VFD modular clock firmware
Dependencies: DipCortex-EEprom RTC flw mbed
gps.cpp@0:f6e68b4ce169, 2015-02-09 (annotated)
- Committer:
- Backstrom
- Date:
- Mon Feb 09 13:40:46 2015 +0000
- Revision:
- 0:f6e68b4ce169
Initial commit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Backstrom | 0:f6e68b4ce169 | 1 | /* |
Backstrom | 0:f6e68b4ce169 | 2 | * GPS support for VFD Modular Clock |
Backstrom | 0:f6e68b4ce169 | 3 | * (C) 2012 William B Phelps |
Backstrom | 0:f6e68b4ce169 | 4 | * |
Backstrom | 0:f6e68b4ce169 | 5 | * mbed Port (C) 2014 Akafugu Corporation |
Backstrom | 0:f6e68b4ce169 | 6 | * |
Backstrom | 0:f6e68b4ce169 | 7 | * This program is free software; you can redistribute it and/or modify it under the |
Backstrom | 0:f6e68b4ce169 | 8 | * terms of the GNU General Public License as published by the Free Software |
Backstrom | 0:f6e68b4ce169 | 9 | * Foundation; either version 2 of the License, or (at your option) any later |
Backstrom | 0:f6e68b4ce169 | 10 | * version. |
Backstrom | 0:f6e68b4ce169 | 11 | * |
Backstrom | 0:f6e68b4ce169 | 12 | * This program is distributed in the hope that it will be useful, but WITHOUT ANY |
Backstrom | 0:f6e68b4ce169 | 13 | * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A |
Backstrom | 0:f6e68b4ce169 | 14 | * PARTICULAR PURPOSE. See the GNU General Public License for more details. |
Backstrom | 0:f6e68b4ce169 | 15 | * |
Backstrom | 0:f6e68b4ce169 | 16 | */ |
Backstrom | 0:f6e68b4ce169 | 17 | |
Backstrom | 0:f6e68b4ce169 | 18 | #include "global.h" |
Backstrom | 0:f6e68b4ce169 | 19 | #include "gps.h" |
Backstrom | 0:f6e68b4ce169 | 20 | |
Backstrom | 0:f6e68b4ce169 | 21 | #ifdef HAVE_GPS |
Backstrom | 0:f6e68b4ce169 | 22 | |
Backstrom | 0:f6e68b4ce169 | 23 | //Serial gps(P1_13, P1_14); |
Backstrom | 0:f6e68b4ce169 | 24 | Serial* gps; |
Backstrom | 0:f6e68b4ce169 | 25 | |
Backstrom | 0:f6e68b4ce169 | 26 | bool g_gps_updating = false; |
Backstrom | 0:f6e68b4ce169 | 27 | int g_gps_cks_errors = 0; |
Backstrom | 0:f6e68b4ce169 | 28 | int g_gps_parse_errors = 0; |
Backstrom | 0:f6e68b4ce169 | 29 | int g_gps_time_errors = 0; |
Backstrom | 0:f6e68b4ce169 | 30 | |
Backstrom | 0:f6e68b4ce169 | 31 | unsigned long tGPSupdate; |
Backstrom | 0:f6e68b4ce169 | 32 | |
Backstrom | 0:f6e68b4ce169 | 33 | // we double buffer: read into one line and leave one for the main program |
Backstrom | 0:f6e68b4ce169 | 34 | //volatile char gpsBuffer1[GPSBUFFERSIZE]; |
Backstrom | 0:f6e68b4ce169 | 35 | //volatile char gpsBuffer2[GPSBUFFERSIZE]; |
Backstrom | 0:f6e68b4ce169 | 36 | volatile char* gpsBuffer1; |
Backstrom | 0:f6e68b4ce169 | 37 | volatile char* gpsBuffer2; |
Backstrom | 0:f6e68b4ce169 | 38 | |
Backstrom | 0:f6e68b4ce169 | 39 | // our index into filling the current line |
Backstrom | 0:f6e68b4ce169 | 40 | volatile uint8_t gpsBufferPtr; |
