CaryCoders / Mbed 2 deprecated zeus

basic lightning detector with gps and sd card logging

Dependencies:   AS3935 AdafruitGPS SDFileSystem TSI mbed ConfigFile

main.cpp@8:f8830b6c6d9b, 2015-06-30 (annotated)

Committer:
ftagius
Date:
Tue Jun 30 21:13:18 2015 +0000
Revision:
8:f8830b6c6d9b
Parent:
6:96b0dbe76357
Child:
9:15c9bf86d908
add code to use the rtc to keep track of time

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ftagius 0:3328df4c3116 1 #include "mbed.h"
ftagius 0:3328df4c3116 2 #include "GPS.h"
ftagius 0:3328df4c3116 3 #include "main.h"
ftagius 0:3328df4c3116 4 #include "TSISensor.h"
ftagius 0:3328df4c3116 5 #include "SDFileSystem.h"
ftagius 0:3328df4c3116 6 #include "AS3935.h"
cmkachur 6:96b0dbe76357 7 #include "ConfigFile.h"
ftagius 8:f8830b6c6d9b 8 #include "datetime.h"
ftagius 8:f8830b6c6d9b 9 #include "time.h"
cmkachur 6:96b0dbe76357 10 #include <string>
ftagius 0:3328df4c3116 11
cmkachur 6:96b0dbe76357 12 #define FW_VER 3
cmkachur 4:4d26ba1ae0f7 13
ftagius 3:e3974328d808 14 // frdm-kl25z as3935 connections for spi1
ftagius 0:3328df4c3116 15 // ------------------------------------------------
ftagius 0:3328df4c3116 16 // Header -- kl25z -- SD/MMC
ftagius 0:3328df4c3116 17 // J2-20 -- PTE1 -- MOSI
ftagius 0:3328df4c3116 18 // J9-13 -- PTE4 -- CS
ftagius 0:3328df4c3116 19 // J2-14 -- GND -- Vss (GND)
ftagius 0:3328df4c3116 20 // J9-9 -- PTE2 -- SCK
ftagius 0:3328df4c3116 21 // J9-11 -- PTE3 -- MISO
ftagius 0:3328df4c3116 22
ftagius 0:3328df4c3116 23 AS3935 ld(PTE1, PTE3, PTE2, PTE4, "ld", 1000000); // MOSI, MISO, SCK, CS, SPI bus freq (hz)
ftagius 0:3328df4c3116 24 InterruptIn IntLightning(PTA12); //IRQ AS3935
ftagius 0:3328df4c3116 25
ftagius 0:3328df4c3116 26
ftagius 0:3328df4c3116 27 // frdm-kl25z sd card connections spi0
ftagius 0:3328df4c3116 28 // ------------------------------------------------
ftagius 0:3328df4c3116 29 // Header -- kl25z -- SPI
ftagius 0:3328df4c3116 30 // J2-8 -- PTD2 -- MOSI
ftagius 0:3328df4c3116 31 // J2-6 -- PTD0 -- CS
ftagius 0:3328df4c3116 32 // J9-12 -- GND -- Vss (GND)
ftagius 0:3328df4c3116 33 // J9-4 -- P3V3 -- Vdd (+3.3v)
ftagius 0:3328df4c3116 34 // J2-12 -- PTD1 -- SCK
ftagius 0:3328df4c3116 35 // J9-14 -- GND -- Vss (GND)
ftagius 0:3328df4c3116 36 // J2-10 -- PTD3 -- MISO
ftagius 0:3328df4c3116 37
ftagius 0:3328df4c3116 38 SDFileSystem sd(PTD2, PTD3, PTD1, PTD0, "sd"); // MOSI, MISO, SCK, CS
ftagius 0:3328df4c3116 39
ftagius 0:3328df4c3116 40 Serial pc(USBTX, USBRX);
ftagius 0:3328df4c3116 41 GPS gpsd(PTE20, PTE21);
ftagius 0:3328df4c3116 42 DigitalOut red(LED_RED);
ftagius 0:3328df4c3116 43 DigitalOut green(LED_GREEN);
ftagius 0:3328df4c3116 44 //DigitalOut blue(LED_BLUE); don't use the blue led, due to a board error, writing to the blue led kills spi
ftagius 3:e3974328d808 45 bool debug=false;
cmkachur 2:3edb129c60b2 46 void writeLogFile(int interruptSource, int distance, long energy);
