Darren Ulrich
A GPS serial interrupt service routine that has an on the fly nmea parser. Works with a STM32F411RE and a Adafruit GPS logger.
Dependents: Bicycl_Computer_NUCLEO-F411RE Bicycl_Computer_NUCLEO-L476RG
Fork of
GPS
by 
Simon Ford
main.cpp
#include "mbed.h"
#include "GPSISR.h"
#define PIN_RX_GPS PA_12 //GPS Shield RX pin
#define PIN_TX_GPS PA_11 //GPS Shield TX pin
Serial pc(USBTX, USBRX);
// Set up serial interrupe service handler for gps characters.
GPS MyGPS(PIN_TX_GPS,PIN_RX_GPS, 9600);
int main()
{
while (1) {
if (MyGPS.dataready()) {
MyGPS.read();
pc.printf("NMEA has valid data");
pc.printf("Sats : %d \n", MyGPS.buffer.satellites);
pc.printf("%d-%d-%d\n", MyGPS.buffer.month, MyGPS.buffer.day, MyGPS.buffer.year);
pc.printf("%d:%d:%d\n", MyGPS.buffer.hours, MyGPS.buffer.minutes, MyGPS.buffer.seconds);
}
else {
pc.printf("NMEA has no valid data");
}
}
}
History
Math error in GPS speed calculation from Knots to Kilometer. Should be ; 1Kn = 1.85Km
2017-03-01, by trevieze [Wed, 01 Mar 2017 15:36:05 +0000] rev 6
Math error in GPS speed calculation from Knots to Kilometer. Should be ; 1Kn = 1.85Km
Added NEWS indication to Lon and Lat display
2017-03-01, by trevieze [Wed, 01 Mar 2017 03:38:03 +0000] rev 5
Added NEWS indication to Lon and Lat display
Added missing seconds in structure
2017-02-18, by trevieze [Sat, 18 Feb 2017 01:37:25 +0000] rev 4
Added missing seconds in structure
Tested library with Adafruit GPS data logger and appears to work.
2017-02-17, by trevieze [Fri, 17 Feb 2017 23:31:39 +0000] rev 3
Tested library with Adafruit GPS data logger and appears to work.
Wrapper for NMEA
2017-02-16, by trevieze [Thu, 16 Feb 2017 23:55:28 +0000] rev 2
Wrapper for NMEA
New interrupt service handler for NMEA library
2017-02-10, by trevieze [Fri, 10 Feb 2017 17:57:45 +0000] rev 1
New interrupt service handler for NMEA library