Jim Carver / GroveGPS

Improved, thread compatible. Adds new features

Dependents:   GroveGPS-Example

Fork of GroveGPS by Michael Ray

GroveGPS.cpp@2:073674e3f5bf, 2018-04-19 (annotated)

Committer:
JimCarver
Date:
Thu Apr 19 17:54:31 2018 +0000
Revision:
2:073674e3f5bf
Child:
4:4615d6e99bb4
Updated to reflect cloud example

Who changed what in which revision?

UserRevisionLine numberNew contents of line
JimCarver 2:073674e3f5bf 1 // ----------------------------------------------------------------------------
JimCarver 2:073674e3f5bf 2 // Copyright 2016-2017 ARM Ltd.
JimCarver 2:073674e3f5bf 3 //
JimCarver 2:073674e3f5bf 4 // SPDX-License-Identifier: Apache-2.0
JimCarver 2:073674e3f5bf 5 //
JimCarver 2:073674e3f5bf 6 // Licensed under the Apache License, Version 2.0 (the "License");
JimCarver 2:073674e3f5bf 7 // you may not use this file except in compliance with the License.
JimCarver 2:073674e3f5bf 8 // You may obtain a copy of the License at
JimCarver 2:073674e3f5bf 9 //
JimCarver 2:073674e3f5bf 10 // http://www.apache.org/licenses/LICENSE-2.0
JimCarver 2:073674e3f5bf 11 //
JimCarver 2:073674e3f5bf 12 // Unless required by applicable law or agreed to in writing, software
JimCarver 2:073674e3f5bf 13 // distributed under the License is distributed on an "AS IS" BASIS,
JimCarver 2:073674e3f5bf 14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
JimCarver 2:073674e3f5bf 15 // See the License for the specific language governing permissions and
JimCarver 2:073674e3f5bf 16 // limitations under the License.
JimCarver 2:073674e3f5bf 17 // ----------------------------------------------------------------------------
JimCarver 2:073674e3f5bf 18
JimCarver 2:073674e3f5bf 19 #include "mbed.h"
JimCarver 2:073674e3f5bf 20
JimCarver 2:073674e3f5bf 21 #include "GroveGPS.h"
JimCarver 2:073674e3f5bf 22
JimCarver 2:073674e3f5bf 23 Serial gps_serial(PE_8, PE_7, 9600);
JimCarver 2:073674e3f5bf 24
JimCarver 2:073674e3f5bf 25
JimCarver 2:073674e3f5bf 26 Thread gpsThread;
JimCarver 2:073674e3f5bf 27 GroveGPS gps;
JimCarver 2:073674e3f5bf 28
JimCarver 2:073674e3f5bf 29
JimCarver 2:073674e3f5bf 30 void service_serial(void) {
JimCarver 2:073674e3f5bf 31 gps.readCharacter(gps_serial.getc());
JimCarver 2:073674e3f5bf 32 }
JimCarver 2:073674e3f5bf 33
JimCarver 2:073674e3f5bf 34
JimCarver 2:073674e3f5bf 35 int calc_cs(char * str) {
JimCarver 2:073674e3f5bf 36 char cs = 0;
JimCarver 2:073674e3f5bf 37 int x = 1;
JimCarver 2:073674e3f5bf 38
JimCarver 2:073674e3f5bf 39 while(str[x] != '*') {
JimCarver 2:073674e3f5bf 40 cs ^= str[x++];
JimCarver 2:073674e3f5bf 41 }
JimCarver 2:073674e3f5bf 42 return(cs);
JimCarver 2:073674e3f5bf 43 }
JimCarver 2:073674e3f5bf 44
JimCarver 2:073674e3f5bf 45 void nema_send( void ) {
JimCarver 2:073674e3f5bf 46
JimCarver 2:073674e3f5bf 47 char nema_mode[] = "$PMTK314,5,5,5,5,1,0,0,0,0,0,0,0,0,0,0,0,0,1,0*";
JimCarver 2:073674e3f5bf 48 char nema_cmd[64];
JimCarver 2:073674e3f5bf 49 int x = 0;
JimCarver 2:073674e3f5bf 50 sprintf( nema_cmd, "%s%x\r\n", nema_mode, calc_cs(nema_mode));
JimCarver 2:073674e3f5bf 51 while(nema_cmd[x]) {
JimCarver 2:073674e3f5bf 52 gps_serial.putc(nema_cmd[x++]);
JimCarver 2:073674e3f5bf 53 }
JimCarver 2:073674e3f5bf 54 }
JimCarver 2:073674e3f5bf 55
JimCarver 2:073674e3f5bf 56 int GPS_init() {
JimCarver 2:073674e3f5bf 57
JimCarver 2:073674e3f5bf 58 gps_serial.attach( &service_serial, Serial::RxIrq );
JimCarver 2:073674e3f5bf 59 gps.gps_gga.new_flag = 0;
JimCarver 2:073674e3f5bf 60 gps.gps_zda.new_flag = 0;
JimCarver 2:073674e3f5bf 61 gps.gps_vtg.new_flag = 0;
JimCarver 2:073674e3f5bf 62 nema_send();
JimCarver 2:073674e3f5bf 63 return 0;
JimCarver 2:073674e3f5bf 64 }