// UART2 RX ISR
void __attribute__ ((interrupt,no_auto_psv)) _U2RXInterrupt(void)
{
char c;
// Clear the interrupt status of UART2 RX
U2RX_Clear_Intr_Status_Bit;
// Wait for data to become available
//while(!DataRdyUART2());
// Read a character
//c = ReadUART2();
// Read a character
c = read();
// Valid Chracter returned
if (c) {
// Write character out to USB when ready
while(BusyUART3());
WriteUART3((unsigned int)c);
// Clear out any garbage characters
while(DataRdyUART2())
ReadUART2();
}
// Print out GPS info
// displayGPSInfo();
}
unsigned int getsUART2(unsigned int length,unsigned int *buffer,
unsigned int uart_data_wait)
{
unsigned int wait = 0;
char *temp_ptr = (char *) buffer;
while(length) /* read till length is 0 */
{
while(!DataRdyUART2())
{
if(wait < uart_data_wait)
wait++ ; /*wait for more data */
else
return(length); /*Time out- Return words/bytes to be read */
}
wait=0;
if(U2MODEbits.PDSEL == 3) /* check if TX/RX is 8bits or 9bits */
*buffer++ = U2RXREG; /* data word from HW buffer to SW buffer */
else
*temp_ptr++ = U2RXREG & 0xFF; /* data byte from HW buffer to SW buffer */
length--;
}
return(length); /* number of data yet to be received i.e.,0 */
}
void __attribute__((interrupt, no_auto_psv)) _U2RXInterrupt(void)
{
static uint8_t c = 0;
U2RX_Clear_Intr_Status_Bit;
while (!DataRdyUART2());
c = ReadUART2();
enqueue(&rx_queue, &c);
if (rx_handler) {
uckernel_submit_isr_task(rx_handler, NULL, NULL);
}
}
int command_received(void){
while(DataRdyUART2()){
*Serial.receiveddata = ReadUART2();
Serial.receiveddata++;
}
if(Serial.receiveddata != Serial.rbuf){
if(*(Serial.receiveddata-1) == '\r'){
*(Serial.receiveddata-1) = '\0';
Serial.receiveddata = Serial.rbuf;
return 1;
}
}
return 0;
}
void __attribute__((__interrupt__,auto_psv)) _U2RXInterrupt(void){
IFS1bits.U2RXIF = 0;
while(DataRdyUART2())
{
*Serial.receiveddata = ReadUART2();
Serial.receiveddata++;
}
if((Serial.rbuf[0] == 's') &&
(Serial.rbuf[1] == 't') &&
(Serial.rbuf[2] == 'p') &&
(Serial.rbuf[3] == '\r'))
{
stop = 1;
}
if((Serial.rbuf[0] == 'r') &&
(Serial.rbuf[1] == 's') &&
(Serial.rbuf[2] == 't') &&
(Serial.rbuf[3] == '\r'))
{
reset = 1;
}
}