Backstrom | 0:f6e68b4ce169 | 41 | // pointers to the double buffers |
Backstrom | 0:f6e68b4ce169 | 42 | volatile char *gpsNextBuffer; |
Backstrom | 0:f6e68b4ce169 | 43 | volatile char *gpsLastBuffer; |
Backstrom | 0:f6e68b4ce169 | 44 | volatile uint8_t gpsDataReady_; |
Backstrom | 0:f6e68b4ce169 | 45 | |
Backstrom | 0:f6e68b4ce169 | 46 | time_t tLast = 0; // for checking GPS messages |
Backstrom | 0:f6e68b4ce169 | 47 | |
Backstrom | 0:f6e68b4ce169 | 48 | void GPSread() |
Backstrom | 0:f6e68b4ce169 | 49 | { |
Backstrom | 0:f6e68b4ce169 | 50 | char c = gps->getc(); |
Backstrom | 0:f6e68b4ce169 | 51 | |
Backstrom | 0:f6e68b4ce169 | 52 | if (c == '$') { |
Backstrom | 0:f6e68b4ce169 | 53 | gpsNextBuffer[gpsBufferPtr] = 0; |
Backstrom | 0:f6e68b4ce169 | 54 | gpsBufferPtr = 0; |
Backstrom | 0:f6e68b4ce169 | 55 | } |
Backstrom | 0:f6e68b4ce169 | 56 | if (c == '\n') { // newline marks end of sentence |
Backstrom | 0:f6e68b4ce169 | 57 | gpsNextBuffer[gpsBufferPtr] = 0; // terminate string |
Backstrom | 0:f6e68b4ce169 | 58 | if (gpsNextBuffer == gpsBuffer1) { // switch buffers |
Backstrom | 0:f6e68b4ce169 | 59 | gpsNextBuffer = gpsBuffer2; |
Backstrom | 0:f6e68b4ce169 | 60 | gpsLastBuffer = gpsBuffer1; |
Backstrom | 0:f6e68b4ce169 | 61 | } else { |
Backstrom | 0:f6e68b4ce169 | 62 | gpsNextBuffer = gpsBuffer1; |
Backstrom | 0:f6e68b4ce169 | 63 | gpsLastBuffer = gpsBuffer2; |
Backstrom | 0:f6e68b4ce169 | 64 | } |
Backstrom | 0:f6e68b4ce169 | 65 | gpsBufferPtr = 0; |
Backstrom | 0:f6e68b4ce169 | 66 | gpsDataReady_ = true; // signal data ready |
Backstrom | 0:f6e68b4ce169 | 67 | } |
Backstrom | 0:f6e68b4ce169 | 68 | |
Backstrom | 0:f6e68b4ce169 | 69 | gpsNextBuffer[gpsBufferPtr++] = c; // add char to current buffer, then increment index |
Backstrom | 0:f6e68b4ce169 | 70 | if (gpsBufferPtr >= GPSBUFFERSIZE) // if buffer full |
Backstrom | 0:f6e68b4ce169 | 71 | gpsBufferPtr = GPSBUFFERSIZE-1; // decrement index to make room (overrun) |
Backstrom | 0:f6e68b4ce169 | 72 | } |
Backstrom | 0:f6e68b4ce169 | 73 | |
Backstrom | 0:f6e68b4ce169 | 74 | uint8_t gpsDataReady(void) { |
Backstrom | 0:f6e68b4ce169 | 75 | return gpsDataReady_; |
Backstrom | 0:f6e68b4ce169 | 76 | } |
Backstrom | 0:f6e68b4ce169 | 77 | |
Backstrom | 0:f6e68b4ce169 | 78 | char *gpsNMEA(void) { |
Backstrom | 0:f6e68b4ce169 | 79 | gpsDataReady_ = false; |
Backstrom | 0:f6e68b4ce169 | 80 | return (char *)gpsLastBuffer; |
Backstrom | 0:f6e68b4ce169 | 81 | } |
Backstrom | 0:f6e68b4ce169 | 82 | |
Backstrom | 0:f6e68b4ce169 | 83 | uint32_t parsedecimal(char *str, uint8_t len) { |
Backstrom | 0:f6e68b4ce169 | 84 | uint32_t d = 0; |
Backstrom | 0:f6e68b4ce169 | 85 | for (uint8_t i=0; i<len; i++) { |
Backstrom | 0:f6e68b4ce169 | 86 | if ((str[i] > '9') || (str[0] < '0')) |
Backstrom | 0:f6e68b4ce169 | 87 | return d; // no more digits |
Backstrom | 0:f6e68b4ce169 | 88 | d = (d*10) + (str[i] - '0'); |
