpc_chip_11u6x/src/iocon_11u6x.c \
-	$(MCU_DIR)/lpc_chip_11u6x/src/syscon_11u6x.c \
-	$(MCU_DIR)/lpc_chip_11u6x/src/sysinit_11u6x.c
+	$(MCU_DIR)/../gcc/cr_startup_lpc11u6x.c \
+	$(MCU_DIR)/src/chip_11u6x.c \
+	$(MCU_DIR)/src/clock_11u6x.c \
+	$(MCU_DIR)/src/gpio_11u6x.c \
+	$(MCU_DIR)/src/iocon_11u6x.c \
+	$(MCU_DIR)/src/syscon_11u6x.c \
+	$(MCU_DIR)/src/sysinit_11u6x.c
 
 INC += \
-	$(TOP)/$(MCU_DIR)/lpc_chip_11u6x/inc
+	$(TOP)/$(MCU_DIR)/inc
 
 # For TinyUSB port source
 VENDOR = nxp
diff --git a/hw/bsp/lpcxpresso1347/board.mk b/hw/bsp/lpcxpresso1347/board.mk
index a64120225..4e0c70392 100644
--- a/hw/bsp/lpcxpresso1347/board.mk
+++ b/hw/bsp/lpcxpresso1347/board.mk
@@ -5,6 +5,7 @@ CFLAGS += \
   -nostdlib \
   -DCORE_M3 \
   -D__USE_LPCOPEN \
+  -DCFG_EXAMPLE_MSC_READONLY \
   -DCFG_TUSB_MCU=OPT_MCU_LPC13XX \
   -DCFG_TUSB_MEM_SECTION='__attribute__((section(".data.$$RAM3")))' \
   -DCFG_TUSB_MEM_ALIGN='__attribute__((aligned(64)))' 
@@ -12,19 +13,22 @@ CFLAGS += \
 # startup.c and lpc_types.h cause following errors
 CFLAGS += -Wno-error=nested-externs -Wno-error=strict-prototypes
 
+MCU_DIR = hw/mcu/nxp/lpc_driver/lpc13xx/lpc_chip_13xx
+
 # All source paths should be relative to the top level.
 LD_FILE = hw/bsp/lpcxpresso1347/lpc1347.ld
 
 SRC_C += \
-	hw/mcu/nxp/lpc_driver/lpc_chip_13xx/src/chip_13xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_13xx/src/clock_13xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_13xx/src/gpio_13xx_1.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_13xx/src/iocon_13xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_13xx/src/sysctl_13xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_13xx/src/sysinit_13xx.c
+	$(MCU_DIR)/../gcc/cr_startup_lpc13xx.c \
+	$(MCU_DIR)/src/chip_13xx.c \
+	$(MCU_DIR)/src/clock_13xx.c \
+	$(MCU_DIR)/src/gpio_13xx_1.c \
+	$(MCU_DIR)/src/iocon_13xx.c \
+	$(MCU_DIR)/src/sysctl_13xx.c \
+	$(MCU_DIR)/src/sysinit_13xx.c
 
 INC += \
-	$(TOP)/hw/mcu/nxp/lpc_driver/lpc_chip_13xx/inc
+	$(TOP)/$(MCU_DIR)/inc
 
 # For TinyUSB port source
 VENDOR = nxp
diff --git a/hw/bsp/lpcxpresso1347/cr_startup_lpc13xx.c b/hw/bsp/lpcxpresso1347/cr_startup_lpc13xx.c
deleted file mode 100644
index 7768aa80e..000000000
--- a/hw/bsp/lpcxpresso1347/cr_startup_lpc13xx.c
+++ /dev/null
@@ -1,473 +0,0 @@
-//*****************************************************************************
-//   +--+       
-//   | ++----+   
-//   +-++    |  
-//     |     |  
-//   +-+--+  |   
-//   | +--+--+  
-//   +----+    Copyright (c) 2011-12 Code Red Technologies Ltd.
-//
-// Microcontroller Startup code for use with Red Suite
-//
-// Version : 120126
-//
-// Software License Agreement
-// 
-// The software is owned by Code Red Technologies and/or its suppliers, and is 
-// protected under applicable copyright laws.  All rights are reserved.  Any 
-// use in violation of the foregoing restrictions may subject the user to criminal 
-// sanctions under applicable laws, as well as to civil liability for the breach 
-// of the terms and conditions of this license.
-// 
-// THIS SOFTWARE IS PROVIDED "AS IS".  NO WARRANTIES, WHETHER EXPRESS, IMPLIED
-// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
-// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
-// USE OF THIS SOFTWARE FOR COMMERCIAL DEVELOPMENT AND/OR EDUCATION IS SUBJECT
-// TO A CURRENT END USER LICENSE AGREEMENT (COMMERCIAL OR EDUCATIONAL) WITH
-// CODE RED TECHNOLOGIES LTD. 
-//
-//*****************************************************************************
-#if defined (__cplusplus)
-#ifdef __REDLIB__
-#error Redlib does not support C++
-#else
-//*****************************************************************************
-//
-// The entry point for the C++ library startup
-//
-//*****************************************************************************
-extern "C" {
-	extern void __libc_init_array(void);
-}
-#endif
-#endif
-
-#define WEAK __attribute__ ((weak))
-#define ALIAS(f) __attribute__ ((weak, alias (#f)))
-/* Include sys_config.h to get the CHIP_11* device identifier */
-#include "sys_config.h"
-
-// Code Red - if CMSIS is being used, then SystemInit() routine
-// will be called by startup code rather than in application's main()
-extern void SystemInit(void);
-
-//*****************************************************************************
-#if defined (__cplusplus)
-extern "C" {
-#endif
-
-//*****************************************************************************
-//
-// Forward declaration of the default handlers. These are aliased.
-// When the application defines a handler (with the same name), this will 
-// automatically take precedence over these weak definitions
-//
-//*****************************************************************************
-void ResetISR(void);
-WEAK void NMI_Handler(void);
-WEAK void HardFault_Handler(void);
-WEAK void SVC_Handler(void);
-WEAK void PendSV_Handler(void);
-WEAK void SysTick_Handler(void);
-WEAK void IntDefaultHandler(void);
-
-//*****************************************************************************
-//
-// Forward declaration of the specific IRQ handlers. These are aliased
-// to the IntDefaultHandler, which is a 'forever' loop. When the application
-// defines a handler (with the same name), this will automatically take
-// precedence over these weak definitions
-//
-//*****************************************************************************
-
-#if defined(CHIP_LPC1343)
-void WAKEUP_IRQHandler (void) ALIAS(IntDefaultHandler);
-void I2C_IRQHandler (void) ALIAS(IntDefaultHandler);
-void TIMER16_0_IRQHandler (void) ALIAS(IntDefaultHandler);
-void TIMER16_1_IRQHandler (void) ALIAS(IntDefaultHandler);
-void TIMER32_0_IRQHandler (void) ALIAS(IntDefaultHandler);
-void TIMER32_1_IRQHandler (void) ALIAS(IntDefaultHandler);
-void SSP0_IRQHandler (void) ALIAS(IntDefaultHandler);
-void UART_IRQHandler (void) ALIAS(IntDefaultHandler);
-void USB_IRQHandler (void) ALIAS(IntDefaultHandler);
-void USB_FIQHandler (void) ALIAS(IntDefaultHandler);
-void ADC_IRQHandler (void) ALIAS(IntDefaultHandler);
-void WDT_IRQHandler (void) ALIAS(IntDefaultHandler);
-void BOD_IRQHandler (void) ALIAS(IntDefaultHandler);
-void FMC_IRQHandler (void) ALIAS(IntDefaultHandler);
-void PIOINT3_IRQHandler (void) ALIAS(IntDefaultHandler);
-void PIOINT2_IRQHandler (void) ALIAS(IntDefaultHandler);
-void PIOINT1_IRQHandler (void) ALIAS(IntDefaultHandler);
-void PIOINT0_IRQHandler (void) ALIAS(IntDefaultHandler);
-
-#elif defined(CHIP_LPC1347)
-void PIN_INT0_IRQHandler (void) ALIAS(IntDefaultHandler);
-void PIN_INT1_IRQHandler (void) ALIAS(IntDefaultHandler);
-void PIN_INT2_IRQHandler (void) ALIAS(IntDefaultHandler);
-void PIN_INT3_IRQHandler (void) ALIAS(IntDefaultHandler);
-void PIN_INT4_IRQHandler (void) ALIAS(IntDefaultHandler);
-void PIN_INT5_IRQHandler (void) ALIAS(IntDefaultHandler);
-void PIN_INT6_IRQHandler (void) ALIAS(IntDefaultHandler);
-void PIN_INT7_IRQHandler (void) ALIAS(IntDefaultHandler);
-void GINT0_IRQHandler (void) ALIAS(IntDefaultHandler);
-void GINT1_IRQHandler (void) ALIAS(IntDefaultHandler);
-void RIT_IRQHandler (void) ALIAS(IntDefaultHandler);
-void SSP1_IRQHandler (void) ALIAS(IntDefaultHandler);
-void I2C_IRQHandler (void) ALIAS(IntDefaultHandler);
-void TIMER16_0_IRQHandler (void) ALIAS(IntDefaultHandler);
-void TIMER16_1_IRQHandler (void) ALIAS(IntDefaultHandler);
-void TIMER32_0_IRQHandler (void) ALIAS(IntDefaultHandler);
-void TIMER32_1_IRQHandler (void) ALIAS(IntDefaultHandler);
-void SSP0_IRQHandler (void) ALIAS(IntDefaultHandler);
-void UART_IRQHandler (void) ALIAS(IntDefaultHandler);
-void USB_IRQHandler (void) ALIAS(IntDefaultHandler);
-void USB_FIQHandler (void) ALIAS(IntDefaultHandler);
-void ADC_IRQHandler (void) ALIAS(IntDefaultHandler);
-void WDT_IRQHandler (void) ALIAS(IntDefaultHandler);
-void BOD_IRQHandler (void) ALIAS(IntDefaultHandler);
-void FMC_IRQHandler (void) ALIAS(IntDefaultHandler);
-void OSCFAIL_IRQHandler (void) ALIAS(IntDefaultHandler);
-void PVTCIRCUIT_IRQHandler (void) ALIAS(IntDefaultHandler);
-void USBWakeup_IRQHandler  (void) ALIAS(IntDefaultHandler);
-
-#else
-#error No CHIP_134* device defined  
-#endif
-
-//*****************************************************************************
-//
-// The entry point for the application.
-// __main() is the entry point for redlib based applications
-// main() is the entry point for newlib based applications
-//
-//*****************************************************************************
-//
-// The entry point for the application.
-// __main() is the entry point for Redlib based applications
-// main() is the entry point for Newlib based applications
-//
-//*****************************************************************************
-#if defined (__REDLIB__)
-extern void __main(void);
-#endif
-extern int main(void);
-//*****************************************************************************
-//
-// External declaration for the pointer to the stack top from the Linker Script
-//
-//*****************************************************************************
-extern void _vStackTop(void);
-
-//*****************************************************************************
-#if defined (__cplusplus)
-} // extern "C"
-#endif
-
-//*****************************************************************************
-//
-// The vector table.  Note that the proper constructs must be placed on this to
-// ensure that it ends up at physical address 0x0000.0000.
-//
-//*****************************************************************************
-extern void (* const g_pfnVectors[])(void);
-__attribute__ ((section(".isr_vector"))) __attribute__ ((used))
-void (* const g_pfnVectors[])(void) = {
-    &_vStackTop,		      // The initial stack pointer
-    ResetISR,                         // The reset handler
-    NMI_Handler,                      // The NMI handler
-    HardFault_Handler,                // The hard fault handler
-    0,                                // Reserved
-    0,                      	      // Reserved
-    0,                                // Reserved
-    0,                                // Reserved
-    0,                                // Reserved
-    0,                                // Reserved
-    0,                                // Reserved
-    SVC_Handler,                   // SVCall handler
-    0,                                // Reserved
-    0,                                // Reserved
-    PendSV_Handler,                   // The PendSV handler
-    SysTick_Handler,                  // The SysTick handler
-
-#if defined(CHIP_LPC1343)
-	WAKEUP_IRQHandler,        // Wakeup PIO0.0
-	WAKEUP_IRQHandler,        // Wakeup PIO0.1
-	WAKEUP_IRQHandler,        // Wakeup PIO0.2
-	WAKEUP_IRQHandler,        // Wakeup PIO0.3
-	WAKEUP_IRQHandler,        // Wakeup PIO0.4
-	WAKEUP_IRQHandler,        // Wakeup PIO0.5
-	WAKEUP_IRQHandler,        // Wakeup PIO0.6
-	WAKEUP_IRQHandler,        // Wakeup PIO0.7
-	WAKEUP_IRQHandler,        // Wakeup PIO0.8
-	WAKEUP_IRQHandler,        // Wakeup PIO0.9
-	WAKEUP_IRQHandler,        // Wakeup PIO0.10
-	WAKEUP_IRQHandler,        // Wakeup PIO0.11
-	WAKEUP_IRQHandler,        // Wakeup PIO1.0
-	WAKEUP_IRQHandler,        // Wakeup PIO1.1
-	WAKEUP_IRQHandler,        // Wakeup PIO1.2
-	WAKEUP_IRQHandler,        // Wakeup PIO1.3
-	WAKEUP_IRQHandler,        // Wakeup PIO1.4
-	WAKEUP_IRQHandler,        // Wakeup PIO1.5
-	WAKEUP_IRQHandler,        // Wakeup PIO1.6
-	WAKEUP_IRQHandler,        // Wakeup PIO1.7
-	WAKEUP_IRQHandler,        // Wakeup PIO1.8
-	WAKEUP_IRQHandler,        // Wakeup PIO1.9
-	WAKEUP_IRQHandler,        // Wakeup PIO1.10
-	WAKEUP_IRQHandler,        // Wakeup PIO1.11
-	WAKEUP_IRQHandler,        // Wakeup PIO2.0
-	WAKEUP_IRQHandler,        // Wakeup PIO2.1
-	WAKEUP_IRQHandler,        // Wakeup PIO2.2
-	WAKEUP_IRQHandler,        // Wakeup PIO2.3
-	WAKEUP_IRQHandler,        // Wakeup PIO2.4
-	WAKEUP_IRQHandler,        // Wakeup PIO2.5
-	WAKEUP_IRQHandler,        // Wakeup PIO2.6
-	WAKEUP_IRQHandler,        // Wakeup PIO2.7
-	WAKEUP_IRQHandler,        // Wakeup PIO2.8
-	WAKEUP_IRQHandler,        // Wakeup PIO2.9
-	WAKEUP_IRQHandler,        // Wakeup PIO2.10
-	WAKEUP_IRQHandler,        // Wakeup PIO2.11
-	WAKEUP_IRQHandler,        // Wakeup PIO3.0
-	WAKEUP_IRQHandler,        // Wakeup PIO3.1
-	WAKEUP_IRQHandler,        // Wakeup PIO3.2
-	WAKEUP_IRQHandler,        // Wakeup PIO3.3
-	I2C_IRQHandler,           // I2C
-	TIMER16_0_IRQHandler,     // 16-bit Counter-Timer 0
-	TIMER16_1_IRQHandler,     // 16-bit Counter-Timer 1
-	TIMER32_0_IRQHandler,     // 32-bit Counter-Timer 0
-	TIMER32_1_IRQHandler,     // 32-bit Counter-Timer 1
-	SSP0_IRQHandler,          // SSP0
-	UART_IRQHandler,          // UART
-	USB_IRQHandler,           // USB IRQ
-	USB_FIQHandler,           // USB FIQ
-	ADC_IRQHandler,           // A/D Converter
-	WDT_IRQHandler,           // Watchdog Timer
-	BOD_IRQHandler,           // Brown Out Detect
-	FMC_IRQHandler,           // IP2111 Flash Memory Controller
-	PIOINT3_IRQHandler,       // PIO INT3
-	PIOINT2_IRQHandler,       // PIO INT2
-	PIOINT1_IRQHandler,       // PIO INT1
-	PIOINT0_IRQHandler,       // PIO INT0
-
-#elif defined(CHIP_LPC1347)
-	PIN_INT0_IRQHandler,      // All GPIO pin can be routed to PIN_INTx
-	PIN_INT1_IRQHandler,         
-	PIN_INT2_IRQHandler,                      
-	PIN_INT3_IRQHandler,                        
-	PIN_INT4_IRQHandler,                       
-	PIN_INT5_IRQHandler,
-	PIN_INT6_IRQHandler,
-	PIN_INT7_IRQHandler,
-	GINT0_IRQHandler,                        
-	GINT1_IRQHandler,         // PIO0 (0:7)              
-	0,
-	0,
-	RIT_IRQHandler,      
-	0,
-	SSP1_IRQHandler,          // SSP1
-	I2C_IRQHandler,           // I2C
-	TIMER16_0_IRQHandler,     // 16-bit Counter-Timer 0
-	TIMER16_1_IRQHandler,     // 16-bit Counter-Timer 1
-	TIMER32_0_IRQHandler,     // 32-bit Counter-Timer 0
-	TIMER32_1_IRQHandler,     // 32-bit Counter-Timer 1
-	SSP0_IRQHandler,          // SSP0
-	UART_IRQHandler,          // UART
-	USB_IRQHandler,           // USB IRQ
-	USB_FIQHandler,           // USB FIQ
-	ADC_IRQHandler,           // A/D Converter
-	WDT_IRQHandler,           // Watchdog Timer
-	BOD_IRQHandler,           // Brown Out Detect
-	FMC_IRQHandler,           // IP2111 Flash Memory Controller
-	OSCFAIL_IRQHandler,       // OSC FAIL
-	PVTCIRCUIT_IRQHandler,    // PVT CIRCUIT
-	USBWakeup_IRQHandler,     // USB wake up
-	0,
-
-#else
-#error No CHIP_13* device defined  
-#endif
-};
-
-//*****************************************************************************
-// Functions to carry out the initialization of RW and BSS data sections. These
-// are written as separate functions rather than being inlined within the
-// ResetISR() function in order to cope with MCUs with multiple banks of
-// memory.
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void data_init(unsigned int romstart, unsigned int start, unsigned int len) {
-	unsigned int *pulDest = (unsigned int*) start;
-	unsigned int *pulSrc = (unsigned int*) romstart;
-	unsigned int loop;
-	for (loop = 0; loop < len; loop = loop + 4)
-		*pulDest++ = *pulSrc++;
-}
-
-__attribute__ ((section(".after_vectors")))
-void bss_init(unsigned int start, unsigned int len) {
-	unsigned int *pulDest = (unsigned int*) start;
-	unsigned int loop;
-	for (loop = 0; loop < len; loop = loop + 4)
-		*pulDest++ = 0;
-}
-
-#ifndef USE_OLD_STYLE_DATA_BSS_INIT
-//*****************************************************************************
-// The following symbols are constructs generated by the linker, indicating
-// the location of various points in the "Global Section Table". This table is
-// created by the linker via the Code Red managed linker script mechanism. It
-// contains the load address, execution address and length of each RW data
-// section and the execution and length of each BSS (zero initialized) section.
-//*****************************************************************************
-extern unsigned int __data_section_table;
-extern unsigned int __data_section_table_end;
-extern unsigned int __bss_section_table;
-extern unsigned int __bss_section_table_end;
-#else
-//*****************************************************************************
-// The following symbols are constructs generated by the linker, indicating
-// the load address, execution address and length of the RW data section and
-// the execution and length of the BSS (zero initialized) section.
-// Note that these symbols are not normally used by the managed linker script
-// mechanism in Red Suite/LPCXpresso 3.6 (Windows) and LPCXpresso 3.8 (Linux).
-// They are provide here simply so this startup code can be used with earlier
-// versions of Red Suite which do not support the more advanced managed linker
-// script mechanism introduced in the above version. To enable their use,
-// define "USE_OLD_STYLE_DATA_BSS_INIT".
-//*****************************************************************************
-extern unsigned int _etext;
-extern unsigned int _data;
-extern unsigned int _edata;
-extern unsigned int _bss;
-extern unsigned int _ebss;
-#endif
-
-
-//*****************************************************************************
-// Reset entry point for your code.
-// Sets up a simple runtime environment and initializes the C/C++
-// library.
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void
-ResetISR(void) {
-
-#ifndef USE_OLD_STYLE_DATA_BSS_INIT
-    //
-    // Copy the data sections from flash to SRAM.
-    //
-	unsigned int LoadAddr, ExeAddr, SectionLen;
-	unsigned int *SectionTableAddr;
-
-	// Load base address of Global Section Table
-	SectionTableAddr = &__data_section_table;
-
-    // Copy the data sections from flash to SRAM.
-	while (SectionTableAddr < &__data_section_table_end) {
-		LoadAddr = *SectionTableAddr++;
-		ExeAddr = *SectionTableAddr++;
-		SectionLen = *SectionTableAddr++;
-		data_init(LoadAddr, ExeAddr, SectionLen);
-	}
-	// At this point, SectionTableAddr = &__bss_section_table;
-	// Zero fill the bss segment
-	while (SectionTableAddr < &__bss_section_table_end) {
-		ExeAddr = *SectionTableAddr++;
-		SectionLen = *SectionTableAddr++;
-		bss_init(ExeAddr, SectionLen);
-	}
-#else
-	// Use Old Style Data and BSS section initialization.
-	// This will only initialize a single RAM bank.
-	unsigned int * LoadAddr, *ExeAddr, *EndAddr, SectionLen;
-
-    // Copy the data segment from flash to SRAM.
-	LoadAddr = &_etext;
-	ExeAddr = &_data;
-	EndAddr = &_edata;
-	SectionLen = (void*)EndAddr - (void*)ExeAddr;
-	data_init((unsigned int)LoadAddr, (unsigned int)ExeAddr, SectionLen);
-	// Zero fill the bss segment
-	ExeAddr = &_bss;
-	EndAddr = &_ebss;
-	SectionLen = (void*)EndAddr - (void*)ExeAddr;
-	bss_init ((unsigned int)ExeAddr, SectionLen);
-#endif
-
-	extern void SystemInit(void);
-	SystemInit();
-
-#if defined (__cplusplus)
-	//
-	// Call C++ library initialisation
-	//
-	__libc_init_array();
-#endif
-
-#if defined (__REDLIB__)
-	// Call the Redlib library, which in turn calls main()
-	__main() ;
-#else
-	main();
-#endif
-	//
-	// main() shouldn't return, but if it does, we'll just enter an infinite loop
-	//
-	while (1) {
-		;
-	}
-}
-
-//*****************************************************************************
-// Default exception handlers. Override the ones here by defining your own
-// handler routines in your application code.
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void NMI_Handler(void)
-{
-    while(1)
-    {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void HardFault_Handler(void)
-{
-    while(1)
-    {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void SVC_Handler(void)
-{
-    while(1)
-    {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void PendSV_Handler(void)
-{
-    while(1)
-    {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void SysTick_Handler(void)
-{
-    while(1)
-    {
-    }
-}
-
-//*****************************************************************************
-//
-// Processor ends up here if an unexpected interrupt occurs or a specific
-// handler is not present in the application code.
-//
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void IntDefaultHandler(void)
-{
-    while(1)
-    {
-    }
-}
-
diff --git a/hw/bsp/lpcxpresso1769/board.mk b/hw/bsp/lpcxpresso1769/board.mk
index 03bdf145d..8bbc89138 100644
--- a/hw/bsp/lpcxpresso1769/board.mk
+++ b/hw/bsp/lpcxpresso1769/board.mk
@@ -11,26 +11,26 @@ CFLAGS += \
 # lpc_types.h cause following errors
 CFLAGS += -Wno-error=strict-prototypes
 
