Colin Stearns
/
dgps
WIP for dgps
main.cpp@6:f0248eb6714d, 2014-04-03 (annotated)
- Committer:
- dylanembed123
- Date:
- Thu Apr 03 16:27:23 2014 +0000
- Revision:
- 6:f0248eb6714d
- Parent:
- 4:c75d5e5e6bfc
Fix compile errors;
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
stearnsc | 0:9c001c4e7bf4 | 1 | #include "mbed.h" |
stearnsc | 0:9c001c4e7bf4 | 2 | #include <string> |
stearnsc | 0:9c001c4e7bf4 | 3 | #include <sstream> |
dylanembed123 | 4:c75d5e5e6bfc | 4 | #include "adapt/usb.h" |
dylanembed123 | 4:c75d5e5e6bfc | 5 | #include "adapt/camera.h" |
dylanembed123 | 6:f0248eb6714d | 6 | #include "handle/handleCamera.h" |
dylanembed123 | 6:f0248eb6714d | 7 | #include "handle/handleGPS.h" |
dylanembed123 | 3:434d20e99e49 | 8 | /* |
stearnsc | 0:9c001c4e7bf4 | 9 | Serial pc(USBTX,USBRX); |
stearnsc | 0:9c001c4e7bf4 | 10 | Serial xbee(p9,p10);//tx, rx |
stearnsc | 0:9c001c4e7bf4 | 11 | Serial gps(p28,p27); |
dylanembed123 | 3:434d20e99e49 | 12 | Serial camera(p13,p14); |
stearnsc | 0:9c001c4e7bf4 | 13 | |
stearnsc | 0:9c001c4e7bf4 | 14 | typedef struct { |
stearnsc | 0:9c001c4e7bf4 | 15 | int latitude; //in .0001 minutes |
stearnsc | 0:9c001c4e7bf4 | 16 | int longitude; //in .0001 minutes |
stearnsc | 0:9c001c4e7bf4 | 17 | int altitude; //in decimeters |
stearnsc | 0:9c001c4e7bf4 | 18 | int time; //in milliseconds |
stearnsc | 0:9c001c4e7bf4 | 19 | } GpsData; |
stearnsc | 0:9c001c4e7bf4 | 20 | |
stearnsc | 0:9c001c4e7bf4 | 21 | GpsData gpsData; |
stearnsc | 0:9c001c4e7bf4 | 22 | GpsData otherGps; |
stearnsc | 0:9c001c4e7bf4 | 23 | |
stearnsc | 0:9c001c4e7bf4 | 24 | void readSerial(Serial &s, char str[], int size){ |
stearnsc | 0:9c001c4e7bf4 | 25 | for (int i = 0; i < size; i++){ |
stearnsc | 0:9c001c4e7bf4 | 26 | str[i] = s.getc(); |
stearnsc | 0:9c001c4e7bf4 | 27 | } |
stearnsc | 0:9c001c4e7bf4 | 28 | } |
stearnsc | 0:9c001c4e7bf4 | 29 | |
stearnsc | 0:9c001c4e7bf4 | 30 | //sends: "$<command>*<checksum>\r\l" |
stearnsc | 0:9c001c4e7bf4 | 31 | void sendGpsCommand(string command){ |
stearnsc | 0:9c001c4e7bf4 | 32 | uint8_t checksum = 0; |
stearnsc | 0:9c001c4e7bf4 | 33 | pc.printf("Sending command to gps: "); |
stearnsc | 0:9c001c4e7bf4 | 34 | gps.putc('$'); |
stearnsc | 0:9c001c4e7bf4 | 35 | pc.putc('$'); |
stearnsc | 0:9c001c4e7bf4 | 36 | char c; |
stearnsc | 0:9c001c4e7bf4 | 37 | for (int i = 0; i < command.length(); i++){ |
stearnsc | 0:9c001c4e7bf4 | 38 | c = command[i]; |
stearnsc | 0:9c001c4e7bf4 | 39 | checksum ^= c; |
stearnsc | 0:9c001c4e7bf4 | 40 | gps.putc(c); |
stearnsc | 0:9c001c4e7bf4 | 41 | pc.putc(c); |
stearnsc | 0:9c001c4e7bf4 | 42 | } |
stearnsc | 0:9c001c4e7bf4 | 43 | gps.putc('*'); |
stearnsc | 0:9c001c4e7bf4 | 44 | pc.putc('*'); |
stearnsc | 0:9c001c4e7bf4 | 45 | string checkSumString; |