Backstrom | 0:f6e68b4ce169 | 89 | } |
Backstrom | 0:f6e68b4ce169 | 90 | return d; |
Backstrom | 0:f6e68b4ce169 | 91 | } |
Backstrom | 0:f6e68b4ce169 | 92 | |
Backstrom | 0:f6e68b4ce169 | 93 | int32_t _abs(int32_t a) { |
Backstrom | 0:f6e68b4ce169 | 94 | if (a < 0) return -a; |
Backstrom | 0:f6e68b4ce169 | 95 | return a; |
Backstrom | 0:f6e68b4ce169 | 96 | } |
Backstrom | 0:f6e68b4ce169 | 97 | |
Backstrom | 0:f6e68b4ce169 | 98 | const char hex[17] = "0123456789ABCDEF"; |
Backstrom | 0:f6e68b4ce169 | 99 | |
Backstrom | 0:f6e68b4ce169 | 100 | uint8_t atoh(char x) { |
Backstrom | 0:f6e68b4ce169 | 101 | return (strchr(hex, x) - hex); |
Backstrom | 0:f6e68b4ce169 | 102 | } |
Backstrom | 0:f6e68b4ce169 | 103 | |
Backstrom | 0:f6e68b4ce169 | 104 | uint32_t hex2i(char *str, uint8_t len) { |
Backstrom | 0:f6e68b4ce169 | 105 | uint32_t d = 0; |
Backstrom | 0:f6e68b4ce169 | 106 | for (uint8_t i=0; i<len; i++) { |
Backstrom | 0:f6e68b4ce169 | 107 | d = (d*10) + (strchr(hex, str[i]) - hex); |
Backstrom | 0:f6e68b4ce169 | 108 | } |
Backstrom | 0:f6e68b4ce169 | 109 | return d; |
Backstrom | 0:f6e68b4ce169 | 110 | } |
Backstrom | 0:f6e68b4ce169 | 111 | |
Backstrom | 0:f6e68b4ce169 | 112 | // find next token in GPS string - find next comma, then point to following char |
Backstrom | 0:f6e68b4ce169 | 113 | char * ntok ( char *ptr ) { |
Backstrom | 0:f6e68b4ce169 | 114 | ptr = strchr(ptr, ','); // Find the next comma |
Backstrom | 0:f6e68b4ce169 | 115 | if (ptr == NULL) return NULL; |
Backstrom | 0:f6e68b4ce169 | 116 | ptr++; // point at next char after comma |
Backstrom | 0:f6e68b4ce169 | 117 | return ptr; |
Backstrom | 0:f6e68b4ce169 | 118 | } |
Backstrom | 0:f6e68b4ce169 | 119 | |
Backstrom | 0:f6e68b4ce169 | 120 | // 225446 Time of fix 22:54:46 UTC |
Backstrom | 0:f6e68b4ce169 | 121 | // A Navigation receiver warning A = OK, V = warning |
Backstrom | 0:f6e68b4ce169 | 122 | // 4916.45,N Latitude 49 deg. 16.45 min North |
Backstrom | 0:f6e68b4ce169 | 123 | // 12311.12,W Longitude 123 deg. 11.12 min West |
Backstrom | 0:f6e68b4ce169 | 124 | // 000.5 Speed over ground, Knots |
Backstrom | 0:f6e68b4ce169 | 125 | // 054.7 Course Made Good, True |
Backstrom | 0:f6e68b4ce169 | 126 | // 191194 Date of fix 19 November 1994 |
Backstrom | 0:f6e68b4ce169 | 127 | // 020.3,E Magnetic variation 20.3 deg East |
Backstrom | 0:f6e68b4ce169 | 128 | // *68 mandatory checksum |
Backstrom | 0:f6e68b4ce169 | 129 | |
Backstrom | 0:f6e68b4ce169 | 130 | //$GPRMC,225446.000,A,4916.45,N,12311.12,W,000.5,054.7,191194,020.3,E*68\r\n |
Backstrom | 0:f6e68b4ce169 | 131 | // 0 1 2 3 4 5 6 7 |
Backstrom | 0:f6e68b4ce169 | 132 | // 0123456789012345678901234567890123456789012345678901234567890123456789012 |
Backstrom | 0:f6e68b4ce169 | 133 | // 0 1 2 3 4 5 6 7 8 9 10 11 12 |
