From ae3b6583ce6d2f5b6b02642805f6158f7e6b550b Mon Sep 17 00:00:00 2001 From: 陈豪 <547884940@qq.com> Date: Tue, 12 Aug 2014 18:22:04 +0800 Subject: [bsp]add gdb support for stm32f4xx --- bsp/stm32f40x/applications/application.c | 10 ++++++ bsp/stm32f40x/drivers/board.h | 1 + bsp/stm32f40x/drivers/stm32f4xx_it.c | 7 ++-- bsp/stm32f40x/drivers/usart.c | 60 ++++++++++++++++++++++++++++++++ bsp/stm32f40x/rtconfig.h | 3 ++ bsp/stm32f40x/stm32_rom.ld | 2 +- 6 files changed, 79 insertions(+), 4 deletions(-) (limited to 'bsp') diff --git a/bsp/stm32f40x/applications/application.c b/bsp/stm32f40x/applications/application.c index 2a01107f6b..c5e5bcf296 100644 --- a/bsp/stm32f40x/applications/application.c +++ b/bsp/stm32f40x/applications/application.c @@ -23,8 +23,18 @@ #include "stm32_eth.h" #endif +#ifdef RT_USING_GDB +#include +#endif + void rt_init_thread_entry(void* parameter) { + /* GDB STUB */ +#ifdef RT_USING_GDB + gdb_set_device("uart6"); + gdb_start(); +#endif + /* LwIP Initialization */ #ifdef RT_USING_LWIP { diff --git a/bsp/stm32f40x/drivers/board.h b/bsp/stm32f40x/drivers/board.h index 44fef35cb3..33b423ae1c 100644 --- a/bsp/stm32f40x/drivers/board.h +++ b/bsp/stm32f40x/drivers/board.h @@ -43,6 +43,7 @@ //#define RT_USING_UART1 #define RT_USING_UART2 //#define RT_USING_UART3 +#define RT_USING_UART6 // Console on USART: <0=> no console <1=>USART 1 <2=>USART 2 <3=> USART 3 // Default: 1 diff --git a/bsp/stm32f40x/drivers/stm32f4xx_it.c b/bsp/stm32f40x/drivers/stm32f4xx_it.c index 69a6068746..b7a82e3302 100644 --- a/bsp/stm32f40x/drivers/stm32f4xx_it.c +++ b/bsp/stm32f40x/drivers/stm32f4xx_it.c @@ -117,9 +117,10 @@ void SVC_Handler(void) * @param None * @retval None */ -void DebugMon_Handler(void) -{ -} +//void DebugMon_Handler(void) +//{ + //definitio in gdb/libcpu/cortexm +//} /** * @brief This function handles PendSVC exception. diff --git a/bsp/stm32f40x/drivers/usart.c b/bsp/stm32f40x/drivers/usart.c index 6864a3fc92..8b87dbbb10 100644 --- a/bsp/stm32f40x/drivers/usart.c +++ b/bsp/stm32f40x/drivers/usart.c @@ -69,6 +69,17 @@ struct stm32_serial_device uart3 = struct rt_device uart3_device; #endif +#ifdef RT_USING_UART6 +struct stm32_serial_int_rx uart6_int_rx; +struct stm32_serial_device uart6 = +{ + USART6, + &uart6_int_rx, + RT_NULL +}; +struct rt_device uart6_device; +#endif + //#define USART1_DR_Base 0x40013804 //#define USART2_DR_Base 0x40004404 //#define USART3_DR_Base 0x40004804 @@ -103,6 +114,14 @@ struct rt_device uart3_device; #define UART3_TX_DMA DMA1_Stream1 #define UART3_RX_DMA DMA1_Stream3 +#define UART6_GPIO_TX GPIO_Pin_6 +#define UART6_TX_PIN_SOURCE GPIO_PinSource6 +#define UART6_GPIO_RX GPIO_Pin_7 +#define UART6_RX_PIN_SOURCE GPIO_PinSource7 +#define UART6_GPIO GPIOC +#define UART6_GPIO_RCC RCC_AHB1Periph_GPIOC +#define RCC_APBPeriph_UART6 RCC_APB2Periph_USART6 + static void RCC_Configuration(void) { #ifdef RT_USING_UART1 @@ -128,6 +147,13 @@ static void RCC_Configuration(void) /* DMA clock enable */ RCC_APB1PeriphClockCmd(RCC_AHB1Periph_DMA1, ENABLE); #endif + +#ifdef RT_USING_UART6 + /* Enable USART6 GPIO clocks */ + RCC_AHB1PeriphClockCmd(UART6_GPIO_RCC, ENABLE); + /* Enable USART6 clock */ + RCC_APB2PeriphClockCmd(RCC_APBPeriph_UART6, ENABLE); +#endif } static void GPIO_Configuration(void) @@ -168,6 +194,16 @@ static void GPIO_Configuration(void) GPIO_PinAFConfig(UART3_GPIO, UART3_TX_PIN_SOURCE, GPIO_AF_USART3); GPIO_PinAFConfig(UART3_GPIO, UART3_RX_PIN_SOURCE, GPIO_AF_USART3); #endif + +#ifdef RT_USING_UART6 + /* Configure USART6 Rx/tx PIN */ + GPIO_InitStructure.GPIO_Pin = UART6_GPIO_TX | UART6_GPIO_RX; + GPIO_Init(UART6_GPIO, &GPIO_InitStructure); + + /* Connect alternate function */ + GPIO_PinAFConfig(UART6_GPIO, UART6_TX_PIN_SOURCE, GPIO_AF_USART6); + GPIO_PinAFConfig(UART6_GPIO, UART6_RX_PIN_SOURCE, GPIO_AF_USART6); +#endif } static void NVIC_Configuration(void) @@ -204,6 +240,15 @@ static void NVIC_Configuration(void) NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; NVIC_Init(&NVIC_InitStructure); #endif + +#ifdef RT_USING_UART6 + /* Enable the USART6 Interrupt */ + NVIC_InitStructure.NVIC_IRQChannel = USART6_IRQn; + NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1; + NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1; + NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; + NVIC_Init(&NVIC_InitStructure); +#endif } static void DMA_Configuration(void) @@ -346,4 +391,19 @@ void rt_hw_usart_init() /* enable interrupt */ USART_ITConfig(USART3, USART_IT_RXNE, ENABLE); #endif + +#ifdef RT_USING_UART6 + USART_InitStructure.USART_BaudRate = 9600; + USART_InitStructure.USART_WordLength = USART_WordLength_8b; + USART_InitStructure.USART_StopBits = USART_StopBits_1; + USART_InitStructure.USART_Parity = USART_Parity_No; + USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None; + USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; + USART_Init(USART6, &USART_InitStructure); + + /* register uart6 */ + rt_hw_serial_register(&uart6_device, "uart6", + RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM, + &uart6); +#endif } diff --git a/bsp/stm32f40x/rtconfig.h b/bsp/stm32f40x/rtconfig.h index e961fb2e8f..64cc047ad8 100644 --- a/bsp/stm32f40x/rtconfig.h +++ b/bsp/stm32f40x/rtconfig.h @@ -2,6 +2,9 @@ #ifndef __RTTHREAD_CFG_H__ #define __RTTHREAD_CFG_H__ +/* RT_GDB_STUB */ +//#define RT_USING_GDB + /* RT_NAME_MAX*/ #define RT_NAME_MAX 8 diff --git a/bsp/stm32f40x/stm32_rom.ld b/bsp/stm32f40x/stm32_rom.ld index bd2ef9fe44..aa9c9b2af2 100644 --- a/bsp/stm32f40x/stm32_rom.ld +++ b/bsp/stm32f40x/stm32_rom.ld @@ -10,7 +10,7 @@ MEMORY DATA (rw) : ORIGIN = 0x20000000, LENGTH = 128k /* 128K sram */ } ENTRY(Reset_Handler) -_system_stack_size = 0x100; +_system_stack_size = 0x200; SECTIONS { -- cgit v1.3.1 From a966dd3c3802198cf84adbd8aef08d9206e256ce Mon Sep 17 00:00:00 2001 From: 陈豪 <547884940@qq.com> Date: Tue, 12 Aug 2014 18:27:22 +0800 Subject: [bsp]add gdb support for BBB --- bsp/beaglebone/applications/application.c | 8 ++++++ bsp/beaglebone/drivers/serial.c | 42 ++++++++++++++++++++++++++++--- bsp/beaglebone/rtconfig.h | 6 +++++ bsp/beaglebone/rtconfig.py | 2 +- 4 files changed, 54 insertions(+), 4 deletions(-) (limited to 'bsp') diff --git a/bsp/beaglebone/applications/application.c b/bsp/beaglebone/applications/application.c index 99c2991df7..f34821e748 100644 --- a/bsp/beaglebone/applications/application.c +++ b/bsp/beaglebone/applications/application.c @@ -16,6 +16,10 @@ #include #include +#ifdef RT_USING_GDB +#include +#endif + int rt_application_init() { /* do component initialization */ @@ -23,6 +27,10 @@ int rt_application_init() #ifdef RT_USING_NEWLIB libc_system_init(RT_CONSOLE_DEVICE_NAME); #endif +#ifdef RT_USING_GDB + gdb_set_device("uart4"); + gdb_start(); +#endif return 0; } diff --git a/bsp/beaglebone/drivers/serial.c b/bsp/beaglebone/drivers/serial.c index 8dcd389123..1cc0e69a85 100644 --- a/bsp/beaglebone/drivers/serial.c +++ b/bsp/beaglebone/drivers/serial.c @@ -338,6 +338,42 @@ static void config_pinmux(void) #endif } +static int am33xx_putc_poll(struct rt_serial_device *serial, char c) +{ + struct am33xx_uart* uart; + + RT_ASSERT(serial != RT_NULL); + uart = (struct am33xx_uart *)serial->parent.user_data; + + while (!(UART_LSR_REG(uart->base) & 0x20)); + UART_THR_REG(uart->base) = c; + + return 1; +} + +static int am33xx_getc_poll(struct rt_serial_device *serial) +{ + int ch; + struct am33xx_uart* uart; + + RT_ASSERT(serial != RT_NULL); + uart = (struct am33xx_uart *)serial->parent.user_data; + + ch = -1; + while(!(UART_LSR_REG(uart->base) & 0x01)); + ch = UART_RHR_REG(uart->base) & 0xff; + + return ch; +} + +static const struct rt_uart_ops am33xx_gdb_ops = +{ + am33xx_configure, + am33xx_control, + am33xx_putc_poll, + am33xx_getc_poll, +}; + int rt_hw_serial_init(void) { struct serial_configure config; @@ -447,17 +483,17 @@ int rt_hw_serial_init(void) config.invert = NRZ_NORMAL; config.bufsz = RT_SERIAL_RB_BUFSZ; - serial4.ops = &am33xx_uart_ops; + serial4.ops = &am33xx_gdb_ops; serial4.config = config; /* enable RX interrupt */ - UART_IER_REG(uart4.base) = 0x01; + UART_IER_REG(uart4.base) = 0x00; /* install ISR */ rt_hw_interrupt_install(uart4.irq, am33xx_uart_isr, &serial4, "uart4"); rt_hw_interrupt_control(uart4.irq, 0, 0); rt_hw_interrupt_mask(uart4.irq); /* register UART4 device */ rt_hw_serial_register(&serial4, "uart4", - RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX, + RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM, &uart4); #endif diff --git a/bsp/beaglebone/rtconfig.h b/bsp/beaglebone/rtconfig.h index 15326d74cf..018b2862f1 100644 --- a/bsp/beaglebone/rtconfig.h +++ b/bsp/beaglebone/rtconfig.h @@ -2,6 +2,12 @@ #ifndef __RTTHREAD_CFG_H__ #define __RTTHREAD_CFG_H__ +//
+//#define RT_USING_GDB +//#define RT_GDB_DEBUG +#define RT_GDB_ICACHE +//
