STM32f407 一个串口收传给另一个串口再发送出去串口收发设置

intfputc(intch, FILE *f)

{

/* Place your implementation of fputc here */ /* e.g. write a character to the USART */ USART_SendData(USART6, (uint8_t) ch);

/* Loop until the end of transmission */

while (USART_GetFlagStatus(USART6, USART_FLAG_TC) == RESET) {} returnch; }

#ifdef USE_FULL_ASSERT /**

* @brief Reports the name of the source file and the source line number * where the assert_param error has occurred. * @param file: pointer to the source file name * @param line: assert_param error line source number * @retvalNone

*/

voidassert_failed(uint8_t* file, uint32_t line) {

/* User can add his own implementation to report the file name and line number, ex: printf(\

/* Infinite loop */ while (1) { } } #endif /** * @} */ /** * @} */

/*中断*/

uint8_t Uart3_Buffer[255]; uint8_t temp; uint8_t Flag=0; int RxCounter=0; inti=0;

void USART3_IRQHandler(void) {

if(USART_GetITStatus(USART3,USART_IT_RXNE)!= RESET) //中断产生 {

USART_ClearITPendingBit(USART3,USART_IT_RXNE); //清除中断标志 if(RxCounter==0) {

temp=USART_ReceiveData(USART3);

if(temp==FRAMEHEAD) /*FRAMEHEAD*/ Uart3_Buffer[RxCounter++]=temp;

}

else {

Uart3_Buffer[RxCounter++]=USART_ReceiveData(USART3); if(RxCounter==FRAMELEN) {

Flag=1; RxCounter=0;

/*FRAMELEN*/

}

if(USART_GetFlagStatus(USART3,USART_FLAG_ORE) == SET)

{ USART_ClearFlag(USART3,USART_FLAG_ORE); USART_ReceiveData(USART3); } }

}

if(USART_GetITStatus(USART3,USART_IT_TXE)!= RESET) {

USART_ClearITPendingBit(USART3,USART_IT_TXE); if(Flag) {

for(i=0;i

USART_SendData(USART3,Uart3_Buffer[i]); //发送数据 while(USART_GetFlagStatus(USART3,USART_FLAG_TC)==RESET); {} }

}

Flag=0; } }

uint8_t Flag6=0; int RxCounter6=0; uint8_t temp6;

uint8_t Uart6_Buffer[255]; void USART6_IRQHandler(void) {

if(USART_GetITStatus(USART6,USART_IT_RXNE)!= RESET) {

USART_ClearITPendingBit(USART6,USART_IT_RXNE); if(RxCounter6==0)

{

temp6=USART_ReceiveData(USART6);

if(temp6==FRAMEHEAD) /*FRAMEHEAD*/ Uart6_Buffer[RxCounter6++]=temp6; } else

{ Uart6_Buffer[RxCounter6++]=USART_ReceiveData(USART6);

if(RxCounter6==FRAMELEN) {

Flag6=1; RxCounter6=0;

/*FRAMELEN*/

}

if(USART_GetFlagStatus(USART6,USART_FLAG_ORE) == SET)

{ USART_ClearFlag(USART6,USART_FLAG_ORE); USART_ReceiveData(USART6); }

}

} }

int main(void)

{ inti=0; int j=0; GPIO_Configuration(); USART_Configuration(); NVIC_Config();

while (1) }

{ }