Backstrom | 0:f6e68b4ce169 | 134 | time_t parseGPSdata(char *gpsBuffer, bool& error, bool& fix, int8_t tzh, uint8_t tzm) { |
Backstrom | 0:f6e68b4ce169 | 135 | time_t tNow; |
Backstrom | 0:f6e68b4ce169 | 136 | struct tm tm; |
Backstrom | 0:f6e68b4ce169 | 137 | uint8_t gpsCheck1, gpsCheck2; // checksums |
Backstrom | 0:f6e68b4ce169 | 138 | |
Backstrom | 0:f6e68b4ce169 | 139 | char gpsFixStat; // fix status |
Backstrom | 0:f6e68b4ce169 | 140 | // char gpsLat[7]; // ddmm.ff (with decimal point) |
Backstrom | 0:f6e68b4ce169 | 141 | // char gpsLatH; // hemisphere |
Backstrom | 0:f6e68b4ce169 | 142 | // char gpsLong[8]; // dddmm.ff (with decimal point) |
Backstrom | 0:f6e68b4ce169 | 143 | // char gpsLongH; // hemisphere |
Backstrom | 0:f6e68b4ce169 | 144 | // char gpsSpeed[5]; // speed over ground |
Backstrom | 0:f6e68b4ce169 | 145 | // char gpsCourse[5]; // Course |
Backstrom | 0:f6e68b4ce169 | 146 | // char gpsDate[6]; // Date |
Backstrom | 0:f6e68b4ce169 | 147 | // char gpsMagV[5]; // Magnetic variation |
Backstrom | 0:f6e68b4ce169 | 148 | // char gpsMagD; // Mag var E/W |
Backstrom | 0:f6e68b4ce169 | 149 | // char gpsCKS[2]; // Checksum without asterisk |
Backstrom | 0:f6e68b4ce169 | 150 | |
Backstrom | 0:f6e68b4ce169 | 151 | error = false; |
Backstrom | 0:f6e68b4ce169 | 152 | fix = false; |
Backstrom | 0:f6e68b4ce169 | 153 | |
Backstrom | 0:f6e68b4ce169 | 154 | char *ptr; |
Backstrom | 0:f6e68b4ce169 | 155 | uint32_t tmp; |
Backstrom | 0:f6e68b4ce169 | 156 | if ( strncmp( gpsBuffer, "$GPRMC,", 7 ) == 0 ) { |
Backstrom | 0:f6e68b4ce169 | 157 | //Calculate checksum from the received data |
Backstrom | 0:f6e68b4ce169 | 158 | ptr = &gpsBuffer[1]; // start at the "G" |
Backstrom | 0:f6e68b4ce169 | 159 | gpsCheck1 = 0; // init collector |
Backstrom | 0:f6e68b4ce169 | 160 | |
Backstrom | 0:f6e68b4ce169 | 161 | // Loop through entire string, XORing each character to the next |
Backstrom | 0:f6e68b4ce169 | 162 | while (*ptr != '*') // count all the bytes up to the asterisk |
Backstrom | 0:f6e68b4ce169 | 163 | { |
Backstrom | 0:f6e68b4ce169 | 164 | gpsCheck1 ^= *ptr; |
Backstrom | 0:f6e68b4ce169 | 165 | ptr++; |
Backstrom | 0:f6e68b4ce169 | 166 | if (ptr>(gpsBuffer+GPSBUFFERSIZE)) goto GPSerrorP; // extra sanity check, can't hurt... |
Backstrom | 0:f6e68b4ce169 | 167 | } |
Backstrom | 0:f6e68b4ce169 | 168 | // now get the checksum from the string itself, which is in hex |
Backstrom | 0:f6e68b4ce169 | 169 | gpsCheck2 = atoh(*(ptr+1)) * 16 + atoh(*(ptr+2)); |
Backstrom | 0:f6e68b4ce169 | 170 | |
Backstrom | 0:f6e68b4ce169 | 171 | if (gpsCheck1 == gpsCheck2) { // if checksums match, process the data |
Backstrom | 0:f6e68b4ce169 | 172 | ptr = &gpsBuffer[1]; // start at beginning of buffer |
Backstrom | 0:f6e68b4ce169 | 173 | ptr = ntok(ptr); // Find the time string |
Backstrom | 0:f6e68b4ce169 | 174 | if (ptr == NULL) goto GPSerrorP; |
