aigamozu / MBed_Adafruit-GPS-Library2

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Dependents:   GPSLOG_program

Fork of MBed_Adafruit-GPS-Library by aigamozu

MBed_Adafruit_GPS.cpp@1:ff72e93bcb0e, 2014-05-20 (annotated)

Committer:
m5171135
Date:
Tue May 20 14:51:14 2014 +0000
Revision:
1:ff72e93bcb0e
Parent:
0:a23e3099bb0a
Child:
2:8203e954d8e1
change -> add Auth mode;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mlee350 0:a23e3099bb0a 1 /***********************************
mlee350 0:a23e3099bb0a 2 This is our GPS library
mlee350 0:a23e3099bb0a 3
mlee350 0:a23e3099bb0a 4 Adafruit invests time and resources providing this open source code,
mlee350 0:a23e3099bb0a 5 please support Adafruit and open-source hardware by purchasing
mlee350 0:a23e3099bb0a 6 products from Adafruit!
mlee350 0:a23e3099bb0a 7
mlee350 0:a23e3099bb0a 8 Written by Limor Fried/Ladyada for Adafruit Industries.
mlee350 0:a23e3099bb0a 9 BSD license, check license.txt for more information
mlee350 0:a23e3099bb0a 10 All text above must be included in any redistribution
mlee350 0:a23e3099bb0a 11 ****************************************/
mlee350 0:a23e3099bb0a 12
mlee350 0:a23e3099bb0a 13 #include "MBed_Adafruit_GPS.h"
mlee350 0:a23e3099bb0a 14
mlee350 0:a23e3099bb0a 15 // how long are max NMEA lines to parse?
mlee350 0:a23e3099bb0a 16 #define MAXLINELENGTH 120
mlee350 0:a23e3099bb0a 17
mlee350 0:a23e3099bb0a 18 // we double buffer: read one line in and leave one for the main program
mlee350 0:a23e3099bb0a 19 volatile char line1[MAXLINELENGTH];
mlee350 0:a23e3099bb0a 20 volatile char line2[MAXLINELENGTH];
mlee350 0:a23e3099bb0a 21 // our index into filling the current line
mlee350 0:a23e3099bb0a 22 volatile uint16_t lineidx=0;
mlee350 0:a23e3099bb0a 23 // pointers to the double buffers
mlee350 0:a23e3099bb0a 24 volatile char *currentline;
mlee350 0:a23e3099bb0a 25 volatile char *lastline;
mlee350 0:a23e3099bb0a 26 volatile bool recvdflag;
mlee350 0:a23e3099bb0a 27 volatile bool inStandbyMode;
mlee350 0:a23e3099bb0a 28
mlee350 0:a23e3099bb0a 29
mlee350 0:a23e3099bb0a 30 bool Adafruit_GPS::parse(char *nmea) {
mlee350 0:a23e3099bb0a 31 // do checksum check
mlee350 0:a23e3099bb0a 32
mlee350 0:a23e3099bb0a 33 // first look if we even have one
mlee350 0:a23e3099bb0a 34 if (nmea[strlen(nmea)-4] == '*') {
mlee350 0:a23e3099bb0a 35 uint16_t sum = parseHex(nmea[strlen(nmea)-3]) * 16;
mlee350 0:a23e3099bb0a 36 sum += parseHex(nmea[strlen(nmea)-2]);
mlee350 0:a23e3099bb0a 37
mlee350 0:a23e3099bb0a 38 // check checksum
mlee350 0:a23e3099bb0a 39 for (uint8_t i=1; i < (strlen(nmea)-4); i++) {
mlee350 0:a23e3099bb0a 40 sum ^= nmea[i];
mlee350 0:a23e3099bb0a 41 }
mlee350 0:a23e3099bb0a 42 if (sum != 0) {
mlee350 0:a23e3099bb0a 43 // bad checksum :(
mlee350 0:a23e3099bb0a 44 //return false;
mlee350 0:a23e3099bb0a 45 }
mlee350 0:a23e3099bb0a 46 }
mlee350 0:a23e3099bb0a 47