ftagius 1:10d2a051285e 47 char logName[]="lightning_data.csv";
ftagius 1:10d2a051285e 48 int rdistance, rinterrupt;
ftagius 1:10d2a051285e 49 char directory[]="/sd/lightning_data";
ftagius 3:e3974328d808 50 int OriginInt=-1;
cmkachur 6:96b0dbe76357 51 int gDistance=-1;
ftagius 3:e3974328d808 52 long energy=-1;
ftagius 8:f8830b6c6d9b 53 struct tm Clock;
ftagius 0:3328df4c3116 54
cmkachur 6:96b0dbe76357 55 typedef struct
cmkachur 6:96b0dbe76357 56 {
cmkachur 6:96b0dbe76357 57 unsigned int bOutdoorMode;
cmkachur 6:96b0dbe76357 58 unsigned int noiseFloor;
cmkachur 6:96b0dbe76357 59 unsigned int wdogThresh;
cmkachur 6:96b0dbe76357 60 unsigned int bClrStat;
cmkachur 6:96b0dbe76357 61 unsigned int minNumLight;
cmkachur 6:96b0dbe76357 62 unsigned int spikeRej;
cmkachur 6:96b0dbe76357 63 unsigned int maskDisturber;
cmkachur 6:96b0dbe76357 64 }sys_cfg_t;
cmkachur 6:96b0dbe76357 65
cmkachur 6:96b0dbe76357 66 // default configuration values
cmkachur 6:96b0dbe76357 67 sys_cfg_t sysCfg = { .bOutdoorMode = 1,
cmkachur 6:96b0dbe76357 68 .noiseFloor = 2,
cmkachur 6:96b0dbe76357 69 .wdogThresh = 2,
cmkachur 6:96b0dbe76357 70 .bClrStat = 0,
cmkachur 6:96b0dbe76357 71 .minNumLight = 0,
cmkachur 6:96b0dbe76357 72 .spikeRej = 2,
cmkachur 6:96b0dbe76357 73 .maskDisturber = 0,
cmkachur 6:96b0dbe76357 74 };
cmkachur 6:96b0dbe76357 75
cmkachur 6:96b0dbe76357 76
ftagius 0:3328df4c3116 77 void DetectLightning()
ftagius 0:3328df4c3116 78 {
ftagius 0:3328df4c3116 79 OriginInt = ld.interruptSource();
cmkachur 6:96b0dbe76357 80 gDistance = ld.lightningDistanceKm();
ftagius 3:e3974328d808 81 energy = ld.getEnergy();
ftagius 0:3328df4c3116 82 }
ftagius 0:3328df4c3116 83
cmkachur 2:3edb129c60b2 84 void writeLogFile(int interruptSource, int distance, long energy)
ftagius 0:3328df4c3116 85 {
ftagius 1:10d2a051285e 86 char logFilePath[128];
ftagius 0:3328df4c3116 87 static bool header=false;
ftagius 0:3328df4c3116 88 FILE *fp;
ftagius 1:10d2a051285e 89
ftagius 1:10d2a051285e 90 sprintf(logFilePath, "%s/%s", directory,logName);
ftagius 0:3328df4c3116 91 sd.mount();
ftagius 1:10d2a051285e 92 fp = fopen(logFilePath, "a");
ftagius 0:3328df4c3116 93 if(fp == NULL) {
ftagius 0:3328df4c3116 94 // retry
ftagius 3:e3974328d808 95 wait_ms(200);
ftagius 1:10d2a051285e 96 fp = fopen(logFilePath, "a");
ftagius 0:3328df4c3116 97 if (fp == NULL)
ftagius 0:3328df4c3116 98 {
ftagius 1:10d2a051285e 99 printf("Could not open file %s for writing\r\n",logFilePath);
ftagius 0:3328df4c3116 100 sd.unmount();
ftagius 1:10d2a051285e 101 printf("unmount sd card \r\n");
ftagius 0:3328df4c3116 102 return;
ftagius 0:3328df4c3116 103 }
ftagius 0:3328df4c3116 104 }
ftagius 3:e3974328d808 105 if (debug)
ftagius 3:e3974328d808 106 pc.printf("Opened log file %s\r\n",logFilePath);
ftagius 0:3328df4c3116 107 // write the log file header
ftagius 0:3328df4c3116 108 if (header == false)