stearnsc | 0:9c001c4e7bf4 | 46 | while (checksum > 0){ |
stearnsc | 0:9c001c4e7bf4 | 47 | uint8_t checksumChar = checksum & 0x0F; |
stearnsc | 0:9c001c4e7bf4 | 48 | if (checksumChar >= 10){ |
stearnsc | 0:9c001c4e7bf4 | 49 | checksumChar -= 10; |
stearnsc | 0:9c001c4e7bf4 | 50 | checksumChar += 'A'; |
stearnsc | 0:9c001c4e7bf4 | 51 | } else { |
stearnsc | 0:9c001c4e7bf4 | 52 | checksumChar += '0'; |
stearnsc | 0:9c001c4e7bf4 | 53 | } |
stearnsc | 0:9c001c4e7bf4 | 54 | checkSumString.push_back((char) checksumChar); |
stearnsc | 0:9c001c4e7bf4 | 55 | checksum = checksum >> 4; |
stearnsc | 0:9c001c4e7bf4 | 56 | } |
stearnsc | 0:9c001c4e7bf4 | 57 | |
stearnsc | 0:9c001c4e7bf4 | 58 | for (int i = checkSumString.length() - 1; i >= 0; i--){ |
stearnsc | 0:9c001c4e7bf4 | 59 | gps.putc(checkSumString[i]); |
stearnsc | 0:9c001c4e7bf4 | 60 | pc.putc(checkSumString[i]); |
stearnsc | 0:9c001c4e7bf4 | 61 | } |
stearnsc | 0:9c001c4e7bf4 | 62 | gps.putc('\r'); |
stearnsc | 0:9c001c4e7bf4 | 63 | pc.putc('\r'); |
stearnsc | 0:9c001c4e7bf4 | 64 | gps.putc('\n'); |
stearnsc | 0:9c001c4e7bf4 | 65 | pc.putc('\n'); |
stearnsc | 0:9c001c4e7bf4 | 66 | } |
stearnsc | 0:9c001c4e7bf4 | 67 | |
stearnsc | 0:9c001c4e7bf4 | 68 | long parseDec(string s){ |
stearnsc | 0:9c001c4e7bf4 | 69 | int mult = 1; |
stearnsc | 0:9c001c4e7bf4 | 70 | int result = 0; |
stearnsc | 0:9c001c4e7bf4 | 71 | for (int i = s.length() - 1; i >=0; i--){ |
stearnsc | 0:9c001c4e7bf4 | 72 | if (s[i] != '.'){ |
stearnsc | 0:9c001c4e7bf4 | 73 | result += (s[i] - '0') * mult; |
stearnsc | 0:9c001c4e7bf4 | 74 | mult *= 10; |
stearnsc | 0:9c001c4e7bf4 | 75 | } |
stearnsc | 0:9c001c4e7bf4 | 76 | } |
stearnsc | 0:9c001c4e7bf4 | 77 | return result; |
stearnsc | 0:9c001c4e7bf4 | 78 | } |
stearnsc | 0:9c001c4e7bf4 | 79 | |
stearnsc | 0:9c001c4e7bf4 | 80 | //cs: little endian parsing |
stearnsc | 0:9c001c4e7bf4 | 81 | int nextInt(char *data, int i){ |
stearnsc | 0:9c001c4e7bf4 | 82 | i |= data[i]; |
stearnsc | 0:9c001c4e7bf4 | 83 | i |= (data[i + 1] << 8); |
stearnsc | 0:9c001c4e7bf4 | 84 | i |= (data[i + 2] << 16); |
stearnsc | 0:9c001c4e7bf4 | 85 | i |= (data[i + 3] << 24); |
stearnsc | 0:9c001c4e7bf4 | 86 | return i; |
stearnsc | 0:9c001c4e7bf4 | 87 | } |
stearnsc | 0:9c001c4e7bf4 | 88 | |
stearnsc | 0:9c001c4e7bf4 | 89 | void handleXbeeGps(){ |
stearnsc | 0:9c001c4e7bf4 | 90 | static bool reading = false; |
stearnsc | 0:9c001c4e7bf4 | 91 | static char packet[16]; |
stearnsc | 0:9c001c4e7bf4 | 92 | static int i = 0; |
stearnsc | 0:9c001c4e7bf4 | 93 | |
stearnsc | 0:9c001c4e7bf4 | 94 | char c = xbee.getc(); |
stearnsc | 0:9c001c4e7bf4 | 95 | if (reading){ |
stearnsc | 0:9c001c4e7bf4 | 96 | packet[i] = c; |
stearnsc | 0:9c001c4e7bf4 | 97 | i++; |
stearnsc | 0:9c001c4e7bf4 | 98 | if (i == 16){ |