mlee350 0:a23e3099bb0a 48 // look for a few common sentences
mlee350 0:a23e3099bb0a 49 if (strstr(nmea, "$GPGGA")) {
mlee350 0:a23e3099bb0a 50 // found GGA
mlee350 0:a23e3099bb0a 51 char *p = nmea;
mlee350 0:a23e3099bb0a 52 // get time
mlee350 0:a23e3099bb0a 53 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 54 float timef = atof(p);
mlee350 0:a23e3099bb0a 55 uint32_t time = timef;
mlee350 0:a23e3099bb0a 56 hour = time / 10000;
mlee350 0:a23e3099bb0a 57 minute = (time % 10000) / 100;
mlee350 0:a23e3099bb0a 58 seconds = (time % 100);
mlee350 0:a23e3099bb0a 59
mlee350 0:a23e3099bb0a 60 milliseconds = fmod((double) timef, 1.0) * 1000;
mlee350 0:a23e3099bb0a 61
mlee350 0:a23e3099bb0a 62 // parse out latitude
mlee350 0:a23e3099bb0a 63 p = strchr(p, ',')+1;
m5171135 1:ff72e93bcb0e 64 latitudeH = atol(p);
m5171135 1:ff72e93bcb0e 65 p = strchr(p, '.')+1;
m5171135 1:ff72e93bcb0e 66 latitudeL = atol(p);
mlee350 0:a23e3099bb0a 67
mlee350 0:a23e3099bb0a 68 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 69 if (p[0] == 'N') lat = 'N';
mlee350 0:a23e3099bb0a 70 else if (p[0] == 'S') lat = 'S';
mlee350 0:a23e3099bb0a 71 else if (p[0] == ',') lat = 0;
mlee350 0:a23e3099bb0a 72 else return false;
mlee350 0:a23e3099bb0a 73
mlee350 0:a23e3099bb0a 74 // parse out longitude
mlee350 0:a23e3099bb0a 75 p = strchr(p, ',')+1;
m5171135 1:ff72e93bcb0e 76 longitudeH = atol(p);
m5171135 1:ff72e93bcb0e 77 p = strchr(p, '.')+1;
m5171135 1:ff72e93bcb0e 78 longitudeL = atol(p);
mlee350 0:a23e3099bb0a 79
mlee350 0:a23e3099bb0a 80 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 81 if (p[0] == 'W') lon = 'W';
mlee350 0:a23e3099bb0a 82 else if (p[0] == 'E') lon = 'E';
mlee350 0:a23e3099bb0a 83 else if (p[0] == ',') lon = 0;
mlee350 0:a23e3099bb0a 84 else return false;
mlee350 0:a23e3099bb0a 85
mlee350 0:a23e3099bb0a 86 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 87 fixquality = atoi(p);
mlee350 0:a23e3099bb0a 88
mlee350 0:a23e3099bb0a 89 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 90 satellites = atoi(p);
mlee350 0:a23e3099bb0a 91
mlee350 0:a23e3099bb0a 92 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 93 HDOP = atof(p);
mlee350 0:a23e3099bb0a 94
mlee350 0:a23e3099bb0a 95 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 96 altitude = atof(p);
mlee350 0:a23e3099bb0a 97 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 98 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 99 geoidheight = atof(p);
mlee350 0:a23e3099bb0a 100 return true;
mlee350 0:a23e3099bb0a 101 }
mlee350 0:a23e3099bb0a 102 if (strstr(nmea, "$GPRMC")) {
mlee350 0:a23e3099bb0a 103 // found RMC
mlee350 0:a23e3099bb0a 104 char *p = nmea;
mlee350 0:a23e3099bb0a 105
mlee350 0:a23e3099bb0a 106 // get time
mlee350 0:a23e3099bb0a 107 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 108 float timef = atof(p);
mlee350 0:a23e3099bb0a 109 uint32_t time = timef;
