Jim Carver / Mbed OS GroveGPS-Example_bug

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Dependencies:   GroveGPS_bug

Fork of GroveGPS-Example by Michael Ray

main.cpp@1:7239f4aa1605, 2018-05-31 (annotated)

Committer:
JimCarver
Date:
Thu May 31 16:29:40 2018 +0000
Revision:
1:7239f4aa1605
Parent:
0:39b09b3d8731 
bug

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Michael Ray 0:39b09b3d8731 1 // ----------------------------------------------------------------------------
Michael Ray 0:39b09b3d8731 2 // Copyright 2016-2017 ARM Ltd.
Michael Ray 0:39b09b3d8731 3 //
Michael Ray 0:39b09b3d8731 4 // SPDX-License-Identifier: Apache-2.0
Michael Ray 0:39b09b3d8731 5 //
Michael Ray 0:39b09b3d8731 6 // Licensed under the Apache License, Version 2.0 (the "License");
Michael Ray 0:39b09b3d8731 7 // you may not use this file except in compliance with the License.
Michael Ray 0:39b09b3d8731 8 // You may obtain a copy of the License at
Michael Ray 0:39b09b3d8731 9 //
Michael Ray 0:39b09b3d8731 10 // http://www.apache.org/licenses/LICENSE-2.0
Michael Ray 0:39b09b3d8731 11 //
Michael Ray 0:39b09b3d8731 12 // Unless required by applicable law or agreed to in writing, software
Michael Ray 0:39b09b3d8731 13 // distributed under the License is distributed on an "AS IS" BASIS,
Michael Ray 0:39b09b3d8731 14 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Michael Ray 0:39b09b3d8731 15 // See the License for the specific language governing permissions and
Michael Ray 0:39b09b3d8731 16 // limitations under the License.
Michael Ray 0:39b09b3d8731 17 // ----------------------------------------------------------------------------
Michael Ray 0:39b09b3d8731 18
Michael Ray 0:39b09b3d8731 19 #include "mbed.h"
Michael Ray 0:39b09b3d8731 20
Michael Ray 0:39b09b3d8731 21 #include "GroveGPS.h"
Michael Ray 0:39b09b3d8731 22
JimCarver 1:7239f4aa1605 23 extern int GPS_init();
JimCarver 1:7239f4aa1605 24 extern GroveGPS gps;
JimCarver 1:7239f4aa1605 25 Thread gpsThread(osPriorityNormal);
Michael Ray 0:39b09b3d8731 26
Michael Ray 0:39b09b3d8731 27
Michael Ray 0:39b09b3d8731 28 // Runs at 1Hz and updates the GPS location every second
Michael Ray 0:39b09b3d8731 29 void gps_updater_thread() {
JimCarver 1:7239f4aa1605 30 int tt, hours, minutes, seconds, tday;
JimCarver 1:7239f4aa1605 31 int months[] = {0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
JimCarver 1:7239f4aa1605 32 printf("Thread Initialized\r\n");
Michael Ray 0:39b09b3d8731 33 while(true) {
Michael Ray 0:39b09b3d8731 34 char latBuffer[16], lonBuffer[16];
Michael Ray 0:39b09b3d8731 35 gps.getLatitude(latBuffer);
Michael Ray 0:39b09b3d8731 36 gps.getLongitude(lonBuffer);
Michael Ray 0:39b09b3d8731 37
Michael Ray 0:39b09b3d8731 38 // Utilize latitude and longitude values here
JimCarver 1:7239f4aa1605 39 printf("\r\nLa=%s Lo=%s\r\n", latBuffer, lonBuffer);
JimCarver 1:7239f4aa1605 40 tt = gps.gps_zda.utc_time;
JimCarver 1:7239f4aa1605 41 hours = tt / 10000;
JimCarver 1:7239f4aa1605 42 tt = tt - (hours*10000);
JimCarver 1:7239f4aa1605 43 minutes = tt / 100;
JimCarver 1:7239f4aa1605 44 seconds = tt - (minutes*100);
JimCarver 1:7239f4aa1605 45 // Correct UTC to PAcific time
JimCarver 1:7239f4aa1605 46 hours -= 7;
JimCarver 1:7239f4aa1605 47 tday = gps.gps_zda.day;
JimCarver 1:7239f4aa1605 48 if(hours < 0) { // UTC Correct
JimCarver 1:7239f4aa1605 49 hours += 24;
JimCarver 1:7239f4aa1605 50 tday -= 1;
JimCarver 1:7239f4aa1605 51 if(!tday) {
JimCarver 1:7239f4aa1605 52 tday = months[gps.gps_zda.month];
JimCarver 1:7239f4aa1605 53 }
JimCarver 1:7239f4aa1605 54 }
JimCarver 1:7239f4aa1605 55 printf("\r\n%02d", seconds);
Michael Ray 0:39b09b3d8731 56 wait(1);
Michael Ray 0:39b09b3d8731 57 }
Michael Ray 0:39b09b3d8731 58 }
Michael Ray 0:39b09b3d8731 59
Michael Ray 0:39b09b3d8731 60 int main() {
JimCarver 1:7239f4aa1605 61 GPS_init();
JimCarver 1:7239f4aa1605 62 printf("GPS Initialized\r\n");
Michael Ray 0:39b09b3d8731 63 // Start a thread to get updated GPS values
JimCarver 1:7239f4aa1605 64 gpsThread.start(callback(gps_updater_thread));
Michael Ray 0:39b09b3d8731 65
JimCarver 1:7239f4aa1605 66 // do nothing while the library does all the work
Michael Ray 0:39b09b3d8731 67 while (true) {
JimCarver 1:7239f4aa1605 68
Michael Ray 0:39b09b3d8731 69 }
Michael Ray 0:39b09b3d8731 70
Michael Ray 0:39b09b3d8731 71 return 0;
Michael Ray 0:39b09b3d8731 72 }