+MCU_DIR = hw/mcu/nxp/lpc_driver/lpc175x_6x/lpc_chip_175x_6x
+
 # All source paths should be relative to the top level.
 LD_FILE = hw/bsp/lpcxpresso1769/lpc1769.ld
 
-MCU_DIR = hw/mcu/nxp/lpc_driver/lpc175x_6x
-
 # TODO remove later
 SRC_C += src/portable/$(VENDOR)/$(CHIP_FAMILY)/hal_$(CHIP_FAMILY).c
 
 SRC_C += \
-	$(MCU_DIR)/cr_startup_lpc175x_6x.c \
-	$(MCU_DIR)/lpc_chip_175x_6x/src/chip_17xx_40xx.c \
-	$(MCU_DIR)/lpc_chip_175x_6x/src/clock_17xx_40xx.c \
-	$(MCU_DIR)/lpc_chip_175x_6x/src/gpio_17xx_40xx.c \
-	$(MCU_DIR)/lpc_chip_175x_6x/src/iocon_17xx_40xx.c \
-	$(MCU_DIR)/lpc_chip_175x_6x/src/sysctl_17xx_40xx.c \
-	$(MCU_DIR)/lpc_chip_175x_6x/src/sysinit_17xx_40xx.c \
-	$(MCU_DIR)/lpc_chip_175x_6x/src/uart_17xx_40xx.c
+	$(MCU_DIR)/../gcc/cr_startup_lpc175x_6x.c \
+	$(MCU_DIR)/src/chip_17xx_40xx.c \
+	$(MCU_DIR)/src/clock_17xx_40xx.c \
+	$(MCU_DIR)/src/gpio_17xx_40xx.c \
+	$(MCU_DIR)/src/iocon_17xx_40xx.c \
+	$(MCU_DIR)/src/sysctl_17xx_40xx.c \
+	$(MCU_DIR)/src/sysinit_17xx_40xx.c \
+	$(MCU_DIR)/src/uart_17xx_40xx.c
 
 INC += \
-	$(TOP)/$(MCU_DIR)/lpc_chip_175x_6x/inc
+	$(TOP)/$(MCU_DIR)/inc
 
 # For TinyUSB port source
 VENDOR = nxp
diff --git a/hw/bsp/mbed1768/board.mk b/hw/bsp/mbed1768/board.mk
index 8eac31b71..4e4cd1d8f 100644
--- a/hw/bsp/mbed1768/board.mk
+++ b/hw/bsp/mbed1768/board.mk
@@ -11,26 +11,26 @@ CFLAGS += \
 # startup.c and lpc_types.h cause following errors
 CFLAGS += -Wno-error=nested-externs -Wno-error=strict-prototypes
 
+MCU_DIR = hw/mcu/nxp/lpc_driver/lpc175x_6x/lpc_chip_175x_6x
+
 # All source paths should be relative to the top level.
 LD_FILE = hw/bsp/mbed1768/lpc1768.ld
 
-MCU_DIR = hw/mcu/nxp/lpc_driver/lpc175x_6x
-
 # TODO remove later
 SRC_C += src/portable/$(VENDOR)/$(CHIP_FAMILY)/hal_$(CHIP_FAMILY).c
 
 SRC_C += \
-	$(MCU_DIR)/cr_startup_lpc175x_6x.c \
-	$(MCU_DIR)/lpc_chip_175x_6x/src/chip_17xx_40xx.c \
-	$(MCU_DIR)/lpc_chip_175x_6x/src/clock_17xx_40xx.c \
-	$(MCU_DIR)/lpc_chip_175x_6x/src/gpio_17xx_40xx.c \
-	$(MCU_DIR)/lpc_chip_175x_6x/src/iocon_17xx_40xx.c \
-	$(MCU_DIR)/lpc_chip_175x_6x/src/sysctl_17xx_40xx.c \
-	$(MCU_DIR)/lpc_chip_175x_6x/src/sysinit_17xx_40xx.c \
-	$(MCU_DIR)/lpc_chip_175x_6x/src/uart_17xx_40xx.c
+	$(MCU_DIR)/../gcc/cr_startup_lpc175x_6x.c \
+	$(MCU_DIR)/src/chip_17xx_40xx.c \
+	$(MCU_DIR)/src/clock_17xx_40xx.c \
+	$(MCU_DIR)/src/gpio_17xx_40xx.c \
+	$(MCU_DIR)/src/iocon_17xx_40xx.c \
+	$(MCU_DIR)/src/sysctl_17xx_40xx.c \
+	$(MCU_DIR)/src/sysinit_17xx_40xx.c \
+	$(MCU_DIR)/src/uart_17xx_40xx.c
 
 INC += \
-	$(TOP)/$(MCU_DIR)/lpc_chip_175x_6x/inc
+	$(TOP)/$(MCU_DIR)/inc
 
 # For TinyUSB port source
 VENDOR = nxp
diff --git a/hw/bsp/mcb1800/board.mk b/hw/bsp/mcb1800/board.mk
index bd4a61e0d..4a59c043a 100644
--- a/hw/bsp/mcb1800/board.mk
+++ b/hw/bsp/mcb1800/board.mk
@@ -10,6 +10,8 @@ CFLAGS += \
 # lpc_types.h cause following errors
 CFLAGS += -Wno-error=strict-prototypes
 
+MCU_DIR = hw/mcu/nxp/lpc_driver/lpc18xx/lpc_chip_18xx
+
 # All source paths should be relative to the top level.
 LD_FILE = hw/bsp/mcb1800/lpc1857.ld
 
@@ -17,15 +19,16 @@ LD_FILE = hw/bsp/mcb1800/lpc1857.ld
 SRC_C += src/portable/$(VENDOR)/$(CHIP_FAMILY)/hal_$(CHIP_FAMILY).c
 
 SRC_C += \
-	hw/mcu/nxp/lpc_driver/lpc_chip_18xx/src/chip_18xx_43xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_18xx/src/clock_18xx_43xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_18xx/src/gpio_18xx_43xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_18xx/src/sysinit_18xx_43xx.c \
-	hw/mcu/nxp/lpc_driver/lpc_chip_18xx/src/uart_18xx_43xx.c
+	$(MCU_DIR)/../gcc/cr_startup_lpc18xx.c \
+	$(MCU_DIR)/src/chip_18xx_43xx.c \
+	$(MCU_DIR)/src/clock_18xx_43xx.c \
+	$(MCU_DIR)/src/gpio_18xx_43xx.c \
+	$(MCU_DIR)/src/sysinit_18xx_43xx.c \
+	$(MCU_DIR)/src/uart_18xx_43xx.c
 
 INC += \
-	$(TOP)/hw/mcu/nxp/lpc_driver/lpc_chip_18xx/inc \
-	$(TOP)/hw/mcu/nxp/lpc_driver/lpc_chip_18xx/inc/config_18xx
+	$(TOP)/$(MCU_DIR)/inc \
+	$(TOP)/$(MCU_DIR)/inc/config_18xx
 
