modify the coding style and add change logs

21 files changed, 707 insertions, 997 deletions

diff --git a/bsp/tm4c123bsp/board/board.c b/bsp/tm4c123bsp/board/board.c
index 7fddc43c3f..5e4b8baa58 100644
--- a/bsp/tm4c123bsp/board/board.c
+++ b/bsp/tm4c123bsp/board/board.c
@@ -7,51 +7,37 @@
  * Date           Author       Notes
  * 2017-07-24     Tanek        the first version
  * 2018-11-12     Ernest Chen  modify copyright
+ * 2020-06-27     AHTYDHD      modify to adapt in TM4C123
  */
- 
+
 #include <stdint.h>
 #include <stdbool.h>
-#include "hw_ints.h"
-#include "hw_sysctl.h"
-#include "hw_memmap.h"
-#include "hw_types.h"
-#include "fpu.h"
-#include "debug.h"
-#include "pin_map.h"
-#include "rom.h"
-#include "sysctl.h"
-#include "systick.h"
-#include "hw_ints.h"
+#include "inc/hw_sysctl.h"
+#include "inc/hw_memmap.h"
+#include "driverlib/fpu.h"
+#include "driverlib/sysctl.h"
+#include "driverlib/systick.h"
 #include "board.h"
 
-// Holds the system core clock, which is the system clock 
-// frequency supplied to the SysTick timer and the processor 
-// core clock.
 uint32_t SystemCoreClock;
 
-
-
+/* this function set the system clock */
 void SystemCoreClockUpdate(void)
 {
-	
-	   FPULazyStackingEnable();
-
-    //
-    // Set the clocking to run directly from the crystal.
-    //
+    FPULazyStackingEnable();
+    /* Set the clocking to run directly from the crystal. 50MHz*/
     SysCtlClockSet(SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_XTAL_16MHZ |
-                       SYSCTL_OSC_MAIN);
-	
-	  SystemCoreClock = SysCtlClockGet();
-
+                   SYSCTL_OSC_MAIN);
+    SystemCoreClock = SysCtlClockGet();
 }
 
+/* this funtion set the Systick and enable systick int */
 void SysTickConfig()
 {
-	  SysTickDisable();
-    SysTickPeriodSet(SystemCoreClock/RT_TICK_PER_SECOND);
+    SysTickDisable();
+    SysTickPeriodSet(SystemCoreClock / RT_TICK_PER_SECOND);
     SysTickIntEnable();
-    SysTickEnable();	
+    SysTickEnable();
 }
 
 /**
@@ -65,44 +51,32 @@ void rt_hw_board_init()
     SysTickConfig();
 
 #ifdef RT_USING_SERIAL
-		rt_hw_usart_init();
+    rt_hw_usart_init();
 #endif
 #ifdef RT_USING_PIN
-	  rt_hw_pin_init();
+    rt_hw_pin_init();
 #endif
-
 #ifdef RT_USING_PWM
-	  rt_hw_pwm_init();
+    rt_hw_pwm_init();
 #endif
     /* Call components board initial (use INIT_BOARD_EXPORT()) */
 #ifdef RT_USING_COMPONENTS_INIT
     rt_components_board_init();
 #endif
-	
-	  rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
+    /* set the console device */
+    rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
 
 #if defined(RT_USING_USER_MAIN) && defined(RT_USING_HEAP)
     rt_system_heap_init((void *)HEAP_BEGIN, (void *)HEAP_END);
-	  
 #endif
 
-
 }
 
-
 void SysTick_Handler(void)
 {
     /* enter interrupt */
     rt_interrupt_enter();
-
     rt_tick_increase();
-
     /* leave interrupt */
     rt_interrupt_leave();
 }
-
-
-
-
-
-
diff --git a/bsp/tm4c123bsp/board/board.h b/bsp/tm4c123bsp/board/board.h
index a294b98381..e702eb65ee 100644
--- a/bsp/tm4c123bsp/board/board.h
+++ b/bsp/tm4c123bsp/board/board.h
@@ -1,32 +1,40 @@
-#ifndef   _BOARD_H_
-#define   _BOARD_H_
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
+
+#ifndef   __BOARD_H__
+#define   __BOARD_H__
 
 #include <rthw.h>
 #include <rtthread.h>
 
-
 #if defined(RT_USING_USER_MAIN) && defined(RT_USING_HEAP)
-
-#define TM4C123_SRAM1_START              (0x20000000)      
+#define TM4C123_SRAM1_START              (0x20000000)
 #define TM4C123_SRAM1_END                (TM4C123_SRAM1_START + 32 * 1024)   // end address = 0x20000000(base adddress) + 32K(RAM size)
 
 #if defined(__CC_ARM) || defined(__CLANG_ARM)
 extern int Image$$RW_IRAM$$ZI$$Limit;                   // RW_IRAM
 #define HEAP_BEGIN      ((void *)&Image$$RW_IRAM$$ZI$$Limit)
+#elif __ICCARM__
+#pragma section="HEAP"
+#define HEAP_BEGIN  (__segment_end("HEAP"))
+#else
+extern int _ebss;
+#define HEAP_BEGIN  ((void *)&_ebss)
 #endif
-
 #define HEAP_END                       TM4C123_SRAM1_END
-
 #endif
 
-
-
-
 #ifdef RT_USING_PIN
 #include "drv_gpio.h"
 #endif /* RT_USING_PIN */
 
-
 #ifdef RT_USING_SERIAL
 #include "drv_uart.h"
 #endif /* RT_USING_SERIAL */
@@ -39,9 +47,6 @@ extern int Image$$RW_IRAM$$ZI$$Limit;                   // RW_IRAM
 #include "drv_spi.h"
 #endif /* RT_USING_SPI*/
 
+#endif /*__BOARD_H__*/
 
-
-
-
-#endif /*_BOARD_H_*/
-
+/************************** end of file ******************/
\ No newline at end of file
diff --git a/bsp/tm4c123bsp/board/tm4c123_config.c b/bsp/tm4c123bsp/board/tm4c123_config.c
index a79b9801fe..f0be78a6fd 100644
--- a/bsp/tm4c123bsp/board/tm4c123_config.c
+++ b/bsp/tm4c123bsp/board/tm4c123_config.c
@@ -1,77 +1,88 @@
-#include "stdbool.h"
-#include "stdint.h"
-#include "hw_memmap.h"
-#include "pin_map.h"
-#include "sysctl.h"
-#include "pwm.h"
-#include "gpio.h"
-#include "uart.h"
-#include "adc.h"
-#include "ssi.h"
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
 
+#include <rtthread.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include "inc/hw_memmap.h"
+#include "driverlib/pin_map.h"
+#include "driverlib/sysctl.h"
+#include "driverlib/gpio.h"
 #include "tm4c123_config.h"
 
+#ifdef RT_USING_SERIAL
+#include "driverlib/uart.h"
+#endif /* RT_USING_SERIAL */
+#ifdef RT_USING_ADC
+#include "driverlib/adc.h"
+#endif /* RT_USING_ADC */
+#ifdef RT_USING_PWM
+#include "driverlib/pwm.h"
+#endif /* RT_USING_PWM */
+#ifdef RT_USING_SPI
+#include "driverlib/ssi.h"
+#endif /* RT_USING_SPI */
 
 
-
+#ifdef RT_USING_SERIAL
 void uart_hw_config(void)
 {
-	  SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
+    /* UART0 */
+    SysCtlPeripheralEnable(SYSCTL_PERIPH_UART0);
     SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
-	  GPIOPinConfigure(GPIO_PA0_U0RX);
+    GPIOPinConfigure(GPIO_PA0_U0RX);
     GPIOPinConfigure(GPIO_PA1_U0TX);
     GPIOPinTypeUART(GPIO_PORTA_BASE, GPIO_PIN_0 | GPIO_PIN_1);
-	
-	  SysCtlPeripheralEnable(SYSCTL_PERIPH_UART1);
+    /* UART1 */
+    SysCtlPeripheralEnable(SYSCTL_PERIPH_UART1);
     SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
-	  GPIOPinConfigure(GPIO_PC4_U1RX);
+    GPIOPinConfigure(GPIO_PC4_U1RX);
     GPIOPinConfigure(GPIO_PC5_U1TX);
     GPIOPinTypeUART(GPIO_PORTC_BASE, GPIO_PIN_4 | GPIO_PIN_5);
-	  
 }
+#endif /* RT_USING_SERIAL */
 
+#ifdef RT_USING_ADC
+void adc_hw_config(void)
+{
+    /* ADC0 */
+    SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0);
+    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
+    GPIOPinTypeADC(GPIO_PORTD_BASE, GPIO_PIN_0 | GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3);
+}
+#endif /* RT_USING_ADC */
 
-
+#ifdef RT_USING_PWM
 void pwm_hw_config(void)
 {
-	SysCtlPWMClockSet(SYSCTL_PWMDIV_2);
-   //GPIO port D needs to be enabled so these pins can be used.
-	SysCtlPeripheralEnable(SYSCTL_PERIPH_PWM1);
+    /* PWM7 (PWM1 module,M1PWM6 and M1PWM7) */
+    SysCtlPWMClockSet(SYSCTL_PWMDIV_2);
+    SysCtlPeripheralEnable(SYSCTL_PERIPH_PWM1);
     SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOF);
-
-     // Configure the GPIO pin muxing to select PWM functions for these pins.
     GPIOPinConfigure(GPIO_PF2_M1PWM6);
     GPIOPinConfigure(GPIO_PF3_M1PWM7);
-
-     // Configure the GPIO pad for PWM function on pins PF2 and PF3
-    GPIOPinTypePWM(GPIO_PORTF_BASE, GPIO_PIN_2|GPIO_PIN_3);	
-	 
-}
-
-
-void adc_hw_config(void)
-{
-    // The ADC0 peripheral must be enabled for use.
-    //
-    SysCtlPeripheralEnable(SYSCTL_PERIPH_ADC0);
-
-    // GPIO port D needs to be enabled
-    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOD);
-
-    // Select the analog ADC function for these pins.
-    GPIOPinTypeADC(GPIO_PORTD_BASE, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3); 
+    GPIOPinTypePWM(GPIO_PORTF_BASE, GPIO_PIN_2 | GPIO_PIN_3);
 }
+#endif /* RT_USING_PWM */
 
-
+#ifdef RT_USING_SPI
 void  spi_hw_config(void)
 {
+    /* SPI0 */
     SysCtlPeripheralEnable(SYSCTL_PERIPH_SSI0);
     SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);
     GPIOPinConfigure(GPIO_PA2_SSI0CLK);
-    //GPIOPinConfigure(GPIO_PA3_SSI0FSS);
     GPIOPinConfigure(GPIO_PA4_SSI0RX);
     GPIOPinConfigure(GPIO_PA5_SSI0TX);
     GPIOPinTypeSSI(GPIO_PORTA_BASE, GPIO_PIN_5 | GPIO_PIN_4 | GPIO_PIN_2);
-
 }
+#endif /* RT_USING_SPI */
 
+/************************** end of file ******************/
\ No newline at end of file
diff --git a/bsp/tm4c123bsp/board/tm4c123_config.h b/bsp/tm4c123bsp/board/tm4c123_config.h
index 8fe0b9a8b7..38128bc60f 100644
--- a/bsp/tm4c123bsp/board/tm4c123_config.h
+++ b/bsp/tm4c123bsp/board/tm4c123_config.h
@@ -1,23 +1,38 @@
-#ifndef _TM4C123GH6PZ_CONFIG_H_
-#define _TM4C123GH6PZ_CONFIG_H_
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
 
