CaryCoders
example program demonstrating use of the adafruit gps and logging to an sd card
Dependencies: AdafruitGPS SDFileSystem TSI mbed
Revision 0:b23bd622e0cc, committed 2015-06-16
- Comitter:
- ftagius
- Date:
- Tue Jun 16 12:05:21 2015 +0000
- Commit message:
- example program to interface with an adafruit ultimate gps and to log gps data to an sd card
Changed in this revision
diff -r 000000000000 -r b23bd622e0cc AdafruitGPS.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/AdafruitGPS.lib Tue Jun 16 12:05:21 2015 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/teams/CaryCoders/code/AdafruitGPS/#35fcaa2209af
diff -r 000000000000 -r b23bd622e0cc SDFileSystem.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem.lib Tue Jun 16 12:05:21 2015 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/teams/CaryCoders/code/SDFileSystem/#82aa379e427e
diff -r 000000000000 -r b23bd622e0cc TSI.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TSI.lib Tue Jun 16 12:05:21 2015 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/teams/mbed/code/TSI/#1a60ef257879
diff -r 000000000000 -r b23bd622e0cc main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Jun 16 12:05:21 2015 +0000
@@ -0,0 +1,218 @@
+#include "mbed.h"
+#include "GPS.h"
+#include "main.h"
+#include "TSISensor.h"
+#include "SDFileSystem.h"
+
+Serial pc(USBTX, USBRX);
+GPS gpsd(PTE20, PTE21);
+ // frdm-kl25z sd card connections
+ // ------------------------------------------------
+ // Header -- kl25z -- SD/MMC
+ // J2-8 -- PTD2 -- MOSI
+ // J2-6 -- PTD0 -- CS
+ // J9-12 -- GND -- Vss (GND)
+ // J9-4 -- P3V3 -- Vdd (+3.3v)
+ // J2-12 -- PTD1 -- SCK
+ // J9-14 -- GND -- Vss (GND)
+ // J2-10 -- PTD3 -- MISO
+
+SDFileSystem sd(PTD2, PTD3, PTD1, PTD0, "sd"); // MOSI, MISO, SCK, CS
+DigitalOut red(LED_RED);
+DigitalOut green(LED_GREEN);
+//DigitalOut blue(LED_BLUE); don't use the blue led, due to a board error, writing to the blue led kills spi
+bool debug;
+
+bool gpsEnabled = true;
+
+int main()
+{
+ bool debug=false;
+ bool logOpened=false;
+ char logFile[128];
+ char directory[]="/sd/gps_data";
+ char c;
+ FILE *fp;
+ Timer refresh_Timer; //sets up a timer for use in loop; how often do we print GPS info?
+ const int refresh_Time = 1000; //refresh time in ms
+ TSISensor tsi; // touch slider
+ int write_count=0;
+ pc.baud(9600);
+
+ red = 1;
+ green = 1;
+ pc.printf("Touch slider to start application\r\n");
+ while(1) {
+ green = 1; // turn led off
+ wait_ms(200);
+ green = 0; // turn led on
+ wait_ms(200);
+ if (tsi.readPercentage())
+ break;
+ }
+ green = 1;
+
