STM32F417的串口1发不出数据
谁有在用STM32F417吗，为什么我的串口1发不出数据，电路图和103的一样的，STM32F103那边可以正常接收啊。硬件应该没什么问题啊。下面是我的代码：
/*
* FILE : main.c
* DESCRIPTION : This file is main files.
* Author : jimmy
* Copyright :
* History
* --------------------
* Rev : 0.00
* Date : 17/11/2012
* --------------------
*/
/* Includes ------------------------------------------------------------------*/
#include "stm32f4xx.h"
#defineToutch_Penel_Baud 9600
#defineUART_Com_Baud 9600
extern u8 USART1_Byte_buffer;
extern u8 USART3_Byte_buffer;
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
void LED_initial(void)
{
GPIO_InitTypeDefGPIO_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOC, &GPIO_InitStructure);
}
void LED_on(void)
{
GPIO_ResetBits(GPIOC,GPIO_Pin_0);
}
void LED_off(void)
{
GPIO_SetBits(GPIOC,GPIO_Pin_0);
}
void Com_initial(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA,ENABLE);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9|GPIO_Pin_10;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_PinAFConfig(GPIOA,GPIO_Pin_9,GPIO_AF_USART1);
GPIO_PinAFConfig(GPIOA,GPIO_Pin_10,GPIO_AF_USART1);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1,ENABLE);
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
USART_DeInit(USART1);
USART_InitStructure.USART_BaudRate =UART_Com_Baud;
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_Tx | USART_Mode_Rx;
USART_Init(USART1, &USART_InitStructure);
USART_ITConfig(USART1,USART_IT_RXNE, ENABLE);
USART_Cmd(USART1, ENABLE);
}
void Toutch_Penel_initial(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOC,ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3,ENABLE);
GPIO_PinAFConfig(GPIOC,GPIO_Pin_10,GPIO_AF_USART3);
GPIO_PinAFConfig(GPIOC,GPIO_Pin_11,GPIO_AF_USART3);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_Init(GPIOC, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
GPIO_Init(GPIOC, &GPIO_InitStructure);
USART_InitStructure.USART_BaudRate = Toutch_Penel_Baud;
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_Tx | USART_Mode_Rx;
USART_Init(USART3, &USART_InitStructure);
USART_ITConfig(USART3,USART_IT_RXNE, ENABLE);
USART_Cmd(USART3, ENABLE);
NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
void Toutch_Penel_Send(unsigned char data)
{
USART_SendData(USART3,data);
while(USART_GetFlagStatus(USART3, USART_FLAG_TXE) == RESET);
}
void Com_Send(unsigned char data)
{
USART_SendData(USART1,data);
while(USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
LED_on();
}
void System_NVIC_initial(void)
{
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
}
static void Sys_int(void)
{
LED_initial();
System_NVIC_initial();
Com_initial();
Toutch_Penel_initial();
LED_off();
}
int main(void)
{
Sys_int();
while (1)
{
Com_Send('a');
Com_Send('b');
Com_Send('v');
}
}
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