+#ifndef __TM4C123GH6PZ_CONFIG_H__
+#define __TM4C123GH6PZ_CONFIG_H__
 
 #ifdef __cplusplus
 extern "C" {
 #endif
-	
-	
-	
 
-void uart_hw_config(void);	
-void pwm_hw_config(void);	
+#ifdef RT_USING_SERIAL
+void uart_hw_config(void);
+#endif /* RT_USING_SERIAL */
+#ifdef RT_USING_ADC
 void adc_hw_config(void);
-void spi_hw_config(void);	
-	
+#endif /* RT_USING_ADC */
+#ifdef RT_USING_PWM
+void pwm_hw_config(void);
+#endif /* RT_USING_PWM */
+#ifdef RT_USING_SPI
+void spi_hw_config(void);
+#endif /* RT_USING_SPI */
+
 #ifdef __cplusplus
 }
 #endif
 
+#endif /*__TM4C123GH6PZ_CONFIG_H__*/
 
-#endif /*_TM4C123GH6PZ_CONFIG_H_*/
+/************************** end of file ******************/
 
diff --git a/bsp/tm4c123bsp/libraries/Drivers/config/adc_config.h b/bsp/tm4c123bsp/libraries/Drivers/config/adc_config.h
index 11d07dd410..c0f2d12ca1 100644
--- a/bsp/tm4c123bsp/libraries/Drivers/config/adc_config.h
+++ b/bsp/tm4c123bsp/libraries/Drivers/config/adc_config.h
@@ -1,13 +1,20 @@
-#ifndef _ADC_CONFIG_H_
-#define _ADC_CONFIG_H_
-
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
 
+#ifndef __ADC_CONFIG_H__
+#define __ADC_CONFIG_H__
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-
 #ifdef BSP_USING_ADC0
 #ifndef ADC0_CONFIG
 #define ADC0_CONFIG                             \
@@ -36,10 +43,10 @@ extern "C" {
 #endif /* ADC1_CONFIG */
 #endif /* BSP_USING_ADC1 */		
 				
-	
 #ifdef __cplusplus
 }
 #endif
 
+#endif /*__ADC_CONFIG_H__*/
 
-#endif /*_ADC_CONFIG_H_*/
+/************************** end of file ******************/
\ No newline at end of file
diff --git a/bsp/tm4c123bsp/libraries/Drivers/config/pwm_config.h b/bsp/tm4c123bsp/libraries/Drivers/config/pwm_config.h
index 2d4db93112..92dcdeabc6 100644
--- a/bsp/tm4c123bsp/libraries/Drivers/config/pwm_config.h
+++ b/bsp/tm4c123bsp/libraries/Drivers/config/pwm_config.h
@@ -1,7 +1,15 @@
-#ifndef _PWM_CONFIG_H_
-#define _PWM_CONFIG_H_
-
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
 
+#ifndef __PWM_CONFIG_H__
+#define __PWM_CONFIG_H__
 
 #ifdef __cplusplus
 extern "C" {
@@ -102,13 +110,11 @@ extern "C" {
     }
 #endif /* PWM7_CONFIG */
 #endif /* BSP_USING_PWM7 */	
-	
-			
-	
+				
 #ifdef __cplusplus
 }
 #endif
 
+#endif /*__PWM_CONFIG_H__*/
 
-#endif /*_PWM_CONFIG_H_*/
-
+/************************** end of file ******************/
\ No newline at end of file
diff --git a/bsp/tm4c123bsp/libraries/Drivers/config/spi_config.h b/bsp/tm4c123bsp/libraries/Drivers/config/spi_config.h
index 0142f9c69b..8a4cfcbc4e 100644
--- a/bsp/tm4c123bsp/libraries/Drivers/config/spi_config.h
+++ b/bsp/tm4c123bsp/libraries/Drivers/config/spi_config.h
@@ -1,3 +1,13 @@
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
+
 #ifndef __SPI_CONFIG_H__
 #define __SPI_CONFIG_H__
 
@@ -17,7 +27,6 @@ extern "C" {
 #endif /* SPI0_BUS_CONFIG */
 #endif /* BSP_USING_SPI0 */
 
-
 #ifdef BSP_USING_SPI1
 #ifndef SPI1_BUS_CONFIG
 #define SPI1_BUS_CONFIG                             \
@@ -38,7 +47,6 @@ extern "C" {
 #endif /* SPI2_BUS_CONFIG */
 #endif /* BSP_USING_SPI2 */
     
-
 #ifdef BSP_USING_SPI3
 #ifndef SPI3_BUS_CONFIG
 #define SPI3_BUS_CONFIG                             \
@@ -54,3 +62,5 @@ extern "C" {
 #endif
 
 #endif /*__SPI_CONFIG_H__ */
+
+/************************** end of file ******************/
\ No newline at end of file
diff --git a/bsp/tm4c123bsp/libraries/Drivers/config/uart_config.h b/bsp/tm4c123bsp/libraries/Drivers/config/uart_config.h
index 6588101df4..f583569f72 100644
--- a/bsp/tm4c123bsp/libraries/Drivers/config/uart_config.h
+++ b/bsp/tm4c123bsp/libraries/Drivers/config/uart_config.h
@@ -1,3 +1,12 @@
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
 
 #ifndef __UART_CONFIG_H__
 #define __UART_CONFIG_H__
@@ -6,7 +15,6 @@
 extern "C" {
 #endif
 
-
 #if defined(BSP_USING_UART0)
 #ifndef UART0_CONFIG
 #define UART0_CONFIG                                                \
@@ -63,5 +71,6 @@ extern "C" {
 }
 #endif
 
-#endif
+#endif /* __UART_CONFIG_H__ */
 
+/************************** end of file ******************/
\ No newline at end of file
diff --git a/bsp/tm4c123bsp/libraries/Drivers/drv_adc.c b/bsp/tm4c123bsp/libraries/Drivers/drv_adc.c
index 6409cf9fe4..daf8e7b8ca 100644
--- a/bsp/tm4c123bsp/libraries/Drivers/drv_adc.c
+++ b/bsp/tm4c123bsp/libraries/Drivers/drv_adc.c
@@ -1,19 +1,24 @@
-#include "drv_adc.h"
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
 
+#include "drv_adc.h"
 #include <stdint.h>
 #include <stdbool.h>
-#include <string.h>
-#include "hw_memmap.h"
-#include "adc.h"
-#include "sysctl.h"
-
-
+#include "inc/hw_memmap.h"
+#include "driverlib/adc.h"
+#include "driverlib/sysctl.h"
 
 #ifdef  RT_USING_ADC
-
 #include "adc_config.h"
 #include "tm4c123_config.h"
-
+#include <string.h>
 
 #define LOG_TAG             "drv.adc"
 #include <drv_log.h>
@@ -23,11 +28,9 @@ static struct tm4c123_adc_config adc_config[] =
 #ifdef BSP_USING_ADC0
     ADC0_CONFIG,
 #endif
-
 #ifdef BSP_USING_ADC1
     ADC1_CONFIG,
 #endif
-
 };
 
 struct tm4c123_adc
@@ -36,56 +39,46 @@ struct tm4c123_adc
     struct rt_adc_device adc_device;
 };
 
-static struct tm4c123_adc   adc_obj[sizeof(adc_config) / sizeof(adc_config[0])]={0};
+static struct tm4c123_adc   adc_obj[sizeof(adc_config) / sizeof(adc_config[0])] = {0};
 
 static rt_err_t tm4c123_adc_enabled(struct rt_adc_device *device, rt_uint32_t channel, rt_bool_t enabled)
 {
     RT_ASSERT(device != RT_NULL);
-    //stm32_adc_handler = device->parent.user_data;
+    struct tm4c123_adc_config   *config = (struct tm4c123_adc_config *)device->parent.user_data;
 
     if (enabled)
     {
-        ADCSequenceEnable(ADC0_BASE, 2);
-        ADCIntClear(ADC0_BASE, 2);
+        ADCSequenceEnable(config->adcbase, config->sequence);
+        ADCIntClear(config->adcbase, config->sequence);
     }
     else
     {
-        ADCSequenceDisable(ADC0_BASE, 2);
+        ADCSequenceDisable(config->adcbase, config->sequence);
     }
-
     return RT_EOK;
 }
 
-
 static rt_err_t tm4c123_get_adc_value(struct rt_adc_device *device, rt_uint32_t channel, rt_uint32_t *value)
 {
-    
+
     RT_ASSERT(device != RT_NULL);
     RT_ASSERT(value != RT_NULL);
-    
-    uint32_t    pui32ADC0Value[4]={0};
 
-    // Trigger the ADC conversion.
-    //
-    ADCProcessorTrigger(ADC0_BASE, 2);
+    uint32_t    pui32ADC0Value[4] = {0};
+    struct tm4c123_adc_config   *config = (struct tm4c123_adc_config *)device->parent.user_data;
 
-    //
-    // Wait for conversion to be completed.
-    //
-    while(!ADCIntStatus(ADC0_BASE, 2, false))
+    /* Trigger the ADC conversion. */
+    ADCProcessorTrigger(config->adcbase, config->sequence);
+
+    while (!ADCIntStatus(config->adcbase, config->sequence, false))
     {
     }
 
-    //
-    // Clear the ADC interrupt flag.
-    //
-    ADCIntClear(ADC0_BASE, 2);
-
-    //
-    // Read ADC Value.
-    //
-    ADCSequenceDataGet(ADC0_BASE, 2, pui32ADC0Value);
+    /* Clear the ADC interrupt flag. */
+    ADCIntClear(config->adcbase, config->sequence);
 
+    /* Read ADC Value. */
+    ADCSequenceDataGet(config->adcbase, config->sequence, pui32ADC0Value);
 
     /* get ADC value */
     *value = (rt_uint32_t)pui32ADC0Value[channel];
@@ -102,39 +95,39 @@ static const struct rt_adc_ops tm4c123_adc_ops =
 
 static rt_err_t tm4c123_hw_adc_init(struct tm4c123_adc *device)
 {
-    
+
     uint32_t  adcbase = device->config->adcbase;
     uint32_t  sequencenum = device->config->sequence;
 
-    ADCSequenceConfigure(adcbase, sequencenum, 
-                        device->config->trigermode, 0); 
+    ADCSequenceConfigure(adcbase, sequencenum,
+                         device->config->trigermode, 0);
 
-    ADCSequenceStepConfigure(ADC0_BASE, 2, 0, ADC_CTL_CH7 );
-    ADCSequenceStepConfigure(ADC0_BASE, 2, 1, ADC_CTL_CH6 | ADC_CTL_IE );
-    ADCSequenceStepConfigure(ADC0_BASE, 2, 2, ADC_CTL_CH5 );
-    //Tell the ADC logic
-    // that this is the last conversion on sequence 3 (ADC_CTL_END).  
-    ADCSequenceStepConfigure(ADC0_BASE, 2, 3, ADC_CTL_CH4 | ADC_CTL_IE |
-                              ADC_CTL_END);
-	  return RT_EOK;
+    ADCSequenceStepConfigure(adcbase, sequencenum, 0, ADC_CTL_CH7);
+    ADCSequenceStepConfigure(adcbase, sequencenum, 1, ADC_CTL_CH6 | ADC_CTL_IE);
+    ADCSequenceStepConfigure(adcbase, sequencenum, 2, ADC_CTL_CH5);
+    /*Tell the ADC logic
+      that this is the last conversion on sequence 3 (ADC_CTL_END). */
+    ADCSequenceStepConfigure(adcbase, sequencenum, 3, ADC_CTL_CH4 | ADC_CTL_IE |
+                             ADC_CTL_END);
+    return RT_EOK;
 }
 
 
 static int tm4c123_adc_init(void)
 {
-	  int i = 0;
-	  rt_size_t obj_num = sizeof(adc_obj) / sizeof(struct tm4c123_adc);
-	  rt_err_t result = RT_EOK;
+    int i = 0;
+    rt_size_t obj_num = sizeof(adc_obj) / sizeof(struct tm4c123_adc);
+    rt_err_t result = RT_EOK;
 
-    adc_hw_config(); 
+    adc_hw_config();
 
     for (i = 0; i < obj_num; i++)
     {
         /* ADC init */
         adc_obj[i].config = &adc_config[i];
-        
 