stearnsc | 0:9c001c4e7bf4 | 99 | i = 0; |
stearnsc | 0:9c001c4e7bf4 | 100 | otherGps.latitude = nextInt(packet, 0); |
stearnsc | 0:9c001c4e7bf4 | 101 | otherGps.longitude = nextInt(packet, 4); |
stearnsc | 0:9c001c4e7bf4 | 102 | otherGps.altitude = nextInt(packet, 8); |
stearnsc | 0:9c001c4e7bf4 | 103 | otherGps.time = nextInt(packet, 12); |
stearnsc | 0:9c001c4e7bf4 | 104 | |
stearnsc | 0:9c001c4e7bf4 | 105 | pc.printf("His GPS data: Lat: %d, Lon: %d, Alt: %d, Time:%d\r\n", |
stearnsc | 0:9c001c4e7bf4 | 106 | otherGps.latitude, otherGps.longitude, otherGps.altitude, otherGps.time |
stearnsc | 0:9c001c4e7bf4 | 107 | ); |
stearnsc | 0:9c001c4e7bf4 | 108 | reading = false; |
stearnsc | 0:9c001c4e7bf4 | 109 | } |
stearnsc | 0:9c001c4e7bf4 | 110 | } else if (c == 'X'){ |
stearnsc | 0:9c001c4e7bf4 | 111 | reading = true; |
stearnsc | 0:9c001c4e7bf4 | 112 | } |
stearnsc | 0:9c001c4e7bf4 | 113 | } |
stearnsc | 0:9c001c4e7bf4 | 114 | |
stearnsc | 0:9c001c4e7bf4 | 115 | void handleGpsData(){ |
stearnsc | 0:9c001c4e7bf4 | 116 | static bool reading = false; |
stearnsc | 0:9c001c4e7bf4 | 117 | static stringstream line; |
stearnsc | 0:9c001c4e7bf4 | 118 | |
stearnsc | 0:9c001c4e7bf4 | 119 | char c = gps.getc(); |
stearnsc | 0:9c001c4e7bf4 | 120 | |
stearnsc | 0:9c001c4e7bf4 | 121 | if (reading){ |
stearnsc | 0:9c001c4e7bf4 | 122 | if (c == '*'){ //sentence buffer complete; we're ignoring the checksum |
stearnsc | 0:9c001c4e7bf4 | 123 | string field; |
stearnsc | 0:9c001c4e7bf4 | 124 | std::getline(line, field, ','); //GPGGA |
stearnsc | 0:9c001c4e7bf4 | 125 | std::getline(line, field, ','); //time |
stearnsc | 0:9c001c4e7bf4 | 126 | gpsData.time = parseDec(field); |
stearnsc | 0:9c001c4e7bf4 | 127 | std::getline(line, field, ','); //latitude |
stearnsc | 0:9c001c4e7bf4 | 128 | gpsData.latitude = parseDec(field); |
stearnsc | 0:9c001c4e7bf4 | 129 | std::getline(line, field, ','); //N or S |
stearnsc | 0:9c001c4e7bf4 | 130 | std::getline(line, field, ','); //longitude |
stearnsc | 0:9c001c4e7bf4 | 131 | gpsData.longitude = parseDec(field); |
stearnsc | 0:9c001c4e7bf4 | 132 | std::getline(line, field, ','); //E or W |
stearnsc | 0:9c001c4e7bf4 | 133 | std::getline(line, field, ','); //skip |
stearnsc | 0:9c001c4e7bf4 | 134 | std::getline(line, field, ','); //skip |
stearnsc | 0:9c001c4e7bf4 | 135 | std::getline(line, field, ','); //skip |
stearnsc | 0:9c001c4e7bf4 | 136 | std::getline(line, field, ','); //altitude |
stearnsc | 0:9c001c4e7bf4 | 137 | gpsData.altitude = parseDec(field); |
stearnsc | 0:9c001c4e7bf4 | 138 | |
stearnsc | 0:9c001c4e7bf4 | 139 | //update whatever needs updating when gps updates |
stearnsc | 0:9c001c4e7bf4 | 140 | pc.printf("My GPS data: Lat: %d, Lon: %d, Alt: %d, Time:%d\r\n", |