 # For TinyUSB port source
 VENDOR = nxp
diff --git a/hw/bsp/mcb1800/cr_startup_lpc18xx.c b/hw/bsp/mcb1800/cr_startup_lpc18xx.c
deleted file mode 100644
index 0962b111c..000000000
--- a/hw/bsp/mcb1800/cr_startup_lpc18xx.c
+++ /dev/null
@@ -1,477 +0,0 @@
-//*****************************************************************************
-// LPC18xx Microcontroller Startup code for use with LPCXpresso IDE
-//
-// Version : 150706
-//*****************************************************************************
-//
-// Copyright(C) NXP Semiconductors, 2013-2015
-// All rights reserved.
-//
-// Software that is described herein is for illustrative purposes only
-// which provides customers with programming information regarding the
-// LPC products.  This software is supplied "AS IS" without any warranties of
-// any kind, and NXP Semiconductors and its licensor disclaim any and
-// all warranties, express or implied, including all implied warranties of
-// merchantability, fitness for a particular purpose and non-infringement of
-// intellectual property rights.  NXP Semiconductors assumes no responsibility
-// or liability for the use of the software, conveys no license or rights under any
-// patent, copyright, mask work right, or any other intellectual property rights in
-// or to any products. NXP Semiconductors reserves the right to make changes
-// in the software without notification. NXP Semiconductors also makes no
-// representation or warranty that such application will be suitable for the
-// specified use without further testing or modification.
-//
-// Permission to use, copy, modify, and distribute this software and its
-// documentation is hereby granted, under NXP Semiconductors' and its
-// licensor's relevant copyrights in the software, without fee, provided that it
-// is used in conjunction with NXP Semiconductors microcontrollers.  This
-// copyright, permission, and disclaimer notice must appear in all copies of
-// this code.
-//*****************************************************************************
-
-#if defined (__cplusplus)
-#ifdef __REDLIB__
-#error Redlib does not support C++
-#else
-//*****************************************************************************
-//
-// The entry point for the C++ library startup
-//
-//*****************************************************************************
-extern "C" {
-    extern void __libc_init_array(void);
-}
-#endif
-#endif
-
-#define WEAK __attribute__ ((weak))
-#define ALIAS(f) __attribute__ ((weak, alias (#f)))
-
-//*****************************************************************************
-#if defined (__cplusplus)
-extern "C" {
-#endif
-
-//*****************************************************************************
-#if defined (__USE_CMSIS) || defined (__USE_LPCOPEN)
-// Declaration of external SystemInit function
-extern void SystemInit(void);
-#endif
-
-//*****************************************************************************
-//
-// Forward declaration of the default handlers. These are aliased.
-// When the application defines a handler (with the same name), this will 
-// automatically take precedence over these weak definitions
-//
-//*****************************************************************************
-     void ResetISR(void);
-WEAK void NMI_Handler(void);
-WEAK void HardFault_Handler(void);
-WEAK void MemManage_Handler(void);
-WEAK void BusFault_Handler(void);
-WEAK void UsageFault_Handler(void);
-WEAK void SVC_Handler(void);
-WEAK void DebugMon_Handler(void);
-WEAK void PendSV_Handler(void);
-WEAK void SysTick_Handler(void);
-WEAK void IntDefaultHandler(void);
-
-//*****************************************************************************
-//
-// Forward declaration of the specific IRQ handlers. These are aliased
-// to the IntDefaultHandler, which is a 'forever' loop. When the application
-// defines a handler (with the same name), this will automatically take 
-// precedence over these weak definitions
-//
-//*****************************************************************************
-void DAC_IRQHandler(void) ALIAS(IntDefaultHandler);
-void DMA_IRQHandler(void) ALIAS(IntDefaultHandler);
-void FLASH_EEPROM_IRQHandler(void) ALIAS(IntDefaultHandler);
-void ETH_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SDIO_IRQHandler(void) ALIAS(IntDefaultHandler);
-void LCD_IRQHandler(void) ALIAS(IntDefaultHandler);
-void USB0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void USB1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SCT_IRQHandler(void) ALIAS(IntDefaultHandler);
-void RIT_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER2_IRQHandler(void) ALIAS(IntDefaultHandler);
-void TIMER3_IRQHandler(void) ALIAS(IntDefaultHandler);
-void MCPWM_IRQHandler(void) ALIAS(IntDefaultHandler);
-void ADC0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2C0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2C1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void ADC1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SSP0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SSP1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART2_IRQHandler(void) ALIAS(IntDefaultHandler);
-void UART3_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2S0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void I2S1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SPIFI_IRQHandler(void) ALIAS(IntDefaultHandler);
-void SGPIO_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO2_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO3_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO4_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO5_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO6_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GPIO7_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GINT0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void GINT1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void EVRT_IRQHandler(void) ALIAS(IntDefaultHandler);
-void CAN1_IRQHandler(void) ALIAS(IntDefaultHandler);
-void ATIMER_IRQHandler(void) ALIAS(IntDefaultHandler);
-void RTC_IRQHandler(void) ALIAS(IntDefaultHandler);
-void WDT_IRQHandler(void) ALIAS(IntDefaultHandler);
-void CAN0_IRQHandler(void) ALIAS(IntDefaultHandler);
-void QEI_IRQHandler(void) ALIAS(IntDefaultHandler);
-
-//*****************************************************************************
-//
-// The entry point for the application.
-// __main() is the entry point for Redlib based applications
-// main() is the entry point for Newlib based applications
-//
-//*****************************************************************************
-#if defined (__REDLIB__)
-extern void __main(void);
-#endif
-extern int main(void);
-//*****************************************************************************
-//
-// External declaration for the pointer to the stack top from the Linker Script
-//
-//*****************************************************************************
-extern void _vStackTop(void);
-
-//*****************************************************************************
-//
-// External declaration for LPC MCU vector table checksum from  Linker Script
-//
-//*****************************************************************************
-WEAK extern void __valid_user_code_checksum(void);
-
-//*****************************************************************************
-#if defined (__cplusplus)
-} // extern "C"
-#endif
-//*****************************************************************************
-//
-// The vector table.
-// This relies on the linker script to place at correct location in memory.
-//
-//*****************************************************************************
-extern void (* const g_pfnVectors[])(void);
-__attribute__ ((used,section(".isr_vector")))
-void (* const g_pfnVectors[])(void) = {
-    // Core Level - CM3
-    &_vStackTop, // The initial stack pointer
-    ResetISR,                               // The reset handler
-    NMI_Handler,                            // The NMI handler
-    HardFault_Handler,                      // The hard fault handler
-    MemManage_Handler,                      // The MPU fault handler
-    BusFault_Handler,                       // The bus fault handler
-    UsageFault_Handler,                     // The usage fault handler
-    __valid_user_code_checksum,             // LPC MCU Checksum
-    0,                                      // Reserved
-    0,                                      // Reserved
-    0,                                      // Reserved
-    SVC_Handler,                            // SVCall handler
-    DebugMon_Handler,                       // Debug monitor handler
-    0,                                      // Reserved
-    PendSV_Handler,                         // The PendSV handler
-    SysTick_Handler,                        // The SysTick handler
-
-    // Chip Level - LPC18
-    DAC_IRQHandler,             // 16
-    0,                          // 17
-    DMA_IRQHandler,             // 18
-    0,                          // 19
-    FLASH_EEPROM_IRQHandler,    // 20 ORed flash Bank A, flash Bank B, EEPROM interrupts
-    ETH_IRQHandler,             // 21
-    SDIO_IRQHandler,            // 22
-    LCD_IRQHandler,             // 23
-    USB0_IRQHandler,            // 24
-    USB1_IRQHandler,            // 25
-    SCT_IRQHandler,             // 26
-    RIT_IRQHandler,             // 27
-    TIMER0_IRQHandler,          // 28
-    TIMER1_IRQHandler,          // 29
-    TIMER2_IRQHandler,          // 30
-    TIMER3_IRQHandler,          // 31
-    MCPWM_IRQHandler,           // 32
-    ADC0_IRQHandler,            // 33
-    I2C0_IRQHandler,            // 34
-    I2C1_IRQHandler,            // 35
-    0,                          // 36
-    ADC1_IRQHandler,            // 37
-    SSP0_IRQHandler,            // 38
-    SSP1_IRQHandler,            // 39
-    UART0_IRQHandler,           // 40
-    UART1_IRQHandler,           // 41
-    UART2_IRQHandler,           // 42
-    UART3_IRQHandler,           // 43
-    I2S0_IRQHandler,            // 44
-    I2S1_IRQHandler,            // 45
-    SPIFI_IRQHandler,           // 46
-    SGPIO_IRQHandler,           // 47
-    GPIO0_IRQHandler,           // 48
-    GPIO1_IRQHandler,           // 49
-    GPIO2_IRQHandler,           // 50
-    GPIO3_IRQHandler,           // 51
-    GPIO4_IRQHandler,           // 52
-    GPIO5_IRQHandler,           // 53
-    GPIO6_IRQHandler,           // 54
-    GPIO7_IRQHandler,           // 55
-    GINT0_IRQHandler,           // 56
-    GINT1_IRQHandler,           // 57
-    EVRT_IRQHandler,            // 58
-    CAN1_IRQHandler,            // 59
-    0,                          // 60
-    0,                          // 61
-    ATIMER_IRQHandler,          // 62
-    RTC_IRQHandler,             // 63
-    0,                          // 64
-    WDT_IRQHandler,             // 65
-    0,                          // 66
-    CAN0_IRQHandler,            // 67
-    QEI_IRQHandler,             // 68
-};
-
-//*****************************************************************************
-// Functions to carry out the initialization of RW and BSS data sections. These
-// are written as separate functions rather than being inlined within the
-// ResetISR() function in order to cope with MCUs with multiple banks of
-// memory.
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void data_init(unsigned int romstart, unsigned int start, unsigned int len) {
-    unsigned int *pulDest = (unsigned int*) start;
-    unsigned int *pulSrc = (unsigned int*) romstart;
-    unsigned int loop;
-    for (loop = 0; loop < len; loop = loop + 4)
-        *pulDest++ = *pulSrc++;
-}
-
-__attribute__ ((section(".after_vectors")))
-void bss_init(unsigned int start, unsigned int len) {
-    unsigned int *pulDest = (unsigned int*) start;
-    unsigned int loop;
-    for (loop = 0; loop < len; loop = loop + 4)
-        *pulDest++ = 0;
-}
-
-//*****************************************************************************
-// The following symbols are constructs generated by the linker, indicating
-// the location of various points in the "Global Section Table". This table is
-// created by the linker via the Code Red managed linker script mechanism. It
-// contains the load address, execution address and length of each RW data
-// section and the execution and length of each BSS (zero initialized) section.
-//*****************************************************************************
-extern unsigned int __data_section_table;
-extern unsigned int __data_section_table_end;
-extern unsigned int __bss_section_table;
-extern unsigned int __bss_section_table_end;
-
-//*****************************************************************************
-// Reset entry point for your code.
-// Sets up a simple runtime environment and initializes the C/C++
-// library.
-//
-//*****************************************************************************
-void
-ResetISR(void) {
-
-// *************************************************************
-// The following conditional block of code manually resets as
-// much of the peripheral set of the LPC18 as possible. This is
-// done because the LPC18 does not provide a means of triggering
-// a full system reset under debugger control, which can cause
-// problems in certain circumstances when debugging.
-//
-// You can prevent this code block being included if you require
-// (for example when creating a final executable which you will
-// not debug) by setting the define 'DONT_RESET_ON_RESTART'.
-//
-#ifndef DONT_RESET_ON_RESTART
-
-    // Disable interrupts
-    __asm volatile ("cpsid i");
-    // equivalent to CMSIS '__disable_irq()' function
-
-    unsigned int *RESET_CONTROL = (unsigned int *) 0x40053100;
-    // LPC_RGU->RESET_CTRL0 @ 0x40053100
-    // LPC_RGU->RESET_CTRL1 @ 0x40053104
-    // Note that we do not use the CMSIS register access mechanism,
-    // as there is no guarantee that the project has been configured
-    // to use CMSIS.
-
-    // Write to LPC_RGU->RESET_CTRL0
-    *(RESET_CONTROL+0) = 0x10DF0000;
-    // GPIO_RST|AES_RST|ETHERNET_RST|SDIO_RST|DMA_RST|
-    // USB1_RST|USB0_RST|LCD_RST
-
-    // Write to LPC_RGU->RESET_CTRL1
-    *(RESET_CONTROL+1) = 0x00DFF7FF;
-    // CAN0_RST|CAN1_RST|I2S_RST|SSP1_RST|SSP0_RST|
-    // I2C1_RST|I2C0_RST|UART3_RST|UART1_RST|UART1_RST|UART0_RST|
-    // DAC_RST|ADC1_RST|ADC0_RST|QEI_RST|MOTOCONPWM_RST|SCT_RST|
-    // RITIMER_RST|TIMER3_RST|TIMER2_RST|TIMER1_RST|TIMER0_RST
-
-    // Clear all pending interrupts in the NVIC
-    volatile unsigned int *NVIC_ICPR = (unsigned int *) 0xE000E280;
-    unsigned int irqpendloop;
-    for (irqpendloop = 0; irqpendloop < 8; irqpendloop++) {
-        *(NVIC_ICPR+irqpendloop)= 0xFFFFFFFF;
-    }
-
-    // Reenable interrupts
-    __asm volatile ("cpsie i");
-    // equivalent to CMSIS '__enable_irq()' function
-
-#endif  // ifndef DONT_RESET_ON_RESTART
-// *************************************************************
-
-
-#if defined (__USE_LPCOPEN)
-    SystemInit();
-#endif
-
-    //
-    // Copy the data sections from flash to SRAM.
-    //
-    unsigned int LoadAddr, ExeAddr, SectionLen;
-    unsigned int *SectionTableAddr;
-
-    // Load base address of Global Section Table
-    SectionTableAddr = &__data_section_table;
-
-    // Copy the data sections from flash to SRAM.
-    while (SectionTableAddr < &__data_section_table_end) {
-        LoadAddr = *SectionTableAddr++;
-        ExeAddr = *SectionTableAddr++;
-        SectionLen = *SectionTableAddr++;
-        data_init(LoadAddr, ExeAddr, SectionLen);
-    }
-    // At this point, SectionTableAddr = &__bss_section_table;
-    // Zero fill the bss segment
-    while (SectionTableAddr < &__bss_section_table_end) {
-        ExeAddr = *SectionTableAddr++;
-        SectionLen = *SectionTableAddr++;
-        bss_init(ExeAddr, SectionLen);
-    }
-
-    // ******************************
-    // Check to see if we are running the code from a non-zero
-        // address (eg RAM, external flash), in which case we need
-        // to modify the VTOR register to tell the CPU that the
-        // vector table is located at a non-0x0 address.
-
-    // Note that we do not use the CMSIS register access mechanism,
-    // as there is no guarantee that the project has been configured
-    // to use CMSIS.
-    unsigned int * pSCB_VTOR = (unsigned int *) 0xE000ED08;
-    if ((unsigned int *)g_pfnVectors!=(unsigned int *) 0x00000000) {
-        // CMSIS : SCB->VTOR = <address of vector table>
-        *pSCB_VTOR = (unsigned int)g_pfnVectors;
-    }
-
-#if defined (__USE_CMSIS)
-    SystemInit();
-#endif
-
-#if defined (__cplusplus)
-    //
-    // Call C++ library initialisation
-    //
-    __libc_init_array();
-#endif
-
-#if defined (__REDLIB__)
-    // Call the Redlib library, which in turn calls main()
-    __main() ;
-#else
-    main();
-#endif
-
-    //
-    // main() shouldn't return, but if it does, we'll just enter an infinite loop 
-    //
-    while (1) {
-        ;
-    }
-}
-
-//*****************************************************************************
-// Default exception handlers. Override the ones here by defining your own
-// handler routines in your application code.
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void NMI_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void HardFault_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void MemManage_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void BusFault_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void UsageFault_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void SVC_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void DebugMon_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void PendSV_Handler(void) {
-    while (1) {
-    }
-}
-__attribute__ ((section(".after_vectors")))
-void SysTick_Handler(void) {
-    while (1) {
-    }
-}
-
-//*****************************************************************************
-//
-// Processor ends up here if an unexpected interrupt occurs or a specific
-// handler is not present in the application code.
-//
-//*****************************************************************************
-__attribute__ ((section(".after_vectors")))
-void IntDefaultHandler(void) {
-    while (1) {
-    }
-}
-
-
-
-
-
-
diff --git a/hw/bsp/ngx4330/board.mk b/hw/bsp/ngx4330/board.mk
new file mode 100644
index 000000000..852c883b0
--- /dev/null
+++ b/hw/bsp/ngx4330/board.mk
@@ -0,0 +1,45 @@
+CFLAGS += \
+  -mthumb \
+  -mabi=aapcs \
+  -mcpu=cortex-m4 \
+  -nostdlib \
+  -DCORE_M4 \
+  -DCFG_TUSB_MCU=OPT_MCU_LPC43XX \
+  -D__USE_LPCOPEN
+
+# lpc_types.h cause following errors
+CFLAGS += -Wno-error=strict-prototypes
+
+MCU_DIR = hw/mcu/nxp/lpc_driver/lpc43xx/lpc_chip_43xx
+
+# All source paths should be relative to the top level.
+LD_FILE = hw/bsp/$(BOARD)/ngx4330.ld
+
+# TODO remove later
+SRC_C += src/portable/$(VENDOR)/$(CHIP_FAMILY)/hal_$(CHIP_FAMILY).c
+
+SRC_C += \
+	$(MCU_DIR)/../gcc/cr_startup_lpc43xx.c \
+	$(MCU_DIR)/src/chip_18xx_43xx.c \
+	$(MCU_DIR)/src/clock_18xx_43xx.c \
+	$(MCU_DIR)/src/gpio_18xx_43xx.c \
+	$(MCU_DIR)/src/sysinit_18xx_43xx.c \
+	$(MCU_DIR)/src/uart_18xx_43xx.c
+
+INC += \
+	$(TOP)/$(MCU_DIR)/inc \
+	$(TOP)/$(MCU_DIR)/inc/config_43xx
+
+# For TinyUSB port source
+VENDOR = nxp
+CHIP_FAMILY = lpc18_43
+
+# For freeRTOS port source
+FREERTOS_PORT = ARM_CM4
+
+# For flash-jlink target
+JLINK_DEVICE = LPC4330
+JLINK_IF = swd 
+
+# flash using jlink
+flash: flash-jlink
diff --git a/hw/bsp/ngx4330/ngx4330.c b/hw/bsp/ngx4330/ngx4330.c
new file mode 100644
index 000000000..0e39ea711
--- /dev/null
+++ b/hw/bsp/ngx4330/ngx4330.c
@@ -0,0 +1,263 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#include "chip.h"
+#include "../board.h"
+
+#define LED_PORT              1
+#define LED_PIN               12
+#define LED_STATE_ON          0
+
+#define BUTTON_PORT           0
+#define BUTTON_PIN            7
+#define BUTTON_STATE_ACTIVE   0
+
+#define BOARD_UART_PORT           LPC_USART0
+#define BOARD_UART_PIN_PORT       0x0f
+#define BOARD_UART_PIN_TX         10 // PF.10 : UART0_TXD
+#define BOARD_UART_PIN_RX         11 // PF.11 : UART0_RXD
+
+/*------------------------------------------------------------------*/
+/* BOARD API
+ *------------------------------------------------------------------*/
+
+/* System configuration variables used by chip driver */
+const uint32_t OscRateIn = 12000000;
+const uint32_t ExtRateIn = 0;
+
+static const PINMUX_GRP_T pinmuxing[] =
+{
+  // LED P2.12 as GPIO 1.12
+  {2, 11, (SCU_MODE_INBUFF_EN | SCU_MODE_PULLDOWN | SCU_MODE_FUNC0)},
+
+  // Button P2.7 as GPIO 0.7
+  {2, 7,  (SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC0)},
+
+  // USB
+  {2, 6, (SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_FUNC4)}, // USB1_PWR_EN
+  {2, 5, (SCU_MODE_INACT | SCU_MODE_INBUFF_EN | SCU_MODE_ZIF_DIS | SCU_MODE_FUNC2)}, // USB1_VBUS
+  {1, 7, (SCU_MODE_PULLUP | SCU_MODE_INBUFF_EN | SCU_MODE_FUNC4)}, // USB0_PWRN_EN
+
+  // SPIFI
+	{3, 3,  (SCU_PINIO_FAST | SCU_MODE_FUNC3)},	/* SPIFI CLK */
+	{3, 4,  (SCU_PINIO_FAST | SCU_MODE_FUNC3)},	/* SPIFI D3 */
+	{3, 5,  (SCU_PINIO_FAST | SCU_MODE_FUNC3)},	/* SPIFI D2 */
+	{3, 6,  (SCU_PINIO_FAST | SCU_MODE_FUNC3)},	/* SPIFI D1 */
+	{3, 7,  (SCU_PINIO_FAST | SCU_MODE_FUNC3)},	/* SPIFI D0 */
+	{3, 8,  (SCU_PINIO_FAST | SCU_MODE_FUNC3)}	/* SPIFI CS/SSEL */
+};
+
+// Invoked by startup code
+extern void (* const g_pfnVectors[])(void);
+void SystemInit(void)
+{
+  // Remap isr vector
+	*((uint32_t *) 0xE000ED08) = (uint32_t) &g_pfnVectors;
+
+	// Set up pinmux
+	Chip_SCU_SetPinMuxing(pinmuxing, sizeof(pinmuxing) / sizeof(PINMUX_GRP_T));
+
+	//------------- Set up clock -------------//
+	Chip_Clock_SetBaseClock(CLK_BASE_SPIFI, CLKIN_IRC, true, false);	// change SPIFI to IRC during clock programming
+	LPC_SPIFI->CTRL |= SPIFI_CTRL_FBCLK(1);								            // and set FBCLK in SPIFI controller
+
+	Chip_SetupCoreClock(CLKIN_CRYSTAL, MAX_CLOCK_FREQ, true);
+
+	/* Reset and enable 32Khz oscillator */
+	LPC_CREG->CREG0 &= ~((1 << 3) | (1 << 2));
+	LPC_CREG->CREG0 |= (1 << 1) | (1 << 0);
+
+	/* Setup a divider E for main PLL clock switch SPIFI clock to that divider.
+	   Divide rate is based on CPU speed and speed of SPI FLASH part. */
+#if (MAX_CLOCK_FREQ > 180000000)
+	Chip_Clock_SetDivider(CLK_IDIV_E, CLKIN_MAINPLL, 5);
+#else
+	Chip_Clock_SetDivider(CLK_IDIV_E, CLKIN_MAINPLL, 4);
+#endif
+	Chip_Clock_SetBaseClock(CLK_BASE_SPIFI, CLKIN_IDIVE, true, false);
+
+	/* Setup system base clocks and initial states. This won't enable and
+	   disable individual clocks, but sets up the base clock sources for
+	   each individual peripheral clock. */
+	Chip_Clock_SetBaseClock(CLK_BASE_USB1, CLKIN_IDIVD, true, true);
+}
+
+void board_init(void)
+{
+  SystemCoreClockUpdate();
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+  // 1ms tick timer
+  SysTick_Config(SystemCoreClock / 1000);
+#elif CFG_TUSB_OS == OPT_OS_FREERTOS
+  // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher )
+  //NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
+#endif
+
+  Chip_GPIO_Init(LPC_GPIO_PORT);
+
+  // LED
+  Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, LED_PORT, LED_PIN);
+
+  // Button
+  Chip_GPIO_SetPinDIRInput(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN);
+
+#if 0
+  //------------- UART -------------//
+  scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_TX, MD_PDN, FUNC1);
+  scu_pinmux(BOARD_UART_PIN_PORT, BOARD_UART_PIN_RX, MD_PLN | MD_EZI | MD_ZI, FUNC1);
+
+  UART_CFG_Type UARTConfigStruct;
+  UART_ConfigStructInit(&UARTConfigStruct);
+  UARTConfigStruct.Baud_rate   = CFG_UART_BAUDRATE;
+  UARTConfigStruct.Clock_Speed = 0;
+
+  UART_Init(BOARD_UART_PORT, &UARTConfigStruct);
+  UART_TxCmd(BOARD_UART_PORT, ENABLE); // Enable UART Transmit
+#endif
+
+  //------------- USB -------------//
+  enum {
+    USBMODE_DEVICE = 2,
+    USBMODE_HOST   = 3
+  };
+
+  enum {
+    USBMODE_VBUS_LOW  = 0,
+    USBMODE_VBUS_HIGH = 1
+  };
+
+  /* USB0
+   * For USB Device operation; insert jumpers in position 1-2 in JP17/JP18/JP19. GPIO28 controls USB
+   * connect functionality and LED32 lights when the USB Device is connected. SJ4 has pads 1-2 shorted
+   * by default. LED33 is controlled by GPIO27 and signals USB-up state. GPIO54 is used for VBUS
+   * sensing.
+   * For USB Host operation; insert jumpers in position 2-3 in JP17/JP18/JP19. USB Host power is
+   * controlled via distribution switch U20 (found in schematic page 11). Signal GPIO26 is active low and
+   * enables +5V on VBUS2. LED35 light whenever +5V is present on VBUS2. GPIO55 is connected to
+   * status feedback from the distribution switch. GPIO54 is used for VBUS sensing. 15Kohm pull-down
+   * resistors are always active
+   */
+#if CFG_TUSB_RHPORT0_MODE
+  Chip_USB0_Init();
+
+  // Reset controller
+  LPC_USB0->USBCMD_D |= 0x02;
+  while( LPC_USB0->USBCMD_D & 0x02 ) {}
+
+  // Set mode
+  #if CFG_TUSB_RHPORT0_MODE & OPT_MODE_HOST
+    LPC_USB0->USBMODE_H = USBMODE_HOST | (USBMODE_VBUS_HIGH << 5);
+
+    LPC_USB0->PORTSC1_D |= (1<<24); // FIXME force full speed for debugging
+  #else // TODO OTG
+    LPC_USB0->USBMODE_D = USBMODE_DEVICE;
+    LPC_USB0->OTGSC = (1<<3) | (1<<0) /*| (1<<16)| (1<<24)| (1<<25)| (1<<26)| (1<<27)| (1<<28)| (1<<29)| (1<<30)*/;
+  #endif
+#endif
+
+  /* USB1
+   * When USB channel #1 is used as USB Host, 15Kohm pull-down resistors are needed on the USB data
+   * signals. These are activated inside the USB OTG chip (U31), and this has to be done via the I2C
+   * interface of GPIO52/GPIO53.
+   * J20 is the connector to use when USB Host is used. In order to provide +5V to the external USB
+   * device connected to this connector (J20), channel A of U20 must be enabled. It is enabled by default
+   * since SJ5 is normally connected between pin 1-2. LED34 lights green when +5V is available on J20.
+   * JP15 shall not be inserted. JP16 has no effect
+   *
+   * When USB channel #1 is used as USB Device, a 1.5Kohm pull-up resistor is needed on the USB DP
+   * data signal. There are two methods to create this. JP15 is inserted and the pull-up resistor is always
+   * enabled. Alternatively, the pull-up resistor is activated inside the USB OTG chip (U31), and this has to
+   * be done via the I2C interface of GPIO52/GPIO53. In the latter case, JP15 shall not be inserted.
+   * J19 is the connector to use when USB Device is used. Normally it should be a USB-B connector for
+   * creating a USB Device interface, but the mini-AB connector can also be used in this case. The status
+   * of VBUS can be read via U31.
+   * JP16 shall not be inserted.
+   */
+#if CFG_TUSB_RHPORT1_MODE
+  Chip_USB1_Init();
+
+  // Reset controller
+  LPC_USB1->USBCMD_D |= 0x02;
+  while( LPC_USB1->USBCMD_D & 0x02 ) {}
+
+  // Set mode
+  #if CFG_TUSB_RHPORT1_MODE & OPT_MODE_HOST
+    LPC_USB1->USBMODE_H = USBMODE_HOST | (USBMODE_VBUS_HIGH << 5);
+  #else // TODO OTG
+    LPC_USB1->USBMODE_D = USBMODE_DEVICE;
+  #endif
+
+  // USB1 as fullspeed
+  LPC_USB1->PORTSC1_D |= (1<<24);
+
+//	Chip_GPIO_SetPinDIROutput(LPC_GPIO_PORT, 5, 6);							/* GPIO5[6] = USB1_PWR_EN */
+//	Chip_GPIO_SetPinState(LPC_GPIO_PORT, 5, 6, true);							/* GPIO5[6] output high */
+#endif
+}
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+void board_led_write(bool state)
+{
+  Chip_GPIO_SetPinState(LPC_GPIO_PORT, LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
+}
+
+uint32_t board_button_read(void)
+{
