串口1自收发—中断方式

/******************************************************************************/
/*            STM32F10x Peripherals Interrupt Handlers                        */
/******************************************************************************/

/**
  * @brief  This function handles USART1 global interrupt request.
  * @param  None
  * @retval None
  */
void USART1_IRQHandler(void)
{
uint8_t rxBuffer;
  if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET)
  {
    /* Read one byte from the receive data register */
    //RxBuffer1[RxCounter1++] = USART_ReceiveData(USART1);
	 rxBuffer=USART_ReceiveData(USART1); //读下来立即写出去
	 USART_SendData(USART1, rxBuffer); /*发送一个字符函数*/ 

    //if(RxCounter1 == NbrOfDataToRead1)
    //{
      /* Disable the USART1 Receive interrupt */
      //USART_ITConfig(USART1, USART_IT_RXNE, DISABLE);
    //}

  }

  if(USART_GetITStatus(USART1, USART_IT_TXE) != RESET)
  {   
    /* Write one byte to the transmit data register */
    USART_SendData(USART1, TxBuffer1[TxCounter1++]);

    if(TxCounter1 == NbrOfDataToTransfer1)
    {
      /* Disable the USART1 Transmit interrupt */
      USART_ITConfig(USART1, USART_IT_TXE, DISABLE);
    }    
  }
}


//////////////////////////////////////
int main(void)
{
  /*!< At this stage the microcontroller clock setting is already configured, 
       this is done through SystemInit() function which is called from startup
       file (startup_stm32f10x_xx.s) before to branch to application main.
       To reconfigure the default setting of SystemInit() function, refer to
       system_stm32f10x.c file
     */     

  /* System Clocks Configuration */
  RCC_Configuration();

  /* NVIC configuration */
  NVIC_Configuration();

  /* Configure the GPIO ports */
  GPIO_Configuration();

  GPIO_SetBits(GPIO_LED,DS1_PIN|DS2_PIN|DS3_PIN|DS4_PIN);/*关闭所有的LED指示灯*/
/* USART1 and USART2 configuration ------------------------------------------------------*/

  /* USART1 and USART2 configured as follow:
        - BaudRate = 9600 baud  
        - Word Length = 8 Bits
        - One Stop Bit
        - No parity
        - Hardware flow control disabled (RTS and CTS signals)
        - Receive and transmit enabled
  */
  USART_InitStructure.USART_BaudRate = 115200;               /*设置波特率为115200*/
  USART_InitStructure.USART_WordLength = USART_WordLength_8b;/*设置数据位为8*/
  USART_InitStructure.USART_StopBits = USART_StopBits_1;     /*设置停止位为1位*/
  USART_InitStructure.USART_Parity = USART_Parity_No;        /*无奇偶校验*/
  USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;/*无硬件流控*/
  USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;  /*发送和接收*/

  /*配置串口1 */
  USART_Init(USART1, &USART_InitStructure);
  /*配置串口2*/
  //USART_Init(USART2, &USART_InitStructure);

  /*使能串口1的发送和接收中断*/
  USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
  USART_ITConfig(USART1, USART_IT_TXE, ENABLE);

  /*使能串口2的发送和接收中断*/
  //USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);
  //USART_ITConfig(USART2, USART_IT_TXE, ENABLE);

  /* 使能串口1 */
  USART_Cmd(USART1, ENABLE);
  /* 使能串口2 */
  //USART_Cmd(USART2, ENABLE);

  /* Wait until end of transmission from USART1 to USART2 */
  //while(RxCounter2 < RxBufferSize2)
  //{
  //}

  /* Wait until end of transmission from USART2 to USART1 */
  //while(RxCounter1 < RxBufferSize1)
  //{
  //}

  /* Check the received data with the send ones */
  //TransferStatus1 = Buffercmp(TxBuffer2, RxBuffer1, RxBufferSize1);
  /* TransferStatus1 = PASSED, if the data transmitted from USART2 and  
     received by USART1 are the same */
  /* TransferStatus1 = FAILED, if the data transmitted from USART2 and 
     received by USART1 are different */
  //TransferStatus2 = Buffercmp(TxBuffer1, RxBuffer2, RxBufferSize2);
  /* TransferStatus2 = PASSED, if the data transmitted from USART1 and  
     received by USART2 are the same */
  /* TransferStatus2 = FAILED, if the data transmitted from USART1 and 
     received by USART2 are different */

  while (1)
  {
  /*
       if(TransferStatus1 == PASSED)
       {
  	        GPIO_ResetBits(GPIO_LED,DS1_PIN);//点亮DS1，串口1接收的数据与串口2发送的数据相同
       }
       else if(TransferStatus1 == FAILED)
       {
  	        GPIO_ResetBits(GPIO_LED,DS2_PIN);//点亮DS2，串口1接收的数据与串口2发送的数据不相同
       }

       if(TransferStatus2 == PASSED)
       {
  	        GPIO_ResetBits(GPIO_LED,DS3_PIN);//点亮DS3，串口2接收的数据与串口1发送的数据相同
       }
       else if(TransferStatus2 == FAILED)
       {
  	        GPIO_ResetBits(GPIO_LED,DS3_PIN);//点亮DS3，串口2接收的数据与串口1发送的数据不相同
       } 
*/    
  }
}