ftagius 0:3328df4c3116 109 {
cmkachur 2:3edb129c60b2 110 fprintf(fp,"# date,time,raw timestamp,latitude,longitude,distance,interrupt,energy\r\n");
ftagius 0:3328df4c3116 111 header = true;
ftagius 0:3328df4c3116 112 }
ftagius 0:3328df4c3116 113 // write to the current log file
ftagius 8:f8830b6c6d9b 114 char time_str[32];
ftagius 8:f8830b6c6d9b 115 time_t seconds = time(NULL);
ftagius 8:f8830b6c6d9b 116 seconds -= 14500; // 14400 = 60*60*4, kludgy way of setting est
ftagius 8:f8830b6c6d9b 117 struct tm *tminfo = localtime(&seconds);
ftagius 8:f8830b6c6d9b 118 strftime(time_str, 32, "%m/%d/%Y,%T", tminfo);
ftagius 8:f8830b6c6d9b 119 fprintf(fp,"%s,%ld,",time_str,seconds);
ftagius 0:3328df4c3116 120 fprintf(fp,"%5.7f,%5.7f,", gpsd.lat_deg, gpsd.lon_deg);
ftagius 1:10d2a051285e 121 fprintf(fp,"%d,",distance);
cmkachur 2:3edb129c60b2 122 fprintf(fp,"%d,",interruptSource);
cmkachur 2:3edb129c60b2 123 fprintf(fp,"%ld",energy);
ftagius 0:3328df4c3116 124 fprintf(fp,"\r\n");
ftagius 0:3328df4c3116 125 fflush(fp);
ftagius 0:3328df4c3116 126 f_sync((FIL*)fp);
ftagius 0:3328df4c3116 127 fclose(fp);
ftagius 0:3328df4c3116 128 sd.unmount();
ftagius 3:e3974328d808 129 pc.printf("Event: ");
ftagius 8:f8830b6c6d9b 130 pc.printf(" %s - ", time_str);
ftagius 3:e3974328d808 131 switch (interruptSource)
ftagius 3:e3974328d808 132 {
ftagius 3:e3974328d808 133 case 1:
ftagius 3:e3974328d808 134 pc.printf("Noise level too high\r\n");
ftagius 3:e3974328d808 135 break;
ftagius 3:e3974328d808 136 case 4:
ftagius 3:e3974328d808 137 pc.printf("Disturber\r\n");
ftagius 3:e3974328d808 138 break;
ftagius 3:e3974328d808 139 case 8:
ftagius 3:e3974328d808 140 pc.printf("Lightning detection, distance=%dkm energy=%ld\r\n", distance, energy);
cmkachur 6:96b0dbe76357 141
cmkachur 6:96b0dbe76357 142 if (sysCfg.bClrStat)
cmkachur 6:96b0dbe76357 143 ld.clearStats();
ftagius 3:e3974328d808 144 break;
ftagius 3:e3974328d808 145 default:
ftagius 3:e3974328d808 146 pc.printf("Unknown interrupt %d\r\n", OriginInt);
ftagius 3:e3974328d808 147
ftagius 3:e3974328d808 148 }
ftagius 3:e3974328d808 149
ftagius 3:e3974328d808 150 if (debug)
ftagius 3:e3974328d808 151 pc.printf("Closed log file %s\r\n",logFilePath);
ftagius 0:3328df4c3116 152 }
ftagius 0:3328df4c3116 153
cmkachur 4:4d26ba1ae0f7 154
cmkachur 4:4d26ba1ae0f7 155 void writeCfgFile(unsigned char *pBuff, unsigned char buffLen, unsigned char fwVer)
cmkachur 4:4d26ba1ae0f7 156 {
cmkachur 4:4d26ba1ae0f7 157 char cfgFilePath[128];
cmkachur 4:4d26ba1ae0f7 158 FILE *fp;
cmkachur 4:4d26ba1ae0f7 159 unsigned char cnt = 0;
cmkachur 4:4d26ba1ae0f7 160
cmkachur 4:4d26ba1ae0f7 161 sprintf(cfgFilePath, "%s/%s", directory, "config_data.csv");
cmkachur 4:4d26ba1ae0f7 162 sd.mount();
cmkachur 4:4d26ba1ae0f7 163 fp = fopen(cfgFilePath, "w");
cmkachur 4:4d26ba1ae0f7 164 if(fp == NULL) {
cmkachur 4:4d26ba1ae0f7 165 // retry