+  return BUTTON_STATE_ACTIVE == Chip_GPIO_GetPinState(LPC_GPIO_PORT, BUTTON_PORT, BUTTON_PIN);
+}
+
+int board_uart_read(uint8_t* buf, int len)
+{
+  //return UART_ReceiveByte(BOARD_UART_PORT);
+  (void) buf;
+  (void) len;
+  return 0;
+}
+
+int board_uart_write(void const * buf, int len)
+{
+  //UART_Send(BOARD_UART_PORT, &c, 1, BLOCKING);
+  (void) buf;
+  (void) len;
+  return 0;
+}
+
+#if CFG_TUSB_OS == OPT_OS_NONE
+volatile uint32_t system_ticks = 0;
+void SysTick_Handler (void)
+{
+  system_ticks++;
+}
+
+uint32_t board_millis(void)
+{
+  return system_ticks;
+}
+#endif
diff --git a/hw/bsp/ngx4330/ngx4330.ld b/hw/bsp/ngx4330/ngx4330.ld
new file mode 100644
index 000000000..7bd363f08
--- /dev/null
+++ b/hw/bsp/ngx4330/ngx4330.ld
@@ -0,0 +1,343 @@
+/*
+ * GENERATED FILE - DO NOT EDIT
+ * Copyright (c) 2008-2013 Code Red Technologies Ltd,
+ * Copyright 2015, 2018-2019 NXP
+ * (c) NXP Semiconductors 2013-2019
+ * Generated linker script file for LPC4330
+ * Created from linkscript.ldt by FMCreateLinkLibraries
+ * Using Freemarker v2.3.23
+ * MCUXpresso IDE v11.0.0 [Build 2516] [2019-06-05] on Sep 9, 2019 12:09:49 PM
+ */
+
+MEMORY
+{
+  /* Define each memory region */
+  RamLoc128 (rwx) : ORIGIN = 0x10000000, LENGTH = 0x20000 /* 128K bytes (alias RAM) */  
+  RamLoc72 (rwx) : ORIGIN = 0x10080000, LENGTH = 0x12000 /* 72K bytes (alias RAM2) */  
+  RamAHB32 (rwx) : ORIGIN = 0x20000000, LENGTH = 0x8000 /* 32K bytes (alias RAM3) */  
+  RamAHB16 (rwx) : ORIGIN = 0x20008000, LENGTH = 0x4000 /* 16K bytes (alias RAM4) */  
+  RamAHB_ETB16 (rwx) : ORIGIN = 0x2000c000, LENGTH = 0x4000 /* 16K bytes (alias RAM5) */  
+  SPIFI (rx) : ORIGIN = 0x14000000, LENGTH = 0x400000 /* 4M bytes (alias Flash) */  
+}
+
+  /* Define a symbol for the top of each memory region */
+  __base_RamLoc128 = 0x10000000  ; /* RamLoc128 */  
+  __base_RAM = 0x10000000 ; /* RAM */  
+  __top_RamLoc128 = 0x10000000 + 0x20000 ; /* 128K bytes */  
+  __top_RAM = 0x10000000 + 0x20000 ; /* 128K bytes */  
+  __base_RamLoc72 = 0x10080000  ; /* RamLoc72 */  
+  __base_RAM2 = 0x10080000 ; /* RAM2 */  
+  __top_RamLoc72 = 0x10080000 + 0x12000 ; /* 72K bytes */  
+  __top_RAM2 = 0x10080000 + 0x12000 ; /* 72K bytes */  
+  __base_RamAHB32 = 0x20000000  ; /* RamAHB32 */  
+  __base_RAM3 = 0x20000000 ; /* RAM3 */  
+  __top_RamAHB32 = 0x20000000 + 0x8000 ; /* 32K bytes */  
+  __top_RAM3 = 0x20000000 + 0x8000 ; /* 32K bytes */  
+  __base_RamAHB16 = 0x20008000  ; /* RamAHB16 */  
+  __base_RAM4 = 0x20008000 ; /* RAM4 */  
+  __top_RamAHB16 = 0x20008000 + 0x4000 ; /* 16K bytes */  
+  __top_RAM4 = 0x20008000 + 0x4000 ; /* 16K bytes */  
+  __base_RamAHB_ETB16 = 0x2000c000  ; /* RamAHB_ETB16 */  
+  __base_RAM5 = 0x2000c000 ; /* RAM5 */  
+  __top_RamAHB_ETB16 = 0x2000c000 + 0x4000 ; /* 16K bytes */  
+  __top_RAM5 = 0x2000c000 + 0x4000 ; /* 16K bytes */  
+  __base_SPIFI = 0x14000000  ; /* SPIFI */  
+  __base_Flash = 0x14000000 ; /* Flash */  
+  __top_SPIFI = 0x14000000 + 0x400000 ; /* 4M bytes */  
+  __top_Flash = 0x14000000 + 0x400000 ; /* 4M bytes */  
+
+ENTRY(ResetISR)
+
+SECTIONS
+{
+     /* MAIN TEXT SECTION */
+    .text : ALIGN(4)
+    {
+        FILL(0xff)
+        __vectors_start__ = ABSOLUTE(.) ;
+        KEEP(*(.isr_vector))
+        /* Global Section Table */
+        . = ALIGN(4) ;
+        __section_table_start = .;
+        __data_section_table = .;
+        LONG(LOADADDR(.data));
+        LONG(    ADDR(.data));
+        LONG(  SIZEOF(.data));
+        LONG(LOADADDR(.data_RAM2));
+        LONG(    ADDR(.data_RAM2));
+        LONG(  SIZEOF(.data_RAM2));
+        LONG(LOADADDR(.data_RAM3));
+        LONG(    ADDR(.data_RAM3));
+        LONG(  SIZEOF(.data_RAM3));
+        LONG(LOADADDR(.data_RAM4));
+        LONG(    ADDR(.data_RAM4));
+        LONG(  SIZEOF(.data_RAM4));
+        LONG(LOADADDR(.data_RAM5));
+        LONG(    ADDR(.data_RAM5));
+        LONG(  SIZEOF(.data_RAM5));
+        __data_section_table_end = .;
+        __bss_section_table = .;
+        LONG(    ADDR(.bss));
+        LONG(  SIZEOF(.bss));
+        LONG(    ADDR(.bss_RAM2));
+        LONG(  SIZEOF(.bss_RAM2));
+        LONG(    ADDR(.bss_RAM3));
+        LONG(  SIZEOF(.bss_RAM3));
+        LONG(    ADDR(.bss_RAM4));
+        LONG(  SIZEOF(.bss_RAM4));
+        LONG(    ADDR(.bss_RAM5));
+        LONG(  SIZEOF(.bss_RAM5));
+        __bss_section_table_end = .;
+        __section_table_end = . ;
+        /* End of Global Section Table */
+
+        *(.after_vectors*)
+
+    } > SPIFI
+
+    .text : ALIGN(4)
+    {
+       *(.text*)
+       *(.rodata .rodata.* .constdata .constdata.*)
+       . = ALIGN(4);
+    } > SPIFI
+    /*
+     * for exception handling/unwind - some Newlib functions (in common
+     * with C++ and STDC++) use this. 
+     */
+    .ARM.extab : ALIGN(4) 
+    {
+        *(.ARM.extab* .gnu.linkonce.armextab.*)
+    } > SPIFI
+
+    __exidx_start = .;
+
+    .ARM.exidx : ALIGN(4)
+    {
+        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+    } > SPIFI
+    __exidx_end = .;
+ 
+    _etext = .;
+        
+    /* DATA section for RamLoc72 */
+
+    .data_RAM2 : ALIGN(4)
+    {
+        FILL(0xff)
+        PROVIDE(__start_data_RAM2 = .) ;
+        *(.ramfunc.$RAM2)
+        *(.ramfunc.$RamLoc72)
+        *(.data.$RAM2)
+        *(.data.$RamLoc72)
+        *(.data.$RAM2.*)
+        *(.data.$RamLoc72.*)
+        . = ALIGN(4) ;
+        PROVIDE(__end_data_RAM2 = .) ;
+     } > RamLoc72 AT>SPIFI
+    /* DATA section for RamAHB32 */
+
+    .data_RAM3 : ALIGN(4)
+    {
+        FILL(0xff)
+        PROVIDE(__start_data_RAM3 = .) ;
+        *(.ramfunc.$RAM3)
+        *(.ramfunc.$RamAHB32)
+        *(.data.$RAM3)
+        *(.data.$RamAHB32)
+        *(.data.$RAM3.*)
+        *(.data.$RamAHB32.*)
+        . = ALIGN(4) ;
+        PROVIDE(__end_data_RAM3 = .) ;
+     } > RamAHB32 AT>SPIFI
+    /* DATA section for RamAHB16 */
+
+    .data_RAM4 : ALIGN(4)
+    {
+        FILL(0xff)
+        PROVIDE(__start_data_RAM4 = .) ;
+        *(.ramfunc.$RAM4)
+        *(.ramfunc.$RamAHB16)
+        *(.data.$RAM4)
+        *(.data.$RamAHB16)
+        *(.data.$RAM4.*)
+        *(.data.$RamAHB16.*)
+        . = ALIGN(4) ;
+        PROVIDE(__end_data_RAM4 = .) ;
+     } > RamAHB16 AT>SPIFI
+    /* DATA section for RamAHB_ETB16 */
+
+    .data_RAM5 : ALIGN(4)
+    {
+        FILL(0xff)
+        PROVIDE(__start_data_RAM5 = .) ;
+        *(.ramfunc.$RAM5)
+        *(.ramfunc.$RamAHB_ETB16)
+        *(.data.$RAM5)
+        *(.data.$RamAHB_ETB16)
+        *(.data.$RAM5.*)
+        *(.data.$RamAHB_ETB16.*)
+        . = ALIGN(4) ;
+        PROVIDE(__end_data_RAM5 = .) ;
+     } > RamAHB_ETB16 AT>SPIFI
+    /* MAIN DATA SECTION */
+    .uninit_RESERVED (NOLOAD) :
+    {
+        . = ALIGN(4) ;
+        KEEP(*(.bss.$RESERVED*))
+       . = ALIGN(4) ;
+        _end_uninit_RESERVED = .;
+    } > RamLoc128
+
+    /* Main DATA section (RamLoc128) */
+    .data : ALIGN(4)
+    {
+       FILL(0xff)
+       _data = . ;
+       *(vtable)
+       *(.ramfunc*)
+       *(.data*)
+       . = ALIGN(4) ;
+       _edata = . ;
+    } > RamLoc128 AT>SPIFI
+
+    /* BSS section for RamLoc72 */
+    .bss_RAM2 :
+    {
+       . = ALIGN(4) ;
+       PROVIDE(__start_bss_RAM2 = .) ;
+       *(.bss.$RAM2)
+       *(.bss.$RamLoc72)
+       *(.bss.$RAM2.*)
+       *(.bss.$RamLoc72.*)
+       . = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
+       PROVIDE(__end_bss_RAM2 = .) ;
+    } > RamLoc72
+
+    /* BSS section for RamAHB32 */
+    .bss_RAM3 :
+    {
+       . = ALIGN(4) ;
+       PROVIDE(__start_bss_RAM3 = .) ;
+       *(.bss.$RAM3)
+       *(.bss.$RamAHB32)
+       *(.bss.$RAM3.*)
+       *(.bss.$RamAHB32.*)
+       . = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
+       PROVIDE(__end_bss_RAM3 = .) ;
+    } > RamAHB32
+
+    /* BSS section for RamAHB16 */
+    .bss_RAM4 :
+    {
+       . = ALIGN(4) ;
+       PROVIDE(__start_bss_RAM4 = .) ;
+       *(.bss.$RAM4)
+       *(.bss.$RamAHB16)
+       *(.bss.$RAM4.*)
+       *(.bss.$RamAHB16.*)
+       . = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
+       PROVIDE(__end_bss_RAM4 = .) ;
+    } > RamAHB16
+
+    /* BSS section for RamAHB_ETB16 */
+    .bss_RAM5 :
+    {
+       . = ALIGN(4) ;
+       PROVIDE(__start_bss_RAM5 = .) ;
+       *(.bss.$RAM5)
+       *(.bss.$RamAHB_ETB16)
+       *(.bss.$RAM5.*)
+       *(.bss.$RamAHB_ETB16.*)
+       . = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
+       PROVIDE(__end_bss_RAM5 = .) ;
+    } > RamAHB_ETB16
+
+    /* MAIN BSS SECTION */
+    .bss :
+    {
+        . = ALIGN(4) ;
+        _bss = .;
+        *(.bss*)
+        *(COMMON)
+        . = ALIGN(4) ;
+        _ebss = .;
+        PROVIDE(end = .);
+    } > RamLoc128
+
+    /* NOINIT section for RamLoc72 */
+    .noinit_RAM2 (NOLOAD) :
+    {
+       . = ALIGN(4) ;
+       *(.noinit.$RAM2)
+       *(.noinit.$RamLoc72)
+       *(.noinit.$RAM2.*)
+       *(.noinit.$RamLoc72.*)
+       . = ALIGN(4) ;
+    } > RamLoc72
+
+    /* NOINIT section for RamAHB32 */
+    .noinit_RAM3 (NOLOAD) :
+    {
+       . = ALIGN(4) ;
+       *(.noinit.$RAM3)
+       *(.noinit.$RamAHB32)
+       *(.noinit.$RAM3.*)
+       *(.noinit.$RamAHB32.*)
+       . = ALIGN(4) ;
+    } > RamAHB32
+
+    /* NOINIT section for RamAHB16 */
+    .noinit_RAM4 (NOLOAD) :
+    {
+       . = ALIGN(4) ;
+       *(.noinit.$RAM4)
+       *(.noinit.$RamAHB16)
+       *(.noinit.$RAM4.*)
+       *(.noinit.$RamAHB16.*)
+       . = ALIGN(4) ;
+    } > RamAHB16
+
+    /* NOINIT section for RamAHB_ETB16 */
+    .noinit_RAM5 (NOLOAD) :
+    {
+       . = ALIGN(4) ;
+       *(.noinit.$RAM5)
+       *(.noinit.$RamAHB_ETB16)
+       *(.noinit.$RAM5.*)
+       *(.noinit.$RamAHB_ETB16.*)
+       . = ALIGN(4) ;
+    } > RamAHB_ETB16
+
+    /* DEFAULT NOINIT SECTION */
+    .noinit (NOLOAD):
+    {
+         . = ALIGN(4) ;
+        _noinit = .;
+        *(.noinit*)
+         . = ALIGN(4) ;
+        _end_noinit = .;
+    } > RamLoc128
+    PROVIDE(_pvHeapStart = DEFINED(__user_heap_base) ? __user_heap_base : .);
+    PROVIDE(_vStackTop = DEFINED(__user_stack_top) ? __user_stack_top : __top_RamLoc128 - 0);
+
+    /* ## Create checksum value (used in startup) ## */
+    PROVIDE(__valid_user_code_checksum = 0 - 
+                                         (_vStackTop 
+                                         + (ResetISR + 1) 
+                                         + (NMI_Handler + 1) 
+                                         + (HardFault_Handler + 1) 
+                                         + (( DEFINED(MemManage_Handler) ? MemManage_Handler : 0 ) + 1)   /* MemManage_Handler may not be defined */
+                                         + (( DEFINED(BusFault_Handler) ? BusFault_Handler : 0 ) + 1)     /* BusFault_Handler may not be defined */
+                                         + (( DEFINED(UsageFault_Handler) ? UsageFault_Handler : 0 ) + 1) /* UsageFault_Handler may not be defined */
+                                         ) );
+
+    /* Provide basic symbols giving location and size of main text
+     * block, including initial values of RW data sections. Note that
+     * these will need extending to give a complete picture with
+     * complex images (e.g multiple Flash banks).
+     */
+    _image_start = LOADADDR(.text);
+    _image_end = LOADADDR(.data) + SIZEOF(.data);
+    _image_size = _image_end - _image_start;
+}
\ No newline at end of file
diff --git a/hw/bsp/stm32f070rbnucleo/board.mk b/hw/bsp/stm32f070rbnucleo/board.mk
new file mode 100644
index 000000000..b53aac5bb
--- /dev/null
+++ b/hw/bsp/stm32f070rbnucleo/board.mk
@@ -0,0 +1,51 @@
+CFLAGS += \
+	-DHSE_VALUE=8000000 \
+	-DSTM32F070xB \
+	-mthumb \
+	-mabi=aapcs-linux \
+	-mcpu=cortex-m0 \
+	-mfloat-abi=soft \
+	-nostdlib -nostartfiles \
+	-DCFG_EXAMPLE_MSC_READONLY \
+	-DCFG_TUSB_MCU=OPT_MCU_STM32F0
+
+ST_HAL_DRIVER = hw/mcu/st/st_driver/STM32F0xx_HAL_Driver
+ST_CMSIS = hw/mcu/st/st_driver/CMSIS/Device/ST/STM32F0xx
+
+# All source paths should be relative to the top level.
+LD_FILE = hw/bsp/stm32f070rbnucleo/stm32F070rbtx_flash.ld
+
+SRC_C += \
+	$(ST_CMSIS)/Source/Templates/system_stm32f0xx.c \
+	$(ST_HAL_DRIVER)/Src/stm32f0xx_hal.c \
+	$(ST_HAL_DRIVER)/Src/stm32f0xx_hal_cortex.c \
+	$(ST_HAL_DRIVER)/Src/stm32f0xx_hal_rcc.c \
+	$(ST_HAL_DRIVER)/Src/stm32f0xx_hal_rcc_ex.c \
+	$(ST_HAL_DRIVER)/Src/stm32f0xx_hal_gpio.c
+
+SRC_S += \
+	$(ST_CMSIS)/Source/Templates/gcc/startup_stm32f070xb.s
+
+INC += \
+	$(TOP)/hw/mcu/st/st_driver/CMSIS/Include \
+	$(TOP)/$(ST_CMSIS)/Include \
+	$(TOP)/$(ST_HAL_DRIVER)/Inc \
+	$(TOP)/hw/bsp/$(BOARD)
+
+# For TinyUSB port source
+VENDOR = st
+CHIP_FAMILY = stm32_fsdev
+
+# For freeRTOS port source
+FREERTOS_PORT = ARM_CM0
+
+# For flash-jlink target
+JLINK_DEVICE = stm32f070rb
+JLINK_IF = swd
+
+# Path to STM32 Cube Programmer CLI, should be added into system path 
+STM32Prog = STM32_Programmer_CLI
+
+# flash target using on-board stlink
+flash: $(BUILD)/$(BOARD)-firmware.elf
+	$(STM32Prog) --connect port=swd --write $< --go
diff --git a/hw/bsp/stm32f070rbnucleo/stm32F070rbtx_flash.ld b/hw/bsp/stm32f070rbnucleo/stm32F070rbtx_flash.ld
new file mode 100644
index 000000000..7ae8e5960
--- /dev/null
+++ b/hw/bsp/stm32f070rbnucleo/stm32F070rbtx_flash.ld
@@ -0,0 +1,200 @@
+/*
+******************************************************************************
+**
+**  File        : LinkerScript.ld
+**
+**  Author		: Auto-generated by STM32CubeIDE
+**
+**  Abstract    : Linker script for STM32F070RBTx Device from STM32F0 series
+**                      128Kbytes FLASH
+**                      16Kbytes RAM
+**
+**                Set heap size, stack size and stack location according
+**                to application requirements.
+**
+**                Set memory bank area and size if external memory is used.
+**
+**  Target      : STMicroelectronics STM32
+**
+**  Distribution: The file is distributed as is without any warranty
+**                of any kind.
+**
+*****************************************************************************
+** @attention
+**
+** <h2><center>&copy; COPYRIGHT(c) 2019 STMicroelectronics</center></h2>
+**
+** Redistribution and use in source and binary forms, with or without modification,
+** are permitted provided that the following conditions are met:
+**   1. Redistributions of source code must retain the above copyright notice,
+**      this list of conditions and the following disclaimer.
+**   2. Redistributions in binary form must reproduce the above copyright notice,
+**      this list of conditions and the following disclaimer in the documentation
+**      and/or other materials provided with the distribution.
+**   3. Neither the name of STMicroelectronics nor the names of its contributors
+**      may be used to endorse or promote products derived from this software
+**      without specific prior written permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+** AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+** DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+** OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x20004000;	/* end of "RAM" Ram type memory */
+
+_Min_Heap_Size = 0x400;	/* required amount of heap  */
+_Min_Stack_Size = 0x600;	/* required amount of stack */
+
+/* Memories definition */
+MEMORY
+{
+    RAM	(xrw)	: ORIGIN = 0x20000000,	LENGTH = 16K
+    FLASH	(rx)	: ORIGIN = 0x8000000,	LENGTH = 128K
+}
+
+/* Sections */
+SECTIONS
+{
+  /* The startup code into "FLASH" Rom type memory */
+  .isr_vector :
+  {
+    . = ALIGN(4);
+    KEEP(*(.isr_vector)) /* Startup code */
+    . = ALIGN(4);
+  } >FLASH
+
+  /* The program code and other data into "FLASH" Rom type memory */
+  .text :
+  {
+    . = ALIGN(4);
+    *(.text)           /* .text sections (code) */
+    *(.text*)          /* .text* sections (code) */
+    *(.glue_7)         /* glue arm to thumb code */
+    *(.glue_7t)        /* glue thumb to arm code */
+    *(.eh_frame)
+
+    KEEP (*(.init))
+    KEEP (*(.fini))
+
+    . = ALIGN(4);
+    _etext = .;        /* define a global symbols at end of code */
+  } >FLASH
+
+  /* Constant data into "FLASH" Rom type memory */
+  .rodata :
+  {
+    . = ALIGN(4);
+    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
+    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
+    . = ALIGN(4);
+  } >FLASH
+
+  .ARM.extab   : { 
+  	. = ALIGN(4);
+  	*(.ARM.extab* .gnu.linkonce.armextab.*)
+  	. = ALIGN(4);
+  } >FLASH
+  
+  .ARM : {
+    . = ALIGN(4);
+    __exidx_start = .;
+    *(.ARM.exidx*)
+    __exidx_end = .;
+    . = ALIGN(4);
+  } >FLASH
+
+  .preinit_array     :
+  {
+    . = ALIGN(4);
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array*))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+    . = ALIGN(4);
+  } >FLASH
+  
+  .init_array :
+  {
+    . = ALIGN(4);
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array*))
+    PROVIDE_HIDDEN (__init_array_end = .);
+    . = ALIGN(4);
+  } >FLASH
+  
+  .fini_array :
+  {
+    . = ALIGN(4);
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT(.fini_array.*)))
+    KEEP (*(.fini_array*))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+    . = ALIGN(4);
+  } >FLASH
+
+  /* Used by the startup to initialize data */
+  _sidata = LOADADDR(.data);
+
+  /* Initialized data sections into "RAM" Ram type memory */
+  .data : 
+  {
+    . = ALIGN(4);
+    _sdata = .;        /* create a global symbol at data start */
+    *(.data)           /* .data sections */
+    *(.data*)          /* .data* sections */
+
+    . = ALIGN(4);
+    _edata = .;        /* define a global symbol at data end */
+    
+  } >RAM AT> FLASH
+  
+  /* Uninitialized data section into "RAM" Ram type memory */
+  . = ALIGN(4);
+  .bss :
+  {
+    /* This is used by the startup in order to initialize the .bss secion */
+    _sbss = .;         /* define a global symbol at bss start */
+    __bss_start__ = _sbss;
+    *(.bss)
+    *(.bss*)
+    *(COMMON)
+
+    . = ALIGN(4);
+    _ebss = .;         /* define a global symbol at bss end */
+    __bss_end__ = _ebss;
+  } >RAM
+
+  /* User_heap_stack section, used to check that there is enough "RAM" Ram  type memory left */
+  ._user_heap_stack :
+  {
+    . = ALIGN(8);
+    PROVIDE ( end = . );
+    PROVIDE ( _end = . );
+    . = . + _Min_Heap_Size;
+    . = . + _Min_Stack_Size;
+    . = ALIGN(8);
+  } >RAM
+
+  /* Remove information from the compiler libraries */
+  /DISCARD/ :
+  {
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
+  }
+
+  .ARM.attributes 0 : { *(.ARM.attributes) }
+}
diff --git a/hw/bsp/stm32f070rbnucleo/stm32f070rbnucleo.c b/hw/bsp/stm32f070rbnucleo/stm32f070rbnucleo.c
new file mode 100644
index 000000000..50f174b34
--- /dev/null
+++ b/hw/bsp/stm32f070rbnucleo/stm32f070rbnucleo.c
@@ -0,0 +1,152 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#include "../board.h"
+
+#include "stm32f0xx.h"
+#include "stm32f0xx_hal_conf.h"
+
+#define LED_PORT              GPIOC
+#define LED_PIN               GPIO_PIN_13
+#define LED_STATE_ON          1
+
+#define BUTTON_PORT           GPIOA
+#define BUTTON_PIN            GPIO_PIN_5
+#define BUTTON_STATE_ACTIVE   1
+
+void board_init(void)
+{
+  #if CFG_TUSB_OS  == OPT_OS_NONE
+  // 1ms tick timer
+  SysTick_Config(SystemCoreClock / 1000);
+  #endif
+
+  /* Configure the system clock to 48 MHz */
+  RCC_ClkInitTypeDef RCC_ClkInitStruct;
+  RCC_OscInitTypeDef RCC_OscInitStruct;
+  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
+
+  /* Enable HSE Oscillator and activate PLL with 8 MHz HSE as source */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+  RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL6;
+  RCC_OscInitStruct.PLL.PREDIV = RCC_PREDIV_DIV1;
+  HAL_RCC_OscConfig(&RCC_OscInitStruct);
+
+  /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
+     clocks dividers */
+  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_PCLK1;
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
+  (void) HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1);
+  
+  
+  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB;
+  PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_PLL;
+  (void)HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) ;
+  
+  // Notify runtime of frequency change.
+  SystemCoreClockUpdate();
+
+  // LED
+  __HAL_RCC_GPIOC_CLK_ENABLE();
+  GPIO_InitTypeDef  GPIO_InitStruct;
+  GPIO_InitStruct.Pin = LED_PIN;
+  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+  GPIO_InitStruct.Pull = GPIO_PULLUP;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
+  HAL_GPIO_Init(LED_PORT, &GPIO_InitStruct);
+
+  // Button
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+  GPIO_InitStruct.Pin = BUTTON_PIN;
+  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+  GPIO_InitStruct.Pull = GPIO_PULLDOWN;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
+  HAL_GPIO_Init(BUTTON_PORT, &GPIO_InitStruct);
+
+  // Start USB clock
+  __HAL_RCC_USB_CLK_ENABLE();
+}
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+void board_led_write(bool state)
+{
+  HAL_GPIO_WritePin(LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
+}
+
+uint32_t board_button_read(void)
+{
+  return BUTTON_STATE_ACTIVE == HAL_GPIO_ReadPin(BUTTON_PORT, BUTTON_PIN);
+}
+
+#if CFG_TUSB_OS  == OPT_OS_NONE
+volatile uint32_t system_ticks = 0;
+void SysTick_Handler (void)
+{
+  system_ticks++;
+}
+
+uint32_t board_millis(void)
+{
+  return system_ticks;
+}
+#endif
+
+void HardFault_Handler (void)
+{
+  asm("bkpt");
+}
+
+#ifdef  USE_FULL_ASSERT
+/**
+  * @brief  Reports the name of the source file and the source line number
+  *         where the assert_param error has occurred.
+  * @param  file: pointer to the source file name
+  * @param  line: assert_param error line source number
+  * @retval None
+  */
+void assert_failed(char *file, uint32_t line)
+{ 
+  /* USER CODE BEGIN 6 */
+  /* User can add his own implementation to report the file name and line number,
+     tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
+  /* USER CODE END 6 */
+}
+#endif /* USE_FULL_ASSERT */
+
+// Required by __libc_init_array in startup code if we are compiling using
+// -nostdlib/-nostartfiles.
+void _init(void)
+{
+
+}
diff --git a/hw/bsp/stm32f070rbnucleo/stm32f0xx_hal_conf.h b/hw/bsp/stm32f070rbnucleo/stm32f0xx_hal_conf.h
new file mode 100644
index 000000000..7e3721afc
--- /dev/null
+++ b/hw/bsp/stm32f070rbnucleo/stm32f0xx_hal_conf.h
@@ -0,0 +1,324 @@
+/**
+  ******************************************************************************
+  * @file    GPIO/GPIO_IOToggle/Inc/stm32f3xx_hal_conf.h
+  * @author  MCD Application Team
+  * @brief   HAL configuration file.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F0xx_HAL_CONF_H
+#define __STM32F0xx_HAL_CONF_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+
+/* ########################## Module Selection ############################## */
+/**
+  * @brief This is the list of modules to be used in the HAL driver 
+  */
+#define HAL_MODULE_ENABLED  
+/*#define HAL_ADC_MODULE_ENABLED   */
+/*#define HAL_CRYP_MODULE_ENABLED   */
+/*#define HAL_CAN_MODULE_ENABLED   */
+/*#define HAL_CEC_MODULE_ENABLED   */
+/*#define HAL_COMP_MODULE_ENABLED   */
+/*#define HAL_CRC_MODULE_ENABLED   */
+/*#define HAL_CRYP_MODULE_ENABLED   */
+/*#define HAL_TSC_MODULE_ENABLED   */
+/*#define HAL_DAC_MODULE_ENABLED   */
+/*#define HAL_I2S_MODULE_ENABLED   */
+/*#define HAL_IWDG_MODULE_ENABLED   */
+/*#define HAL_LCD_MODULE_ENABLED   */
+/*#define HAL_LPTIM_MODULE_ENABLED   */
+/*#define HAL_RNG_MODULE_ENABLED   */
+/*#define HAL_RTC_MODULE_ENABLED   */
+/*#define HAL_SPI_MODULE_ENABLED   */
+/*#define HAL_TIM_MODULE_ENABLED   */
+/*#define HAL_UART_MODULE_ENABLED   */
+#define HAL_USART_MODULE_ENABLED   
+/*#define HAL_IRDA_MODULE_ENABLED   */
+/*#define HAL_SMARTCARD_MODULE_ENABLED   */
+/*#define HAL_SMBUS_MODULE_ENABLED   */
+/*#define HAL_WWDG_MODULE_ENABLED   */
+#define HAL_PCD_MODULE_ENABLED
+/*#define HAL_EXTI_MODULE_ENABLED   */
+#define HAL_CORTEX_MODULE_ENABLED
+#define HAL_DMA_MODULE_ENABLED
+#define HAL_FLASH_MODULE_ENABLED
+#define HAL_GPIO_MODULE_ENABLED
+#define HAL_PWR_MODULE_ENABLED
+#define HAL_RCC_MODULE_ENABLED
+#define HAL_I2C_MODULE_ENABLED
+
+/* ########################## HSE/HSI Values adaptation ##################### */
+/**
+  * @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
+  *        This value is used by the RCC HAL module to compute the system frequency
+  *        (when HSE is used as system clock source, directly or through the PLL).  
+  */
+#if !defined  (HSE_VALUE) 
+  #define HSE_VALUE    ((uint32_t)8000000) /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
+
+/**
+  * @brief In the following line adjust the External High Speed oscillator (HSE) Startup 
+  *        Timeout value 
+  */
+#if !defined  (HSE_STARTUP_TIMEOUT)
+  #define HSE_STARTUP_TIMEOUT    ((uint32_t)100)   /*!< Time out for HSE start up, in ms */
+#endif /* HSE_STARTUP_TIMEOUT */
+
+/**
+  * @brief Internal High Speed oscillator (HSI) value.
+  *        This value is used by the RCC HAL module to compute the system frequency
+  *        (when HSI is used as system clock source, directly or through the PLL). 
+  */
+#if !defined  (HSI_VALUE)
+  #define HSI_VALUE    ((uint32_t)8000000) /*!< Value of the Internal oscillator in Hz*/
+#endif /* HSI_VALUE */
+
+/**
+  * @brief In the following line adjust the Internal High Speed oscillator (HSI) Startup 
+  *        Timeout value 
+  */
+#if !defined  (HSI_STARTUP_TIMEOUT) 
+ #define HSI_STARTUP_TIMEOUT   ((uint32_t)5000) /*!< Time out for HSI start up */
+#endif /* HSI_STARTUP_TIMEOUT */  
+
+/**
+  * @brief Internal High Speed oscillator for ADC (HSI14) value.
+  */
+#if !defined  (HSI14_VALUE) 
+#define HSI14_VALUE ((uint32_t)14000000) /*!< Value of the Internal High Speed oscillator for ADC in Hz.
+                                             The real value may vary depending on the variations
+                                             in voltage and temperature.  */
+#endif /* HSI14_VALUE */
+
+/**
+  * @brief Internal High Speed oscillator for USB (HSI48) value.
+  */
+#if !defined  (HSI48_VALUE) 
+#define HSI48_VALUE ((uint32_t)48000000) /*!< Value of the Internal High Speed oscillator for USB in Hz.
+                                             The real value may vary depending on the variations
+                                             in voltage and temperature.  */
+#endif /* HSI48_VALUE */
+
+/**
+  * @brief Internal Low Speed oscillator (LSI) value.
+  */
+#if !defined  (LSI_VALUE) 
+ #define LSI_VALUE  ((uint32_t)40000)    
+#endif /* LSI_VALUE */                      /*!< Value of the Internal Low Speed oscillator in Hz
+                                             The real value may vary depending on the variations
+                                             in voltage and temperature.  */
+/**
+  * @brief External Low Speed oscillator (LSI) value.
+  */
+#if !defined  (LSE_VALUE)
+ #define LSE_VALUE  ((uint32_t)32768)    /*!< Value of the External Low Speed oscillator in Hz */
+#endif /* LSE_VALUE */     
+
+#if !defined  (LSE_STARTUP_TIMEOUT)
+  #define LSE_STARTUP_TIMEOUT    ((uint32_t)5000)   /*!< Time out for LSE start up, in ms */
+#endif /* LSE_STARTUP_TIMEOUT */
+
+/* Tip: To avoid modifying this file each time you need to use different HSE,
+   ===  you can define the HSE value in your toolchain compiler preprocessor. */
+
+/* ########################### System Configuration ######################### */
+/**
+  * @brief This is the HAL system configuration section
+  */     
