void USART1_IRQHandler(void)//串口中断
{
if(USART_GetITStatus(USART1, USART_IT_TXE) != RESET)
{
/* Write one byte to the transmit data register */
if(TxCounter1 < NbrOfDataToTransfer1)
USART_SendData(USART1, TxBuffer1[TxCounter1++]);
/* Clear the USART1 transmit interrupt */
USART_ClearITPendingBit(USART1, USART_IT_TXE);
if(TxCounter1 == NbrOfDataToTransfer1)
{
/* Disable the USART1 Transmit interrupt */
USART_ITConfig(USART1, USART_IT_TXE, DISABLE);
}
}
else
{
/* Read one byte from the receive data register */
RxBuffer1[RxCounter1++] = USART_ReceiveData(USART1);
/* Clear the USART1 Receive interrupt */
USART_ClearITPendingBit(USART1, USART_IT_RXNE);
if(RxCounter1 == NbrOfDataToRead1)
{
/* Disable the USART1 Receive interrupt */
USART_ITConfig(USART1, USART_IT_RXNE, DISABLE);
}
}
}
//**********串口基本配置***********************************/
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_Rx | USART_Mode_Tx;
USART_InitStructure.USART_Clock = USART_Clock_Disable;
USART_InitStructure.USART_CPOL = USART_CPOL_Low;
USART_InitStructure.USART_CPHA = USART_CPHA_2Edge;
USART_InitStructure.USART_LastBit = USART_LastBit_Disable;
/* Configure USART1 */
USART_Init(USART1, &USART_InitStructure);
/* Configure USART2 */
USART_Init(USART2, &USART_InitStructure);
/* Enable USART1 Receive and Transmit interrupt */
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
USART_ITConfig(USART1, USART_IT_TXE, ENABLE);
/* Enable USART2 Receive and Transmit interrupt */
USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);
USART_ITConfig(USART2, USART_IT_TXE, ENABLE);
/* Enable the USART1 */
USART_Cmd(USART1, ENABLE);
/* Enable the USART2 */
USART_Cmd(USART2, ENABLE);
//**********中断配置***********************************/
/* Enable the USART1 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQChannel;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
/* Enable the USART2 Interrupt */
NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQChannel;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
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