+ // // diff --git a/bsp/beaglebone/rtconfig.py b/bsp/beaglebone/rtconfig.py index 3c7f228d86..a5561f54d3 100644 --- a/bsp/beaglebone/rtconfig.py +++ b/bsp/beaglebone/rtconfig.py @@ -23,7 +23,7 @@ elif CROSS_TOOL == 'iar': if os.getenv('RTT_EXEC_PATH'): EXEC_PATH = os.getenv('RTT_EXEC_PATH') -BUILD = 'release' +BUILD = 'debug' if PLATFORM == 'gcc': # toolchains -- cgit v1.3.1 From ae8e46de1ff7386c5add04e8ee3830fc71042306 Mon Sep 17 00:00:00 2001 From: 陈豪 <547884940@qq.com> Date: Tue, 12 Aug 2014 18:27:50 +0800 Subject: Revert "[bsp]add gdb support for BBB" This reverts commit a966dd3c3802198cf84adbd8aef08d9206e256ce. --- bsp/beaglebone/applications/application.c | 8 ------ bsp/beaglebone/drivers/serial.c | 42 +++---------------------------- bsp/beaglebone/rtconfig.h | 6 ----- bsp/beaglebone/rtconfig.py | 2 +- 4 files changed, 4 insertions(+), 54 deletions(-) (limited to 'bsp') diff --git a/bsp/beaglebone/applications/application.c b/bsp/beaglebone/applications/application.c index f34821e748..99c2991df7 100644 --- a/bsp/beaglebone/applications/application.c +++ b/bsp/beaglebone/applications/application.c @@ -16,10 +16,6 @@ #include #include -#ifdef RT_USING_GDB -#include -#endif - int rt_application_init() { /* do component initialization */ @@ -27,10 +23,6 @@ int rt_application_init() #ifdef RT_USING_NEWLIB libc_system_init(RT_CONSOLE_DEVICE_NAME); #endif -#ifdef RT_USING_GDB - gdb_set_device("uart4"); - gdb_start(); -#endif return 0; } diff --git a/bsp/beaglebone/drivers/serial.c b/bsp/beaglebone/drivers/serial.c index 1cc0e69a85..8dcd389123 100644 --- a/bsp/beaglebone/drivers/serial.c +++ b/bsp/beaglebone/drivers/serial.c @@ -338,42 +338,6 @@ static void config_pinmux(void) #endif } -static int am33xx_putc_poll(struct rt_serial_device *serial, char c) -{ - struct am33xx_uart* uart; - - RT_ASSERT(serial != RT_NULL); - uart = (struct am33xx_uart *)serial->parent.user_data; - - while (!(UART_LSR_REG(uart->base) & 0x20)); - UART_THR_REG(uart->base) = c; - - return 1; -} - -static int am33xx_getc_poll(struct rt_serial_device *serial) -{ - int ch; - struct am33xx_uart* uart; - - RT_ASSERT(serial != RT_NULL); - uart = (struct am33xx_uart *)serial->parent.user_data; - - ch = -1; - while(!(UART_LSR_REG(uart->base) & 0x01)); - ch = UART_RHR_REG(uart->base) & 0xff; - - return ch; -} - -static const struct rt_uart_ops am33xx_gdb_ops = -{ - am33xx_configure, - am33xx_control, - am33xx_putc_poll, - am33xx_getc_poll, -}; - int rt_hw_serial_init(void) { struct serial_configure config; @@ -483,17 +447,17 @@ int rt_hw_serial_init(void) config.invert = NRZ_NORMAL; config.bufsz = RT_SERIAL_RB_BUFSZ; - serial4.ops = &am33xx_gdb_ops; + serial4.ops = &am33xx_uart_ops; serial4.config = config; /* enable RX interrupt */ - UART_IER_REG(uart4.base) = 0x00; + UART_IER_REG(uart4.base) = 0x01; /* install ISR */ rt_hw_interrupt_install(uart4.irq, am33xx_uart_isr, &serial4, "uart4"); rt_hw_interrupt_control(uart4.irq, 0, 0); rt_hw_interrupt_mask(uart4.irq); /* register UART4 device */ rt_hw_serial_register(&serial4, "uart4", - RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM, + RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX, &uart4); #endif diff --git a/bsp/beaglebone/rtconfig.h b/bsp/beaglebone/rtconfig.h index 018b2862f1..15326d74cf 100644 --- a/bsp/beaglebone/rtconfig.h +++ b/bsp/beaglebone/rtconfig.h @@ -2,12 +2,6 @@ #ifndef __RTTHREAD_CFG_H__ #define __RTTHREAD_CFG_H__ -//