+#define  VDD_VALUE                    ((uint32_t)3300) /*!< Value of VDD in mv */           
+#define  TICK_INT_PRIORITY            ((uint32_t)0)    /*!< tick interrupt priority (lowest by default)  */            
+                                                                              /*  Warning: Must be set to higher priority for HAL_Delay()  */
+                                                                              /*  and HAL_GetTick() usage under interrupt context          */
+#define  USE_RTOS                     0     
+#define  PREFETCH_ENABLE              1              
+#define  INSTRUCTION_CACHE_ENABLE     0
+#define  DATA_CACHE_ENABLE            0
+/* ########################## Assert Selection ############################## */
+/**
+  * @brief Uncomment the line below to expanse the "assert_param" macro in the 
+  *        HAL drivers code
+  */
+ #define USE_FULL_ASSERT   1U 
+
+/* ################## SPI peripheral configuration ########################## */
+
+/* CRC FEATURE: Use to activate CRC feature inside HAL SPI Driver
+* Activated: CRC code is present inside driver
+* Deactivated: CRC code cleaned from driver
+*/
+
+#define USE_SPI_CRC                     0U
+
+/* Includes ------------------------------------------------------------------*/
+/**
+  * @brief Include module's header file 
+  */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+ #include "stm32f0xx_hal_rcc.h"
+#endif /* HAL_RCC_MODULE_ENABLED */
+
+#ifdef HAL_EXTI_MODULE_ENABLED
+ #include "stm32f0xx_hal_exti.h"
+#endif /* HAL_EXTI_MODULE_ENABLED */
+
+#ifdef HAL_GPIO_MODULE_ENABLED
+ #include "stm32f0xx_hal_gpio.h"
+#endif /* HAL_GPIO_MODULE_ENABLED */
+
+#ifdef HAL_DMA_MODULE_ENABLED
+  #include "stm32f0xx_hal_dma.h"
+#endif /* HAL_DMA_MODULE_ENABLED */
+
+#ifdef HAL_CORTEX_MODULE_ENABLED
+ #include "stm32f0xx_hal_cortex.h"
+#endif /* HAL_CORTEX_MODULE_ENABLED */
+
+#ifdef HAL_ADC_MODULE_ENABLED
+ #include "stm32f0xx_hal_adc.h"
+#endif /* HAL_ADC_MODULE_ENABLED */
+
+#ifdef HAL_CAN_MODULE_ENABLED
+ #include "stm32f0xx_hal_can.h"
+#endif /* HAL_CAN_MODULE_ENABLED */
+
+#ifdef HAL_CEC_MODULE_ENABLED
+ #include "stm32f0xx_hal_cec.h"
+#endif /* HAL_CEC_MODULE_ENABLED */
+
+#ifdef HAL_COMP_MODULE_ENABLED
+ #include "stm32f0xx_hal_comp.h"
+#endif /* HAL_COMP_MODULE_ENABLED */
+
+#ifdef HAL_CRC_MODULE_ENABLED
+ #include "stm32f0xx_hal_crc.h"
+#endif /* HAL_CRC_MODULE_ENABLED */
+
+#ifdef HAL_DAC_MODULE_ENABLED
+ #include "stm32f0xx_hal_dac.h"
+#endif /* HAL_DAC_MODULE_ENABLED */
+
+#ifdef HAL_FLASH_MODULE_ENABLED
+ #include "stm32f0xx_hal_flash.h"
+#endif /* HAL_FLASH_MODULE_ENABLED */
+
+#ifdef HAL_I2C_MODULE_ENABLED
+ #include "stm32f0xx_hal_i2c.h"
+#endif /* HAL_I2C_MODULE_ENABLED */
+
+#ifdef HAL_I2S_MODULE_ENABLED
+ #include "stm32f0xx_hal_i2s.h"
+#endif /* HAL_I2S_MODULE_ENABLED */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+ #include "stm32f0xx_hal_irda.h"
+#endif /* HAL_IRDA_MODULE_ENABLED */
+
+#ifdef HAL_IWDG_MODULE_ENABLED
+ #include "stm32f0xx_hal_iwdg.h"
+#endif /* HAL_IWDG_MODULE_ENABLED */
+
+#ifdef HAL_PCD_MODULE_ENABLED
+ #include "stm32f0xx_hal_pcd.h"
+#endif /* HAL_PCD_MODULE_ENABLED */
+
+#ifdef HAL_PWR_MODULE_ENABLED
+ #include "stm32f0xx_hal_pwr.h"
+#endif /* HAL_PWR_MODULE_ENABLED */
+
+#ifdef HAL_RTC_MODULE_ENABLED
+ #include "stm32f0xx_hal_rtc.h"
+#endif /* HAL_RTC_MODULE_ENABLED */
+
+#ifdef HAL_SMARTCARD_MODULE_ENABLED
+ #include "stm32f0xx_hal_smartcard.h"
+#endif /* HAL_SMARTCARD_MODULE_ENABLED */
+
+#ifdef HAL_SMBUS_MODULE_ENABLED
+ #include "stm32f0xx_hal_smbus.h"
+#endif /* HAL_SMBUS_MODULE_ENABLED */
+
+#ifdef HAL_SPI_MODULE_ENABLED
+ #include "stm32f0xx_hal_spi.h"
+#endif /* HAL_SPI_MODULE_ENABLED */
+
+#ifdef HAL_TIM_MODULE_ENABLED
+ #include "stm32f0xx_hal_tim.h"
+#endif /* HAL_TIM_MODULE_ENABLED */
+
+#ifdef HAL_TSC_MODULE_ENABLED
+ #include "stm32f0xx_hal_tsc.h"
+#endif /* HAL_TSC_MODULE_ENABLED */
+
+#ifdef HAL_UART_MODULE_ENABLED
+ #include "stm32f0xx_hal_uart.h"
+#endif /* HAL_UART_MODULE_ENABLED */
+
+#ifdef HAL_USART_MODULE_ENABLED
+ #include "stm32f0xx_hal_usart.h"
+#endif /* HAL_USART_MODULE_ENABLED */
+
+#ifdef HAL_WWDG_MODULE_ENABLED
+ #include "stm32f0xx_hal_wwdg.h"
+#endif /* HAL_WWDG_MODULE_ENABLED */
+
+/* Exported macro ------------------------------------------------------------*/
+#ifdef  USE_FULL_ASSERT
+/**
+  * @brief  The assert_param macro is used for function's parameters check.
+  * @param  expr: If expr is false, it calls assert_failed function
+  *         which reports the name of the source file and the source
+  *         line number of the call that failed. 
+  *         If expr is true, it returns no value.
+  * @retval None
+  */
+  #define assert_param(expr) ((expr) ? (void)0U : assert_failed((char *)__FILE__, __LINE__))
+/* Exported functions ------------------------------------------------------- */
+  void assert_failed(char* file, uint32_t line);
+#else
+  #define assert_param(expr) ((void)0U)
+#endif /* USE_FULL_ASSERT */    
+    
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F0xx_HAL_CONF_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/hw/bsp/stm32f072disco/STM32F072RBTx_FLASH.ld b/hw/bsp/stm32f072disco/STM32F072RBTx_FLASH.ld
new file mode 100644
index 000000000..8d31f6a00
--- /dev/null
+++ b/hw/bsp/stm32f072disco/STM32F072RBTx_FLASH.ld
@@ -0,0 +1,169 @@
+/*
+*****************************************************************************
+**
+
+**  File        : LinkerScript.ld
+**
+**  Abstract    : Linker script for STM32F072RBTx Device with
+**                128KByte FLASH, 16KByte RAM
+**
+**                Set heap size, stack size and stack location according
+**                to application requirements.
+**
+**                Set memory bank area and size if external memory is used.
+**
+**  Target      : STMicroelectronics STM32
+**
+**
+**  Distribution: The file is distributed as is, without any warranty
+**                of any kind.
+**
+**  (c)Copyright Ac6.
+**  You may use this file as-is or modify it according to the needs of your
+**  project. Distribution of this file (unmodified or modified) is not
+**  permitted. Ac6 permit registered System Workbench for MCU users the
+**  rights to distribute the assembled, compiled & linked contents of this
+**  file as part of an application binary file, provided that it is built
+**  using the System Workbench for MCU toolchain.
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x20004000;    /* end of RAM */
+/* Generate a link error if heap and stack don't fit into RAM */
+_Min_Heap_Size = 0x200;      /* required amount of heap  */
+_Min_Stack_Size = 0x400; /* required amount of stack */
+
+/* Specify the memory areas */
+MEMORY
+{
+FLASH (rx)      : ORIGIN = 0x8000000, LENGTH = 128K
+RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 16K
+}
+
+/* Define output sections */
+SECTIONS
+{
+  /* The startup code goes first into FLASH */
+  .isr_vector :
+  {
+    . = ALIGN(4);
+    KEEP(*(.isr_vector)) /* Startup code */
+    . = ALIGN(4);
+  } >FLASH
+
+  /* The program code and other data goes into FLASH */
+  .text :
+  {
+    . = ALIGN(4);
+    *(.text)           /* .text sections (code) */
+    *(.text*)          /* .text* sections (code) */
+    *(.glue_7)         /* glue arm to thumb code */
+    *(.glue_7t)        /* glue thumb to arm code */
+    *(.eh_frame)
+
+    KEEP (*(.init))
+    KEEP (*(.fini))
+
+    . = ALIGN(4);
+    _etext = .;        /* define a global symbols at end of code */
+  } >FLASH
+
+  /* Constant data goes into FLASH */
+  .rodata :
+  {
+    . = ALIGN(4);
+    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
+    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
+    . = ALIGN(4);
+  } >FLASH
+
+  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
+  .ARM : {
+    __exidx_start = .;
+    *(.ARM.exidx*)
+    __exidx_end = .;
+  } >FLASH
+
+  .preinit_array     :
+  {
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array*))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+  } >FLASH
+  .init_array :
+  {
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array*))
+    PROVIDE_HIDDEN (__init_array_end = .);
+  } >FLASH
+  .fini_array :
+  {
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT(.fini_array.*)))
+    KEEP (*(.fini_array*))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+  } >FLASH
+
+  /* used by the startup to initialize data */
+  _sidata = LOADADDR(.data);
+
+  /* Initialized data sections goes into RAM, load LMA copy after code */
+  .data : 
+  {
+    . = ALIGN(4);
+    _sdata = .;        /* create a global symbol at data start */
+    *(.data)           /* .data sections */
+    *(.data*)          /* .data* sections */
+
+    . = ALIGN(4);
+    _edata = .;        /* define a global symbol at data end */
+  } >RAM AT> FLASH
+
+  
+  /* Uninitialized data section */
+  . = ALIGN(4);
+  .bss :
+  {
+    /* This is used by the startup in order to initialize the .bss secion */
+    _sbss = .;         /* define a global symbol at bss start */
+    __bss_start__ = _sbss;
+    *(.bss)
+    *(.bss*)
+    *(COMMON)
+
+    . = ALIGN(4);
+    _ebss = .;         /* define a global symbol at bss end */
+    __bss_end__ = _ebss;
+  } >RAM
+
+  /* User_heap_stack section, used to check that there is enough RAM left */
+  ._user_heap_stack :
+  {
+    . = ALIGN(8);
+    PROVIDE ( end = . );
+    PROVIDE ( _end = . );
+    . = . + _Min_Heap_Size;
+    . = . + _Min_Stack_Size;
+    . = ALIGN(8);
+  } >RAM
+
+  
+
+  /* Remove information from the standard libraries */
+  /DISCARD/ :
+  {
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
+  }
+
+  .ARM.attributes 0 : { *(.ARM.attributes) }
+}
+
+
diff --git a/hw/bsp/stm32f072disco/board.mk b/hw/bsp/stm32f072disco/board.mk
new file mode 100644
index 000000000..0a58a5654
--- /dev/null
+++ b/hw/bsp/stm32f072disco/board.mk
@@ -0,0 +1,51 @@
+CFLAGS += \
+	-DHSE_VALUE=8000000 \
+	-DSTM32F072xB \
+	-mthumb \
+	-mabi=aapcs \
+	-mcpu=cortex-m0 \
+	-mfloat-abi=soft \
+	-nostdlib -nostartfiles \
+	-DCFG_EXAMPLE_MSC_READONLY \
+	-DCFG_TUSB_MCU=OPT_MCU_STM32F0
+
+ST_HAL_DRIVER = hw/mcu/st/st_driver/STM32F0xx_HAL_Driver
+ST_CMSIS = hw/mcu/st/st_driver/CMSIS/Device/ST/STM32F0xx
+
+# All source paths should be relative to the top level.
+LD_FILE = hw/bsp/$(BOARD)/STM32F072RBTx_FLASH.ld
+
+SRC_C += \
+	$(ST_CMSIS)/Source/Templates/system_stm32f0xx.c \
+	$(ST_HAL_DRIVER)/Src/stm32f0xx_hal.c \
+	$(ST_HAL_DRIVER)/Src/stm32f0xx_hal_cortex.c \
+	$(ST_HAL_DRIVER)/Src/stm32f0xx_hal_rcc.c \
+	$(ST_HAL_DRIVER)/Src/stm32f0xx_hal_rcc_ex.c \
+	$(ST_HAL_DRIVER)/Src/stm32f0xx_hal_gpio.c
+
+SRC_S += \
+	$(ST_CMSIS)/Source/Templates/gcc/startup_stm32f072xb.s
+
+INC += \
+	$(TOP)/hw/mcu/st/st_driver/CMSIS/Include \
+	$(TOP)/$(ST_CMSIS)/Include \
+	$(TOP)/$(ST_HAL_DRIVER)/Inc \
+	$(TOP)/hw/bsp/$(BOARD)
+
+# For TinyUSB port source
+VENDOR = st
+CHIP_FAMILY = stm32_fsdev
+
+# For freeRTOS port source
+FREERTOS_PORT = ARM_CM0
+
+# For flash-jlink target
+JLINK_DEVICE = stm32f072rb
+JLINK_IF = swd
+
+# Path to STM32 Cube Programmer CLI, should be added into system path 
+STM32Prog = STM32_Programmer_CLI
+
+# flash target using on-board stlink
+flash: $(BUILD)/$(BOARD)-firmware.elf
+	$(STM32Prog) --connect port=swd --write $< --go
diff --git a/hw/bsp/stm32f072disco/stm32f072disco.c b/hw/bsp/stm32f072disco/stm32f072disco.c
new file mode 100644
index 000000000..2faa00db9
--- /dev/null
+++ b/hw/bsp/stm32f072disco/stm32f072disco.c
@@ -0,0 +1,174 @@
+/* 
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#include "../board.h"
+
+#include "stm32f0xx.h"
+#include "stm32f0xx_hal_conf.h"
+
+#define LED_PORT              GPIOC
+#define LED_PIN               GPIO_PIN_6
+#define LED_STATE_ON          1
+
+#define BUTTON_PORT           GPIOA
+#define BUTTON_PIN            GPIO_PIN_0
+#define BUTTON_STATE_ACTIVE   1
+
+
+/**
+  * @brief  System Clock Configuration
+  *         The system Clock is configured as follow :
+  *            System Clock source            = PLL (HSI48)
+  *            SYSCLK(Hz)                     = 48000000
+  *            HCLK(Hz)                       = 48000000
+  *            AHB Prescaler                  = 1
+  *            APB1 Prescaler                 = 1
+  *            HSI Frequency(Hz)              = 48000000
+  *            PREDIV                         = 2
+  *            PLLMUL                         = 2
+  *            Flash Latency(WS)              = 1
+  * @param  None
+  * @retval None
+  */
+static void SystemClock_Config(void)
+{
+  RCC_ClkInitTypeDef RCC_ClkInitStruct;
+  RCC_OscInitTypeDef RCC_OscInitStruct;
+
+  /* Select HSI48 Oscillator as PLL source */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48;
+  RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI48;
+  RCC_OscInitStruct.PLL.PREDIV = RCC_PREDIV_DIV2;
+  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL2;
+  HAL_RCC_OscConfig(&RCC_OscInitStruct);
+
+  /* Select PLL as system clock source and configure the HCLK and PCLK1 clocks dividers */
+  RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1);
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
+  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1);
+}
+
+void board_init(void)
+{
+  #if CFG_TUSB_OS  == OPT_OS_NONE
+  // 1ms tick timer
+  SysTick_Config(SystemCoreClock / 1000);
+  #endif
+
+  SystemClock_Config();
+  
+  // Notify runtime of frequency change.
+  SystemCoreClockUpdate();
+
+  // LED
+  __HAL_RCC_GPIOC_CLK_ENABLE();
+  GPIO_InitTypeDef  GPIO_InitStruct;
+  GPIO_InitStruct.Pin = LED_PIN;
+  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+  GPIO_InitStruct.Pull = GPIO_PULLUP;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
+  HAL_GPIO_Init(LED_PORT, &GPIO_InitStruct);
+
+  // Button
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+  GPIO_InitStruct.Pin = BUTTON_PIN;
+  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+  GPIO_InitStruct.Pull = GPIO_PULLDOWN;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
+  HAL_GPIO_Init(BUTTON_PORT, &GPIO_InitStruct);
+
+  // USB Pins
+  // Configure USB DM and DP pins. This is optional, and maintained only for user guidance.
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+  GPIO_InitStruct.Pin = (GPIO_PIN_11 | GPIO_PIN_12);
+  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
+  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  // USB Clock enable
+  __HAL_RCC_USB_CLK_ENABLE();
+}
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+void board_led_write(bool state)
+{
+  HAL_GPIO_WritePin(LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON));
+}
+
+uint32_t board_button_read(void)
+{
+  return BUTTON_STATE_ACTIVE == HAL_GPIO_ReadPin(BUTTON_PORT, BUTTON_PIN);
+}
+
+#if CFG_TUSB_OS  == OPT_OS_NONE
+volatile uint32_t system_ticks = 0;
+void SysTick_Handler (void)
+{
+  system_ticks++;
+}
+
+uint32_t board_millis(void)
+{
+  return system_ticks;
+}
+#endif
+
+void HardFault_Handler (void)
+{
+  asm("bkpt");
+}
+
+#ifdef  USE_FULL_ASSERT
+/**
+  * @brief  Reports the name of the source file and the source line number
+  *         where the assert_param error has occurred.
+  * @param  file: pointer to the source file name
+  * @param  line: assert_param error line source number
+  * @retval None
+  */
+void assert_failed(char *file, uint32_t line)
+{ 
+  /* USER CODE BEGIN 6 */
+  /* User can add his own implementation to report the file name and line number,
+     tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
+  /* USER CODE END 6 */
+}
+#endif /* USE_FULL_ASSERT */
+
+// Required by __libc_init_array in startup code if we are compiling using
+// -nostdlib/-nostartfiles.
+void _init(void)
+{
+
+}
diff --git a/hw/bsp/stm32f072disco/stm32f0xx_hal_conf.h b/hw/bsp/stm32f072disco/stm32f0xx_hal_conf.h
new file mode 100644
index 000000000..7e3721afc
--- /dev/null
+++ b/hw/bsp/stm32f072disco/stm32f0xx_hal_conf.h
@@ -0,0 +1,324 @@
+/**
+  ******************************************************************************
+  * @file    GPIO/GPIO_IOToggle/Inc/stm32f3xx_hal_conf.h
+  * @author  MCD Application Team
+  * @brief   HAL configuration file.
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
+  *
+  * Redistribution and use in source and binary forms, with or without modification,
+  * are permitted provided that the following conditions are met:
+  *   1. Redistributions of source code must retain the above copyright notice,
+  *      this list of conditions and the following disclaimer.
+  *   2. Redistributions in binary form must reproduce the above copyright notice,
+  *      this list of conditions and the following disclaimer in the documentation
+  *      and/or other materials provided with the distribution.
+  *   3. Neither the name of STMicroelectronics nor the names of its contributors
+  *      may be used to endorse or promote products derived from this software
+  *      without specific prior written permission.
+  *
+  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F0xx_HAL_CONF_H
+#define __STM32F0xx_HAL_CONF_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+
+/* ########################## Module Selection ############################## */
+/**
+  * @brief This is the list of modules to be used in the HAL driver 
+  */
+#define HAL_MODULE_ENABLED  
+/*#define HAL_ADC_MODULE_ENABLED   */
+/*#define HAL_CRYP_MODULE_ENABLED   */
+/*#define HAL_CAN_MODULE_ENABLED   */
+/*#define HAL_CEC_MODULE_ENABLED   */
+/*#define HAL_COMP_MODULE_ENABLED   */
+/*#define HAL_CRC_MODULE_ENABLED   */
+/*#define HAL_CRYP_MODULE_ENABLED   */
+/*#define HAL_TSC_MODULE_ENABLED   */
+/*#define HAL_DAC_MODULE_ENABLED   */
+/*#define HAL_I2S_MODULE_ENABLED   */
+/*#define HAL_IWDG_MODULE_ENABLED   */
+/*#define HAL_LCD_MODULE_ENABLED   */
+/*#define HAL_LPTIM_MODULE_ENABLED   */
+/*#define HAL_RNG_MODULE_ENABLED   */
+/*#define HAL_RTC_MODULE_ENABLED   */
+/*#define HAL_SPI_MODULE_ENABLED   */
+/*#define HAL_TIM_MODULE_ENABLED   */
+/*#define HAL_UART_MODULE_ENABLED   */
+#define HAL_USART_MODULE_ENABLED   
+/*#define HAL_IRDA_MODULE_ENABLED   */
+/*#define HAL_SMARTCARD_MODULE_ENABLED   */
+/*#define HAL_SMBUS_MODULE_ENABLED   */
+/*#define HAL_WWDG_MODULE_ENABLED   */
+#define HAL_PCD_MODULE_ENABLED
+/*#define HAL_EXTI_MODULE_ENABLED   */
+#define HAL_CORTEX_MODULE_ENABLED
+#define HAL_DMA_MODULE_ENABLED
+#define HAL_FLASH_MODULE_ENABLED
+#define HAL_GPIO_MODULE_ENABLED
+#define HAL_PWR_MODULE_ENABLED
+#define HAL_RCC_MODULE_ENABLED
+#define HAL_I2C_MODULE_ENABLED
+
+/* ########################## HSE/HSI Values adaptation ##################### */
+/**
+  * @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
+  *        This value is used by the RCC HAL module to compute the system frequency
+  *        (when HSE is used as system clock source, directly or through the PLL).  
+  */
+#if !defined  (HSE_VALUE) 
+  #define HSE_VALUE    ((uint32_t)8000000) /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
+
+/**
+  * @brief In the following line adjust the External High Speed oscillator (HSE) Startup 
+  *        Timeout value 
+  */
+#if !defined  (HSE_STARTUP_TIMEOUT)
+  #define HSE_STARTUP_TIMEOUT    ((uint32_t)100)   /*!< Time out for HSE start up, in ms */
+#endif /* HSE_STARTUP_TIMEOUT */
+
+/**
+  * @brief Internal High Speed oscillator (HSI) value.
+  *        This value is used by the RCC HAL module to compute the system frequency
+  *        (when HSI is used as system clock source, directly or through the PLL). 
+  */
+#if !defined  (HSI_VALUE)
+  #define HSI_VALUE    ((uint32_t)8000000) /*!< Value of the Internal oscillator in Hz*/
+#endif /* HSI_VALUE */
+
+/**
+  * @brief In the following line adjust the Internal High Speed oscillator (HSI) Startup 
+  *        Timeout value 
+  */
+#if !defined  (HSI_STARTUP_TIMEOUT) 
+ #define HSI_STARTUP_TIMEOUT   ((uint32_t)5000) /*!< Time out for HSI start up */
+#endif /* HSI_STARTUP_TIMEOUT */  
+
+/**
+  * @brief Internal High Speed oscillator for ADC (HSI14) value.
+  */
+#if !defined  (HSI14_VALUE) 
+#define HSI14_VALUE ((uint32_t)14000000) /*!< Value of the Internal High Speed oscillator for ADC in Hz.
+                                             The real value may vary depending on the variations
+                                             in voltage and temperature.  */
+#endif /* HSI14_VALUE */
+
+/**
+  * @brief Internal High Speed oscillator for USB (HSI48) value.
+  */
+#if !defined  (HSI48_VALUE) 
+#define HSI48_VALUE ((uint32_t)48000000) /*!< Value of the Internal High Speed oscillator for USB in Hz.
+                                             The real value may vary depending on the variations
+                                             in voltage and temperature.  */
+#endif /* HSI48_VALUE */
+
+/**
+  * @brief Internal Low Speed oscillator (LSI) value.
+  */
+#if !defined  (LSI_VALUE) 
+ #define LSI_VALUE  ((uint32_t)40000)    
+#endif /* LSI_VALUE */                      /*!< Value of the Internal Low Speed oscillator in Hz
+                                             The real value may vary depending on the variations
+                                             in voltage and temperature.  */
+/**
+  * @brief External Low Speed oscillator (LSI) value.
+  */
+#if !defined  (LSE_VALUE)
+ #define LSE_VALUE  ((uint32_t)32768)    /*!< Value of the External Low Speed oscillator in Hz */
+#endif /* LSE_VALUE */     
+
+#if !defined  (LSE_STARTUP_TIMEOUT)
+  #define LSE_STARTUP_TIMEOUT    ((uint32_t)5000)   /*!< Time out for LSE start up, in ms */
+#endif /* LSE_STARTUP_TIMEOUT */
+
+/* Tip: To avoid modifying this file each time you need to use different HSE,
+   ===  you can define the HSE value in your toolchain compiler preprocessor. */
+
+/* ########################### System Configuration ######################### */
+/**
+  * @brief This is the HAL system configuration section
+  */     
+#define  VDD_VALUE                    ((uint32_t)3300) /*!< Value of VDD in mv */           
+#define  TICK_INT_PRIORITY            ((uint32_t)0)    /*!< tick interrupt priority (lowest by default)  */            
+                                                                              /*  Warning: Must be set to higher priority for HAL_Delay()  */
+                                                                              /*  and HAL_GetTick() usage under interrupt context          */
+#define  USE_RTOS                     0     
+#define  PREFETCH_ENABLE              1              
+#define  INSTRUCTION_CACHE_ENABLE     0
+#define  DATA_CACHE_ENABLE            0
+/* ########################## Assert Selection ############################## */
+/**
+  * @brief Uncomment the line below to expanse the "assert_param" macro in the 
+  *        HAL drivers code
+  */
+ #define USE_FULL_ASSERT   1U 
+
+/* ################## SPI peripheral configuration ########################## */
+
+/* CRC FEATURE: Use to activate CRC feature inside HAL SPI Driver
+* Activated: CRC code is present inside driver
+* Deactivated: CRC code cleaned from driver
+*/
+
+#define USE_SPI_CRC                     0U
+
+/* Includes ------------------------------------------------------------------*/
+/**
+  * @brief Include module's header file 
+  */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+ #include "stm32f0xx_hal_rcc.h"
+#endif /* HAL_RCC_MODULE_ENABLED */
+
+#ifdef HAL_EXTI_MODULE_ENABLED
+ #include "stm32f0xx_hal_exti.h"
+#endif /* HAL_EXTI_MODULE_ENABLED */
+
+#ifdef HAL_GPIO_MODULE_ENABLED
+ #include "stm32f0xx_hal_gpio.h"
+#endif /* HAL_GPIO_MODULE_ENABLED */
+
+#ifdef HAL_DMA_MODULE_ENABLED
+  #include "stm32f0xx_hal_dma.h"
+#endif /* HAL_DMA_MODULE_ENABLED */
+
+#ifdef HAL_CORTEX_MODULE_ENABLED
+ #include "stm32f0xx_hal_cortex.h"
+#endif /* HAL_CORTEX_MODULE_ENABLED */
+
+#ifdef HAL_ADC_MODULE_ENABLED
+ #include "stm32f0xx_hal_adc.h"
+#endif /* HAL_ADC_MODULE_ENABLED */
+
+#ifdef HAL_CAN_MODULE_ENABLED
+ #include "stm32f0xx_hal_can.h"
+#endif /* HAL_CAN_MODULE_ENABLED */
+
+#ifdef HAL_CEC_MODULE_ENABLED
+ #include "stm32f0xx_hal_cec.h"
+#endif /* HAL_CEC_MODULE_ENABLED */
+
+#ifdef HAL_COMP_MODULE_ENABLED
+ #include "stm32f0xx_hal_comp.h"
+#endif /* HAL_COMP_MODULE_ENABLED */
+
+#ifdef HAL_CRC_MODULE_ENABLED
+ #include "stm32f0xx_hal_crc.h"
+#endif /* HAL_CRC_MODULE_ENABLED */
+
+#ifdef HAL_DAC_MODULE_ENABLED
+ #include "stm32f0xx_hal_dac.h"
+#endif /* HAL_DAC_MODULE_ENABLED */
+
+#ifdef HAL_FLASH_MODULE_ENABLED
+ #include "stm32f0xx_hal_flash.h"
+#endif /* HAL_FLASH_MODULE_ENABLED */
+
+#ifdef HAL_I2C_MODULE_ENABLED
+ #include "stm32f0xx_hal_i2c.h"
+#endif /* HAL_I2C_MODULE_ENABLED */
+
+#ifdef HAL_I2S_MODULE_ENABLED
+ #include "stm32f0xx_hal_i2s.h"
+#endif /* HAL_I2S_MODULE_ENABLED */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+ #include "stm32f0xx_hal_irda.h"
+#endif /* HAL_IRDA_MODULE_ENABLED */
+
+#ifdef HAL_IWDG_MODULE_ENABLED
+ #include "stm32f0xx_hal_iwdg.h"
+#endif /* HAL_IWDG_MODULE_ENABLED */
+
+#ifdef HAL_PCD_MODULE_ENABLED
+ #include "stm32f0xx_hal_pcd.h"
+#endif /* HAL_PCD_MODULE_ENABLED */
+
+#ifdef HAL_PWR_MODULE_ENABLED
+ #include "stm32f0xx_hal_pwr.h"
+#endif /* HAL_PWR_MODULE_ENABLED */
+
+#ifdef HAL_RTC_MODULE_ENABLED
+ #include "stm32f0xx_hal_rtc.h"
+#endif /* HAL_RTC_MODULE_ENABLED */
+
+#ifdef HAL_SMARTCARD_MODULE_ENABLED
+ #include "stm32f0xx_hal_smartcard.h"
+#endif /* HAL_SMARTCARD_MODULE_ENABLED */
+
+#ifdef HAL_SMBUS_MODULE_ENABLED
+ #include "stm32f0xx_hal_smbus.h"
+#endif /* HAL_SMBUS_MODULE_ENABLED */
+
+#ifdef HAL_SPI_MODULE_ENABLED
+ #include "stm32f0xx_hal_spi.h"
+#endif /* HAL_SPI_MODULE_ENABLED */
+
+#ifdef HAL_TIM_MODULE_ENABLED
+ #include "stm32f0xx_hal_tim.h"
+#endif /* HAL_TIM_MODULE_ENABLED */
+
+#ifdef HAL_TSC_MODULE_ENABLED
+ #include "stm32f0xx_hal_tsc.h"
+#endif /* HAL_TSC_MODULE_ENABLED */
+
+#ifdef HAL_UART_MODULE_ENABLED
+ #include "stm32f0xx_hal_uart.h"
+#endif /* HAL_UART_MODULE_ENABLED */
+
+#ifdef HAL_USART_MODULE_ENABLED
+ #include "stm32f0xx_hal_usart.h"
+#endif /* HAL_USART_MODULE_ENABLED */
+
+#ifdef HAL_WWDG_MODULE_ENABLED
+ #include "stm32f0xx_hal_wwdg.h"
+#endif /* HAL_WWDG_MODULE_ENABLED */
+
+/* Exported macro ------------------------------------------------------------*/
+#ifdef  USE_FULL_ASSERT
+/**
+  * @brief  The assert_param macro is used for function's parameters check.
+  * @param  expr: If expr is false, it calls assert_failed function
+  *         which reports the name of the source file and the source
+  *         line number of the call that failed. 
+  *         If expr is true, it returns no value.
+  * @retval None
+  */
+  #define assert_param(expr) ((expr) ? (void)0U : assert_failed((char *)__FILE__, __LINE__))
+/* Exported functions ------------------------------------------------------- */
+  void assert_failed(char* file, uint32_t line);
+#else
+  #define assert_param(expr) ((void)0U)
+#endif /* USE_FULL_ASSERT */    
+    
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F0xx_HAL_CONF_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/hw/bsp/stm32f303disco/board.mk b/hw/bsp/stm32f303disco/board.mk
index d1421f26d..a214b1f14 100644
--- a/hw/bsp/stm32f303disco/board.mk
+++ b/hw/bsp/stm32f303disco/board.mk
@@ -2,7 +2,7 @@ CFLAGS += \
 	-DHSE_VALUE=8000000 \
 	-DSTM32F303xC \
 	-mthumb \
-	-mabi=aapcs-linux \
+	-mabi=aapcs \
 	-mcpu=cortex-m4 \
 	-mfloat-abi=hard \
 	-mfpu=fpv4-sp-d16 \
@@ -20,6 +20,7 @@ SRC_C += \
 	$(ST_HAL_DRIVER)/Src/stm32f3xx_hal.c \
 	$(ST_HAL_DRIVER)/Src/stm32f3xx_hal_cortex.c \
 	$(ST_HAL_DRIVER)/Src/stm32f3xx_hal_rcc.c \
+	$(ST_HAL_DRIVER)/Src/stm32f3xx_hal_rcc_ex.c \
 	$(ST_HAL_DRIVER)/Src/stm32f3xx_hal_gpio.c
 