+ gpsd.setBaud(9600);
+ gpsd.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCGGA);
+ gpsd.sendCommand(PMTK_SET_NMEA_UPDATE_1HZ);
+ gpsd.sendCommand(PGCMD_ANTENNA);
+ gpsd.day=01;
+ gpsd.month=01;
+ gpsd.year=15;
+ gpsd.hour=1;
+ gpsd.minute=1;
+ gpsd.seconds=1;
+ refresh_Timer.start(); //starts the clock on the timer
+ //Mount the filesystem
+ sd.mount();
+ mkdir(directory, 0777);
+ pc.printf("Starting GPS App\r\n");
+ while (1)
+ {
+ c = gpsd.read(); //queries the GPS
+ if (debug)
+ {
+ if (c) {
+ printf("%c", c); //this line will echo the GPS data if not paused
+ continue;
+ }
+ }
+
+ //check if we recieved a new message from GPS, if so, attempt to parse it,
+ if ( gpsd.newNMEAreceived() ) {
+ if ( !gpsd.parse(gpsd.lastNMEA()) ) {
+ continue;
+ }
+ }
+
+ //check if enough time has passed to warrant printing GPS info to screen
+ //note if refresh_Time is too low or pc.baud is too low, GPS data may be lost during printing
+ if (refresh_Timer.read_ms() >= refresh_Time)
+ {
+ if (gpsd.fix) {
+ // got a gps fix
+
+ // is the log file open? if not, open it
+ if ( !logOpened )
+ {
+ logOpened = true;
+ // create a log file name with the current date/time stamp
+ sprintf(logFile, "%s%s%02d_%02d_20%02d_%02d_%02d_%02d.csv", directory,"/gps_",gpsd.day,gpsd.month,gpsd.year,gpsd.hour,gpsd.minute,gpsd.seconds);
+ sd.mount();
+ fp = fopen(logFile, "w");
+ if(fp == NULL) {
+ // retry
+ wait_ms(500);
+ fp = fopen(logFile, "w");
+ if (fp == NULL)
+ error("Could not open file %s for writing\r\n",logFile);
+ }
+ else
+ {
+ pc.printf("Opened log file %s\r\n",logFile);
+ }
+ // write the log file header
+ fprintf(fp,"# date,time,raw timestamp,latitude,longitude\r\n");
+ }
+
+ pc.printf("Date: %02d/%02d/20%02d ", gpsd.month, gpsd.day, gpsd.year);
+ pc.printf("%02d:%02d:%02d ", gpsd.hour, gpsd.minute, gpsd.seconds);
+ pc.printf("Rawdate: %7.0f ",gpsd.timef);
+ //pc.printf("Fix: %d ", (int) gpsd.fix);
+ //pc.printf("Quality: %d ", (int) gpsd.fixquality);
+ //pc.printf("Loc: %5.2f%c, %5.2f%c ", gpsd.latitude, gpsd.lat, gpsd.longitude, gpsd.lon);
+ pc. printf("Loc: %5.7f, %5.7f ", gpsd.lat_deg, gpsd.lon_deg);
+ //pc.printf("Speed: %5.2f knots ", gpsd.speed);
+ //pc.printf("Angle: %5.2f ", gpsd.angle);
+ //pc.printf("Altitude: %5.2f ", gpsd.altitude);
+ pc. printf("Sat: %d\r\n", gpsd.satellites);
+
+ //red = 1; // turn led off
+ green = 0; // turn led on
+ //wait_ms(100);
+ // keep the log files small by keeping track of write_count.
+ // when write_count exceeds a threshold, close the log file.
+ // a new log file will be openeded at the start of the next loop.
