STM32F030串口接收数组问题

摘星怪 · 发表于 2018-3-1 13:35:12

本人新手，想做一个串口接收数组的程序，现在串口接收数组的函数写出来之后，数组里面却没有我想要的数据，这种情况应该怎么办？附上我的程序，麻烦各位大神帮忙解答，谢谢！这是串口配置
void USART1_Init(){
      GPIO_InitTypeDef  GPIO_InitStructure;
      USART_InitTypeDef USART_InitStructure;


      RCC_AHBPeriphClockCmd( RCC_AHBPeriph_GPIOA, ENABLE);
      RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE );

      GPIO_PinAFConfig(GPIOA,GPIO_PinSource9,GPIO_AF_1);
      GPIO_PinAFConfig(GPIOA,GPIO_PinSource10,GPIO_AF_1);

      GPIO_InitStructure.GPIO_Pin =GPIO_Pin_9|GPIO_Pin_10;
      GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;
      GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
      GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
      GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
      GPIO_Init(GPIOA, &GPIO_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_ITConfig(USART1,USART_IT_RXNE,ENABLE);          //
      USART_Cmd(USART1, ENABLE);//
}

下面是中断服务函数

void USART1_IRQHandler(void)
{

if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
{
         USART_ReData[nCount ] = USART_ReceiveData(USART1);
      nCount++;

}
   USART_ClearITPendingBit(USART1, USART_IT_RXNE);//Çå3yÖD¶Ï±êÖ¾Î»

}