-       if(tm4c123_hw_adc_init(&adc_obj[i])!= RT_EOK)
+
+        if (tm4c123_hw_adc_init(&adc_obj[i]) != RT_EOK)
         {
             LOG_E("%s init failed", adc_obj[i].config->name);
             result = -RT_ERROR;
@@ -143,9 +136,9 @@ static int tm4c123_adc_init(void)
         else
         {
             LOG_D("%s init success", adc_obj[i].config->name);
-            
+
             /* register adc device */
-            if (rt_hw_adc_register(&adc_obj[i].adc_device, adc_obj[i].config->name, &tm4c123_adc_ops,RT_NULL) == RT_EOK)
+            if (rt_hw_adc_register(&adc_obj[i].adc_device, adc_obj[i].config->name, &tm4c123_adc_ops, &adc_config[i]) == RT_EOK)
             {
                 LOG_D("%s register success", adc_obj[i].config->name);
             }
@@ -162,3 +155,5 @@ static int tm4c123_adc_init(void)
 INIT_APP_EXPORT(tm4c123_adc_init);
 
 #endif  /*RT_UING_ADC*/
+
+/************************** end of file ******************/
\ No newline at end of file
diff --git a/bsp/tm4c123bsp/libraries/Drivers/drv_adc.h b/bsp/tm4c123bsp/libraries/Drivers/drv_adc.h
index c9c5ffe642..0c6d3c3174 100644
--- a/bsp/tm4c123bsp/libraries/Drivers/drv_adc.h
+++ b/bsp/tm4c123bsp/libraries/Drivers/drv_adc.h
@@ -1,6 +1,16 @@
 #ifndef _DRV_ADC_H_
 #define _DRV_ADC_H_
 
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
+
 #include<stdint.h>
 #include<rtthread.h>
 #include<rtdevice.h>
@@ -8,13 +18,14 @@
 
 struct tm4c123_adc_config
 {
-        const char  *name;       
-        uint32_t    adcbase;   
-        uint32_t    channel;           
-		uint32_t    sequence;                      
-		uint32_t    trigermode;               
-        uint32_t    sequencepriority;                   
+    const char  *name;
+    uint32_t    adcbase;
+    uint32_t    channel;
+    uint32_t    sequence;
+    uint32_t    trigermode;
+    uint32_t    sequencepriority;
 };
 
-
 #endif /*_DRV_ADC_H_*/
+
+/************************** end of file ******************/
\ No newline at end of file
diff --git a/bsp/tm4c123bsp/libraries/Drivers/drv_flash/drv_flash.h b/bsp/tm4c123bsp/libraries/Drivers/drv_flash/drv_flash.h
deleted file mode 100644
index 3a9d5be061..0000000000
--- a/bsp/tm4c123bsp/libraries/Drivers/drv_flash/drv_flash.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2018-12-5      SummerGift   first version
- */
-
-#ifndef __DRV_FLASH_H__
-#define __DRV_FLASH_H__
-
-#include <rtthread.h>
-#include "rtdevice.h"
-#include <rthw.h>
-#include <drv_common.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-int stm32_flash_read(rt_uint32_t addr, rt_uint8_t *buf, size_t size);
-int stm32_flash_write(rt_uint32_t addr, const rt_uint8_t *buf, size_t size);
-int stm32_flash_erase(rt_uint32_t addr, size_t size);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif  /* __DRV_FLASH_H__ */
diff --git a/bsp/tm4c123bsp/libraries/Drivers/drv_flash/drv_flash_f1.c b/bsp/tm4c123bsp/libraries/Drivers/drv_flash/drv_flash_f1.c
deleted file mode 100644
index 8f7d45ade7..0000000000
--- a/bsp/tm4c123bsp/libraries/Drivers/drv_flash/drv_flash_f1.c
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
- * Copyright (c) 2006-2018, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date           Author       Notes
- * 2018-12-5      SummerGift   first version
- */
-
-#include "board.h"
-
-#ifdef BSP_USING_ON_CHIP_FLASH
-#include "drv_config.h"
-#include "drv_flash.h"
-
-#if defined(PKG_USING_FAL)
-#include "fal.h"
-#endif
-
-//#define DRV_DEBUG
-#define LOG_TAG                "drv.flash"
-#include <drv_log.h>
-
-/**
-  * @brief  Gets the page of a given address
-  * @param  Addr: Address of the FLASH Memory
-  * @retval The page of a given address
-  */
-static uint32_t GetPage(uint32_t addr)
-{
-    uint32_t page = 0;
-    page = RT_ALIGN_DOWN(addr, FLASH_PAGE_SIZE);
-    return page;
-}
-
-/**
- * Read data from flash.
- * @note This operation's units is word.
- *
- * @param addr flash address
- * @param buf buffer to store read data
- * @param size read bytes size
- *
- * @return result
- */
-int stm32_flash_read(rt_uint32_t addr, rt_uint8_t *buf, size_t size)
-{
-    size_t i;
-
-    if ((addr + size) > STM32_FLASH_END_ADDRESS)
-    {
-        LOG_E("read outrange flash size! addr is (0x%p)", (void *)(addr + size));
-        return -RT_EINVAL;
-    }
-
-    for (i = 0; i < size; i++, buf++, addr++)
-    {
-        *buf = *(rt_uint8_t *) addr;
-    }
-
-    return size;
-}
-
-/**
- * Write data to flash.
- * @note This operation's units is word.
- * @note This operation must after erase. @see flash_erase.
- *
- * @param addr flash address
- * @param buf the write data buffer
- * @param size write bytes size
- *
- * @return result
- */
-int stm32_flash_write(rt_uint32_t addr, const rt_uint8_t *buf, size_t size)
-{
-    rt_err_t result        = RT_EOK;
-    rt_uint32_t end_addr   = addr + size;
-
-    if (addr % 4 != 0)
-    {
-        LOG_E("write addr must be 4-byte alignment");
-        return -RT_EINVAL;
-    }
-
-    if ((end_addr) > STM32_FLASH_END_ADDRESS)
-    {
-        LOG_E("write outrange flash size! addr is (0x%p)", (void *)(addr + size));
-        return -RT_EINVAL;
-    }
-
-    HAL_FLASH_Unlock();
-
-    while (addr < end_addr)
-    {
-        if (HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, addr, *((rt_uint32_t *)buf)) == HAL_OK)
-        {
-            if (*(rt_uint32_t *)addr != *(rt_uint32_t *)buf)
-            {
-                result = -RT_ERROR;
-                break;
-            }
-            addr += 4;
-            buf  += 4;
-        }
-        else
-        {
-            result = -RT_ERROR;
-            break;
-        }
-    }
-
-    HAL_FLASH_Lock();
-
-    if (result != RT_EOK)
-    {
-        return result;
-    }
-
-    return size;
-}
-
-/**
- * Erase data on flash.
- * @note This operation is irreversible.
- * @note This operation's units is different which on many chips.
- *
- * @param addr flash address
- * @param size erase bytes size
- *
- * @return result
- */
-int stm32_flash_erase(rt_uint32_t addr, size_t size)
-{
-    rt_err_t result = RT_EOK;
-    uint32_t PAGEError = 0;
-
-    /*Variable used for Erase procedure*/
-    FLASH_EraseInitTypeDef EraseInitStruct;
-
-    if ((addr + size) > STM32_FLASH_END_ADDRESS)
-    {
-        LOG_E("ERROR: erase outrange flash size! addr is (0x%p)\n", (void *)(addr + size));
-        return -RT_EINVAL;
-    }
-
-    HAL_FLASH_Unlock();
-
-    /* Fill EraseInit structure*/
-    EraseInitStruct.TypeErase   = FLASH_TYPEERASE_PAGES;
-    EraseInitStruct.PageAddress = GetPage(addr);
-    EraseInitStruct.NbPages     = (size + FLASH_PAGE_SIZE - 1) / FLASH_PAGE_SIZE;
-
-    if (HAL_FLASHEx_Erase(&EraseInitStruct, &PAGEError) != HAL_OK)
-    {
-        result = -RT_ERROR;
-        goto __exit;
-    }
-
-__exit:
-    HAL_FLASH_Lock();
-
-    if (result != RT_EOK)
-    {
-        return result;
-    }
-
-    LOG_D("erase done: addr (0x%p), size %d", (void *)addr, size);
-    return size;
-}
-
-#if defined(PKG_USING_FAL)
-
-static int fal_flash_read(long offset, rt_uint8_t *buf, size_t size);
-static int fal_flash_write(long offset, const rt_uint8_t *buf, size_t size);
-static int fal_flash_erase(long offset, size_t size);
-
-const struct fal_flash_dev stm32_onchip_flash = { "onchip_flash", STM32_FLASH_START_ADRESS, STM32_FLASH_SIZE, FLASH_PAGE_SIZE, {NULL, fal_flash_read, fal_flash_write, fal_flash_erase} };
-
-static int fal_flash_read(long offset, rt_uint8_t *buf, size_t size)
-{
-    return stm32_flash_read(stm32_onchip_flash.addr + offset, buf, size);
-}
-
-static int fal_flash_write(long offset, const rt_uint8_t *buf, size_t size)
-{
-    return stm32_flash_write(stm32_onchip_flash.addr + offset, buf, size);
-}
-
-static int fal_flash_erase(long offset, size_t size)
-{
-    return stm32_flash_erase(stm32_onchip_flash.addr + offset, size);
-}
-
-#endif
-#endif /* BSP_USING_ON_CHIP_FLASH */
diff --git a/bsp/tm4c123bsp/libraries/Drivers/drv_gpio.c b/bsp/tm4c123bsp/libraries/Drivers/drv_gpio.c
index ab4f2ce6d8..7cdfaf91f9 100644
--- a/bsp/tm4c123bsp/libraries/Drivers/drv_gpio.c
+++ b/bsp/tm4c123bsp/libraries/Drivers/drv_gpio.c
@@ -1,56 +1,45 @@
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
+
+#include "drv_gpio.h"
 #include <rthw.h>
-#include <rtthread.h>
 #include <rtdevice.h>
-
+#include "drv_gpio.h"
 #include <stdint.h>
 #include <stdbool.h>
-#include "hw_memmap.h"
-#include "sysctl.h"
-#include "gpio.h"
-#include "pin_map.h"
-#include "interrupt.h"
-#include "rom_map.h"
-#include "drv_gpio.h"
-
+#include "inc/hw_memmap.h"
+#include "driverlib/sysctl.h"
+#include "driverlib/gpio.h"
+#include "driverlib/pin_map.h"
 
 #ifdef RT_USING_PIN
 
-static const struct pin_index pins[] = 
+static const struct pin_index pins[] =
 {
-    _TM4C_PIN(0 ,F, 0 ),
-    _TM4C_PIN(1 ,F, 1 ),
-    _TM4C_PIN(2 ,F, 2 ),
-    _TM4C_PIN(3 ,F, 3 ),
-    _TM4C_PIN(4 ,F, 4 )
+    _TM4C_PIN(0, F, 0),
+    _TM4C_PIN(1, F, 1),
+    _TM4C_PIN(2, F, 2),
+    _TM4C_PIN(3, F, 3),
+    _TM4C_PIN(4, F, 4)
 };
 
-
+/* this is pin_irq map, reserved for update */
 static struct rt_pin_irq_hdr pin_irq_hdr_tab[] =
 {
     {-1, 0, RT_NULL, RT_NULL},
-    {-1, 0, RT_NULL, RT_NULL},
-    {-1, 0, RT_NULL, RT_NULL},
-    {-1, 0, RT_NULL, RT_NULL},
-    {-1, 0, RT_NULL, RT_NULL},
-    {-1, 0, RT_NULL, RT_NULL},
-    {-1, 0, RT_NULL, RT_NULL},
-    {-1, 0, RT_NULL, RT_NULL},
-    {-1, 0, RT_NULL, RT_NULL},
-    {-1, 0, RT_NULL, RT_NULL},
-    {-1, 0, RT_NULL, RT_NULL},
-    {-1, 0, RT_NULL, RT_NULL},
-    {-1, 0, RT_NULL, RT_NULL},
-    {-1, 0, RT_NULL, RT_NULL},
-    {-1, 0, RT_NULL, RT_NULL},
-    {-1, 0, RT_NULL, RT_NULL}
 };
 
