求帮助！STM32串口程序问题

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yisibugua16| 实习生

楼主 | 2012-3-2 16:22 | 只看该作者回帖奖励

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串口程序, STM32串口, pi, IO, gp

#include "stm32f10x.h"
#include <stdio.h>
//#define RCC_GPIO_LED RCC_APB2Periph_GPIOF
//#define GPIO_LED_PORT GPIOF
//#define DS1_Pin       GPIO_Pin_6

#ifdef __GNUC__
  #define PUTCHAR_PROTOTYPE int __io_putchar(int ch)
#else
  #define PUTCHAR_PROTOTYPE int fputc(int ch, FILE *f)
#endif

void Delay(vu32 count)
{
for(;count!=0;count--);
}

//void LED_Configuration(void)
//{
//  GPIO_InitTypeDef  GPIO_InitStructure;
//  RCC_APB2PeriphClockCmd(RCC_GPIO_LED,ENABLE);
//  GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
//  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
//  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
//  GPIO_Init(GPIO_LED_PORT,&GPIO_InitStructure);
//}
int main(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA, &GPIO_InitStructure);
USART_InitStructure.USART_BaudRate = 115200;
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(USART1, &USART_InitStructure);
USART_Cmd(USART1, ENABLE);

      while (1)
{
printf("\n\r串口1发送实验程序\n");
Delay(0x3FFFFF);
printf("\n\r串口1发送实验程序\n");

}
}

PUTCHAR_PROTOTYPE
{
USART_SendData(USART1, (uint8_t) ch);
while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET)
{}
return ch;
}

程序编译通过，但是下载到板子上连上PC没现象，是不是程序写错了

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