 SRC_S += \
@@ -33,7 +34,7 @@ INC += \
 
 # For TinyUSB port source
 VENDOR = st
-CHIP_FAMILY = stm32f3
+CHIP_FAMILY = stm32_fsdev
 
 # For freeRTOS port source
 FREERTOS_PORT = ARM_CM4F
diff --git a/hw/bsp/stm32f303disco/stm32f303disco.c b/hw/bsp/stm32f303disco/stm32f303disco.c
index 45ba7a4f9..ae369ed5b 100644
--- a/hw/bsp/stm32f303disco/stm32f303disco.c
+++ b/hw/bsp/stm32f303disco/stm32f303disco.c
@@ -37,16 +37,28 @@
 #define BUTTON_PIN            GPIO_PIN_0
 #define BUTTON_STATE_ACTIVE   1
 
-void board_init(void)
-{
-  #if CFG_TUSB_OS  == OPT_OS_NONE
-  // 1ms tick timer
-  SysTick_Config(SystemCoreClock / 1000);
-  #endif
 
-  /* Configure the system clock to 72 MHz */
+/**
+  * @brief  System Clock Configuration
+  *         The system Clock is configured as follow :
+  *            System Clock source            = PLL (HSE)
+  *            SYSCLK(Hz)                     = 72000000
+  *            HCLK(Hz)                       = 72000000
+  *            AHB Prescaler                  = 1
+  *            APB1 Prescaler                 = 2
+  *            APB2 Prescaler                 = 1
+  *            HSE Frequency(Hz)              = 8000000
+  *            HSE PREDIV                     = 1
+  *            PLLMUL                         = RCC_PLL_MUL9 (9)
+  *            Flash Latency(WS)              = 2
+  * @param  None
+  * @retval None
+  */
+static void SystemClock_Config(void)
+{
   RCC_ClkInitTypeDef RCC_ClkInitStruct;
   RCC_OscInitTypeDef RCC_OscInitStruct;
+  RCC_PeriphCLKInitTypeDef  RCC_PeriphClkInit;
 
   /* Enable HSE Oscillator and activate PLL with HSE as source */
   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
@@ -57,14 +69,32 @@ void board_init(void)
   RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
   HAL_RCC_OscConfig(&RCC_OscInitStruct);
 
+  /* Configures the USB clock */
+  HAL_RCCEx_GetPeriphCLKConfig(&RCC_PeriphClkInit);
+  RCC_PeriphClkInit.USBClockSelection = RCC_USBCLKSOURCE_PLL_DIV1_5;
+  HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphClkInit);
+
   /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
-     clocks dividers */
+  clocks dividers */
   RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
   RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
-  (void) HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
+  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
+
+  /* Enable Power Clock */
+  __HAL_RCC_PWR_CLK_ENABLE();
+}
+
+void board_init(void)
+{
+  #if CFG_TUSB_OS  == OPT_OS_NONE
+  // 1ms tick timer
+  SysTick_Config(SystemCoreClock / 1000);
+  #endif
+
+  SystemClock_Config();
 
   // Notify runtime of frequency change.
   SystemCoreClockUpdate();
@@ -86,23 +116,17 @@ void board_init(void)
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
   HAL_GPIO_Init(BUTTON_PORT, &GPIO_InitStruct);
 
-#if 0
-  RCC->AHB2ENR |= RCC_AHB2ENR_OTGFSEN;
-
-  // USB Pin Init
-  // PA9- VUSB, PA10- ID, PA11- DM, PA12- DP
-  // PC0- Power on
-  RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN;
-  GPIOA->MODER |= GPIO_MODER_MODE9_1 | GPIO_MODER_MODE10_1 | \
-    GPIO_MODER_MODE11_1 | GPIO_MODER_MODE12_1;
-  GPIOA->AFR[1] |= (10 << GPIO_AFRH_AFSEL9_Pos) | \
-    (10 << GPIO_AFRH_AFSEL10_Pos) | (10 << GPIO_AFRH_AFSEL11_Pos) | \
-    (10 << GPIO_AFRH_AFSEL12_Pos);
+  /* Configure USB DM and DP pins */
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+  GPIO_InitStruct.Pin = (GPIO_PIN_11 | GPIO_PIN_12);
+  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
+  GPIO_InitStruct.Alternate = GPIO_AF14_USB;
+  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
-  // Pullup required on ID, despite the manual claiming there's an
-  // internal pullup already (page 1245, Rev 17)
-  GPIOA->PUPDR |= GPIO_PUPDR_PUPD10_0;
-#endif
+  // Enable USB clock
+  __HAL_RCC_USB_CLK_ENABLE();
 }
 
 //--------------------------------------------------------------------+
diff --git a/hw/bsp/stm32f407disco/stm32f407disco.c b/hw/bsp/stm32f407disco/stm32f407disco.c
index 2eb5148d2..16cec3e9a 100644
--- a/hw/bsp/stm32f407disco/stm32f407disco.c
+++ b/hw/bsp/stm32f407disco/stm32f407disco.c
@@ -106,14 +106,10 @@ void board_init(void)
   // Notify runtime of frequency change.
   SystemCoreClockUpdate();
 
-  __HAL_RCC_GPIOA_CLK_ENABLE(); // button, USB D+/D-
-  __HAL_RCC_GPIOD_CLK_ENABLE(); // LED
-
   GPIO_InitTypeDef  GPIO_InitStruct;
 
   // LED
   __HAL_RCC_GPIOD_CLK_ENABLE();
-
   GPIO_InitStruct.Pin = LED_PIN;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_PULLUP;
@@ -123,20 +119,17 @@ void board_init(void)
   board_led_write(false);
 
   // Button
+  __HAL_RCC_GPIOA_CLK_ENABLE();
   GPIO_InitStruct.Pin = BUTTON_PIN;
   GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
   GPIO_InitStruct.Pull = GPIO_PULLDOWN;
   GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
   HAL_GPIO_Init(BUTTON_PORT, &GPIO_InitStruct);
 
-  // Enable USB OTG clock
-  __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
-
   // USB Pin Init
   // PA9- VUSB, PA10- ID, PA11- DM, PA12- DP
-  __HAL_RCC_GPIOA_CLK_ENABLE();
-
   /* Configure DM DP Pins */
+  __HAL_RCC_GPIOA_CLK_ENABLE();
   GPIO_InitStruct.Pin = GPIO_PIN_11 | GPIO_PIN_12;
   GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
   GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
@@ -157,6 +150,9 @@ void board_init(void)
   GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
   GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  // Enable USB OTG clock
+  __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
 }
 
 //--------------------------------------------------------------------+
diff --git a/hw/bsp/stm32f411disco/stm32f411disco.c b/hw/bsp/stm32f411disco/stm32f411disco.c
index 541416c22..ce8753432 100644
--- a/hw/bsp/stm32f411disco/stm32f411disco.c
+++ b/hw/bsp/stm32f411disco/stm32f411disco.c
@@ -106,12 +106,10 @@ void board_init(void)
   // Notify runtime of frequency change.
   SystemCoreClockUpdate();
 