-
-static uint32_t pin_irq_enable_mask=0;
+static uint32_t pin_irq_enable_mask = 0;
 
 #define ITEM_NUM(items) sizeof(items) / sizeof(items[0])
-	
-	
+
 static const struct pin_index *get_pin(uint8_t pin)
 {
     const struct pin_index *index;
@@ -68,7 +57,6 @@ static const struct pin_index *get_pin(uint8_t pin)
     return index;
 };
 
-
 static void tm4c123_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode)
 {
     const struct pin_index *index;
@@ -77,104 +65,82 @@ static void tm4c123_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode)
     {
         return;
     }
-				
-		if(mode == PIN_MODE_INPUT)
-		{
+
+    if (mode == PIN_MODE_INPUT)
+    {
         GPIOPinTypeGPIOInput(index ->gpioBaseAddress, index->pin);
-		}
-		else if(mode == PIN_MODE_OUTPUT)
-		{
-			  GPIOPinTypeGPIOOutput(index->gpioBaseAddress, index->pin);
-		}
-		else if(mode == PIN_MODE_INPUT_PULLUP)
-		{
-				
-    //
-    // Make the pin(s) be inputs.
-    //
-				GPIODirModeSet(index->gpioBaseAddress, index->pin, GPIO_DIR_MODE_IN);
-    //
-    // Set the pad(s) for standard pullup operation.
-    //
-				GPIOPadConfigSet(index->gpioBaseAddress, index->pin, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU);
-		}
-		else if(mode == PIN_MODE_INPUT_PULLDOWN)
-		{		
-    //
-    // Make the pin(s) be inputs.
-    //
-				GPIODirModeSet(index->gpioBaseAddress, index->pin, GPIO_DIR_MODE_IN);
-    //
-    // Set the pad(s) for standard pulldown operation.
-    //
-				GPIOPadConfigSet(index->gpioBaseAddress, index->pin, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPD);
-		}
-		else if(mode == PIN_MODE_OUTPUT_OD)
-		{
-		//
-		// Set the pad(s) for standard push-pull operation.
-				GPIOPadConfigSet(index->gpioBaseAddress, index->pin, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_OD);
-		//
-		// Make the pin(s) be outputs.
-				GPIODirModeSet(index->gpioBaseAddress, index->pin, GPIO_DIR_MODE_OUT);
-		}
-		
+    }
+    else if (mode == PIN_MODE_OUTPUT)
+    {
+        GPIOPinTypeGPIOOutput(index->gpioBaseAddress, index->pin);
+    }
+    else if (mode == PIN_MODE_INPUT_PULLUP)
+    {
+        GPIODirModeSet(index->gpioBaseAddress, index->pin, GPIO_DIR_MODE_IN);
+        GPIOPadConfigSet(index->gpioBaseAddress, index->pin, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPU);
+    }
+    else if (mode == PIN_MODE_INPUT_PULLDOWN)
+    {
+        GPIODirModeSet(index->gpioBaseAddress, index->pin, GPIO_DIR_MODE_IN);
+        GPIOPadConfigSet(index->gpioBaseAddress, index->pin, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_STD_WPD);
+    }
+    else if (mode == PIN_MODE_OUTPUT_OD)
+    {
+        GPIOPadConfigSet(index->gpioBaseAddress, index->pin, GPIO_STRENGTH_2MA, GPIO_PIN_TYPE_OD);
+        GPIODirModeSet(index->gpioBaseAddress, index->pin, GPIO_DIR_MODE_OUT);
+    }
+
 }
 
 static void tm4c123_pin_write(rt_device_t dev, rt_base_t pin, rt_base_t ui8Val)
 {
     const struct pin_index *index;
-	  index = get_pin(pin);
-	  if( index == RT_NULL)
-		{
-			    return;
-		}
-		if(ui8Val)
-		{
-					GPIOPinWrite(index ->gpioBaseAddress, index->pin, index->pin );
-		}
-		else
-		{
-					GPIOPinWrite(index ->gpioBaseAddress, index->pin, 0 );
-		}		
+    index = get_pin(pin);
+    if (index == RT_NULL)
+    {
+        return;
+    }
+    if (ui8Val)
+    {
+        GPIOPinWrite(index ->gpioBaseAddress, index->pin, index->pin);
+    }
+    else
+    {
+        GPIOPinWrite(index ->gpioBaseAddress, index->pin, 0);
+    }
 }
 
-
 static int tm4c123_pin_read(rt_device_t dev, rt_base_t pin)
 {
     const struct pin_index *index;
-		int value = 0;
-	  
-		index = get_pin(pin);
-	  if( index == RT_NULL)
-		{
-			    return value;
-		}
-	  value = GPIOPinRead(index ->gpioBaseAddress , index ->pin );
-	
+    int value = 0;
+
+    index = get_pin(pin);
+    if (index == RT_NULL)
+    {
+        return value;
+    }
+    value = GPIOPinRead(index ->gpioBaseAddress, index ->pin);
+
     return value;
 }
 
-static rt_err_t tm4c123_pin_attach_irq(rt_device_t device, rt_int32_t pin, rt_uint32_t mode, void (*hdr)(void *args), void *args )
+static rt_err_t tm4c123_pin_attach_irq(rt_device_t device, rt_int32_t pin, rt_uint32_t mode, void (*hdr)(void *args), void *args)
 {
-    //const struct pin_index *index;
-	
+    /* this is interface for pin_irq, reserved for update. */
     return RT_EOK;
 }
 
 static rt_err_t tm4c123_pin_dettach_irq(rt_device_t device, rt_int32_t pin)
 {
-    //const struct pin_index *index;
-	
+    /* this is interface for pin_irq, reserved for update. */
     return RT_EOK;
 }
 
-
 static rt_err_t tm4c123_pin_irq_enable(rt_device_t device, rt_base_t pin,
-                                     rt_uint32_t enabled)
+                                       rt_uint32_t enabled)
 {
-    //const struct pin_index *index;
-    //const struct pin_irq_map *irqmap;
+    /* this is interface for pin_irq_enable, reserved for update. */
     return RT_EOK;
 }
 
@@ -197,3 +163,5 @@ int rt_hw_pin_init(void)
 INIT_BOARD_EXPORT(rt_hw_pin_init);
 
 #endif   /*RT_USING_PIN*/
+
+/************************** end of file ******************/
\ No newline at end of file
diff --git a/bsp/tm4c123bsp/libraries/Drivers/drv_gpio.h b/bsp/tm4c123bsp/libraries/Drivers/drv_gpio.h
index 2864c8efa2..3b1bb46cb4 100644
--- a/bsp/tm4c123bsp/libraries/Drivers/drv_gpio.h
+++ b/bsp/tm4c123bsp/libraries/Drivers/drv_gpio.h
@@ -1,19 +1,28 @@
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
+
 #ifndef _DRV_GPIO_H_
 #define _DRV_GPIO_H_
 
 #include <stdint.h>
 #include <rtthread.h>
 
-#define _TM4C_PIN(index, gpioport, gpio_index)                          \
-        {                                                               \
-				     index, GPIO_PORT##gpioport##_BASE, GPIO_PIN_##gpio_index   \
-				}
-				
-#define _TM4C_PIN_RESERVE                                              \
-        {                                                               \
-				    -1, 0, 0                                                    \
-				}
-				
+#define _TM4C_PIN(index, gpioport, gpio_index)                           \
+        {                                                                \
+             index, GPIO_PORT##gpioport##_BASE, GPIO_PIN_##gpio_index    \
+        }
+
+#define _TM4C_PIN_RESERVE                                                \
+        {                                                                \
+             -1, 0, 0                                                    \
+        }
 
 /* TM4C123 GPIO driver*/
 struct pin_index
@@ -27,3 +36,4 @@ extern int rt_hw_pin_init(void);
 
 #endif  /*_DRV_GPIO_H_*/
 
+/************************** end of file ******************/
\ No newline at end of file
diff --git a/bsp/tm4c123bsp/libraries/Drivers/drv_log.h b/bsp/tm4c123bsp/libraries/Drivers/drv_log.h
index 7e0bfee5b4..ea5e648429 100644
--- a/bsp/tm4c123bsp/libraries/Drivers/drv_log.h
+++ b/bsp/tm4c123bsp/libraries/Drivers/drv_log.h
@@ -13,15 +13,15 @@
  */
 
 #ifndef LOG_TAG
-#define DBG_TAG               "drv"
+    #define DBG_TAG               "drv"
 #else
-#define DBG_TAG               LOG_TAG
+    #define DBG_TAG               LOG_TAG
 #endif /* LOG_TAG */
 
 #ifdef DRV_DEBUG
-#define DBG_LVL               DBG_LOG
+    #define DBG_LVL               DBG_LOG
 #else
-#define DBG_LVL               DBG_INFO
+    #define DBG_LVL               DBG_INFO
 #endif /* DRV_DEBUG */
 
 #include <rtdbg.h>
diff --git a/bsp/tm4c123bsp/libraries/Drivers/drv_pwm.c b/bsp/tm4c123bsp/libraries/Drivers/drv_pwm.c
index 4b55157e05..dbd69fdb4e 100644
--- a/bsp/tm4c123bsp/libraries/Drivers/drv_pwm.c
+++ b/bsp/tm4c123bsp/libraries/Drivers/drv_pwm.c
@@ -1,22 +1,28 @@
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
+
 #include "drv_pwm.h"
 #include <stdint.h>
 #include <stdbool.h>
-#include <string.h>
-#include "hw_memmap.h"
-#include "pwm.h"
-#include "sysctl.h"
-
-
+#include "inc/hw_memmap.h"
+#include "driverlib/pwm.h"
+#include "driverlib/sysctl.h"
 
 #ifdef  RT_USING_PWM
 #include "pwm_config.h"
 #include "tm4c123_config.h"
-
+#include <string.h>
 
 #define LOG_TAG             "drv.pwm"
 #include <drv_log.h>
 
-
 enum
 {
 #ifdef BSP_USING_PWM0
@@ -43,7 +49,6 @@ enum
 #ifdef BSP_USING_PWM7
     PWM7_INDEX,
 #endif
-
 };
 
 static struct tm4c123_pwm_config pwm_config[] =
@@ -51,31 +56,24 @@ static struct tm4c123_pwm_config pwm_config[] =
 #ifdef BSP_USING_PWM0
     PWM0_CONFIG,
 #endif
-	
 #ifdef BSP_USING_PWM1
     PWM1_CONFIG,
 #endif
-
 #ifdef BSP_USING_PWM2
     PWM2_CONFIG,
 #endif
-
 #ifdef BSP_USING_PWM3
     PWM3_CONFIG,
 #endif
-
 #ifdef BSP_USING_PWM4
     PWM4_CONFIG,
 #endif
-
 #ifdef BSP_USING_PWM5
     PWM5_CONFIG,
 #endif
-
 #ifdef BSP_USING_PWM6
     PWM6_CONFIG,
 #endif
-
 #ifdef BSP_USING_PWM7
     PWM7_CONFIG,
 #endif
@@ -83,254 +81,245 @@ static struct tm4c123_pwm_config pwm_config[] =
 
 static struct tm4c123_pwm pwm_obj[sizeof(pwm_config) / sizeof(pwm_config[0])] = {0};
 
-
 static rt_err_t tm4c123_pwm_control(struct rt_device_pwm *device, int cmd, void *arg);
 static struct rt_pwm_ops drv_ops =
 {
     tm4c123_pwm_control
 };
 