mlee350 0:a23e3099bb0a 110 hour = time / 10000;
mlee350 0:a23e3099bb0a 111 minute = (time % 10000) / 100;
mlee350 0:a23e3099bb0a 112 seconds = (time % 100);
mlee350 0:a23e3099bb0a 113
mlee350 0:a23e3099bb0a 114 milliseconds = fmod((double) timef, 1.0) * 1000;
mlee350 0:a23e3099bb0a 115
mlee350 0:a23e3099bb0a 116 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 117 // Serial.println(p);
mlee350 0:a23e3099bb0a 118 if (p[0] == 'A')
mlee350 0:a23e3099bb0a 119 fix = true;
mlee350 0:a23e3099bb0a 120 else if (p[0] == 'V')
mlee350 0:a23e3099bb0a 121 fix = false;
mlee350 0:a23e3099bb0a 122 else
mlee350 0:a23e3099bb0a 123 return false;
mlee350 0:a23e3099bb0a 124
mlee350 0:a23e3099bb0a 125 // parse out latitude
mlee350 0:a23e3099bb0a 126 p = strchr(p, ',')+1;
m5171135 1:ff72e93bcb0e 127 latitudeH = atol(p);
m5171135 1:ff72e93bcb0e 128 p = strchr(p, '.')+1;
m5171135 1:ff72e93bcb0e 129 latitudeL = atol(p);
mlee350 0:a23e3099bb0a 130
mlee350 0:a23e3099bb0a 131 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 132 if (p[0] == 'N') lat = 'N';
mlee350 0:a23e3099bb0a 133 else if (p[0] == 'S') lat = 'S';
mlee350 0:a23e3099bb0a 134 else if (p[0] == ',') lat = 0;
mlee350 0:a23e3099bb0a 135 else return false;
mlee350 0:a23e3099bb0a 136
mlee350 0:a23e3099bb0a 137 // parse out longitude
mlee350 0:a23e3099bb0a 138 p = strchr(p, ',')+1;
m5171135 1:ff72e93bcb0e 139 longitudeH = atol(p);
m5171135 1:ff72e93bcb0e 140 p = strchr(p, '.')+1;
m5171135 1:ff72e93bcb0e 141 longitudeL = atol(p);
m5171135 1:ff72e93bcb0e 142
mlee350 0:a23e3099bb0a 143 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 144 if (p[0] == 'W') lon = 'W';
mlee350 0:a23e3099bb0a 145 else if (p[0] == 'E') lon = 'E';
mlee350 0:a23e3099bb0a 146 else if (p[0] == ',') lon = 0;
mlee350 0:a23e3099bb0a 147 else return false;
mlee350 0:a23e3099bb0a 148
mlee350 0:a23e3099bb0a 149 // speed
mlee350 0:a23e3099bb0a 150 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 151 speed = atof(p);
mlee350 0:a23e3099bb0a 152
mlee350 0:a23e3099bb0a 153 // angle
mlee350 0:a23e3099bb0a 154 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 155 angle = atof(p);
mlee350 0:a23e3099bb0a 156
mlee350 0:a23e3099bb0a 157 p = strchr(p, ',')+1;
mlee350 0:a23e3099bb0a 158 uint32_t fulldate = atof(p);
mlee350 0:a23e3099bb0a 159 day = fulldate / 10000;
mlee350 0:a23e3099bb0a 160 month = (fulldate % 10000) / 100;
mlee350 0:a23e3099bb0a 161 year = (fulldate % 100);
mlee350 0:a23e3099bb0a 162
mlee350 0:a23e3099bb0a 163 // we dont parse the remaining, yet!
mlee350 0:a23e3099bb0a 164 return true;
mlee350 0:a23e3099bb0a 165 }
mlee350 0:a23e3099bb0a 166
mlee350 0:a23e3099bb0a 167 return false;
mlee350 0:a23e3099bb0a 168 }
mlee350 0:a23e3099bb0a 169
mlee350 0:a23e3099bb0a 170 char Adafruit_GPS::read(void) {
mlee350 0:a23e3099bb0a 171 char c = 0;
mlee350 0:a23e3099bb0a 172
mlee350 0:a23e3099bb0a 173 if (paused) return c;
