void UART1_Handler(void)
{
uint8_t ch;
if(UART_GetITStatus(UART1,UART_IT_FLAG_RXI))
{
ch = UART_ReceiveData(UART1);
uart1_rx_cnt++;
}
else if(UART_GetITStatus(UART1,UART_IT_FLAG_TXI))
{
UART_ClearITPendingBit(UART1,UART_IT_FLAG_TXI);
uart1_tx_cnt++;
}
}
void UART2_IRQHandler(void)
{
if(UART_GetITStatus(MDR_UART2,UART_IT_RX) == SET)
{
UART_ClearITPendingBit(MDR_UART2,UART_IT_RX);
}
}
void UART1_IRQHandler(void)
{
static uint8_t cnt_rx_byte=0;
static bool start=false;
uint8_t tmp=0;
if(UART_GetITStatus(MDR_UART1,UART_IT_RX) == SET)
{
UART_ClearITPendingBit(MDR_UART1,UART_IT_RX);
tmp=UART_ReceiveData(MDR_UART1);
if((tmp==0xAA) && (!start))
{
start=true;
}
else
{
if(start)
{
if(!RX_ok)
ArrayRX_PKBA[cnt_rx_byte]=tmp;
++cnt_rx_byte;
if(cnt_rx_byte==RX_FRAME_SIZE)
{
RX_ok=true;
start=false;
cnt_rx_byte=0;
}
}
}
}
MDR_UART1->RSR_ECR = 0;
}
void UART0_IRQHandler(void)
{
u8 c;
// if receive irq (FIFO is over trigger level) or receive timeout irq (FIFO is not empty for longer times) has occured
if((UART_GetITStatus(UART0, UART_IT_Receive) != RESET) || (UART_GetITStatus(UART0, UART_IT_ReceiveTimeOut) != RESET) )
{
UART_ClearITPendingBit(UART0, UART_IT_Receive); // clear receive interrupt flag
UART_ClearITPendingBit(UART0, UART_IT_ReceiveTimeOut); // clear receive timeout interrupt flag
// if debug UART is UART0
if (DebugUART == UART0)
{ // forward received data to the UART1 tx buffer
while(UART_GetFlagStatus(UART0, UART_FLAG_RxFIFOEmpty) != SET)
{
// wait for space in the tx buffer of the UART1
while(UART_GetFlagStatus(UART1, UART_FLAG_TxFIFOFull) == SET) {};
// move the byte from the rx buffer of UART0 to the tx buffer of UART1
UART_SendData(UART1, UART_ReceiveData(UART0));
}
}
else // UART0 is not the DebugUART (normal operation)
{
// repeat until no byte is in the RxFIFO
while (UART_GetFlagStatus(UART0, UART_FLAG_RxFIFOEmpty) != SET)
{
c = UART_ReceiveData(UART0); // get byte from rx fifo
switch(UART0_Muxer)
{
case UART0_MKGPS:
UBX_RxParser(c); // if connected to GPS forward byte to ubx parser
MKProtocol_CollectSerialFrame(&UART0_rx_buffer, c); // ckeck for MK-Frames also
break;
case UART0_MK3MAG:
// ignore any byte send from MK3MAG
break;
case UART0_UNDEF:
default:
// ignore the byte from unknown source
break;
} // eof switch(UART0_Muxer)
} // eof while
} // eof UART0 is not the DebugUART
} // eof receive irq or receive timeout irq
}
void UART2_IRQHandler(void)
{
struct mm32_uart *uart;
uart = &uart2;
/* enter interrupt */
rt_interrupt_enter();
if (UART_GetITStatus(uart->uart_device, UART_IT_RXIEN) != RESET)
{
UART_ClearITPendingBit(uart->uart_device, UART_IT_RXIEN);
rt_hw_serial_isr(&serial2, RT_SERIAL_EVENT_RX_IND);
}
if (UART_GetITStatus(uart->uart, UART_IT_TXIEN) != RESET)
{
/* clear interrupt */
UART_ClearITPendingBit(uart->uart, UART_IT_TXIEN);
}
/* leave interrupt */
rt_interrupt_leave();
}
void UART1_Handler(void)
{
if(UART_GetITStatus(UART1, UART_IT_FLAG_RXI)) {
UART_ClearITPendingBit(UART1, UART_IT_FLAG_RXI);
if( (u1rx_wr > u1rx_rd && u1rx_wr-u1rx_rd >= U1RX_BUF_SIZE-1) ||(u1rx_wr < u1rx_rd && u1rx_rd == u1rx_wr+1) ) // Buffer Overflow
{
UART_SendData(UART1, (uint8_t)'@');
return;
}
u1rx_buf[u1rx_wr] = (uint8_t)UART_ReceiveData(UART1);
if(u1rx_wr < U1RX_BUF_SIZE-1)
u1rx_wr++;
else
u1rx_wr = 0;
}
}