-static rt_err_t drv_pwm_enable(char* name, struct rt_pwm_configuration *configuration, rt_bool_t enable)
+static rt_err_t drv_pwm_enable(char *name, struct rt_pwm_configuration *configuration, rt_bool_t enable)
 {
-    /* Converts the channel number to the channel number of Hal library */
-	   
-	  int  num = name[3]-0x30;
-    
+
+    int  num = name[3] - 0x30;
+
     if (!enable)
     {
-        if( num<=3 )
-				{  
-					  PWMOutputState(PWM0_BASE, PWM_OUT_0_BIT<<(num*2+(configuration->channel-1)), false);
-				}         
+        if (num <= 3)
+        {
+            /* Converts the channel number to the channel number of Hal library */
+            PWMOutputState(PWM0_BASE, PWM_OUT_0_BIT << (num * 2 + (configuration->channel - 1)), false);
+        }
         else
-				{
-					  PWMOutputState(PWM1_BASE, PWM_OUT_0_BIT<<((num%4)*2+(configuration->channel-1)), false);
-				}					     									
+        {
+            PWMOutputState(PWM1_BASE, PWM_OUT_0_BIT << ((num % 4) * 2 + (configuration->channel - 1)), false);
+        }
     }
     else
     {
-			  if( num<=3 )
-				{  
-					  PWMOutputState(PWM0_BASE, PWM_OUT_0_BIT<<(num*2+(configuration->channel-1)), true);
-				}         
+        if (num <= 3)
+        {
+            PWMOutputState(PWM0_BASE, PWM_OUT_0_BIT << (num * 2 + (configuration->channel - 1)), true);
+        }
         else
-				{
-					  PWMOutputState(PWM1_BASE, PWM_OUT_0_BIT<<((num%4)*2+(configuration->channel-1)), true);
-				}			
+        {
+            PWMOutputState(PWM1_BASE, PWM_OUT_0_BIT << ((num % 4) * 2 + (configuration->channel - 1)), true);
+        }
     }
 
     return RT_EOK;
 }
 
-static rt_err_t drv_pwm_get(char* name, struct rt_pwm_configuration *configuration)
+static rt_err_t drv_pwm_get(char *name, struct rt_pwm_configuration *configuration)
 {
 
-    switch(name[3])
-		{
-			 case  '0':
-			   configuration->period = PWMGenPeriodGet(PWM0_BASE, PWM_GEN_0);
-			   configuration->pulse= PWMPulseWidthGet(PWM0_BASE, PWM_OUT_0+(uint32_t)(configuration->channel-1));
-				 break;
-			case  '1':
-				 configuration->period = PWMGenPeriodGet(PWM0_BASE, PWM_GEN_1);
-			   configuration->pulse= PWMPulseWidthGet(PWM0_BASE, PWM_OUT_2+(uint32_t)(configuration->channel-1));
-				 break;
-			case  '2':
-         configuration->period = PWMGenPeriodGet(PWM0_BASE, PWM_GEN_2);
-			   configuration->pulse= PWMPulseWidthGet(PWM0_BASE, PWM_OUT_4+(uint32_t)(configuration->channel-1));
-				 break;
-			case  '3':
-				 configuration->period = PWMGenPeriodGet(PWM0_BASE, PWM_GEN_3);
-			   configuration->pulse= PWMPulseWidthGet(PWM0_BASE, PWM_OUT_6+(uint32_t)(configuration->channel-1));
-				 break;
-			case  '4':
-			   configuration->period = PWMGenPeriodGet(PWM1_BASE, PWM_GEN_0);
-			   configuration->pulse= PWMPulseWidthGet(PWM1_BASE, PWM_OUT_0+(uint32_t)(configuration->channel-1));
-				 break;
-			case  '5':
-				 configuration->period = PWMGenPeriodGet(PWM1_BASE, PWM_GEN_1);
-			   configuration->pulse= PWMPulseWidthGet(PWM1_BASE, PWM_OUT_2+(uint32_t)(configuration->channel-1));
-				 break;
-			case  '6':
-         configuration->period = PWMGenPeriodGet(PWM1_BASE, PWM_GEN_2);
-			   configuration->pulse= PWMPulseWidthGet(PWM1_BASE, PWM_OUT_4+(uint32_t)(configuration->channel-1));
-				 break;	
-			case  '7':
-				 configuration->period = PWMGenPeriodGet(PWM1_BASE, PWM_GEN_3);
-			   configuration->pulse= PWMPulseWidthGet(PWM1_BASE, PWM_OUT_6+(uint32_t)(configuration->channel-1));
-				 break;			
-			default:			 
-				 break;
-		}
-	  return RT_EOK;	 
+    switch (name[3])
+    {
+    case  '0':
+        configuration->period = PWMGenPeriodGet(PWM0_BASE, PWM_GEN_0);
+        configuration->pulse = PWMPulseWidthGet(PWM0_BASE, PWM_OUT_0 + (uint32_t)(configuration->channel - 1));
+        break;
+    case  '1':
+        configuration->period = PWMGenPeriodGet(PWM0_BASE, PWM_GEN_1);
+        configuration->pulse = PWMPulseWidthGet(PWM0_BASE, PWM_OUT_2 + (uint32_t)(configuration->channel - 1));
+        break;
+    case  '2':
+        configuration->period = PWMGenPeriodGet(PWM0_BASE, PWM_GEN_2);
+        configuration->pulse = PWMPulseWidthGet(PWM0_BASE, PWM_OUT_4 + (uint32_t)(configuration->channel - 1));
+        break;
+    case  '3':
+        configuration->period = PWMGenPeriodGet(PWM0_BASE, PWM_GEN_3);
+        configuration->pulse = PWMPulseWidthGet(PWM0_BASE, PWM_OUT_6 + (uint32_t)(configuration->channel - 1));
+        break;
+    case  '4':
+        configuration->period = PWMGenPeriodGet(PWM1_BASE, PWM_GEN_0);
+        configuration->pulse = PWMPulseWidthGet(PWM1_BASE, PWM_OUT_0 + (uint32_t)(configuration->channel - 1));
+        break;
+    case  '5':
+        configuration->period = PWMGenPeriodGet(PWM1_BASE, PWM_GEN_1);
+        configuration->pulse = PWMPulseWidthGet(PWM1_BASE, PWM_OUT_2 + (uint32_t)(configuration->channel - 1));
+        break;
+    case  '6':
+        configuration->period = PWMGenPeriodGet(PWM1_BASE, PWM_GEN_2);
+        configuration->pulse = PWMPulseWidthGet(PWM1_BASE, PWM_OUT_4 + (uint32_t)(configuration->channel - 1));
+        break;
+    case  '7':
+        configuration->period = PWMGenPeriodGet(PWM1_BASE, PWM_GEN_3);
+        configuration->pulse = PWMPulseWidthGet(PWM1_BASE, PWM_OUT_6 + (uint32_t)(configuration->channel - 1));
+        break;
+    default:
+        break;
+    }
+    return RT_EOK;
 }
 
 static rt_err_t drv_pwm_set(char *name, struct rt_pwm_configuration *configuration)
 {
-	  
-	  uint32_t  sysPwmClock = SysCtlPWMClockGet();
-	  switch(name[3])
-		{
-			 case  '0':
-			    PWMGenPeriodSet(PWM0_BASE, PWM_GEN_0, configuration->period/1000*(sysPwmClock/1000000));    // t(s)/(1/f) = ticks   ns/1000/1000000
-			    PWMPulseWidthSet(PWM0_BASE, PWM_OUT_0+(uint32_t)(configuration->channel-1),configuration->pulse/1000*(sysPwmClock/1000000));
-			    PWMGenEnable(PWM0_BASE, PWM_GEN_0);
-				break;
-			case  '1':
-			    PWMGenPeriodSet(PWM0_BASE, PWM_GEN_1, configuration->period/1000*(sysPwmClock/1000000));
-			    PWMPulseWidthSet(PWM0_BASE, PWM_OUT_0+(uint32_t)(configuration->channel-1),configuration->pulse/1000*(sysPwmClock/1000000));
-				PWMGenEnable(PWM0_BASE, PWM_GEN_1);
-			    break;
-			case  '2':
-			    PWMGenPeriodSet(PWM0_BASE, PWM_GEN_2, configuration->period/1000*(sysPwmClock/1000000));
-			    PWMPulseWidthSet(PWM0_BASE, PWM_OUT_0+(uint32_t)(configuration->channel-1),configuration->pulse/1000*(sysPwmClock/1000000));
-			    PWMGenEnable(PWM0_BASE, PWM_GEN_2);
-				break;
-			case  '3':
-			    PWMGenPeriodSet(PWM0_BASE, PWM_GEN_3, configuration->period/1000*(sysPwmClock/1000000));
-			    PWMPulseWidthSet(PWM0_BASE, PWM_OUT_0+(uint32_t)(configuration->channel-1),configuration->pulse/1000*(sysPwmClock/1000000));
-			    PWMGenEnable(PWM0_BASE, PWM_GEN_3);
-				break;
-			case  '4':
-			    PWMGenPeriodSet(PWM1_BASE, PWM_GEN_0, configuration->period/1000*(sysPwmClock/1000000));
-			    PWMPulseWidthSet(PWM1_BASE, PWM_OUT_0+(uint32_t)(configuration->channel-1),configuration->pulse/1000*(sysPwmClock/1000000));
-			    PWMGenEnable(PWM1_BASE, PWM_GEN_0);
-				break;
-			case  '5':
-			    PWMGenPeriodSet(PWM1_BASE, PWM_GEN_1, configuration->period/1000*(sysPwmClock/1000000));
-			    PWMPulseWidthSet(PWM1_BASE, PWM_OUT_2+(uint32_t)(configuration->channel-1),configuration->pulse/1000*(sysPwmClock/1000000));
-			    PWMGenEnable(PWM1_BASE, PWM_GEN_1);
-				break;
-			case  '6':
-			    PWMGenPeriodSet(PWM1_BASE, PWM_GEN_2, configuration->period/1000*(sysPwmClock/1000000));
-			    PWMPulseWidthSet(PWM1_BASE, PWM_OUT_4+(uint32_t)(configuration->channel-1),configuration->pulse/1000*(sysPwmClock/1000000));
-			    PWMGenEnable(PWM1_BASE, PWM_GEN_2);
-				break;	
-			case  '7':
-			    PWMGenPeriodSet(PWM1_BASE, PWM_GEN_3, configuration->period/1000*(sysPwmClock/1000000));
-			    PWMPulseWidthSet(PWM1_BASE, PWM_OUT_6+(uint32_t)(configuration->channel-1),configuration->pulse/1000*(sysPwmClock/1000000));
-			    PWMGenEnable(PWM1_BASE, PWM_GEN_3);
-				break;			
-			default:			 
-				break;
-		}
 
