void gpsNmeaTest(void)
{
// set the baud rate of UART 1 for NMEA
uartSetBaudRate(1,4800);
// clear screen
vt100ClearScreen();
// initialize gps library
gpsInit();
// initialize gps packet decoder
nmeaInit();
// begin gps packet processing loop
while(1)
{
// process received gps packets until receive buffer is exhausted
while( nmeaProcess(uartGetRxBuffer(1)) );
// set cursor position to top left of screen
vt100SetCursorPos(0,0);
// print/dump current formatted GPS data
gpsInfoPrint();
// print UART 1 overflow status to verify that we're processing packets
// fast enough and that our receive buffer is large enough
rprintf("Uart1RxOvfl: %d\r\n",uartRxOverflow[1]);
// pause for 100ms
timerPause(100);
}
}
/**
* Called each time there are data in the input buffer
*/
void NMEAParser::processInputStream(char c)
{
if( !bufferAddToEnd(&gpsRxBuffer, c) )
{
// no space in buffer
// count overflow
gpsRxOverflow++;
return;
}
nmeaProcess(&gpsRxBuffer);
}