-  __HAL_RCC_GPIOA_CLK_ENABLE(); // button, USB D+/D-
-  __HAL_RCC_GPIOD_CLK_ENABLE(); // LED
-
   GPIO_InitTypeDef  GPIO_InitStruct;
 
   // LED
+  __HAL_RCC_GPIOD_CLK_ENABLE();
   GPIO_InitStruct.Pin = LED_PIN;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_PULLUP;
@@ -121,6 +119,7 @@ void board_init(void)
   board_led_write(false);
 
   // Button
+  __HAL_RCC_GPIOA_CLK_ENABLE();
   GPIO_InitStruct.Pin = BUTTON_PIN;
   GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
   GPIO_InitStruct.Pull = GPIO_PULLDOWN;
@@ -132,6 +131,7 @@ void board_init(void)
 
   /* Configure USB FS GPIOs */
   /* Configure USB D+ D- Pins */
+  __HAL_RCC_GPIOA_CLK_ENABLE();
   GPIO_InitStruct.Pin = GPIO_PIN_11 | GPIO_PIN_12;
   GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
   GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
diff --git a/hw/bsp/stm32f412disco/stm32f412disco.c b/hw/bsp/stm32f412disco/stm32f412disco.c
index a4a687f95..0a3ae7365 100644
--- a/hw/bsp/stm32f412disco/stm32f412disco.c
+++ b/hw/bsp/stm32f412disco/stm32f412disco.c
@@ -126,13 +126,10 @@ void board_init(void)
   //NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY );
 #endif
 
-  __HAL_RCC_GPIOA_CLK_ENABLE(); // button, USB D+/D-
-  __HAL_RCC_GPIOE_CLK_ENABLE(); // LED
-  __HAL_RCC_GPIOG_CLK_ENABLE(); // USB power switch IO pin
-
   GPIO_InitTypeDef  GPIO_InitStruct;
 
   // LED
+  __HAL_RCC_GPIOE_CLK_ENABLE();
   GPIO_InitStruct.Pin = LED_PIN;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
   GPIO_InitStruct.Pull = GPIO_PULLUP;
@@ -142,6 +139,7 @@ void board_init(void)
   board_led_write(false);
 
   // Button
+  __HAL_RCC_GPIOA_CLK_ENABLE();
   GPIO_InitStruct.Pin = BUTTON_PIN;
   GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
   GPIO_InitStruct.Pull = GPIO_PULLDOWN;
@@ -150,6 +148,7 @@ void board_init(void)
 
