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       } */      }}