void __attribute__ ((interrupt,no_auto_psv)) _U3RXInterrupt(void) {
if(gps_enabled()) {
// PIC24 requires explicit clear of UART Rx interrupt flag!
U3RX_Clear_Intr_Status_Bit;
gps_NMEA_rcv(ReadUART3());
}
else {
csk_uart2_inchar(ReadUART3());
}
}
// UART3 RX ISR
void __attribute__ ((interrupt,no_auto_psv)) _U3RXInterrupt(void)
{
// Clear the interrupt status of UART1 RX
U3RX_Clear_Intr_Status_Bit;
if(DataRdyUART3())
{
incoming_char = ReadUART3(); // Get the character coming from USB UART
while(BusyUART1());
WriteUART1(incoming_char); // Send the character to the GSM UART
while(BusyUART3());
WriteUART3(incoming_char); // Send the character to the USB UART
}
}
//*******************************************************************************************
// UART 3 interrupt handler
// it is set at priority level 2
//*******************************************************************************************
void __ISR(_UART3_VECTOR, ipl2) IntUart3Handler(void)
{
unsigned char theChar;
// Is this an RX interrupt?
if (mU3RXGetIntFlag())
{
theChar = ReadUART3();
store_char(theChar, &rx_buffer3);
// Clear the RX interrupt Flag (must be AFTER the read)
mU3RXClearIntFlag();
}
// We don't care about TX interrupt
if ( mU3TXGetIntFlag() )
{
mU3TXClearIntFlag();
}
}
