关于串口USART上点方发送的问题

njlz0707mm

求教大神，为什么我的板子上电后没有像PC发送数据？ 代码如下：
#include "stm32f10x.h"
#include "delay.h"
#include "sys.h"
//ALIENTEK战舰STM32开发板实验0
//固件库V3.5工程模板 
//官方技术支持论坛：www.openedv.com
//广州市星翼电子科技有限公司


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


 GPIO_Configuration_GPIOA_GPIO_Pin_9(void)  //Pin_9 位 TX
{
    GPIO_InitTypeDef GPIO_InitStructure;
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
    GPIO_Init(GPIOA,&GPIO_InitStructure);
}

GPIO_Configuration_GPIOA_GPIO_Pin_10(void)  //PIN_10 位 RX
{
    GPIO_InitTypeDef GPIO_InitStructure;
    GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
    GPIO_Init(GPIOA,&GPIO_InitStructure);
}

void USART1_Configuration(void)  //初始化USART  9600，n, 8 ,1
{
    USART_InitTypeDef  USART_InitStructure;
    USART_InitStructure.USART_BaudRate = 9600;
    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);
    USART_ClearFlag(USART1,USART_FLAG_TC);
}


void NVIC_Configuration_USART1_IRQn(void)  //初始化中断向量分组
{
    NVIC_InitTypeDef NVIC_InitStructure; 
    NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStructure);
}

 int main(void)
 {
  unsigned char i;
  RCC_Configuration();
  GPIO_Configuration_GPIOA_GPIO_Pin_9();
  GPIO_Configuration_GPIOA_GPIO_Pin_10();
  USART1_Configuration();
  USART_ClearITPendingBit(USART1,USART_IT_RXNE);
  USART_ClearITPendingBit(USART1,USART_IT_TXE);
  NVIC_Configuration_USART1_IRQn();

  while(1) //while循环应该向PC发送数据的，可是为什么我的PC一点反应都没有？请各位大神指教
  {
   USART_ITConfig(USART1,USART_IT_TXE,ENABLE); //打开USART1发送中断
         USART_SendData(USART1,0x31);    //向PC发送0x31
    USART_ITConfig(USART1,USART_IT_TXE,DISABLE);//关闭USART1发送中断
   USART_ClearITPendingBit(USART1,USART_IT_TXE);
    delay_ms(300);
}
 }

ST-FAE-SALE

仿真看，USART1的寄存器都正常开启了嘛，还有硬件都正常的嘛，

njlz0707mm

回复【2楼】ST-FAE-SALE:
---------------------------------
板子就是买的正点原子的。因为板子放单位，今天休息。如果方便，麻烦版主把程序考到正点原子的板子上试试。工程文件用的就是视频中给的。