mlee350 0:a23e3099bb0a 174
mlee350 0:a23e3099bb0a 175 if(!gpsSerial->readable()) return c;
mlee350 0:a23e3099bb0a 176 c = gpsSerial->getc();
mlee350 0:a23e3099bb0a 177
mlee350 0:a23e3099bb0a 178 //Serial.print(c);
mlee350 0:a23e3099bb0a 179
mlee350 0:a23e3099bb0a 180 if (c == '$') {
mlee350 0:a23e3099bb0a 181 currentline[lineidx] = 0;
mlee350 0:a23e3099bb0a 182 lineidx = 0;
mlee350 0:a23e3099bb0a 183 }
mlee350 0:a23e3099bb0a 184 if (c == '\n') {
mlee350 0:a23e3099bb0a 185 currentline[lineidx] = 0;
mlee350 0:a23e3099bb0a 186
mlee350 0:a23e3099bb0a 187 if (currentline == line1) {
mlee350 0:a23e3099bb0a 188 currentline = line2;
mlee350 0:a23e3099bb0a 189 lastline = line1;
mlee350 0:a23e3099bb0a 190 } else {
mlee350 0:a23e3099bb0a 191 currentline = line1;
mlee350 0:a23e3099bb0a 192 lastline = line2;
mlee350 0:a23e3099bb0a 193 }
mlee350 0:a23e3099bb0a 194
mlee350 0:a23e3099bb0a 195 lineidx = 0;
mlee350 0:a23e3099bb0a 196 recvdflag = true;
mlee350 0:a23e3099bb0a 197 }
mlee350 0:a23e3099bb0a 198
mlee350 0:a23e3099bb0a 199 currentline[lineidx++] = c;
mlee350 0:a23e3099bb0a 200 if (lineidx >= MAXLINELENGTH)
mlee350 0:a23e3099bb0a 201 lineidx = MAXLINELENGTH-1;
mlee350 0:a23e3099bb0a 202
mlee350 0:a23e3099bb0a 203 return c;
mlee350 0:a23e3099bb0a 204 }
mlee350 0:a23e3099bb0a 205
mlee350 0:a23e3099bb0a 206 Adafruit_GPS::Adafruit_GPS (Serial *ser)
mlee350 0:a23e3099bb0a 207 {
mlee350 0:a23e3099bb0a 208 common_init(); // Set everything to common state, then...
mlee350 0:a23e3099bb0a 209 gpsSerial = ser; // ...override gpsSwSerial with value passed.
mlee350 0:a23e3099bb0a 210 }
mlee350 0:a23e3099bb0a 211
mlee350 0:a23e3099bb0a 212 // Initialization code used by all constructor types
mlee350 0:a23e3099bb0a 213 void Adafruit_GPS::common_init(void) {
mlee350 0:a23e3099bb0a 214 gpsSerial = NULL;
mlee350 0:a23e3099bb0a 215 recvdflag = false;
mlee350 0:a23e3099bb0a 216 paused = false;
mlee350 0:a23e3099bb0a 217 lineidx = 0;
mlee350 0:a23e3099bb0a 218 currentline = line1;
mlee350 0:a23e3099bb0a 219 lastline = line2;
mlee350 0:a23e3099bb0a 220
mlee350 0:a23e3099bb0a 221 hour = minute = seconds = year = month = day =
mlee350 0:a23e3099bb0a 222 fixquality = satellites = 0; // uint8_t
mlee350 0:a23e3099bb0a 223 lat = lon = mag = 0; // char
mlee350 0:a23e3099bb0a 224 fix = false; // bool
mlee350 0:a23e3099bb0a 225 milliseconds = 0; // uint16_t
m5171135 1:ff72e93bcb0e 226 geoidheight = altitude = speed = angle = magvariation = HDOP = 0.0; // float
m5171135 1:ff72e93bcb0e 227 latitudeH = latitudeL = longitudeH = longitudeL = 0;
m5171135 1:ff72e93bcb0e 228
mlee350 0:a23e3099bb0a 229 }
mlee350 0:a23e3099bb0a 230
mlee350 0:a23e3099bb0a 231 void Adafruit_GPS::begin(int baud)
mlee350 0:a23e3099bb0a 232 {
mlee350 0:a23e3099bb0a 233 gpsSerial->baud(baud);
mlee350 0:a23e3099bb0a 234 wait_ms(10);
mlee350 0:a23e3099bb0a 235 }
mlee350 0:a23e3099bb0a 236