+ if (write_count < 1000)
+ {
+ // write to the current log file
+ fprintf(fp,"%02d/%02d/20%02d,", gpsd.month, gpsd.day, gpsd.year);
+ fprintf(fp,"%02d:%02d:%02d,", gpsd.hour, gpsd.minute, gpsd.seconds);
+ fprintf(fp,"%7.0f,",gpsd.timef);
+ fprintf(fp,"%5.7f,%5.7f", gpsd.lat_deg, gpsd.lon_deg);
+ fprintf(fp,"\r\n");
+ fflush(fp);
+ f_sync((FIL*)fp);
+ fclose(fp);
+ fp = fopen(logFile, "a");
+ //wait_ms(100);
+ if(fp == NULL)
+ {
+ // retry
+ wait_ms(500);
+ fp = fopen(logFile, "a");
+ if (fp == NULL)
+ error("Could not open file for writing 2\r\n");
+ }
+ //else
+ // pc.printf("file closed then reopened\r\n");
+ write_count++;
+
+ }
+ else
+ {
+ // close the current log file
+ fclose(fp);
+ write_count = 0;
+ logOpened = false;
+ //Unmount the filesystem
+ sd.unmount();
+ }
+
+ }
+ else
+ {
+ pc.printf("Waiting for GPS FIX\r\n");
+ red = 0; // turn led on
+ }
+
+ // restart the timer for the gps print loop
+ refresh_Timer.reset();
+ }
+ else
+ {
+ //red = 0; // turn led on
+ green = 1; // turn green led off
+ // check the slider. if touched, close the log file and wait for another slider touch
+ if (tsi.readPercentage())
+ {
+ // close the current log file
+ fclose(fp);
+ write_count = 0;
+ logOpened = false;
+ pc.printf("Closed log file %s\r\n", logFile);
+ pc.printf("Touch slider to continue application\r\n");
+ while (1)
+ {
+
+ green = 1; // turn led off
+ wait_ms(200);
+ green = 0; // turn led on
+ wait_ms(200);
+ // break of of the loop if the slider is touched
+ if (tsi.readPercentage())
+ {
+ green = 1;
+ red = 1;
+ break;
+ }
+
+ } // end while 1 for slider
+ } // end if tsi read
+ } // end else refresh timer
+
+ }
+
+
+
+}
diff -r 000000000000 -r b23bd622e0cc main.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.h Tue Jun 16 12:05:21 2015 +0000
@@ -0,0 +1,84 @@
+/*
+ / _____) _ | |
+( (____ _____ ____ _| |_ _____ ____| |__
+ \____ \| ___ | (_ _) ___ |/ ___) _ \
+ _____) ) ____| | | || |_| ____( (___| | | |
+(______/|_____)_|_|_| \__)_____)\____)_| |_|
+ ( C )2014 Semtech
+
+Description: Contains the callbacks for the IRQs and any application related details
+
+License: Revised BSD License, see LICENSE.TXT file include in the project
+
+Maintainer: Miguel Luis and Gregory Cristian
+*/
+#ifndef __MAIN_H__
+#define __MAIN_H__
+#include "GPS.h"
+
+/*!
+ * @brief Function executed on CAD Done event
+ */
+void OnCadDone( void );
+
+char* itoa(int val, int base);
+unsigned int randomSeed(void);
+void start_ping_pong(void);
+void ping_pong(void);
+void start_hello(void);
+void hello(void);
+void check_gps(void);
+int get_kbd_str(char* buf, int size);
+void console_chat();
+void console();
+
+/*
+ * Global variables declarations
+ */
+extern Serial pc;
+
+#define BUFFER_SIZE 256 // Define the payload size here
+
+#if( defined ( TARGET_KL25Z ) || defined ( TARGET_LPC11U6X ) )
+extern DigitalOut led;
+#else
+extern DigitalOut led;
+#endif
+
+
+extern GPS gpsd;
+extern uint8_t PingMsg[];
+extern uint8_t PongMsg[];
+extern uint8_t HelloMsg[];
+extern uint16_t BufferSize;
+extern uint8_t BufferTx[];
+extern uint8_t BufferRx[];
+extern float Frequency;
+extern int TxPower;
+extern int Bandwidth;
+extern int SpreadingFactor;
+extern int CodingRate;
+extern bool isMaster;
+extern bool AlwaysMaster;
+extern bool AlwaysSlave;
+extern bool rxTimeout;
+extern char pcbuf[];
+extern bool ackRcvd;
+extern bool gpsEnabled;
+extern int txLen;
+extern int16_t RssiValue;
+extern int8_t SnrValue;
+#define PCBUF_SIZE 64
+
+typedef enum {
+ APP_NONE = 0,
+ APP_PING,
+ APP_CHAT,
+ APP_HELLO,
+ APP_CONSOLE,
+ APP_GPS
+} app_e;
+
+extern app_e app;
+
+#endif // __MAIN_H__
\ No newline at end of file
diff -r 000000000000 -r b23bd622e0cc mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Jun 16 12:05:21 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/487b796308b0 \ No newline at end of file