Mark x
/
GPS_Test
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Revision 0:0ec25826c208, committed 2010-03-10
- Comitter:
- markco24
- Date:
- Wed Mar 10 21:57:44 2010 +0000
- Commit message:
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/data.h Wed Mar 10 21:57:44 2010 +0000 @@ -0,0 +1,14 @@ +#ifndef _DATA_H_ +#define _DATA_H_ + char gpsString[1024]; + char gsv1[1024]; + char * gsv2; + char rmc1[1024]; + char * rmc2; + char gga1[1024]; + char * gga2; + char * fix; + int sep; + int mode = 1; + +#endif \ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/gps.h Wed Mar 10 21:57:44 2010 +0000
@@ -0,0 +1,157 @@
+#include "mbed.h"
+#include "TextLCD.h"
+#include "data.h"
+// Green wire to pin13
+// White wire to pin14
+
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);
+Serial pc(USBTX, USBRX);
+Serial gps(p13, p14);
+TextLCD lcd(p21, p22, p23, p24, p25, p27, p28);
+
+
+int parseGSV() {
+ gsv2 = strtok(gsv1, ",");
+ while (gsv2 != NULL) {
+ sep++;
+ switch (sep) {
+ case 1:
+ // # of sentences
+ lcd.printf("#:%s\n",gsv2);
+ break;
+ case 2 :
+ // Sentence # of #
+ lcd.printf("S#:%s",gsv2);
+ break;
+ case 3 :
+ // Number of Satellites in view (Should give a hint as to how many cases to expect here...
+ lcd.printf("#:%s\n",gsv2);
+ break;
+ case 4 :
+ // Satellite PRN Number
+ lcd.printf("PRN#:%s\n",gsv2);
+ break;
+ case 5 :
+ // Elevation in Degrees
+ break;
+ case 6:
+ // Azimuth in Degrees
+ break;
+ case 7:
+ // SNR - up to 4 satellites per sentence
+ break;
+ }
+ gsv2 = strtok(NULL, ",");
+ }
+ sep = 0;
+ return *gsv2;
+}
+
+int parseRMC() {
+
+ return 0;
+}
+
+int parseGGA() {
+ gga2 = strtok(gga1, ",");
+ while (gga2 != NULL) {
+ sep++;
+ switch (sep) {
+ case 1:
+ if (mode == 1) {
+ lcd.cls();
+ lcd.printf("Time:%s\n",gga2);
+ }
+ break;
+ case 2 :
+ if (mode == 2) {
+ lcd.cls();
+ lcd.printf("Lat:%s",gga2);
+ }
+ break;
+ case 3 :
+ if (mode == 2) {
+ lcd.printf("%s\n",gga2);
+ wait(0.25);
+ }
+ break;
+ case 4 :
+ if (mode == 2) {
+ lcd.cls();
+ lcd.printf("Lon:%s",gga2);
+ }
+ break;
+ case 5 :
+ if (mode == 2) {
+ lcd.printf("%s\n",gga2);
+ wait(0.25);
+ }
+ break;
+ case 6:
+ if (mode == 1) {
+ if (gga2 == "0") {
+ fix = "Invalid";
+ }
+ if (gga2 == "1") {
+ fix = "GPS Fix (SPS)";
+ }
+ if (gga2 == "2") {
+ fix = "DGPS Fix";
+ }
+ if (gga2 == "3") {
+ fix = "PPS Fix";
+ }
+ if (gga2 == "4") {
+ fix = "Real Time Kinematic";
+ }
+ if (gga2 == "5") {
+ fix = "Float RTK";
+ }
+ if (gga2 == "6") {
+ fix = "Estimated (Dead Reckoning)";
+ }
+ if (gga2 == "7") {
+ fix = "Manual Input Mode";
+ }
+ if (gga2 == "8") {
+ fix = "Simulation Mode";
+ }
+ lcd.printf("FIX: %s_%s",gga2,fix);
+ }
+ break;
+ }
+ gga2 = strtok(NULL, ",");
+ }
+ sep = 0;
+ return *gga2;
+}
+
+int getGPSstring(int str) {
+ if (gps.scanf("%s", &gpsString) ==1) {
+ if (str == 1) {
+ if (sscanf(gpsString, "$GPGSV,%s",gsv1) >= 1) {
+ sep = 0;
+ parseGSV();
+ }
+ return *gsv2;
+ }
+ if (str == 2) {
+ if (sscanf(gpsString, "$GPRMC,%s",rmc1) >= 1) {
+ sep = 0;
+ parseRMC();
+ }
+ return *rmc2;
+ }
+ if (str == 3) {
+ if (sscanf(gpsString, "$GPGGA,%s",gga1) >=1) {
+ sep = 0;
+ parseGGA();
+ }
+ return *gga2;
+ }
+ }
+ return 0;
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Mar 10 21:57:44 2010 +0000
@@ -0,0 +1,16 @@
+#include "mbed.h"
+#include "gps.h"
+#include "data.h"
+
+int main() {
+ lcd.printf("Device Starting.");
+ pc.baud(921600);
+ gps.baud(38400);
+
+ pc.printf("\033[2J");
+
+ wait(0.25);
+ while(1) {
+ getGPSstring(1);
+ }
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Mar 10 21:57:44 2010 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/49a220cc26e0