stearnsc | 0:9c001c4e7bf4 | 141 | gpsData.latitude, gpsData.longitude, gpsData.altitude, gpsData.time |
stearnsc | 0:9c001c4e7bf4 | 142 | ); |
stearnsc | 0:9c001c4e7bf4 | 143 | |
stearnsc | 0:9c001c4e7bf4 | 144 | line.str(string("")); |
stearnsc | 0:9c001c4e7bf4 | 145 | reading = false; |
stearnsc | 0:9c001c4e7bf4 | 146 | |
stearnsc | 0:9c001c4e7bf4 | 147 | } else { |
stearnsc | 0:9c001c4e7bf4 | 148 | line.put(c); |
stearnsc | 0:9c001c4e7bf4 | 149 | } |
stearnsc | 0:9c001c4e7bf4 | 150 | |
stearnsc | 0:9c001c4e7bf4 | 151 | } else if (c == '$') { |
stearnsc | 0:9c001c4e7bf4 | 152 | reading = true; |
stearnsc | 0:9c001c4e7bf4 | 153 | } |
stearnsc | 0:9c001c4e7bf4 | 154 | } |
dylanembed123 | 4:c75d5e5e6bfc | 155 | |
dylanembed123 | 4:c75d5e5e6bfc | 156 | |
dylanembed123 | 3:434d20e99e49 | 157 | */ |
dylanembed123 | 4:c75d5e5e6bfc | 158 | Serial gps(p28,p27); |
dylanembed123 | 4:c75d5e5e6bfc | 159 | |
stearnsc | 0:9c001c4e7bf4 | 160 | int main(){ |
dylanembed123 | 4:c75d5e5e6bfc | 161 | ImageHandle imageHand; |
dylanembed123 | 6:f0248eb6714d | 162 | GPSHandle gpsHand; |
dylanembed123 | 4:c75d5e5e6bfc | 163 | |
dylanembed123 | 4:c75d5e5e6bfc | 164 | /// Main Loop |
dylanembed123 | 4:c75d5e5e6bfc | 165 | while(1){ |
dylanembed123 | 4:c75d5e5e6bfc | 166 | // Run image handler |
dylanembed123 | 4:c75d5e5e6bfc | 167 | imageHand.run(); |
dylanembed123 | 4:c75d5e5e6bfc | 168 | // Run GPS handler |
dylanembed123 | 4:c75d5e5e6bfc | 169 | gpsHand.run(); |
dylanembed123 | 3:434d20e99e49 | 170 | } |
dylanembed123 | 4:c75d5e5e6bfc | 171 | |
dylanembed123 | 4:c75d5e5e6bfc | 172 | USB::getSerial().printf("Start!\n"); |
dylanembed123 | 4:c75d5e5e6bfc | 173 | gps.baud(57600); |
dylanembed123 | 4:c75d5e5e6bfc | 174 | while(true){ |
dylanembed123 | 4:c75d5e5e6bfc | 175 | if(gps.readable()>0){ |
dylanembed123 | 4:c75d5e5e6bfc | 176 | char c = gps.getc(); |
dylanembed123 | 4:c75d5e5e6bfc | 177 | USB::getSerial().printf("%c",c); |
dylanembed123 | 4:c75d5e5e6bfc | 178 | } |
dylanembed123 | 3:434d20e99e49 | 179 | } |
dylanembed123 | 3:434d20e99e49 | 180 | //USB::getSerial().printf("Done(%d)\n",i); |
dylanembed123 | 3:434d20e99e49 | 181 | while(1){ |
dylanembed123 | 3:434d20e99e49 | 182 | } |
dylanembed123 | 3:434d20e99e49 | 183 | // gps.baud(57600); |
dylanembed123 | 3:434d20e99e49 | 184 | // xbee.baud(9600); |
dylanembed123 | 3:434d20e99e49 | 185 | // pc.baud(57600); |
stearnsc | 0:9c001c4e7bf4 | 186 | |
stearnsc | 0:9c001c4e7bf4 | 187 | // sendGpsCommand("PMTK301,1"); |
stearnsc | 0:9c001c4e7bf4 | 188 | // while(true){pc.putc(gps.getc());} |
dylanembed123 | 3:434d20e99e49 | 189 | // gps.attach(&handleGpsData, Serial::RxIrq); |
stearnsc | 0:9c001c4e7bf4 | 190 | // xbee.attach(&handleXbeeGps, Serial::RxIrq); |
stearnsc | 0:9c001c4e7bf4 | 191 | } |