cmkachur 4:4d26ba1ae0f7 166 wait_ms(200);
cmkachur 4:4d26ba1ae0f7 167 fp = fopen(cfgFilePath, "w");
cmkachur 4:4d26ba1ae0f7 168 if (fp == NULL)
cmkachur 4:4d26ba1ae0f7 169 {
cmkachur 4:4d26ba1ae0f7 170 printf("Could not open file %s for writing\r\n",cfgFilePath);
cmkachur 4:4d26ba1ae0f7 171 sd.unmount();
cmkachur 4:4d26ba1ae0f7 172 printf("unmount sd card \r\n");
cmkachur 4:4d26ba1ae0f7 173 return;
cmkachur 4:4d26ba1ae0f7 174 }
cmkachur 4:4d26ba1ae0f7 175 }
cmkachur 4:4d26ba1ae0f7 176 if (debug)
cmkachur 4:4d26ba1ae0f7 177 pc.printf("Opened log file %s\r\n",cfgFilePath);
cmkachur 4:4d26ba1ae0f7 178
cmkachur 4:4d26ba1ae0f7 179 // write the header
cmkachur 4:4d26ba1ae0f7 180 fprintf(fp,"# FW_VER,REG0,REG1,REG2,REG3,REG4,REG5,REG6,REG7,REG8\r\n");
cmkachur 4:4d26ba1ae0f7 181
cmkachur 4:4d26ba1ae0f7 182 // write the firmware version
cmkachur 4:4d26ba1ae0f7 183 fprintf(fp,"%d,", fwVer);
cmkachur 4:4d26ba1ae0f7 184
cmkachur 4:4d26ba1ae0f7 185 // write all the configuration registers
cmkachur 4:4d26ba1ae0f7 186 for (cnt = 0; cnt < buffLen && cnt < MAX_CONFIG_REGS; ++cnt)
cmkachur 4:4d26ba1ae0f7 187 fprintf(fp,"0x%x,", pBuff[cnt]);
cmkachur 4:4d26ba1ae0f7 188
cmkachur 4:4d26ba1ae0f7 189 fflush(fp);
cmkachur 4:4d26ba1ae0f7 190 f_sync((FIL*)fp);
cmkachur 4:4d26ba1ae0f7 191 fclose(fp);
cmkachur 4:4d26ba1ae0f7 192 sd.unmount();
cmkachur 4:4d26ba1ae0f7 193
cmkachur 4:4d26ba1ae0f7 194 if (debug)
cmkachur 4:4d26ba1ae0f7 195 pc.printf("Closed cfg file %s\r\n",cfgFilePath);
cmkachur 4:4d26ba1ae0f7 196 }
cmkachur 4:4d26ba1ae0f7 197
cmkachur 4:4d26ba1ae0f7 198
cmkachur 6:96b0dbe76357 199 bool readCfgFile(char *paDirectory, sys_cfg_t *paSysCfg)
cmkachur 6:96b0dbe76357 200 {
cmkachur 6:96b0dbe76357 201 bool bRetVal = false;
ftagius 8:f8830b6c6d9b 202 FILE *fp;
cmkachur 6:96b0dbe76357 203 sys_cfg_t lSysCfg;
cmkachur 6:96b0dbe76357 204 typedef struct
cmkachur 6:96b0dbe76357 205 {
cmkachur 6:96b0dbe76357 206 const char *token;
cmkachur 6:96b0dbe76357 207 unsigned int *value;
cmkachur 6:96b0dbe76357 208 }token_map_t;
cmkachur 6:96b0dbe76357 209
cmkachur 6:96b0dbe76357 210 token_map_t tokenMap[] = { {"outdoor_mode", &lSysCfg.bOutdoorMode},
cmkachur 6:96b0dbe76357 211 {"noise_floor", &lSysCfg.noiseFloor},
cmkachur 6:96b0dbe76357 212 {"watchdog_threshold", &lSysCfg.wdogThresh},
cmkachur 6:96b0dbe76357 213 {"clear_stat", &lSysCfg.bClrStat},
cmkachur 6:96b0dbe76357 214 {"minimum_num_light", &lSysCfg.minNumLight},
cmkachur 6:96b0dbe76357 215 {"spike_reject", &lSysCfg.spikeRej},
cmkachur 6:96b0dbe76357 216 {"mask_disturber", &lSysCfg.maskDisturber},
cmkachur 6:96b0dbe76357 217 };
cmkachur 6:96b0dbe76357 218 ConfigFile *plCfgFile;
cmkachur 6:96b0dbe76357 219 string fileName;
cmkachur 6:96b0dbe76357 220 int count = sizeof(tokenMap) / sizeof(token_map_t);
cmkachur 6:96b0dbe76357 221 char szValue[8];
cmkachur 6:96b0dbe76357 222
cmkachur 6:96b0dbe76357 223 if ((NULL == paDirectory) || (NULL == paSysCfg))