mlee350 0:a23e3099bb0a 237 void Adafruit_GPS::sendCommand(char *str) {
mlee350 0:a23e3099bb0a 238 gpsSerial->printf("%s",str);
mlee350 0:a23e3099bb0a 239 }
mlee350 0:a23e3099bb0a 240
mlee350 0:a23e3099bb0a 241 bool Adafruit_GPS::newNMEAreceived(void) {
mlee350 0:a23e3099bb0a 242 return recvdflag;
mlee350 0:a23e3099bb0a 243 }
mlee350 0:a23e3099bb0a 244
mlee350 0:a23e3099bb0a 245 void Adafruit_GPS::pause(bool p) {
mlee350 0:a23e3099bb0a 246 paused = p;
mlee350 0:a23e3099bb0a 247 }
mlee350 0:a23e3099bb0a 248
mlee350 0:a23e3099bb0a 249 char *Adafruit_GPS::lastNMEA(void) {
mlee350 0:a23e3099bb0a 250 recvdflag = false;
mlee350 0:a23e3099bb0a 251 return (char *)lastline;
mlee350 0:a23e3099bb0a 252 }
mlee350 0:a23e3099bb0a 253
mlee350 0:a23e3099bb0a 254 // read a Hex value and return the decimal equivalent
mlee350 0:a23e3099bb0a 255 uint8_t Adafruit_GPS::parseHex(char c) {
mlee350 0:a23e3099bb0a 256 if (c < '0')
mlee350 0:a23e3099bb0a 257 return 0;
mlee350 0:a23e3099bb0a 258 if (c <= '9')
mlee350 0:a23e3099bb0a 259 return c - '0';
mlee350 0:a23e3099bb0a 260 if (c < 'A')
mlee350 0:a23e3099bb0a 261 return 0;
mlee350 0:a23e3099bb0a 262 if (c <= 'F')
mlee350 0:a23e3099bb0a 263 return (c - 'A')+10;
mlee350 0:a23e3099bb0a 264 }
mlee350 0:a23e3099bb0a 265
mlee350 0:a23e3099bb0a 266 bool Adafruit_GPS::waitForSentence(char *wait4me, uint8_t max) {
mlee350 0:a23e3099bb0a 267 char str[20];
mlee350 0:a23e3099bb0a 268
mlee350 0:a23e3099bb0a 269 uint8_t i=0;
mlee350 0:a23e3099bb0a 270 while (i < max) {
mlee350 0:a23e3099bb0a 271 if (newNMEAreceived()) {
mlee350 0:a23e3099bb0a 272 char *nmea = lastNMEA();
mlee350 0:a23e3099bb0a 273 strncpy(str, nmea, 20);
mlee350 0:a23e3099bb0a 274 str[19] = 0;
mlee350 0:a23e3099bb0a 275 i++;
mlee350 0:a23e3099bb0a 276
mlee350 0:a23e3099bb0a 277 if (strstr(str, wait4me))
mlee350 0:a23e3099bb0a 278 return true;
mlee350 0:a23e3099bb0a 279 }
mlee350 0:a23e3099bb0a 280 }
mlee350 0:a23e3099bb0a 281
mlee350 0:a23e3099bb0a 282 return false;
mlee350 0:a23e3099bb0a 283 }
mlee350 0:a23e3099bb0a 284
mlee350 0:a23e3099bb0a 285 bool Adafruit_GPS::LOCUS_StartLogger(void) {
mlee350 0:a23e3099bb0a 286 sendCommand(PMTK_LOCUS_STARTLOG);
mlee350 0:a23e3099bb0a 287 recvdflag = false;
mlee350 0:a23e3099bb0a 288 return waitForSentence(PMTK_LOCUS_LOGSTARTED);
mlee350 0:a23e3099bb0a 289 }
mlee350 0:a23e3099bb0a 290
mlee350 0:a23e3099bb0a 291 bool Adafruit_GPS::LOCUS_ReadStatus(void) {
mlee350 0:a23e3099bb0a 292 sendCommand(PMTK_LOCUS_QUERY_STATUS);
mlee350 0:a23e3099bb0a 293
mlee350 0:a23e3099bb0a 294 if (! waitForSentence("$PMTKLOG"))
mlee350 0:a23e3099bb0a 295 return false;
mlee350 0:a23e3099bb0a 296
mlee350 0:a23e3099bb0a 297 char *response = lastNMEA();
mlee350 0:a23e3099bb0a 298 uint16_t parsed[10];
mlee350 0:a23e3099bb0a 299 uint8_t i;
mlee350 0:a23e3099bb0a 300
mlee350 0:a23e3099bb0a 301 for (i=0; i<10; i++) parsed[i] = -1;
mlee350 0:a23e3099bb0a 302