   /* Configure USB FS GPIOs */
   /* Configure USB D+ D- Pins */
+  __HAL_RCC_GPIOA_CLK_ENABLE();
   GPIO_InitStruct.Pin = GPIO_PIN_11 | GPIO_PIN_12;
   GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
   GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
@@ -172,6 +171,7 @@ void board_init(void)
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
   /* Configure POWER_SWITCH IO pin */
+  __HAL_RCC_GPIOG_CLK_ENABLE();
   GPIO_InitStruct.Pin = GPIO_PIN_8;
   GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_OD;
   GPIO_InitStruct.Pull = GPIO_NOPULL;
diff --git a/hw/bsp/stm32f767nucleo/STM32F767ZITx_FLASH.ld b/hw/bsp/stm32f767nucleo/STM32F767ZITx_FLASH.ld
new file mode 100644
index 000000000..0b6d5a494
--- /dev/null
+++ b/hw/bsp/stm32f767nucleo/STM32F767ZITx_FLASH.ld
@@ -0,0 +1,169 @@
+/*
+*****************************************************************************
+**
+
+**  File        : LinkerScript.ld
+**
+**  Abstract    : Linker script for STM32F767ZITx Device with
+**                2048KByte FLASH, 512KByte RAM
+**
+**                Set heap size, stack size and stack location according
+**                to application requirements.
+**
+**                Set memory bank area and size if external memory is used.
+**
+**  Target      : STMicroelectronics STM32
+**
+**
+**  Distribution: The file is distributed as is, without any warranty
+**                of any kind.
+**
+**  (c)Copyright Ac6.
+**  You may use this file as-is or modify it according to the needs of your
+**  project. Distribution of this file (unmodified or modified) is not
+**  permitted. Ac6 permit registered System Workbench for MCU users the
+**  rights to distribute the assembled, compiled & linked contents of this
+**  file as part of an application binary file, provided that it is built
+**  using the System Workbench for MCU toolchain.
+**
+*****************************************************************************
+*/
+
+/* Entry Point */
+ENTRY(Reset_Handler)
+
+/* Highest address of the user mode stack */
+_estack = 0x20080000;    /* end of RAM */
+/* Generate a link error if heap and stack don't fit into RAM */
+_Min_Heap_Size = 0x200;      /* required amount of heap  */
+_Min_Stack_Size = 0x400; /* required amount of stack */
+
+/* Specify the memory areas */
+MEMORY
+{
+FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 2048K
+RAM (xrw)      : ORIGIN = 0x20000000, LENGTH = 512K
+}
+
+/* Define output sections */
+SECTIONS
+{
+  /* The startup code goes first into FLASH */
+  .isr_vector :
+  {
+    . = ALIGN(4);
+    KEEP(*(.isr_vector)) /* Startup code */
+    . = ALIGN(4);
+  } >FLASH
+
+  /* The program code and other data goes into FLASH */
+  .text :
+  {
+    . = ALIGN(4);
+    *(.text)           /* .text sections (code) */
+    *(.text*)          /* .text* sections (code) */
+    *(.glue_7)         /* glue arm to thumb code */
+    *(.glue_7t)        /* glue thumb to arm code */
+    *(.eh_frame)
+
+    KEEP (*(.init))
+    KEEP (*(.fini))
+
+    . = ALIGN(4);
+    _etext = .;        /* define a global symbols at end of code */
+  } >FLASH
+
+  /* Constant data goes into FLASH */
+  .rodata :
+  {
+    . = ALIGN(4);
+    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
+    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
+    . = ALIGN(4);
+  } >FLASH
+
+  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
+  .ARM : {
+    __exidx_start = .;
+    *(.ARM.exidx*)
+    __exidx_end = .;
+  } >FLASH
+
+  .preinit_array     :
+  {
+    PROVIDE_HIDDEN (__preinit_array_start = .);
+    KEEP (*(.preinit_array*))
+    PROVIDE_HIDDEN (__preinit_array_end = .);
+  } >FLASH
+  .init_array :
+  {
+    PROVIDE_HIDDEN (__init_array_start = .);
+    KEEP (*(SORT(.init_array.*)))
+    KEEP (*(.init_array*))
+    PROVIDE_HIDDEN (__init_array_end = .);
+  } >FLASH
+  .fini_array :
+  {
+    PROVIDE_HIDDEN (__fini_array_start = .);
+    KEEP (*(SORT(.fini_array.*)))
+    KEEP (*(.fini_array*))
+    PROVIDE_HIDDEN (__fini_array_end = .);
+  } >FLASH
+
+  /* used by the startup to initialize data */
+  _sidata = LOADADDR(.data);
+
+  /* Initialized data sections goes into RAM, load LMA copy after code */
+  .data : 
+  {
+    . = ALIGN(4);
+    _sdata = .;        /* create a global symbol at data start */
+    *(.data)           /* .data sections */
+    *(.data*)          /* .data* sections */
+
+    . = ALIGN(4);
+    _edata = .;        /* define a global symbol at data end */
+  } >RAM AT> FLASH
+
+  
+  /* Uninitialized data section */
+  . = ALIGN(4);
+  .bss :
+  {
+    /* This is used by the startup in order to initialize the .bss secion */
+    _sbss = .;         /* define a global symbol at bss start */
+    __bss_start__ = _sbss;
+    *(.bss)
+    *(.bss*)
+    *(COMMON)
+
+    . = ALIGN(4);
+    _ebss = .;         /* define a global symbol at bss end */
+    __bss_end__ = _ebss;
+  } >RAM
+
+  /* User_heap_stack section, used to check that there is enough RAM left */
+  ._user_heap_stack :
+  {
+    . = ALIGN(8);
+    PROVIDE ( end = . );
+    PROVIDE ( _end = . );
+    . = . + _Min_Heap_Size;
+    . = . + _Min_Stack_Size;
+    . = ALIGN(8);
+  } >RAM
+
+  
+
+  /* Remove information from the standard libraries */
+  /DISCARD/ :
+  {
+    libc.a ( * )
+    libm.a ( * )
+    libgcc.a ( * )
+  }
+
+  .ARM.attributes 0 : { *(.ARM.attributes) }
+}
+
+
diff --git a/hw/bsp/stm32f767nucleo/board.mk b/hw/bsp/stm32f767nucleo/board.mk
new file mode 100644
index 000000000..62a31d894
--- /dev/null
+++ b/hw/bsp/stm32f767nucleo/board.mk
@@ -0,0 +1,48 @@
+CFLAGS += \
+  -DHSE_VALUE=8000000 \
+  -DSTM32F767xx \
+  -mthumb \
+  -mabi=aapcs \
+  -mcpu=cortex-m7 \
+  -mfloat-abi=hard \
+  -mfpu=fpv5-d16 \
+  -nostdlib -nostartfiles \
+  -DCFG_TUSB_MCU=OPT_MCU_STM32F7
+
+# The -Wno-error=sign-compare line is required due to STM32F7xx_HAL_Driver.
+CFLAGS += -Wno-error=shadow 
+
+ST_HAL_DRIVER = hw/mcu/st/st_driver/STM32F7xx_HAL_Driver
+ST_CMSIS = hw/mcu/st/st_driver/CMSIS/Device/ST/STM32F7xx
+
+# All source paths should be relative to the top level.
+LD_FILE = hw/bsp/$(BOARD)/STM32F767ZITx_FLASH.ld
+
+SRC_C += \
+	$(ST_CMSIS)/Source/Templates/system_stm32f7xx.c \
+	$(ST_HAL_DRIVER)/Src/stm32f7xx_hal.c \
+	$(ST_HAL_DRIVER)/Src/stm32f7xx_hal_cortex.c \
+	$(ST_HAL_DRIVER)/Src/stm32f7xx_hal_rcc.c \
+	$(ST_HAL_DRIVER)/Src/stm32f7xx_hal_rcc_ex.c \
+	$(ST_HAL_DRIVER)/Src/stm32f7xx_hal_gpio.c \
+	$(ST_HAL_DRIVER)/Src/stm32f7xx_hal_pwr_ex.c
+
+SRC_S += \
+	$(ST_CMSIS)/Source/Templates/gcc/startup_stm32f767xx.s
+
+INC += \
+	$(TOP)/hw/mcu/st/st_driver/CMSIS/Include \
+	$(TOP)/$(ST_CMSIS)/Include \
+	$(TOP)/$(ST_HAL_DRIVER)/Inc \
+	$(TOP)/hw/bsp/$(BOARD)
+
+# For TinyUSB port source
+VENDOR = st
+CHIP_FAMILY = synopsys
+
+# Path to STM32 Cube Programmer CLI, should be added into system path
+STM32Prog = STM32_Programmer_CLI
+
+# flash target using on-board stlink
+flash: $(BUILD)/$(BOARD)-firmware.elf
+	$(STM32Prog) --connect port=swd --write $< --go
diff --git a/hw/bsp/stm32f767nucleo/stm32f767nucleo.c b/hw/bsp/stm32f767nucleo/stm32f767nucleo.c
new file mode 100644
index 000000000..5ac2ddb72
--- /dev/null
+++ b/hw/bsp/stm32f767nucleo/stm32f767nucleo.c
@@ -0,0 +1,209 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2019 William D. Jones ([email protected]),
+ * Ha Thach (tinyusb.org)
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * This file is part of the TinyUSB stack.
+ */
+
+#include "../board.h"
+
+#include "stm32f7xx.h"
+#include "stm32f7xx_hal_conf.h"
+
+#define LED_PORT              GPIOB
+#define LED_PIN               GPIO_PIN_14
+#define LED_STATE_ON          1
+
+#define BUTTON_PORT           GPIOC
+#define BUTTON_PIN            GPIO_PIN_13
+#define BUTTON_STATE_ACTIVE   1
+
+/**
+  * @brief  System Clock Configuration
+  *         The system Clock is configured as follow :
+  *            System Clock source            = PLL (HSE)
+  *            SYSCLK(Hz)                     = 216000000
+  *            HCLK(Hz)                       = 216000000
+  *            AHB Prescaler                  = 1
+  *            APB1 Prescaler                 = 4
+  *            APB2 Prescaler                 = 2
+  *            HSE Frequency(Hz)              = 8000000
+  *            PLL_M                          = 8
+  *            PLL_N                          = 432
+  *            PLL_P                          = 2
+  *            PLL_Q                          = 9
+  *            PLL_R                          = 7
+  *            VDD(V)                         = 3.3
+  *            Main regulator output voltage  = Scale1 mode
+  *            Flash Latency(WS)              = 7
+  *         The USB clock configuration from PLLSAI:
+  *            PLLSAIP                        = 8
+  *            PLLSAIN                        = 384
+  *            PLLSAIQ                        = 7
+  * @param  None
+  * @retval None
+  */
+void SystemClock_Config(void)
+{
+  RCC_ClkInitTypeDef RCC_ClkInitStruct;
+  RCC_OscInitTypeDef RCC_OscInitStruct;
+
+  /* Enable Power Control clock */
+  __HAL_RCC_PWR_CLK_ENABLE();
+
+  /* The voltage scaling allows optimizing the power consumption when the device is
+     clocked below the maximum system frequency, to update the voltage scaling value
+     regarding system frequency refer to product datasheet.  */
+  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
+
+  /* Enable HSE Oscillator and activate PLL with HSE as source */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+  RCC_OscInitStruct.PLL.PLLM = 8;
+  RCC_OscInitStruct.PLL.PLLN = 432;
+  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
+  RCC_OscInitStruct.PLL.PLLQ = 9;
+  RCC_OscInitStruct.PLL.PLLR = 7;
+  HAL_RCC_OscConfig(&RCC_OscInitStruct);
+
+  /* Activate the OverDrive to reach the 216 MHz Frequency */
+  HAL_PWREx_EnableOverDrive();
+
+  /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 clocks dividers */
+  RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
+  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
+
+  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_7);
+}
+
+void board_init(void)
+{
+  #if CFG_TUSB_OS  == OPT_OS_NONE
+    // 1ms tick timer
+    SysTick_Config(SystemCoreClock / 1000);
+  #endif
+
+  SystemClock_Config();
+
+  SystemCoreClockUpdate();
+
+  GPIO_InitTypeDef  GPIO_InitStruct;
+
+  // LED
+  __HAL_RCC_GPIOB_CLK_ENABLE();
+  GPIO_InitStruct.Pin = LED_PIN;
+  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+  GPIO_InitStruct.Pull = GPIO_PULLUP;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
+  HAL_GPIO_Init(LED_PORT, &GPIO_InitStruct);
+
+  // Button
+  __HAL_RCC_GPIOC_CLK_ENABLE();
+  GPIO_InitStruct.Pin = BUTTON_PIN;
+  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
+  HAL_GPIO_Init(BUTTON_PORT, &GPIO_InitStruct);
+
+  /* Configure USB FS GPIOs */
+  /* Configure DM DP Pins */
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+  GPIO_InitStruct.Pin = (GPIO_PIN_11 | GPIO_PIN_12);
+  GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
+  GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
+  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  /* Configure VBUS Pin */
+  GPIO_InitStruct.Pin = GPIO_PIN_9;
+  GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  /* Configure ID pin */
+  GPIO_InitStruct.Pin = GPIO_PIN_10;
+  GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
+  GPIO_InitStruct.Pull = GPIO_PULLUP;
+  GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS;
+  HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  /* Enable USB FS Clocks */
+  __HAL_RCC_USB_OTG_FS_CLK_ENABLE();
+
+}
+
+//--------------------------------------------------------------------+
+// Board porting API
+//--------------------------------------------------------------------+
+
+void board_led_write(bool state)
+{
+  HAL_GPIO_WritePin(LED_PORT, LED_PIN, state);
+}
+
+uint32_t board_button_read(void)
+{
+  return HAL_GPIO_ReadPin(BUTTON_PORT, BUTTON_PIN);
+}
+
+int board_uart_read(uint8_t* buf, int len)
+{
+  return 0;
+}
+
+int board_uart_write(void const * buf, int len)
+{
+  return 0;
+}
+
+
+#if CFG_TUSB_OS  == OPT_OS_NONE
+volatile uint32_t system_ticks = 0;
+void SysTick_Handler (void)
+{
+  system_ticks++;
+}
+
+uint32_t board_millis(void)
+{
+  return system_ticks;
+}
+#endif
+
+void HardFault_Handler (void)
+{
+  asm("bkpt");
+}
+
+// Required by __libc_init_array in startup code if we are compiling using
+// -nostdlib/-nostartfiles.
+void _init(void)
+{
+
+}
diff --git a/hw/bsp/stm32f767nucleo/stm32f7xx_hal_conf.h b/hw/bsp/stm32f767nucleo/stm32f7xx_hal_conf.h
new file mode 100644
index 000000000..44093d69c
--- /dev/null
+++ b/hw/bsp/stm32f767nucleo/stm32f7xx_hal_conf.h
@@ -0,0 +1,472 @@
+/**
+  ******************************************************************************
+  * @file    stm32f7xx_hal_conf.h
+  * @author  MCD Application Team
+  * @brief   HAL configuration file. 
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F7xx_HAL_CONF_H
+#define __STM32F7xx_HAL_CONF_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+
+/* ########################## Module Selection ############################## */
+/**
+  * @brief This is the list of modules to be used in the HAL driver 
+  */
+#define HAL_MODULE_ENABLED  
+/* #define HAL_ADC_MODULE_ENABLED   */
+/* #define HAL_CAN_MODULE_ENABLED */
+/* #define HAL_CAN_LEGACY_MODULE_ENABLED */
+/* #define HAL_CEC_MODULE_ENABLED   */
+/* #define HAL_CRC_MODULE_ENABLED   */
+/* #define HAL_CRYP_MODULE_ENABLED   */
+/* #define HAL_DAC_MODULE_ENABLED   */
+/* #define HAL_DCMI_MODULE_ENABLED  */
+/* #define HAL_DMA_MODULE_ENABLED */
+/* #define HAL_DMA2D_MODULE_ENABLED  */
+/* #define HAL_ETH_MODULE_ENABLED  */
+#define HAL_FLASH_MODULE_ENABLED 
+/* #define HAL_NAND_MODULE_ENABLED */
+/* #define HAL_NOR_MODULE_ENABLED */
+/* #define HAL_SRAM_MODULE_ENABLED */
+/* #define HAL_SDRAM_MODULE_ENABLED */
+/* #define HAL_HASH_MODULE_ENABLED   */
+#define HAL_GPIO_MODULE_ENABLED
+/* #define HAL_I2C_MODULE_ENABLED */
+/* #define HAL_I2S_MODULE_ENABLED    */
+/* #define HAL_IWDG_MODULE_ENABLED  */
+/* #define HAL_LPTIM_MODULE_ENABLED */
+/* #define HAL_LTDC_MODULE_ENABLED  */
+#define HAL_PWR_MODULE_ENABLED
+/* #define HAL_QSPI_MODULE_ENABLED    */
+#define HAL_RCC_MODULE_ENABLED 
+/* #define HAL_RNG_MODULE_ENABLED    */
+/* #define HAL_RTC_MODULE_ENABLED */
+/* #define HAL_SAI_MODULE_ENABLED    */
+/* #define HAL_SD_MODULE_ENABLED   */
+/* #define HAL_SPDIFRX_MODULE_ENABLED */
+/* #define HAL_SPI_MODULE_ENABLED    */
+/* #define HAL_TIM_MODULE_ENABLED    */
+/* #define HAL_UART_MODULE_ENABLED  */
+/* #define HAL_USART_MODULE_ENABLED  */
+/* #define HAL_IRDA_MODULE_ENABLED  */
+/* #define HAL_SMARTCARD_MODULE_ENABLED  */
+/* #define HAL_WWDG_MODULE_ENABLED   */
+#define HAL_CORTEX_MODULE_ENABLED
+/* #define HAL_PCD_MODULE_ENABLED */
+/* #define HAL_HCD_MODULE_ENABLED */
+/* #define HAL_DFSDM_MODULE_ENABLED */
+/* #define HAL_DSI_MODULE_ENABLED */
+/* #define HAL_JPEG_MODULE_ENABLED */
+/* #define HAL_MDIOS_MODULE_ENABLED */
+
+
+/* ########################## HSE/HSI Values adaptation ##################### */
+/**
+  * @brief Adjust the value of External High Speed oscillator (HSE) used in your application.
+  *        This value is used by the RCC HAL module to compute the system frequency
+  *        (when HSE is used as system clock source, directly or through the PLL).  
+  */
+#if !defined  (HSE_VALUE) 
+  #define HSE_VALUE    ((uint32_t)8000000U) /*!< Value of the External oscillator in Hz */
+#endif /* HSE_VALUE */
+
+#if !defined  (HSE_STARTUP_TIMEOUT)
+  #define HSE_STARTUP_TIMEOUT    ((uint32_t)100U)   /*!< Time out for HSE start up, in ms */
+#endif /* HSE_STARTUP_TIMEOUT */
+
+/**
+  * @brief Internal High Speed oscillator (HSI) value.
+  *        This value is used by the RCC HAL module to compute the system frequency
+  *        (when HSI is used as system clock source, directly or through the PLL). 
+  */
+#if !defined  (HSI_VALUE)
+  #define HSI_VALUE    ((uint32_t)16000000U) /*!< Value of the Internal oscillator in Hz*/
+#endif /* HSI_VALUE */
+
+/**
+  * @brief Internal Low Speed oscillator (LSI) value.
+  */
+#if !defined  (LSI_VALUE) 
+ #define LSI_VALUE  ((uint32_t)32000U)       /*!< LSI Typical Value in Hz*/
+#endif /* LSI_VALUE */                      /*!< Value of the Internal Low Speed oscillator in Hz
+                                             The real value may vary depending on the variations
+                                             in voltage and temperature.  */
+/**
+  * @brief External Low Speed oscillator (LSE) value.
+  */
+#if !defined  (LSE_VALUE)
+ #define LSE_VALUE  ((uint32_t)32768U)    /*!< Value of the External Low Speed oscillator in Hz */
+#endif /* LSE_VALUE */
+
+#if !defined  (LSE_STARTUP_TIMEOUT)
+  #define LSE_STARTUP_TIMEOUT    ((uint32_t)5000U)   /*!< Time out for LSE start up, in ms */
+#endif /* LSE_STARTUP_TIMEOUT */
+
+/**
+  * @brief External clock source for I2S peripheral
+  *        This value is used by the I2S HAL module to compute the I2S clock source 
+  *        frequency, this source is inserted directly through I2S_CKIN pad. 
+  */
+#if !defined  (EXTERNAL_CLOCK_VALUE)
+  #define EXTERNAL_CLOCK_VALUE    ((uint32_t)12288000U) /*!< Value of the Internal oscillator in Hz*/
+#endif /* EXTERNAL_CLOCK_VALUE */
+
+/* Tip: To avoid modifying this file each time you need to use different HSE,
+   ===  you can define the HSE value in your toolchain compiler preprocessor. */
+
+/* ########################### System Configuration ######################### */
+/**
+  * @brief This is the HAL system configuration section
+  */     
+#define  VDD_VALUE                    ((uint32_t)3300U) /*!< Value of VDD in mv */
+#define  TICK_INT_PRIORITY            ((uint32_t)0x0FU) /*!< tick interrupt priority */
+#define  USE_RTOS                     0U
+#define  PREFETCH_ENABLE              1U
+#define  ART_ACCLERATOR_ENABLE        1U /* To enable instruction cache and prefetch */
+
+#define  USE_HAL_ADC_REGISTER_CALLBACKS         0U /* ADC register callback disabled       */
+#define  USE_HAL_CAN_REGISTER_CALLBACKS         0U /* CAN register callback disabled       */
+#define  USE_HAL_CEC_REGISTER_CALLBACKS         0U /* CEC register callback disabled       */
+#define  USE_HAL_CRYP_REGISTER_CALLBACKS        0U /* CRYP register callback disabled      */
+#define  USE_HAL_DAC_REGISTER_CALLBACKS         0U /* DAC register callback disabled       */
+#define  USE_HAL_DCMI_REGISTER_CALLBACKS        0U /* DCMI register callback disabled      */
+#define  USE_HAL_DFSDM_REGISTER_CALLBACKS       0U /* DFSDM register callback disabled     */
+#define  USE_HAL_DMA2D_REGISTER_CALLBACKS       0U /* DMA2D register callback disabled     */
+#define  USE_HAL_DSI_REGISTER_CALLBACKS         0U /* DSI register callback disabled       */
+#define  USE_HAL_ETH_REGISTER_CALLBACKS         0U /* ETH register callback disabled       */
+#define  USE_HAL_HASH_REGISTER_CALLBACKS        0U /* HASH register callback disabled      */
+#define  USE_HAL_HCD_REGISTER_CALLBACKS         0U /* HCD register callback disabled       */
+#define  USE_HAL_I2C_REGISTER_CALLBACKS         0U /* I2C register callback disabled       */
+#define  USE_HAL_I2S_REGISTER_CALLBACKS         0U /* I2S register callback disabled       */
+#define  USE_HAL_IRDA_REGISTER_CALLBACKS        0U /* IRDA register callback disabled      */
+#define  USE_HAL_JPEG_REGISTER_CALLBACKS        0U /* JPEG register callback disabled      */
+#define  USE_HAL_LPTIM_REGISTER_CALLBACKS       0U /* LPTIM register callback disabled     */
+#define  USE_HAL_LTDC_REGISTER_CALLBACKS        0U /* LTDC register callback disabled      */
+#define  USE_HAL_MDIOS_REGISTER_CALLBACKS       0U /* MDIOS register callback disabled     */
+#define  USE_HAL_MMC_REGISTER_CALLBACKS         0U /* MMC register callback disabled       */
+#define  USE_HAL_NAND_REGISTER_CALLBACKS        0U /* NAND register callback disabled      */
+#define  USE_HAL_NOR_REGISTER_CALLBACKS         0U /* NOR register callback disabled       */
+#define  USE_HAL_PCD_REGISTER_CALLBACKS         0U /* PCD register callback disabled       */
+#define  USE_HAL_QSPI_REGISTER_CALLBACKS        0U /* QSPI register callback disabled      */
+#define  USE_HAL_RNG_REGISTER_CALLBACKS         0U /* RNG register callback disabled       */
+#define  USE_HAL_RTC_REGISTER_CALLBACKS         0U /* RTC register callback disabled       */
+#define  USE_HAL_SAI_REGISTER_CALLBACKS         0U /* SAI register callback disabled       */
+#define  USE_HAL_SD_REGISTER_CALLBACKS          0U /* SD register callback disabled        */
+#define  USE_HAL_SMARTCARD_REGISTER_CALLBACKS   0U /* SMARTCARD register callback disabled */
+#define  USE_HAL_SDRAM_REGISTER_CALLBACKS       0U /* SDRAM register callback disabled     */
+#define  USE_HAL_SRAM_REGISTER_CALLBACKS        0U /* SRAM register callback disabled      */
+#define  USE_HAL_SPDIFRX_REGISTER_CALLBACKS     0U /* SPDIFRX register callback disabled   */
+#define  USE_HAL_SMBUS_REGISTER_CALLBACKS       0U /* SMBUS register callback disabled     */
+#define  USE_HAL_SPI_REGISTER_CALLBACKS         0U /* SPI register callback disabled       */
+#define  USE_HAL_TIM_REGISTER_CALLBACKS         0U /* TIM register callback disabled       */
+#define  USE_HAL_UART_REGISTER_CALLBACKS        0U /* UART register callback disabled      */
+#define  USE_HAL_USART_REGISTER_CALLBACKS       0U /* USART register callback disabled     */
+#define  USE_HAL_WWDG_REGISTER_CALLBACKS        0U /* WWDG register callback disabled      */
+
+/* ########################## Assert Selection ############################## */
+/**
+  * @brief Uncomment the line below to expanse the "assert_param" macro in the 
+  *        HAL drivers code
+  */
+/* #define USE_FULL_ASSERT    1 */
+
+/* ################## Ethernet peripheral configuration for NUCLEO 144 board ##################### */
+
+/* Section 1 : Ethernet peripheral configuration */
+
+/* MAC ADDRESS: MAC_ADDR0:MAC_ADDR1:MAC_ADDR2:MAC_ADDR3:MAC_ADDR4:MAC_ADDR5 */
+#define MAC_ADDR0   2U
+#define MAC_ADDR1   0U
+#define MAC_ADDR2   0U
+#define MAC_ADDR3   0U
+#define MAC_ADDR4   0U
+#define MAC_ADDR5   0U
+
+/* Definition of the Ethernet driver buffers size and count */   
+#define ETH_RX_BUF_SIZE                ETH_MAX_PACKET_SIZE /* buffer size for receive               */
+#define ETH_TX_BUF_SIZE                ETH_MAX_PACKET_SIZE /* buffer size for transmit              */
+#define ETH_RXBUFNB                    ((uint32_t)5)       /* 5 Rx buffers of size ETH_RX_BUF_SIZE  */
+#define ETH_TXBUFNB                    ((uint32_t)5)       /* 5 Tx buffers of size ETH_TX_BUF_SIZE  */
+
+/* Section 2: PHY configuration section */
+/* LAN8742A PHY Address*/
+#define LAN8742A_PHY_ADDRESS            0x00
+/* PHY Reset delay these values are based on a 1 ms Systick interrupt*/ 
+#define PHY_RESET_DELAY                 ((uint32_t)0x00000FFF)
+/* PHY Configuration delay */
+#define PHY_CONFIG_DELAY                ((uint32_t)0x00000FFF)
+
+#define PHY_READ_TO                     ((uint32_t)0x0000FFFF)
+#define PHY_WRITE_TO                    ((uint32_t)0x0000FFFF)
+
+/* Section 3: Common PHY Registers */
+
+#define PHY_BCR                         ((uint16_t)0x00)    /*!< Transceiver Basic Control Register   */
+#define PHY_BSR                         ((uint16_t)0x01)    /*!< Transceiver Basic Status Register    */
+ 
+#define PHY_RESET                       ((uint16_t)0x8000)  /*!< PHY Reset */
+#define PHY_LOOPBACK                    ((uint16_t)0x4000)  /*!< Select loop-back mode */
+#define PHY_FULLDUPLEX_100M             ((uint16_t)0x2100)  /*!< Set the full-duplex mode at 100 Mb/s */
+#define PHY_HALFDUPLEX_100M             ((uint16_t)0x2000)  /*!< Set the half-duplex mode at 100 Mb/s */
+#define PHY_FULLDUPLEX_10M              ((uint16_t)0x0100)  /*!< Set the full-duplex mode at 10 Mb/s  */
+#define PHY_HALFDUPLEX_10M              ((uint16_t)0x0000)  /*!< Set the half-duplex mode at 10 Mb/s  */
+#define PHY_AUTONEGOTIATION             ((uint16_t)0x1000)  /*!< Enable auto-negotiation function     */
+#define PHY_RESTART_AUTONEGOTIATION     ((uint16_t)0x0200)  /*!< Restart auto-negotiation function    */
+#define PHY_POWERDOWN                   ((uint16_t)0x0800)  /*!< Select the power down mode           */
+#define PHY_ISOLATE                     ((uint16_t)0x0400)  /*!< Isolate PHY from MII                 */
+
+#define PHY_AUTONEGO_COMPLETE           ((uint16_t)0x0020)  /*!< Auto-Negotiation process completed   */
+#define PHY_LINKED_STATUS               ((uint16_t)0x0004)  /*!< Valid link established               */
+#define PHY_JABBER_DETECTION            ((uint16_t)0x0002)  /*!< Jabber condition detected            */
+  
+/* Section 4: Extended PHY Registers */
+
+#define PHY_SR                          ((uint16_t)0x1F)    /*!< PHY special control/ status register Offset     */
+
+#define PHY_SPEED_STATUS                ((uint16_t)0x0004)  /*!< PHY Speed mask                                  */
+#define PHY_DUPLEX_STATUS               ((uint16_t)0x0010)  /*!< PHY Duplex mask                                 */
+
+
+#define PHY_ISFR                        ((uint16_t)0x1D)    /*!< PHY Interrupt Source Flag register Offset       */
+#define PHY_ISFR_INT4                   ((uint16_t)0x0010)  /*!< PHY Link down inturrupt                         */
+
+/* ################## SPI peripheral configuration ########################## */
+
+/* CRC FEATURE: Use to activate CRC feature inside HAL SPI Driver
+* Activated: CRC code is present inside driver
+* Deactivated: CRC code cleaned from driver
+*/
+
+#define USE_SPI_CRC                     1U
+
+/* Includes ------------------------------------------------------------------*/
+/**
+  * @brief Include module's header file 
+  */
+
+#ifdef HAL_RCC_MODULE_ENABLED
+  #include "stm32f7xx_hal_rcc.h"
+#endif /* HAL_RCC_MODULE_ENABLED */
+
+#ifdef HAL_GPIO_MODULE_ENABLED
+  #include "stm32f7xx_hal_gpio.h"
+#endif /* HAL_GPIO_MODULE_ENABLED */
+
+#ifdef HAL_DMA_MODULE_ENABLED
+  #include "stm32f7xx_hal_dma.h"
+#endif /* HAL_DMA_MODULE_ENABLED */
+   
+#ifdef HAL_CORTEX_MODULE_ENABLED
+  #include "stm32f7xx_hal_cortex.h"
+#endif /* HAL_CORTEX_MODULE_ENABLED */
+
+#ifdef HAL_ADC_MODULE_ENABLED
+  #include "stm32f7xx_hal_adc.h"
+#endif /* HAL_ADC_MODULE_ENABLED */
+
+#ifdef HAL_CAN_MODULE_ENABLED
+  #include "stm32f7xx_hal_can.h"
+#endif /* HAL_CAN_MODULE_ENABLED */
+
+#ifdef HAL_CAN_LEGACY_MODULE_ENABLED
+  #include "stm32f7xx_hal_can_legacy.h"
+#endif /* HAL_CAN_LEGACY_MODULE_ENABLED */
+
+#ifdef HAL_CEC_MODULE_ENABLED
+  #include "stm32f7xx_hal_cec.h"
+#endif /* HAL_CEC_MODULE_ENABLED */
+
+#ifdef HAL_CRC_MODULE_ENABLED
+  #include "stm32f7xx_hal_crc.h"
+#endif /* HAL_CRC_MODULE_ENABLED */
+
+#ifdef HAL_CRYP_MODULE_ENABLED
+  #include "stm32f7xx_hal_cryp.h" 
+#endif /* HAL_CRYP_MODULE_ENABLED */
+
+#ifdef HAL_DMA2D_MODULE_ENABLED
+  #include "stm32f7xx_hal_dma2d.h"
+#endif /* HAL_DMA2D_MODULE_ENABLED */
+
+#ifdef HAL_DAC_MODULE_ENABLED
+  #include "stm32f7xx_hal_dac.h"
+#endif /* HAL_DAC_MODULE_ENABLED */
+
+#ifdef HAL_DCMI_MODULE_ENABLED
+  #include "stm32f7xx_hal_dcmi.h"
+#endif /* HAL_DCMI_MODULE_ENABLED */
+
+#ifdef HAL_ETH_MODULE_ENABLED
+  #include "stm32f7xx_hal_eth.h"
+#endif /* HAL_ETH_MODULE_ENABLED */
+
+#ifdef HAL_FLASH_MODULE_ENABLED
+  #include "stm32f7xx_hal_flash.h"
+#endif /* HAL_FLASH_MODULE_ENABLED */
+ 
+#ifdef HAL_SRAM_MODULE_ENABLED
+  #include "stm32f7xx_hal_sram.h"
+#endif /* HAL_SRAM_MODULE_ENABLED */
+
+#ifdef HAL_NOR_MODULE_ENABLED
+  #include "stm32f7xx_hal_nor.h"
+#endif /* HAL_NOR_MODULE_ENABLED */
+
+#ifdef HAL_NAND_MODULE_ENABLED
+  #include "stm32f7xx_hal_nand.h"
+#endif /* HAL_NAND_MODULE_ENABLED */
+
+#ifdef HAL_SDRAM_MODULE_ENABLED
+  #include "stm32f7xx_hal_sdram.h"
+#endif /* HAL_SDRAM_MODULE_ENABLED */      
+
+#ifdef HAL_HASH_MODULE_ENABLED
+ #include "stm32f7xx_hal_hash.h"
+#endif /* HAL_HASH_MODULE_ENABLED */
+
+#ifdef HAL_I2C_MODULE_ENABLED
+ #include "stm32f7xx_hal_i2c.h"
+#endif /* HAL_I2C_MODULE_ENABLED */
+
+#ifdef HAL_I2S_MODULE_ENABLED
+ #include "stm32f7xx_hal_i2s.h"
+#endif /* HAL_I2S_MODULE_ENABLED */
+
+#ifdef HAL_IWDG_MODULE_ENABLED
+ #include "stm32f7xx_hal_iwdg.h"
+#endif /* HAL_IWDG_MODULE_ENABLED */
+
+#ifdef HAL_LPTIM_MODULE_ENABLED
+ #include "stm32f7xx_hal_lptim.h"
+#endif /* HAL_LPTIM_MODULE_ENABLED */
+
+#ifdef HAL_LTDC_MODULE_ENABLED
+ #include "stm32f7xx_hal_ltdc.h"
+#endif /* HAL_LTDC_MODULE_ENABLED */
+
+#ifdef HAL_PWR_MODULE_ENABLED
+ #include "stm32f7xx_hal_pwr.h"
+#endif /* HAL_PWR_MODULE_ENABLED */
+
+#ifdef HAL_QSPI_MODULE_ENABLED
+ #include "stm32f7xx_hal_qspi.h"
+#endif /* HAL_QSPI_MODULE_ENABLED */
+
+#ifdef HAL_RNG_MODULE_ENABLED
+ #include "stm32f7xx_hal_rng.h"
+#endif /* HAL_RNG_MODULE_ENABLED */
+
+#ifdef HAL_RTC_MODULE_ENABLED
+ #include "stm32f7xx_hal_rtc.h"
+#endif /* HAL_RTC_MODULE_ENABLED */
+
+#ifdef HAL_SAI_MODULE_ENABLED
+ #include "stm32f7xx_hal_sai.h"
+#endif /* HAL_SAI_MODULE_ENABLED */
+
+#ifdef HAL_SD_MODULE_ENABLED
+ #include "stm32f7xx_hal_sd.h"
+#endif /* HAL_SD_MODULE_ENABLED */
+
+#ifdef HAL_SPDIFRX_MODULE_ENABLED
+ #include "stm32f7xx_hal_spdifrx.h"
+#endif /* HAL_SPDIFRX_MODULE_ENABLED */
+
+#ifdef HAL_SPI_MODULE_ENABLED
+ #include "stm32f7xx_hal_spi.h"
+#endif /* HAL_SPI_MODULE_ENABLED */
+
+#ifdef HAL_TIM_MODULE_ENABLED
+ #include "stm32f7xx_hal_tim.h"
+#endif /* HAL_TIM_MODULE_ENABLED */
+
+#ifdef HAL_UART_MODULE_ENABLED
+ #include "stm32f7xx_hal_uart.h"
+#endif /* HAL_UART_MODULE_ENABLED */
+
+#ifdef HAL_USART_MODULE_ENABLED
+ #include "stm32f7xx_hal_usart.h"
+#endif /* HAL_USART_MODULE_ENABLED */
+
+#ifdef HAL_IRDA_MODULE_ENABLED
+ #include "stm32f7xx_hal_irda.h"
+#endif /* HAL_IRDA_MODULE_ENABLED */
+
+#ifdef HAL_SMARTCARD_MODULE_ENABLED
+ #include "stm32f7xx_hal_smartcard.h"
+#endif /* HAL_SMARTCARD_MODULE_ENABLED */
+
+#ifdef HAL_WWDG_MODULE_ENABLED
+ #include "stm32f7xx_hal_wwdg.h"
+#endif /* HAL_WWDG_MODULE_ENABLED */
+
+#ifdef HAL_PCD_MODULE_ENABLED
+ #include "stm32f7xx_hal_pcd.h"
+#endif /* HAL_PCD_MODULE_ENABLED */
+
+#ifdef HAL_HCD_MODULE_ENABLED
+ #include "stm32f7xx_hal_hcd.h"
+#endif /* HAL_HCD_MODULE_ENABLED */
+
+#ifdef HAL_DFSDM_MODULE_ENABLED
+ #include "stm32f7xx_hal_dfsdm.h"
+#endif /* HAL_DFSDM_MODULE_ENABLED */
+
+#ifdef HAL_DSI_MODULE_ENABLED
+ #include "stm32f7xx_hal_dsi.h"
+#endif /* HAL_DSI_MODULE_ENABLED */
+
+#ifdef HAL_JPEG_MODULE_ENABLED
+ #include "stm32f7xx_hal_jpeg.h"
+#endif /* HAL_JPEG_MODULE_ENABLED */
+
+#ifdef HAL_MDIOS_MODULE_ENABLED
+ #include "stm32f7xx_hal_mdios.h"
+#endif /* HAL_MDIOS_MODULE_ENABLED */
+   
+/* Exported macro ------------------------------------------------------------*/
+#ifdef  USE_FULL_ASSERT
+/**
+  * @brief  The assert_param macro is used for function's parameters check.
+  * @param  expr: If expr is false, it calls assert_failed function
+  *         which reports the name of the source file and the source
+  *         line number of the call that failed. 
+  *         If expr is true, it returns no value.
+  * @retval None
+  */
+  #define assert_param(expr) ((expr) ? (void)0 : assert_failed((uint8_t *)__FILE__, __LINE__))
+/* Exported functions ------------------------------------------------------- */
+  void assert_failed(uint8_t* file, uint32_t line);
+#else
+  #define assert_param(expr) ((void)0U)
+#endif /* USE_FULL_ASSERT */
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F7xx_HAL_CONF_H */
+ 
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
diff --git a/hw/bsp/stm32h743nucleo/board.mk b/hw/bsp/stm32h743nucleo/board.mk
index ae1ea4366..1ecb311ab 100644
--- a/hw/bsp/stm32h743nucleo/board.mk
+++ b/hw/bsp/stm32h743nucleo/board.mk
@@ -9,9 +9,6 @@ CFLAGS += \
   -nostdlib -nostartfiles \
   -DCFG_TUSB_MCU=OPT_MCU_STM32H7
 
-# The -Wno-error=sign-compare line is required due to STM32H7xx_HAL_Driver.
-CFLAGS += -Wno-error=sign-compare
-
 ST_HAL_DRIVER = hw/mcu/st/st_driver/STM32H7xx_HAL_Driver
 ST_CMSIS = hw/mcu/st/st_driver/CMSIS/Device/ST/STM32H7xx
 
@@ -39,3 +36,10 @@ INC += \
 # For TinyUSB port source
 VENDOR = st
 CHIP_FAMILY = synopsys
+
+# Path to STM32 Cube Programmer CLI, should be added into system path
+STM32Prog = STM32_Programmer_CLI
+
+# flash target using on-board stlink
+flash: $(BUILD)/$(BOARD)-firmware.elf
+	$(STM32Prog) --connect port=swd --write $< --go
diff --git a/hw/bsp/stm32h743nucleo/board_stm32h743nucleo.c b/hw/bsp/stm32h743nucleo/stm32h743nucleo.c
index 9f4c50692..2e02786ee 100644
--- a/hw/bsp/stm32h743nucleo/board_stm32h743nucleo.c
+++ b/hw/bsp/stm32h743nucleo/stm32h743nucleo.c
@@ -158,6 +158,7 @@ void board_init(void)
   GPIO_InitStruct.Alternate = GPIO_AF10_OTG2_HS;
   HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
+  // LED
   __HAL_RCC_GPIOB_CLK_ENABLE();
 
   GPIO_InitStruct.Pin = LED_PIN;
@@ -166,6 +167,7 @@ void board_init(void)
   GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH;
   HAL_GPIO_Init(LED_PORT, &GPIO_InitStruct);
 
+  // Button
   __HAL_RCC_GPIOC_CLK_ENABLE();
   GPIO_InitStruct.Pin = BUTTON_PIN;
   GPIO_InitStruct.Mode = GPIO_MODE_INPUT;