-//#define RT_USING_GDB -//#define RT_GDB_DEBUG -#define RT_GDB_ICACHE -//
- // // diff --git a/bsp/beaglebone/rtconfig.py b/bsp/beaglebone/rtconfig.py index a5561f54d3..3c7f228d86 100644 --- a/bsp/beaglebone/rtconfig.py +++ b/bsp/beaglebone/rtconfig.py @@ -23,7 +23,7 @@ elif CROSS_TOOL == 'iar': if os.getenv('RTT_EXEC_PATH'): EXEC_PATH = os.getenv('RTT_EXEC_PATH') -BUILD = 'debug' +BUILD = 'release' if PLATFORM == 'gcc': # toolchains -- cgit v1.3.1 From 4cf77e255fc12d5ddda5f049f674c34ad9a18249 Mon Sep 17 00:00:00 2001 From: 陈豪 <547884940@qq.com> Date: Tue, 12 Aug 2014 18:39:53 +0800 Subject: [bsp]add gdb support for BBB --- bsp/beaglebone/applications/application.c | 8 ++++++++ bsp/beaglebone/drivers/serial.c | 11 ++++++++--- bsp/beaglebone/rtconfig.h | 6 ++++++ bsp/beaglebone/rtconfig.py | 2 +- 4 files changed, 23 insertions(+), 4 deletions(-) (limited to 'bsp') diff --git a/bsp/beaglebone/applications/application.c b/bsp/beaglebone/applications/application.c index 99c2991df7..f34821e748 100644 --- a/bsp/beaglebone/applications/application.c +++ b/bsp/beaglebone/applications/application.c @@ -16,6 +16,10 @@ #include #include +#ifdef RT_USING_GDB +#include +#endif + int rt_application_init() { /* do component initialization */ @@ -23,6 +27,10 @@ int rt_application_init() #ifdef RT_USING_NEWLIB libc_system_init(RT_CONSOLE_DEVICE_NAME); #endif +#ifdef RT_USING_GDB + gdb_set_device("uart4"); + gdb_start(); +#endif return 0; } diff --git a/bsp/beaglebone/drivers/serial.c b/bsp/beaglebone/drivers/serial.c index 8dcd389123..ee657a0d8f 100644 --- a/bsp/beaglebone/drivers/serial.c +++ b/bsp/beaglebone/drivers/serial.c @@ -80,6 +80,11 @@ static rt_err_t am33xx_configure(struct rt_serial_device *serial, struct serial_ UART_DLL_REG(base) = 26; UART_DLH_REG(base) = 0; } + else if (cfg->baud_rate == BAUD_RATE_9600) + { + UART_DLL_REG(base) = 0x38; + UART_DLH_REG(base) = 1; + } else { NOT_IMPLEMENTED(); @@ -439,7 +444,7 @@ int rt_hw_serial_init(void) #endif #ifdef RT_USING_UART4 - config.baud_rate = BAUD_RATE_115200; + config.baud_rate = BAUD_RATE_9600; config.bit_order = BIT_ORDER_LSB; config.data_bits = DATA_BITS_8; config.parity = PARITY_NONE; @@ -450,14 +455,14 @@ int rt_hw_serial_init(void) serial4.ops = &am33xx_uart_ops; serial4.config = config; /* enable RX interrupt */ - UART_IER_REG(uart4.base) = 0x01; + UART_IER_REG(uart4.base) = 0x00; /* install ISR */ rt_hw_interrupt_install(uart4.irq, am33xx_uart_isr, &serial4, "uart4"); rt_hw_interrupt_control(uart4.irq, 0, 0); rt_hw_interrupt_mask(uart4.irq); /* register UART4 device */ rt_hw_serial_register(&serial4, "uart4", - RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX, + RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM, &uart4); #endif diff --git a/bsp/beaglebone/rtconfig.h b/bsp/beaglebone/rtconfig.h index 15326d74cf..018b2862f1 100644 --- a/bsp/beaglebone/rtconfig.h +++ b/bsp/beaglebone/rtconfig.h @@ -2,6 +2,12 @@ #ifndef __RTTHREAD_CFG_H__ #define __RTTHREAD_CFG_H__ +//