mlee350 0:a23e3099bb0a 303 response = strchr(response, ',');
mlee350 0:a23e3099bb0a 304 for (i=0; i<10; i++) {
mlee350 0:a23e3099bb0a 305 if (!response || (response[0] == 0) || (response[0] == '*'))
mlee350 0:a23e3099bb0a 306 break;
mlee350 0:a23e3099bb0a 307 response++;
mlee350 0:a23e3099bb0a 308 parsed[i]=0;
mlee350 0:a23e3099bb0a 309 while ((response[0] != ',') &&
mlee350 0:a23e3099bb0a 310 (response[0] != '*') && (response[0] != 0)) {
mlee350 0:a23e3099bb0a 311 parsed[i] *= 10;
mlee350 0:a23e3099bb0a 312 char c = response[0];
mlee350 0:a23e3099bb0a 313 if (isdigit(c))
mlee350 0:a23e3099bb0a 314 parsed[i] += c - '0';
mlee350 0:a23e3099bb0a 315 else
mlee350 0:a23e3099bb0a 316 parsed[i] = c;
mlee350 0:a23e3099bb0a 317 response++;
mlee350 0:a23e3099bb0a 318 }
mlee350 0:a23e3099bb0a 319 }
mlee350 0:a23e3099bb0a 320 LOCUS_serial = parsed[0];
mlee350 0:a23e3099bb0a 321 LOCUS_type = parsed[1];
mlee350 0:a23e3099bb0a 322 if (isalpha(parsed[2])) {
mlee350 0:a23e3099bb0a 323 parsed[2] = parsed[2] - 'a' + 10;
mlee350 0:a23e3099bb0a 324 }
mlee350 0:a23e3099bb0a 325 LOCUS_mode = parsed[2];
mlee350 0:a23e3099bb0a 326 LOCUS_config = parsed[3];
mlee350 0:a23e3099bb0a 327 LOCUS_interval = parsed[4];
mlee350 0:a23e3099bb0a 328 LOCUS_distance = parsed[5];
mlee350 0:a23e3099bb0a 329 LOCUS_speed = parsed[6];
mlee350 0:a23e3099bb0a 330 LOCUS_status = !parsed[7];
mlee350 0:a23e3099bb0a 331 LOCUS_records = parsed[8];
mlee350 0:a23e3099bb0a 332 LOCUS_percent = parsed[9];
mlee350 0:a23e3099bb0a 333
mlee350 0:a23e3099bb0a 334 return true;
mlee350 0:a23e3099bb0a 335 }
mlee350 0:a23e3099bb0a 336
mlee350 0:a23e3099bb0a 337 // Standby Mode Switches
mlee350 0:a23e3099bb0a 338 bool Adafruit_GPS::standby(void) {
mlee350 0:a23e3099bb0a 339 if (inStandbyMode) {
mlee350 0:a23e3099bb0a 340 return false; // Returns false if already in standby mode, so that you do not wake it up by sending commands to GPS
mlee350 0:a23e3099bb0a 341 }
mlee350 0:a23e3099bb0a 342 else {
mlee350 0:a23e3099bb0a 343 inStandbyMode = true;
mlee350 0:a23e3099bb0a 344 sendCommand(PMTK_STANDBY);
mlee350 0:a23e3099bb0a 345 //return waitForSentence(PMTK_STANDBY_SUCCESS); // don't seem to be fast enough to catch the message, or something else just is not working
mlee350 0:a23e3099bb0a 346 return true;
mlee350 0:a23e3099bb0a 347 }
mlee350 0:a23e3099bb0a 348 }
mlee350 0:a23e3099bb0a 349
mlee350 0:a23e3099bb0a 350 bool Adafruit_GPS::wakeup(void) {
mlee350 0:a23e3099bb0a 351 if (inStandbyMode) {
mlee350 0:a23e3099bb0a 352 inStandbyMode = false;
mlee350 0:a23e3099bb0a 353 sendCommand(""); // send byte to wake it up
mlee350 0:a23e3099bb0a 354 return waitForSentence(PMTK_AWAKE);
mlee350 0:a23e3099bb0a 355 }
mlee350 0:a23e3099bb0a 356 else {
mlee350 0:a23e3099bb0a 357 return false; // Returns false if not in standby mode, nothing to wakeup
mlee350 0:a23e3099bb0a 358 }
mlee350 0:a23e3099bb0a 359 }