if( Time20msCnt>
USART_Cmd(USART2, ENABLE);
USART_Cmd(USART3, ENABLE);
USART_Cmd(UART4, ENABLE);
//-----如下语句解决第1个字节无法正确发送出去的问题-----//
USART_ClearFlag(USART1, USART_FLAG_TC);// 清标志
USART_ClearFlag(USART2, USART_FLAG_TC);
USART_ClearFlag(USART3, USART_FLAG_TC);
USART_ClearFlag(UART4 , USART_FLAG_TC);
}
//**********串口中断函数********************
void UART5_IRQHandler(void)
{
uchar x,y,z;
uint checksum1,checksum2;
if(USART_GetITStatus(UART5, USART_IT_RXNE) != RESET) //若接收数据寄存器满
{
x=USART_ReceiveData(UART5);
}
Com5TxChar(x);
}
//------------------------------------------------
void USART1_IRQHandler(void)
{
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) //若接收数据寄存器满
{
Com1RecDat[Com1RecCnt]=USART_ReceiveData(USART1);
}
Com1RecCnt++;
Com1RecCnt%=C1_LEN;
Com1TxChar(USART_ReceiveData(USART1));
}
//----------------------------------------------
void USART2_IRQHandler(void)
{
if(USART_GetITStatus(USART2, USART_IT_RXNE) != RESET) //若接收数据寄存器满
{
Com2RecDat[Com2RecCnt]=USART_ReceiveData(USART2);
}
Com2RecCnt++;
Com2RecCnt%=C1_LEN;
Com2TxChar(USART_ReceiveData(USART2));
}
//-------------------------------------------------
void USART3_IRQHandler(void)
{
if(USART_GetITStatus(USART3, USART_IT_RXNE) != RESET) //若接收数据寄存器满
{
Com3RecDat[Com3RecCnt]=USART_ReceiveData(USART3);
}
Com3RecCnt++;
Com3RecCnt%=C1_LEN;
Com3TxChar(USART_ReceiveData(USART3));
}
//----------------------------------------------------
void UART4_IRQHandler(void)
{
if(USART_GetITStatus(UART4, USART_IT_RXNE) != RESET) //若接收数据寄存器满
{
Com4RecDat[Com4RecCnt]=USART_ReceiveData(UART4);
}
Com4RecCnt++;
Com4RecCnt%=C1_LEN;
Com4TxChar(USART_ReceiveData(UART4));
}
//*****************主函数************************
int main(void)
{
u8 ld[69]=0;
u8 i;
RCC_Configuration();
GPIO_Configuration();
NVIC_Configuration();
UART5_Configuration();
USART_Configuration();
TIM2_Configuration();
SysTick_Configuration();
for(i=0;i<69;i++)
{
ld[i]=i;
}
Com1TxStr(ld,69);
Com2TxStr(ld,69);
Com3TxStr(ld,69);
Com4TxStr(ld,69);
Com5TxStr(ld,69);
while(1)
{
}
}
//-------------------------------------------------------------
http://long0329998.blog.163.com/blog/static/58823187201252611116247/