Backstrom | 0:f6e68b4ce169 | 175 | char *p2 = strchr(ptr, ','); // find comma after Time |
Backstrom | 0:f6e68b4ce169 | 176 | if (p2 == NULL) goto GPSerrorP; |
Backstrom | 0:f6e68b4ce169 | 177 | if (p2 < (ptr+6)) goto GPSerrorP; // Time must be at least 6 chars |
Backstrom | 0:f6e68b4ce169 | 178 | tmp = parsedecimal(ptr, 6); // parse integer portion |
Backstrom | 0:f6e68b4ce169 | 179 | tm.tm_hour = tmp / 10000; |
Backstrom | 0:f6e68b4ce169 | 180 | tm.tm_min = (tmp / 100) % 100; |
Backstrom | 0:f6e68b4ce169 | 181 | tm.tm_sec = tmp % 100; |
Backstrom | 0:f6e68b4ce169 | 182 | ptr = ntok(ptr); // Find the next token - Status |
Backstrom | 0:f6e68b4ce169 | 183 | if (ptr == NULL) goto GPSerrorP; |
Backstrom | 0:f6e68b4ce169 | 184 | gpsFixStat = ptr[0]; |
Backstrom | 0:f6e68b4ce169 | 185 | if (gpsFixStat == 'A') { // if data valid, parse time & date |
Backstrom | 0:f6e68b4ce169 | 186 | fix = true; |
Backstrom | 0:f6e68b4ce169 | 187 | |
Backstrom | 0:f6e68b4ce169 | 188 | for (uint8_t n=0; n<7; n++) { // skip 6 tokend, find date |
Backstrom | 0:f6e68b4ce169 | 189 | ptr = ntok(ptr); // Find the next token |
Backstrom | 0:f6e68b4ce169 | 190 | if (ptr == NULL) goto GPSerrorP; // error if not found |
Backstrom | 0:f6e68b4ce169 | 191 | } |
Backstrom | 0:f6e68b4ce169 | 192 | p2 = strchr(ptr, ','); // find comma after Date |
Backstrom | 0:f6e68b4ce169 | 193 | if (p2 == NULL) goto GPSerrorP; |
Backstrom | 0:f6e68b4ce169 | 194 | if (p2 != (ptr+6)) goto GPSerrorP; // check date length |
Backstrom | 0:f6e68b4ce169 | 195 | tmp = parsedecimal(ptr, 6); |
Backstrom | 0:f6e68b4ce169 | 196 | tm.tm_mday = tmp / 10000; |
Backstrom | 0:f6e68b4ce169 | 197 | tm.tm_mon = ((tmp / 100) % 100) - 1; // zero offset for month |
Backstrom | 0:f6e68b4ce169 | 198 | tm.tm_year = tmp % 100; |
Backstrom | 0:f6e68b4ce169 | 199 | |
Backstrom | 0:f6e68b4ce169 | 200 | ptr = strchr(ptr, '*'); // Find Checksum |
Backstrom | 0:f6e68b4ce169 | 201 | if (ptr == NULL) goto GPSerrorP; |
Backstrom | 0:f6e68b4ce169 | 202 | |
Backstrom | 0:f6e68b4ce169 | 203 | tm.tm_year = y2kYearToTm(tm.tm_year); // convert yy year to (yyyy-1900) (add 100) |
Backstrom | 0:f6e68b4ce169 | 204 | tNow = mktime(&tm); // convert to time_t - seconds since 0/0/1970 |
Backstrom | 0:f6e68b4ce169 | 205 | |
Backstrom | 0:f6e68b4ce169 | 206 | // If time jumps by more than a minute, complain about it. Either poor GPS signal or an error in the data |
Backstrom | 0:f6e68b4ce169 | 207 | if ( (tLast>0) && (_abs(tNow - tLast)>60) ) // Beep if over 60 seconds since last GPRMC? |
Backstrom | 0:f6e68b4ce169 | 208 | { |
Backstrom | 0:f6e68b4ce169 | 209 | goto GPSerrorT; // it's probably an error |
Backstrom | 0:f6e68b4ce169 | 210 | } |
Backstrom | 0:f6e68b4ce169 | 211 | else { |
Backstrom | 0:f6e68b4ce169 | 212 | tLast = tNow; |
Backstrom | 0:f6e68b4ce169 | 213 | tNow = tNow + (long)(tzh) * SECS_PER_HOUR + (long)tzm; |
