Keil软件仿真USART1输不出字符

1万 · 2018-5-25 12:32

Keil软件仿真USART1输不出字符

1万 · 2018-5-25 13:11

楼主程序可以公开吗？贴程序看下吧，这么说看不出什么原因

1万 · 2018-5-25 14:47

#include "stm32f10x.h"
void RCC_Configuration(void);
void GPIO_Configuration(void);
void USART_Configuration(u32 BaudRate);
void SendData(void);

int main(void)
{
      RCC_Configuration();
      GPIO_Configuration();
      USART_Configuration(9600);
      SendData();
}

void RCC_Configuration()
{
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_AFIO|RCC_APB2Periph_USART1,ENABLE);
}

void GPIO_Configuration()
{
      GPIO_InitTypeDef GPIO_InitStructure;
      GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;
      GPIO_InitStructure.GPIO_Pin=GPIO_Pin_6;
      GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
      GPIO_Init(GPIOA,&GPIO_InitStructure);
      GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IN_FLOATING;
      GPIO_InitStructure.GPIO_Pin=GPIO_Pin_8;
      GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
      GPIO_Init(GPIOA,&GPIO_InitStructure);
//GPIO_PinRemapConfig(GPIO_Remap_USART1,ENABLE);

}

void USART_Configuration(u32 BaudRate)
{
      USART_InitTypeDef USART_InitStructure;
      USART_InitStructure.USART_BaudRate=BaudRate;
      USART_InitStructure.USART_HardwareFlowControl=USART_HardwareFlowControl_None;
      USART_InitStructure.USART_Mode=USART_Mode_Rx|USART_Mode_Tx;
      USART_InitStructure.USART_Parity=USART_Parity_No;
      USART_InitStructure.USART_StopBits=USART_StopBits_1;
      USART_InitStructure.USART_WordLength=USART_WordLength_9b;
      USART_Init(USART1,&USART_InitStructure);
      USART_Cmd(USART1,ENABLE);
}

void SendData()
{
      u8 i,data;
      data='A';
      for(i=0;i<8;i++)
            {
                     USART_SendData(USART1,data);
                     data++;
                     while(USART_GetFlagStatus(USART1, USART_FLAG_TC)==RESET);
            }
}