+//#define RT_USING_GDB +//#define RT_GDB_DEBUG +#define RT_GDB_ICACHE +//
+ // // diff --git a/bsp/beaglebone/rtconfig.py b/bsp/beaglebone/rtconfig.py index 3c7f228d86..a5561f54d3 100644 --- a/bsp/beaglebone/rtconfig.py +++ b/bsp/beaglebone/rtconfig.py @@ -23,7 +23,7 @@ elif CROSS_TOOL == 'iar': if os.getenv('RTT_EXEC_PATH'): EXEC_PATH = os.getenv('RTT_EXEC_PATH') -BUILD = 'release' +BUILD = 'debug' if PLATFORM == 'gcc': # toolchains -- cgit v1.3.1 From 1f05b87e5a7b84e170ee287998ecb0b1f814445d Mon Sep 17 00:00:00 2001 From: 陈豪 <547884940@qq.com> Date: Tue, 12 Aug 2014 20:30:55 +0800 Subject: [bsp]stm32f4xx typo --- bsp/stm32f40x/drivers/stm32f4xx_it.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'bsp') diff --git a/bsp/stm32f40x/drivers/stm32f4xx_it.c b/bsp/stm32f40x/drivers/stm32f4xx_it.c index b7a82e3302..6c4ea2226a 100644 --- a/bsp/stm32f40x/drivers/stm32f4xx_it.c +++ b/bsp/stm32f40x/drivers/stm32f4xx_it.c @@ -119,7 +119,7 @@ void SVC_Handler(void) */ //void DebugMon_Handler(void) //{ - //definitio in gdb/libcpu/cortexm + // defined in gdb/libcpu/cortexm/gdb_gcc.S //} /** @@ -129,7 +129,7 @@ void SVC_Handler(void) */ //void PendSV_Handler(void) //{ -// // definition in libcpu/arm/cortex-m4/context_*.S +// // defined in libcpu/arm/cortex-m4/context_*.S //} /** @@ -139,7 +139,7 @@ void SVC_Handler(void) */ //void SysTick_Handler(void) //{ -// // definition in boarc.c +// // defined in boarc.c //} /******************************************************************************/ -- cgit v1.3.1 From 2a1e7d56fcca3132ebed9496a46b0794f9bd107c Mon Sep 17 00:00:00 2001 From: 陈豪 <547884940@qq.com> Date: Sat, 20 Sep 2014 01:44:56 +0800 Subject: [bsp]Comment stm32f407 uart6 --- bsp/stm32f40x/drivers/board.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'bsp') diff --git a/bsp/stm32f40x/drivers/board.h b/bsp/stm32f40x/drivers/board.h index 33b423ae1c..b3a1cb4a08 100644 --- a/bsp/stm32f40x/drivers/board.h +++ b/bsp/stm32f40x/drivers/board.h @@ -43,7 +43,7 @@ //#define RT_USING_UART1 #define RT_USING_UART2 //#define RT_USING_UART3 -#define RT_USING_UART6 +//#define RT_USING_UART6 // Console on USART: <0=> no console <1=>USART 1 <2=>USART 2 <3=> USART 3 // Default: 1 -- cgit v1.3.1 From daac5388afe5a18d51e9839719de8423b62b00c1 Mon Sep 17 00:00:00 2001 From: 陈豪 <547884940@qq.com> Date: Sat, 20 Sep 2014 20:56:02 +0800 Subject: [bsp]change BBB uart flag --- bsp/beaglebone/drivers/serial.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'bsp') diff --git a/bsp/beaglebone/drivers/serial.c b/bsp/beaglebone/drivers/serial.c index ee657a0d8f..1ecd96ced6 100644 --- a/bsp/beaglebone/drivers/serial.c +++ b/bsp/beaglebone/drivers/serial.c @@ -462,7 +462,7 @@ int rt_hw_serial_init(void) rt_hw_interrupt_mask(uart4.irq); /* register UART4 device */ rt_hw_serial_register(&serial4, "uart4", - RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STREAM, + RT_DEVICE_FLAG_RDWR, &uart4); #endif -- cgit v1.3.1