Backstrom | 0:f6e68b4ce169 | 214 | |
Backstrom | 0:f6e68b4ce169 | 215 | } |
Backstrom | 0:f6e68b4ce169 | 216 | } // if fix status is A |
Backstrom | 0:f6e68b4ce169 | 217 | } // if checksums match |
Backstrom | 0:f6e68b4ce169 | 218 | else // checksums do not match |
Backstrom | 0:f6e68b4ce169 | 219 | goto GPSerrorC; |
Backstrom | 0:f6e68b4ce169 | 220 | |
Backstrom | 0:f6e68b4ce169 | 221 | return tNow; |
Backstrom | 0:f6e68b4ce169 | 222 | |
Backstrom | 0:f6e68b4ce169 | 223 | GPSerrorC: |
Backstrom | 0:f6e68b4ce169 | 224 | g_gps_cks_errors++; // increment error count |
Backstrom | 0:f6e68b4ce169 | 225 | goto GPSerror2a; |
Backstrom | 0:f6e68b4ce169 | 226 | GPSerrorP: |
Backstrom | 0:f6e68b4ce169 | 227 | g_gps_parse_errors++; // increment error count |
Backstrom | 0:f6e68b4ce169 | 228 | goto GPSerror2a; |
Backstrom | 0:f6e68b4ce169 | 229 | GPSerrorT: |
Backstrom | 0:f6e68b4ce169 | 230 | #ifdef HAVE_SERIAL_DEBUG |
Backstrom | 0:f6e68b4ce169 | 231 | tDelta = tNow - tGPSupdate; |
Backstrom | 0:f6e68b4ce169 | 232 | Serial.print("tNow="); Serial.print(tNow); Serial.print(", tLast="); Serial.print(tLast); Serial.print(", diff="); Serial.print(tNow-tLast); |
Backstrom | 0:f6e68b4ce169 | 233 | Serial.print(", tDelta="); Serial.print(tDelta); |
Backstrom | 0:f6e68b4ce169 | 234 | Serial.println(" "); |
Backstrom | 0:f6e68b4ce169 | 235 | #endif |
Backstrom | 0:f6e68b4ce169 | 236 | g_gps_time_errors++; // increment error count |
Backstrom | 0:f6e68b4ce169 | 237 | tLast = tNow; // save new time |
Backstrom | 0:f6e68b4ce169 | 238 | |
Backstrom | 0:f6e68b4ce169 | 239 | GPSerror2a: |
Backstrom | 0:f6e68b4ce169 | 240 | strcpy(gpsBuffer, ""); // wipe GPS buffer |
Backstrom | 0:f6e68b4ce169 | 241 | } // if "$GPRMC" |
Backstrom | 0:f6e68b4ce169 | 242 | |
Backstrom | 0:f6e68b4ce169 | 243 | error = true; |
Backstrom | 0:f6e68b4ce169 | 244 | return 0; |
Backstrom | 0:f6e68b4ce169 | 245 | } |
Backstrom | 0:f6e68b4ce169 | 246 | |
Backstrom | 0:f6e68b4ce169 | 247 | void gps_init() { |
Backstrom | 0:f6e68b4ce169 | 248 | gps = new Serial(P1_13, P1_14); |
Backstrom | 0:f6e68b4ce169 | 249 | gps->attach(&GPSread); |
Backstrom | 0:f6e68b4ce169 | 250 | |
Backstrom | 0:f6e68b4ce169 | 251 | gpsBuffer1 = new char[GPSBUFFERSIZE]; |
Backstrom | 0:f6e68b4ce169 | 252 | gpsBuffer2 = new char[GPSBUFFERSIZE]; |
Backstrom | 0:f6e68b4ce169 | 253 | |
Backstrom | 0:f6e68b4ce169 | 254 | tGPSupdate = 0; // reset GPS last update time |
Backstrom | 0:f6e68b4ce169 | 255 | gpsDataReady_ = false; |
Backstrom | 0:f6e68b4ce169 | 256 | gpsBufferPtr = 0; |
Backstrom | 0:f6e68b4ce169 | 257 | gpsNextBuffer = gpsBuffer1; |
Backstrom | 0:f6e68b4ce169 | 258 | gpsLastBuffer = gpsBuffer2; |
Backstrom | 0:f6e68b4ce169 | 259 | } |
Backstrom | 0:f6e68b4ce169 | 260 | |
Backstrom | 0:f6e68b4ce169 | 261 | #endif // HAVE_GPS |