-	  return RT_EOK;	  
+    uint32_t  sysPwmClock = SysCtlPWMClockGet();
+    switch (name[3])
+    {
+    case  '0':
+        PWMGenPeriodSet(PWM0_BASE, PWM_GEN_0, configuration->period / 1000 * (sysPwmClock / 1000000)); // t(s)/(1/f) = ticks   ns/1000/1000000
+        PWMPulseWidthSet(PWM0_BASE, PWM_OUT_0 + (uint32_t)(configuration->channel - 1), configuration->pulse / 1000 * (sysPwmClock / 1000000));
+        PWMGenEnable(PWM0_BASE, PWM_GEN_0);
+        break;
+    case  '1':
+        PWMGenPeriodSet(PWM0_BASE, PWM_GEN_1, configuration->period / 1000 * (sysPwmClock / 1000000));
+        PWMPulseWidthSet(PWM0_BASE, PWM_OUT_0 + (uint32_t)(configuration->channel - 1), configuration->pulse / 1000 * (sysPwmClock / 1000000));
+        PWMGenEnable(PWM0_BASE, PWM_GEN_1);
+        break;
+    case  '2':
+        PWMGenPeriodSet(PWM0_BASE, PWM_GEN_2, configuration->period / 1000 * (sysPwmClock / 1000000));
+        PWMPulseWidthSet(PWM0_BASE, PWM_OUT_0 + (uint32_t)(configuration->channel - 1), configuration->pulse / 1000 * (sysPwmClock / 1000000));
+        PWMGenEnable(PWM0_BASE, PWM_GEN_2);
+        break;
+    case  '3':
+        PWMGenPeriodSet(PWM0_BASE, PWM_GEN_3, configuration->period / 1000 * (sysPwmClock / 1000000));
+        PWMPulseWidthSet(PWM0_BASE, PWM_OUT_0 + (uint32_t)(configuration->channel - 1), configuration->pulse / 1000 * (sysPwmClock / 1000000));
+        PWMGenEnable(PWM0_BASE, PWM_GEN_3);
+        break;
+    case  '4':
+        PWMGenPeriodSet(PWM1_BASE, PWM_GEN_0, configuration->period / 1000 * (sysPwmClock / 1000000));
+        PWMPulseWidthSet(PWM1_BASE, PWM_OUT_0 + (uint32_t)(configuration->channel - 1), configuration->pulse / 1000 * (sysPwmClock / 1000000));
+        PWMGenEnable(PWM1_BASE, PWM_GEN_0);
+        break;
+    case  '5':
+        PWMGenPeriodSet(PWM1_BASE, PWM_GEN_1, configuration->period / 1000 * (sysPwmClock / 1000000));
+        PWMPulseWidthSet(PWM1_BASE, PWM_OUT_2 + (uint32_t)(configuration->channel - 1), configuration->pulse / 1000 * (sysPwmClock / 1000000));
+        PWMGenEnable(PWM1_BASE, PWM_GEN_1);
+        break;
+    case  '6':
+        PWMGenPeriodSet(PWM1_BASE, PWM_GEN_2, configuration->period / 1000 * (sysPwmClock / 1000000));
+        PWMPulseWidthSet(PWM1_BASE, PWM_OUT_4 + (uint32_t)(configuration->channel - 1), configuration->pulse / 1000 * (sysPwmClock / 1000000));
+        PWMGenEnable(PWM1_BASE, PWM_GEN_2);
+        break;
+    case  '7':
+        PWMGenPeriodSet(PWM1_BASE, PWM_GEN_3, configuration->period / 1000 * (sysPwmClock / 1000000));
+        PWMPulseWidthSet(PWM1_BASE, PWM_OUT_6 + (uint32_t)(configuration->channel - 1), configuration->pulse / 1000 * (sysPwmClock / 1000000));
+        PWMGenEnable(PWM1_BASE, PWM_GEN_3);
+        break;
+    default:
+        break;
+    }
+
+    return RT_EOK;
 }
 
 static rt_err_t tm4c123_pwm_control(struct rt_device_pwm *device, int cmd, void *arg)
-	
+
 {
     struct rt_pwm_configuration *configuration = (struct rt_pwm_configuration *)arg;
-	
-  
+
     switch (cmd)
     {
     case PWM_CMD_ENABLE:
-         return drv_pwm_enable(device->parent.parent.name, configuration, RT_TRUE);
+        return drv_pwm_enable(device->parent.parent.name, configuration, RT_TRUE);
     case PWM_CMD_DISABLE:
-         return drv_pwm_enable(device->parent.parent.name, configuration, RT_FALSE);
+        return drv_pwm_enable(device->parent.parent.name, configuration, RT_FALSE);
     case PWM_CMD_SET:
-         return drv_pwm_set(device->parent.parent.name, configuration);
+        return drv_pwm_set(device->parent.parent.name, configuration);
     case PWM_CMD_GET:
-         return drv_pwm_get(device->parent.parent.name, configuration);
+        return drv_pwm_get(device->parent.parent.name, configuration);
     default:
         return RT_EINVAL;
     }
 }
 
-
 static rt_err_t tm4c123_hw_pwm_init(struct tm4c123_pwm *device)
 {
-		rt_err_t result = RT_EOK;
-	  RT_ASSERT(device != RT_NULL);
-	 
-	
-	  pwm_hw_config();
-	  
-	  switch( device->config->name[3])
-		{
-			case  '0':
-				 PWMGenConfigure(PWM0_BASE, PWM_GEN_0, device->config->counterMode |
-                     device->config->syncMode);
-				 break;
-			case  '1':
-				 PWMGenConfigure(PWM0_BASE, PWM_GEN_1, device->config->counterMode |
-                     device->config->syncMode);
-				 break;
-			case  '2':
-				 PWMGenConfigure(PWM0_BASE, PWM_GEN_2, device->config->counterMode |
-                     device->config->syncMode);
-				 break;
-			case  '3':
-				 PWMGenConfigure(PWM0_BASE, PWM_GEN_3, device->config->counterMode |
-                     device->config->syncMode);
-				 break;
-			case  '4':
-				 PWMGenConfigure(PWM1_BASE, PWM_GEN_0, device->config->counterMode |
-                     device->config->syncMode);
-				 break;
-			case  '5':
-				 PWMGenConfigure(PWM1_BASE, PWM_GEN_1, device->config->counterMode |
-                     device->config->syncMode);
-				 break;
-			case  '6':
-				 PWMGenConfigure(PWM1_BASE, PWM_GEN_2, device->config->counterMode |
-                     device->config->syncMode);
-				 break;	
-			case  '7':
-				 PWMGenConfigure(PWM1_BASE, PWM_GEN_3, device->config->counterMode |
-                     device->config->syncMode);
-				 break;			
-			default:
-				 LOG_E("%s PWMGenConfigure failed", device->config->name);
-         result = -RT_ERROR;
-         return result;				 
-				
-		}
-	  	  	 
-    return result;
-}
+    rt_err_t result = RT_EOK;
+    RT_ASSERT(device != RT_NULL);
 
+    pwm_hw_config();
+    switch (device->config->name[3])
+    {
+    case  '0':
+        PWMGenConfigure(PWM0_BASE, PWM_GEN_0, device->config->counterMode |
+                        device->config->syncMode);
+        break;
+    case  '1':
+        PWMGenConfigure(PWM0_BASE, PWM_GEN_1, device->config->counterMode |
+                        device->config->syncMode);
+        break;
+    case  '2':
+        PWMGenConfigure(PWM0_BASE, PWM_GEN_2, device->config->counterMode |
+                        device->config->syncMode);
+        break;
+    case  '3':
+        PWMGenConfigure(PWM0_BASE, PWM_GEN_3, device->config->counterMode |
+                        device->config->syncMode);
+        break;
+    case  '4':
+        PWMGenConfigure(PWM1_BASE, PWM_GEN_0, device->config->counterMode |
+                        device->config->syncMode);
+        break;
+    case  '5':
+        PWMGenConfigure(PWM1_BASE, PWM_GEN_1, device->config->counterMode |
+                        device->config->syncMode);
+        break;
+    case  '6':
+        PWMGenConfigure(PWM1_BASE, PWM_GEN_2, device->config->counterMode |
+                        device->config->syncMode);
+        break;
+    case  '7':
+        PWMGenConfigure(PWM1_BASE, PWM_GEN_3, device->config->counterMode |
+                        device->config->syncMode);
+        break;
+    default:
+        LOG_E("%s PWMGenConfigure failed", device->config->name);
+        result = -RT_ERROR;
+        return result;
+    }
 
+    return result;
+}
 
 int rt_hw_pwm_init(void)
 {
-	int i = 0;
-	rt_size_t obj_num = sizeof(pwm_obj) / sizeof(struct tm4c123_pwm);
-	rt_err_t result = RT_EOK;
-	  
-	
-	for(i=0 ; i< obj_num;i++)
-	{
-		 
-		    pwm_obj[i].config = &pwm_config[i];
-		    pwm_obj[i].pwm_device.ops = &drv_ops;		  
-		  /*pwm_init*/
-		    if(tm4c123_hw_pwm_init(&pwm_obj[i])!= RT_EOK)
-			{
-			    LOG_E("%s init failed", pwm_obj[i].config->name);
+    int i = 0;
+    rt_size_t obj_num = sizeof(pwm_obj) / sizeof(struct tm4c123_pwm);
+    rt_err_t result = RT_EOK;
+
+    for (i = 0 ; i < obj_num; i++)
+    {
+        pwm_obj[i].config = &pwm_config[i];
+        pwm_obj[i].pwm_device.ops = &drv_ops;
+        /*pwm_init*/
+        if (tm4c123_hw_pwm_init(&pwm_obj[i]) != RT_EOK)
+        {
+            LOG_E("%s init failed", pwm_obj[i].config->name);
+            result = -RT_ERROR;
+            return result;
+        }
+        else
+        {
+            LOG_D("%s init success", pwm_obj[i].config->name);
+
+            /* register pwm device */
+            if (rt_device_pwm_register(&pwm_obj[i].pwm_device, pwm_obj[i].config->name, &drv_ops, RT_NULL) == RT_EOK)
+            {
+                LOG_D("%s register success", pwm_obj[i].config->name);
+            }
+            else
+            {
+                LOG_E("%s register failed", pwm_obj[i].config->name);
                 result = -RT_ERROR;
-                return result;
-			}
-			else
-			{
-				    LOG_D("%s init success", pwm_obj[i].config->name);
-				
-				    /* register pwm device */
-					if (rt_device_pwm_register(&pwm_obj[i].pwm_device, pwm_obj[i].config->name, &drv_ops,RT_NULL) == RT_EOK)
-					{
-						LOG_D("%s register success", pwm_obj[i].config->name);
-					}
-					else
-					{
-						LOG_E("%s register failed", pwm_obj[i].config->name);
-						result = -RT_ERROR;
-					}
-			}
-	 }
-	return result;
+            }
+        }
+    }
+    return result;
 }
 
-#endif
+#endif /* RT_USING_PWM */
 
+/************************** end of file ******************/
\ No newline at end of file
diff --git a/bsp/tm4c123bsp/libraries/Drivers/drv_pwm.h b/bsp/tm4c123bsp/libraries/Drivers/drv_pwm.h
index 07d1ee47be..29ce1899bd 100644
--- a/bsp/tm4c123bsp/libraries/Drivers/drv_pwm.h
+++ b/bsp/tm4c123bsp/libraries/Drivers/drv_pwm.h
@@ -1,28 +1,36 @@
-#ifndef _DRV_PWM_H_
-#define _DRV_PWM_H_
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
 
+#ifndef __DRV_PWM_H__
+#define __DRV_PWM_H__
 
 #include<rtdevice.h>
 #include<rthw.h>
 
-
 struct tm4c123_pwm
 {
-	struct tm4c123_pwm_config *config;
-	struct rt_device_pwm  pwm_device;
+    struct tm4c123_pwm_config *config;
+    struct rt_device_pwm  pwm_device;
 };
 
 /* tm4c123 config class */
 struct tm4c123_pwm_config
 {
-	rt_uint8_t channel;
-	char *name;
-	uint32_t   counterMode;
-	uint32_t   syncMode;
+    rt_uint8_t channel;
+    char *name;
+    uint32_t   counterMode;
+    uint32_t   syncMode;
 };
 
-
 int rt_hw_pwm_init(void);
 
+#endif /*__DRV_PWM_H__*/
 
-#endif /*_DRV_PWM_H_*/
+/************************** end of file ******************/
\ No newline at end of file
diff --git a/bsp/tm4c123bsp/libraries/Drivers/drv_spi.c b/bsp/tm4c123bsp/libraries/Drivers/drv_spi.c
index 6a35c769a8..d604c21993 100644
--- a/bsp/tm4c123bsp/libraries/Drivers/drv_spi.c
+++ b/bsp/tm4c123bsp/libraries/Drivers/drv_spi.c
@@ -1,17 +1,24 @@
-#include "drv_spi.h"
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
 
