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[BSP]support 9 data bits and parity config for stm32f10x uart driver.

This commit is contained in:
armink 2015-01-31 11:14:10 +08:00
parent 1213dec3c9
commit 131c41d182
1 changed files with 35 additions and 24 deletions
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59
bsp/stm32f10x/drivers/usart.c
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@ -17,23 +17,22 @@
#include "stm32f10x.h"
#include "usart.h"
#include "board.h"
#include <rtdevice.h>
/* USART1 */
#define UART1_GPIO_TX GPIO_Pin_9
#define UART1_GPIO_RX GPIO_Pin_10
#define UART1_GPIO GPIOA
#define UART1_GPIO_TX GPIO_Pin_9
#define UART1_GPIO_RX GPIO_Pin_10
#define UART1_GPIO GPIOA
/* USART2 */
#define UART2_GPIO_TX GPIO_Pin_2
#define UART2_GPIO_RX GPIO_Pin_3
#define UART2_GPIO GPIOA
#define UART2_GPIO_TX GPIO_Pin_2
#define UART2_GPIO_RX GPIO_Pin_3
#define UART2_GPIO GPIOA
/* USART3_REMAP[1:0] = 00 */
#define UART3_GPIO_TX GPIO_Pin_10
#define UART3_GPIO_RX GPIO_Pin_11
#define UART3_GPIO GPIOB
#define UART3_GPIO_TX GPIO_Pin_10
#define UART3_GPIO_RX GPIO_Pin_11
#define UART3_GPIO GPIOB
/* STM32 uart driver */
struct stm32_uart
@ -54,15 +53,26 @@ static rt_err_t stm32_configure(struct rt_serial_device *serial, struct serial_c
USART_InitStructure.USART_BaudRate = cfg->baud_rate;
if (cfg->data_bits == DATA_BITS_8)
if (cfg->data_bits == DATA_BITS_8){
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
} else if (cfg->data_bits == DATA_BITS_9) {
USART_InitStructure.USART_WordLength = USART_WordLength_9b;
}
if (cfg->stop_bits == STOP_BITS_1)
if (cfg->stop_bits == STOP_BITS_1){
USART_InitStructure.USART_StopBits = USART_StopBits_1;
else if (cfg->stop_bits == STOP_BITS_2)
} else if (cfg->stop_bits == STOP_BITS_2){
USART_InitStructure.USART_StopBits = USART_StopBits_2;
}
if (cfg->parity == PARITY_NONE){
USART_InitStructure.USART_Parity = USART_Parity_No;
} else if (cfg->parity == PARITY_ODD) {
USART_InitStructure.USART_Parity = USART_Parity_Odd;
} else if (cfg->parity == PARITY_EVEN) {
USART_InitStructure.USART_Parity = USART_Parity_Even;
}
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(uart->uart_device, &USART_InitStructure);
@ -162,6 +172,7 @@ void USART1_IRQHandler(void)
/* clear interrupt */
USART_ClearITPendingBit(uart->uart_device, USART_IT_RXNE);
}
if (USART_GetITStatus(uart->uart_device, USART_IT_TC) != RESET)
{
/* clear interrupt */
@ -254,21 +265,21 @@ void USART3_IRQHandler(void)
static void RCC_Configuration(void)
{
#ifdef RT_USING_UART1
#if defined(RT_USING_UART1)
/* Enable UART GPIO clocks */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
/* Enable UART clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
#endif /* RT_USING_UART1 */
#ifdef RT_USING_UART2
#if defined(RT_USING_UART2)
/* Enable UART GPIO clocks */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
/* Enable UART clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
#endif /* RT_USING_UART2 */
#ifdef RT_USING_UART3
#if defined(RT_USING_UART3)
/* Enable UART GPIO clocks */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
/* Enable UART clock */
@ -282,7 +293,7 @@ static void GPIO_Configuration(void)
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_2MHz;
#ifdef RT_USING_UART1
#if defined(RT_USING_UART1)
/* Configure USART Rx/tx PIN */
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Pin = UART1_GPIO_RX;
@ -293,7 +304,7 @@ static void GPIO_Configuration(void)
GPIO_Init(UART1_GPIO, &GPIO_InitStructure);
#endif /* RT_USING_UART1 */
#ifdef RT_USING_UART2
#if defined(RT_USING_UART2)
/* Configure USART Rx/tx PIN */
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Pin = UART2_GPIO_RX;
@ -304,7 +315,7 @@ static void GPIO_Configuration(void)
GPIO_Init(UART2_GPIO, &GPIO_InitStructure);
#endif /* RT_USING_UART2 */
#ifdef RT_USING_UART3
#if defined(RT_USING_UART3)
/* Configure USART Rx/tx PIN */
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Pin = UART3_GPIO_RX;
@ -336,7 +347,7 @@ void rt_hw_usart_init(void)
RCC_Configuration();
GPIO_Configuration();
#ifdef RT_USING_UART1
#if defined(RT_USING_UART1)
uart = &uart1;
config.baud_rate = BAUD_RATE_115200;
@ -347,11 +358,11 @@ void rt_hw_usart_init(void)
/* register UART1 device */
rt_hw_serial_register(&serial1, "uart1",
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX ,
uart);
#endif /* RT_USING_UART1 */
#ifdef RT_USING_UART2
#if defined(RT_USING_UART2)
uart = &uart2;
config.baud_rate = BAUD_RATE_115200;
@ -366,7 +377,7 @@ void rt_hw_usart_init(void)
uart);
#endif /* RT_USING_UART2 */
#ifdef RT_USING_UART3
#if defined(RT_USING_UART3)
uart = &uart3;
config.baud_rate = BAUD_RATE_115200;