+#include "drv_spi.h"
 #include <stdint.h>
 #include <stdbool.h>
-#include <string.h>
-#include "hw_memmap.h"
-#include "ssi.h"
-#include "gpio.h"
-#include "sysctl.h"
-
+#include "inc/hw_memmap.h"
+#include "driverlib/ssi.h"
+#include "driverlib/gpio.h"
+#include "driverlib/sysctl.h"
 
 #ifdef RT_USING_SPI
 
-#if defined(BSP_USING_SPI0) || defined(BSP_USING_SPI1) || defined(BSP_USING_SPI2) || defined(BSP_USING_SPI3) 
+#if defined(BSP_USING_SPI0) || defined(BSP_USING_SPI1) || defined(BSP_USING_SPI2) || defined(BSP_USING_SPI3)
 /* this driver can be disabled at menuconfig → RT-Thread Components → Device Drivers */
 #include "tm4c123_config.h"
 #include "spi_config.h"
@@ -21,7 +28,6 @@
 #define LOG_TAG              "drv.spi"
 #include <drv_log.h>
 
-
 enum
 {
 #ifdef BSP_USING_SPI0
@@ -64,11 +70,11 @@ static rt_err_t tm4c123_spi_configure(struct tm4c123_spi *spi_drv, struct rt_spi
 {
     RT_ASSERT(spi_drv != RT_NULL);
     RT_ASSERT(cfg != RT_NULL);
-    
-    uint32_t ui32Protocol,ui32Mode;
-    uint32_t ui32BitRate = (uint32_t)cfg->max_hz; 
+
+    uint32_t ui32Protocol, ui32Mode;
+    uint32_t ui32BitRate = (uint32_t)cfg->max_hz;
     uint32_t ui32DataWidth = (uint32_t)cfg->data_width;
-	  uint32_t pui32DataRx[1];
+    uint32_t pui32DataRx[1];
     rt_uint8_t   ui8Protocol = 0;
 
     if (cfg->mode & RT_SPI_SLAVE)
@@ -96,36 +102,35 @@ static rt_err_t tm4c123_spi_configure(struct tm4c123_spi *spi_drv, struct rt_spi
     else
     {
         ui8Protocol += 0;
-    } 
+    }
 
-    switch( ui8Protocol)
+    switch (ui8Protocol)
     {
-        case 0:
-            ui32Protocol =  SSI_FRF_MOTO_MODE_0;
-            break; 
-        case 1:
-            ui32Protocol =  SSI_FRF_MOTO_MODE_1;
-            break;
-        case 2:
-            ui32Protocol =  SSI_FRF_MOTO_MODE_2;
-            break;
-        case 3:
-            ui32Protocol =  SSI_FRF_MOTO_MODE_3;
-            break;
-        default:
-            ui32Protocol =  SSI_FRF_MOTO_MODE_0;
-            break;           
+    case 0:
+        ui32Protocol =  SSI_FRF_MOTO_MODE_0;
+        break;
+    case 1:
+        ui32Protocol =  SSI_FRF_MOTO_MODE_1;
+        break;
+    case 2:
+        ui32Protocol =  SSI_FRF_MOTO_MODE_2;
+        break;
+    case 3:
+        ui32Protocol =  SSI_FRF_MOTO_MODE_3;
+        break;
+    default:
+        ui32Protocol =  SSI_FRF_MOTO_MODE_0;
+        break;
     }
 
     SSIConfigSetExpClk(spi_drv->config->base, SysCtlClockGet(), ui32Protocol,
                        ui32Mode, ui32BitRate, ui32DataWidth);
 
-    LOG_D("ssiclk freq: %d, SPI limiting freq: %d",SysCtlClockGet(),cfg->max_hz);
-    
-    /* DMA configuration */
+    LOG_D("ssiclk freq: %d, SPI limiting freq: %d", SysCtlClockGet(), cfg->max_hz);
+
     SSIEnable(spi_drv->config->base);
 
-    while(SSIDataGetNonBlocking(SSI0_BASE, &pui32DataRx[0]))
+    while (SSIDataGetNonBlocking(SSI0_BASE, &pui32DataRx[0]))
     {
     }
 
@@ -140,9 +145,9 @@ static rt_uint32_t spixfer(struct rt_spi_device *device, struct rt_spi_message *
     rt_size_t message_length;
     rt_uint8_t *recv_buf;
     const rt_uint8_t *send_buf;
-    uint32_t  ReadData=0;
+    uint32_t  ReadData = 0;
     int    i = 0;
-    
+
     RT_ASSERT(device != RT_NULL);
     RT_ASSERT(device->bus != RT_NULL);
     RT_ASSERT(device->bus->parent.user_data != RT_NULL);
@@ -164,27 +169,27 @@ static rt_uint32_t spixfer(struct rt_spi_device *device, struct rt_spi_message *
 
     message_length = message->length;
     recv_buf = message->recv_buf;
-    send_buf = message->send_buf; 
+    send_buf = message->send_buf;
 
     if (message->send_buf && message->recv_buf)
     {
-        for(i=0; i< message_length; i++)
+        for (i = 0; i < message_length; i++)
         {
             SSIDataPut(spi_drv->config->base, (uint32_t)send_buf[i]);
-            while(SSIBusy(spi_drv->config->base))
+            while (SSIBusy(spi_drv->config->base))
             {
             }
             SSIDataGet(spi_drv->config->base, &ReadData);
             recv_buf[i] = (unsigned char)ReadData;
         }
-    
+
     }
     else if (message->send_buf)
     {
-        for(i=0; i< message_length; i++)
+        for (i = 0; i < message_length; i++)
         {
             SSIDataPut(spi_drv->config->base, (uint32_t)send_buf[i]);
-            while(SSIBusy(spi_drv->config->base))
+            while (SSIBusy(spi_drv->config->base))
             {
             }
             SSIDataGet(spi_drv->config->base, &ReadData);
@@ -192,19 +197,19 @@ static rt_uint32_t spixfer(struct rt_spi_device *device, struct rt_spi_message *
     }
     else
     {
-        for(i=0; i< message_length; i++)
+        for (i = 0; i < message_length; i++)
         {
             SSIDataPut(spi_drv->config->base, (uint32_t)0xff);
-            while(SSIBusy(spi_drv->config->base))
+            while (SSIBusy(spi_drv->config->base))
             {
             }
             SSIDataGet(spi_drv->config->base, &ReadData);
             recv_buf[i] = (unsigned char)ReadData;
-        }  
+        }
     }
 
     LOG_D("%s transfer done", spi_drv->config->bus_name);
-  
+
     if (message->cs_release)
     {
         GPIOPinWrite(cs->portbase, cs->GPIO_Pin, cs->GPIO_Pin);
@@ -254,7 +259,7 @@ static int rt_hw_spi_bus_init(void)
 /**
   * Attach the spi device to SPI bus, this function must be used after initialization.
   */
-rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name, uint32_t portindex ,uint32_t cs_gpiobase, uint32_t cs_gpio_pin)
+rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name, uint32_t portindex, uint32_t cs_gpiobase, uint32_t cs_gpio_pin)
 {
     RT_ASSERT(bus_name != RT_NULL);
     RT_ASSERT(device_name != RT_NULL);
@@ -264,11 +269,10 @@ rt_err_t rt_hw_spi_device_attach(const char *bus_name, const char *device_name,
     struct tm4c123_hw_spi_cs *cs_pin;
 
     /* initialize the cs pin && select the slave*/
-    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA+portindex);
+    SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA + portindex);
     GPIOPinTypeGPIOOutput(cs_gpiobase, cs_gpio_pin);
     GPIOPinWrite(cs_gpiobase, cs_gpio_pin, cs_gpio_pin);
 
-
     /* attach the device to spi bus*/
     spi_device = (struct rt_spi_device *)rt_malloc(sizeof(struct rt_spi_device));
     RT_ASSERT(spi_device != RT_NULL);
@@ -299,7 +303,7 @@ int rt_hw_spi_init(void)
 }
 INIT_BOARD_EXPORT(rt_hw_spi_init);
 
-
 #endif /* defined(BSP_USING_SPI0) || defined(BSP_USING_SPI1) || defined(BSP_USING_SPI2) || defined(BSP_USING_SPI3)  */
 #endif  /*RT_USING_SPI*/
 
+/************************** end of file ******************/
\ No newline at end of file
diff --git a/bsp/tm4c123bsp/libraries/Drivers/drv_spi.h b/bsp/tm4c123bsp/libraries/Drivers/drv_spi.h
index ff520b9c12..bc4e5a4e24 100644
--- a/bsp/tm4c123bsp/libraries/Drivers/drv_spi.h
+++ b/bsp/tm4c123bsp/libraries/Drivers/drv_spi.h
@@ -1,5 +1,15 @@
-#ifndef __DRV_SPI_H_
-#define __DRV_SPI_H_
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
+
+#ifndef __DRV_SPI_H__
+#define __DRV_SPI_H__
 
 #include <rtdevice.h>
 #include <rthw.h>
@@ -16,7 +26,7 @@ struct tm4c123_hw_spi_cs
 struct tm4c123_spi_config
 {
     uint32_t   base;
-    char *     bus_name;
+    char      *bus_name;
 };
 
 /* tm4c123 spi dirver class */
@@ -24,7 +34,6 @@ struct tm4c123_spi
 {
     struct tm4c123_spi_config *config;
     struct rt_spi_configuration *cfg;
-
     struct rt_spi_bus spi_bus;
 };
 
@@ -35,11 +44,6 @@ struct tm4c123_spi_device
     char *device_name;
 };
 
-#define SPI_USING_RX_DMA_FLAG   (1<<0)
-#define SPI_USING_TX_DMA_FLAG   (1<<1)
-
-#endif /*__DRV_SPI_H_ */
-
-
-
+#endif /*__DRV_SPI_H__ */
 
+/************************** end of file ******************/
\ No newline at end of file
diff --git a/bsp/tm4c123bsp/libraries/Drivers/drv_uart.c b/bsp/tm4c123bsp/libraries/Drivers/drv_uart.c
index eca880936a..9679baf293 100644
--- a/bsp/tm4c123bsp/libraries/Drivers/drv_uart.c
+++ b/bsp/tm4c123bsp/libraries/Drivers/drv_uart.c
@@ -1,21 +1,28 @@
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
 
+#include "drv_uart.h"
 #include <stdint.h>
 #include <stdbool.h>
-#include "hw_memmap.h"
-#include "hw_ints.h"
-#include "sysctl.h"
-#include "gpio.h"
-#include "pin_map.h"
-#include "interrupt.h"
-#include "rom_map.h"
-#include "uart.h"
+#include "inc/hw_memmap.h"
+#include "inc/hw_ints.h"
+#include "driverlib/sysctl.h"
+#include "driverlib/gpio.h"
+#include "driverlib/pin_map.h"
+#include "driverlib/interrupt.h"
+#include "driverlib/uart.h"
 
-#include "drv_uart.h"
+#ifdef RT_USING_SERIAL
 #include "uart_config.h"
 #include "tm4c123_config.h"
 
-#ifdef RT_USING_SERIAL
-
 #define   LOG_TAG  "drv.uart"
 #include <drv_log.h>
 
@@ -23,42 +30,36 @@
     #error "Please define at least one BSP_USING_UARTx"
 #endif
 
-enum {
-	
+enum
+{
 #ifdef BSP_USING_UART0
-	UART0_INDEX,
+    UART0_INDEX,
 #endif
-	
 #ifdef BSP_USING_UART1
-	UART1_INDEX,
+    UART1_INDEX,
 #endif
-
 #ifdef BSP_USING_UART2
-	UART2_INDEX,
+    UART2_INDEX,
 #endif
-	
 #ifdef BSP_USING_UART3
-	UART3_INDEX,
-#endif	
+    UART3_INDEX,
+#endif
 };
 
-uint32_t  uart_intbase[]=
+uint32_t  uart_intbase[] =
 {
 #ifdef BSP_USING_UART0
-	  INT_UART0,
+    INT_UART0,
 #endif
-	
 #ifdef BSP_USING_UART1
-	  INT_UART1,
+    INT_UART1,
 #endif
-
 #ifdef BSP_USING_UART2
-	  INT_UART2,
+    INT_UART2,
 #endif
-	
 #ifdef BSP_USING_UART3
-	  INT_UART3
-#endif		 
+    INT_UART3
+#endif
 };
 
 static struct tm4c123_uart_config uart_config[] =
@@ -66,7 +67,7 @@ static struct tm4c123_uart_config uart_config[] =
 #ifdef BSP_USING_UART0
     UART0_CONFIG,
 #endif
-	
+
 #ifdef BSP_USING_UART1
     UART1_CONFIG,
 #endif
@@ -74,44 +75,23 @@ static struct tm4c123_uart_config uart_config[] =
 #ifdef BSP_USING_UART2
     UART2_CONFIG,
 #endif
-	
+
 #ifdef BSP_USING_UART3
     UART3_CONFIG,
-#endif	
+#endif
 };
-
 static struct tm4c123_uart uart_obj[sizeof(uart_config) / sizeof(uart_config[0])] = {0};
 
-
-//struct serial_configure
-//{
-//    rt_uint32_t baud_rate;            /* ??? */
-//    rt_uint32_t data_bits    :4;      /* ??? */
-//    rt_uint32_t stop_bits    :2;      /* ??? */
-//    rt_uint32_t parity       :2;      /* ????? */
-//    rt_uint32_t bit_order    :1;      /* ?????????? */
-//    rt_uint32_t invert       :1;      /* ?? */
-//    rt_uint32_t bufsz        :16;     /* ????????? */
-//    rt_uint32_t reserved     :4;      /* ??? */
-//};
-
-//rtservice.h
-//#define  rt_container_of(ptr, type, member)   ((type *)((char *)(ptr) - (unsigned long)(&((type *)0)->member)))
-
 static rt_err_t tm4c123_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
 {
     struct tm4c123_uart *uart;
     RT_ASSERT(serial != RT_NULL);
     RT_ASSERT(cfg != RT_NULL);
-
     uart = rt_container_of(serial, struct tm4c123_uart, serial);
-	  
-	
-	  UARTFIFOLevelSet(uart->config->uartbase, UART_FIFO_TX1_8, UART_FIFO_RX1_8);
-		
+
+    UARTFIFOLevelSet(uart->config->uartbase, UART_FIFO_TX1_8, UART_FIFO_RX1_8);
     UARTConfigSetExpClk(uart->config->uartbase, SysCtlClockGet(), uart->config->baudrate,
-                            uart->config->mode);	
-		
+                        uart->config->mode);
     return RT_EOK;
 }
 
@@ -119,35 +99,23 @@ static rt_err_t tm4c123_configure(struct rt_serial_device *serial, struct serial
 static rt_err_t  tm4c123_control(struct rt_serial_device *serial, int cmd, void *arg)
 {
     struct tm4c123_uart  *uart;
-#ifdef RT_SERIAL_USING_DMA
-    rt_ubase_t ctrl_arg = (rt_ubase_t)arg;
-#endif
-
     RT_ASSERT(serial != RT_NULL);
     uart = rt_container_of(serial, struct tm4c123_uart, serial);
-	
+
     switch (cmd)
     {
-        /* disable interrupt */
+    /* disable interrupt */
     case RT_DEVICE_CTRL_CLR_INT:
         /* disable rx irq */
         IntDisable(uart->uartintbase);
-        /* disable interrupt */
-        //UARTIntDisable(UART0_BASE, UART_INT_RX | UART_INT_RT);
-		    UARTIntDisable(uart->config->uartbase, UART_INT_RX);
+        UARTIntDisable(uart->config->uartbase, UART_INT_RX);
         break;
     /* enable interrupt */
     case RT_DEVICE_CTRL_SET_INT:
         /* enable rx irq */
         IntEnable(uart->uartintbase);
-        //UARTIntEnable(UART0_BASE, UART_INT_RX | UART_INT_RT);
-	    	UARTIntEnable(uart->config->uartbase, UART_INT_RX);
+        UARTIntEnable(uart->config->uartbase, UART_INT_RX);
         break;
-
-#ifdef RT_SERIAL_USING_DMA
-    case RT_DEVICE_CTRL_CONFIG:
-        break;
-#endif
     }
     return RT_EOK;
 }
@@ -158,8 +126,7 @@ static int tm4c123_putc(struct rt_serial_device *serial, char c)
     RT_ASSERT(serial != RT_NULL);
 
     uart = rt_container_of(serial, struct tm4c123_uart, serial);
-	
-	  UARTCharPut(uart->config->uartbase, c);	
+    UARTCharPut(uart->config->uartbase, c);
     return 1;
 }
 
@@ -168,6 +135,7 @@ static int tm4c123_getc(struct rt_serial_device *serial)
     int ch;
     struct tm4c123_uart *uart;
     RT_ASSERT(serial != RT_NULL);
+
     uart = rt_container_of(serial, struct tm4c123_uart, serial);
     ch = -1;
     ch = UARTCharGetNonBlocking(uart->config->uartbase);
@@ -176,27 +144,7 @@ static int tm4c123_getc(struct rt_serial_device *serial)
 
 static rt_size_t tm4c123_dma_transmit(struct rt_serial_device *serial, rt_uint8_t *buf, rt_size_t size, int direction)
 {
-    struct tm4c123_uart *uart;
-    RT_ASSERT(serial != RT_NULL);
-    uart = rt_container_of(serial, struct tm4c123_uart, serial);
-    
-    if (size == 0)
-    {
-        return 0;
-    }
-    
-//    if (RT_SERIAL_DMA_TX == direction)
-//    {
-//        if (HAL_UART_Transmit_DMA(&uart->handle, buf, size) == HAL_OK)
-//        {
-//            return size;
-//        }
-//        else
-//        {
-//            return 0;
-//        }
-//    }
-		
+    /* this is an interface for uart dma, reserved for uptate. */
     return 0;
 }
 
@@ -214,30 +162,21 @@ static const struct rt_uart_ops tm4c123_uart_ops =
  *
  * @param serial serial device
  */
-
 static void uart_isr(struct rt_serial_device *serial)
 {
     struct tm4c123_uart *uart;
-	  uint32_t ui32Ints;
-	
-#ifdef RT_SERIAL_USING_DMA
-    rt_size_t recv_total_index, recv_len;
-    rt_base_t level;
-#endif
-
+    uint32_t ui32Ints;
     RT_ASSERT(serial != RT_NULL);
     uart = rt_container_of(serial, struct tm4c123_uart, serial);
 
-		ui32Ints = UARTIntStatus(uart->config->uartbase, true);
-	  UARTIntClear(uart->config->uartbase, ui32Ints);
+    ui32Ints = UARTIntStatus(uart->config->uartbase, true);
+    UARTIntClear(uart->config->uartbase, ui32Ints);
 
     /* UART in mode Receiver -------------------------------------------------*/
-	  if(ui32Ints & (UART_INT_RX | UART_INT_RT))
+    if (ui32Ints & (UART_INT_RX | UART_INT_RT))
     {
-
         rt_hw_serial_isr(serial, RT_SERIAL_EVENT_RX_IND);
     }
-
 }
 
 #if defined(BSP_USING_UART0)
@@ -250,8 +189,7 @@ void UART0IntHandler(void)
     /* leave interrupt */
     rt_interrupt_leave();
 }
-#endif
-
+#endif /* BSP_USING_UART0 */
 
 #if defined(BSP_USING_UART1)
 void UART1IntHandler(void)
@@ -263,42 +201,11 @@ void UART1IntHandler(void)
     /* leave interrupt */
     rt_interrupt_leave();
 }
-
-
-//#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART1_RX_USING_DMA)
-//void UART1_DMA_RX_IRQHandler(void)
-//{
-//    /* enter interrupt */
-//    rt_interrupt_enter();
-
-//    HAL_DMA_IRQHandler(&uart_obj[UART1_INDEX].dma_rx.handle);
-
-//    /* leave interrupt */
-//    rt_interrupt_leave();
-//}
-//#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART1_RX_USING_DMA) */
-
-//#if defined(RT_SERIAL_USING_DMA) && defined(BSP_UART1_TX_USING_DMA)
-//void UART1_DMA_TX_IRQHandler(void)
-//{
-//    /* enter interrupt */
-//    rt_interrupt_enter();
-
-//    HAL_DMA_IRQHandler(&uart_obj[UART1_INDEX].dma_tx.handle);
-
-//    /* leave interrupt */
-//    rt_interrupt_leave();
-//}
-//#endif /* defined(RT_SERIAL_USING_DMA) && defined(BSP_UART1_TX_USING_DMA) */
 #endif /* BSP_USING_UART1 */
 
-
 static void tm4c123_uart_get_dma_config(void)
 {
-#ifdef BSP_USING_UART1
-
-#endif
-
+    /* this is an interface for uart dma, reserved for update */
 }
 
 int rt_hw_usart_init(void)
@@ -307,14 +214,11 @@ int rt_hw_usart_init(void)
     struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
     rt_err_t result = 0;
 
-    //tm4c123_uart_get_dma_config();
     uart_hw_config();
-	
-	
     for (int i = 0; i < obj_num; i++)
     {
         uart_obj[i].config = &uart_config[i];
-			  uart_obj[i].uartintbase = uart_intbase[i];
+        uart_obj[i].uartintbase = uart_intbase[i];
         uart_obj[i].serial.ops    = &tm4c123_uart_ops;
         uart_obj[i].serial.config = config;
         /* register UART device */
@@ -329,7 +233,6 @@ int rt_hw_usart_init(void)
     return result;
 }
 
-
-
 #endif /* RT_USING_SERIAL */
 
+/************************** end of file ******************/
\ No newline at end of file
diff --git a/bsp/tm4c123bsp/libraries/Drivers/drv_uart.h b/bsp/tm4c123bsp/libraries/Drivers/drv_uart.h
index 23e970dc29..caeb4c57f5 100644
--- a/bsp/tm4c123bsp/libraries/Drivers/drv_uart.h
+++ b/bsp/tm4c123bsp/libraries/Drivers/drv_uart.h
@@ -1,5 +1,15 @@
-#ifndef _DRV_UART_H_
-#define _DRV_UART_H_
+/*
+ * Copyright (c) 2006-2019, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-06-27     AHTYDHD      the first version
+ */
+
+#ifndef __DRV_UART_H__
+#define __DRV_UART_H__
 
 #include <stdint.h>
 #include <rthw.h>
@@ -10,29 +20,28 @@
 struct tm4c123_uart_config
 {
     const char *name;
-	  uint32_t    uartbase;
-	  uint32_t    baudrate;
-	  uint32_t    mode;
+    uint32_t    uartbase;
+    uint32_t    baudrate;
+    uint32_t    mode;
     //struct dma_config *dma_rx;
     //struct dma_config *dma_tx;
 };
 
-
 /* tm4c123 uart dirver class */
 struct tm4c123_uart
-{    
+{
     struct tm4c123_uart_config *config;
-    uint32_t   uartintbase;	
-    
+    uint32_t   uartintbase;
+
 #ifdef RT_SERIAL_USING_DMA
 #endif
-	
+
     rt_uint16_t uart_dma_flag;
     struct rt_serial_device serial;
 };
 
 extern int rt_hw_usart_init(void);
 
-#endif /*_DRV_UART_H_*/
-
+#endif /*__DRV_UART_H__*/
 
+/************************** end of file ******************/
\ No newline at end of file