cmkachur 6:96b0dbe76357 224 return false;
cmkachur 6:96b0dbe76357 225
cmkachur 6:96b0dbe76357 226 // start with whatever configuration params are passed in, in case some params are not found in the file
cmkachur 6:96b0dbe76357 227 lSysCfg = *paSysCfg;
cmkachur 6:96b0dbe76357 228
cmkachur 6:96b0dbe76357 229 plCfgFile = new ConfigFile();
cmkachur 6:96b0dbe76357 230 fileName = paDirectory;
cmkachur 6:96b0dbe76357 231 fileName += "/";
cmkachur 6:96b0dbe76357 232 fileName += "zeus.cfg";
ftagius 8:f8830b6c6d9b 233
cmkachur 6:96b0dbe76357 234 sd.mount();
ftagius 8:f8830b6c6d9b 235 fp = fopen(fileName.c_str(), "r");
cmkachur 6:96b0dbe76357 236 printf ("\n\rReading configuration file[%s]\n\r", fileName.c_str());
cmkachur 6:96b0dbe76357 237
cmkachur 6:96b0dbe76357 238 // try to read values from the configuration file
cmkachur 6:96b0dbe76357 239 if (plCfgFile->read((char *)fileName.c_str()))
cmkachur 6:96b0dbe76357 240 {
cmkachur 6:96b0dbe76357 241 for (int i = 0; i < count; ++i)
cmkachur 6:96b0dbe76357 242 {
cmkachur 6:96b0dbe76357 243 if (plCfgFile->getValue((char *)tokenMap[i].token, szValue, sizeof(szValue)))
cmkachur 6:96b0dbe76357 244 {
cmkachur 6:96b0dbe76357 245 if (1 == sscanf(szValue, "%d", tokenMap[i].value))
cmkachur 6:96b0dbe76357 246 {
cmkachur 6:96b0dbe76357 247 printf ("Convert success %s[%d]\n\r", tokenMap[i].token, *(tokenMap[i].value));
cmkachur 6:96b0dbe76357 248 }
cmkachur 6:96b0dbe76357 249 }
cmkachur 6:96b0dbe76357 250 }
cmkachur 6:96b0dbe76357 251
cmkachur 6:96b0dbe76357 252 // copy out the new found values
cmkachur 6:96b0dbe76357 253 *paSysCfg = lSysCfg;
cmkachur 6:96b0dbe76357 254 bRetVal = true;
cmkachur 6:96b0dbe76357 255 }
cmkachur 6:96b0dbe76357 256 else
cmkachur 6:96b0dbe76357 257 {
cmkachur 6:96b0dbe76357 258 printf ("Failed to read configuration file[%s]\n\r", fileName.c_str());
cmkachur 6:96b0dbe76357 259
cmkachur 6:96b0dbe76357 260 // try to create a default configuration file
cmkachur 6:96b0dbe76357 261 for (int i = 0; i < count; ++i)
cmkachur 6:96b0dbe76357 262 {
cmkachur 6:96b0dbe76357 263 if (snprintf(szValue, sizeof(szValue), "%d", *(tokenMap[i].value)))
cmkachur 6:96b0dbe76357 264 {
cmkachur 6:96b0dbe76357 265 if (plCfgFile->setValue((char *)tokenMap[i].token, szValue))
cmkachur 6:96b0dbe76357 266 {
cmkachur 6:96b0dbe76357 267 printf ("Token creation success %s[%s]\n\r", tokenMap[i].token, szValue);
cmkachur 6:96b0dbe76357 268 }
cmkachur 6:96b0dbe76357 269 }
cmkachur 6:96b0dbe76357 270 }
cmkachur 6:96b0dbe76357 271 if (plCfgFile->write((char *)fileName.c_str(), NULL, DOS))
cmkachur 6:96b0dbe76357 272 printf ("Success: Created default configuration file [%s]\n\r", fileName.c_str());
cmkachur 6:96b0dbe76357 273 else
cmkachur 6:96b0dbe76357 274 printf ("Failed to create default configuration file [%s]\n\r", fileName.c_str());
cmkachur 6:96b0dbe76357 275 }
cmkachur 6:96b0dbe76357 276
cmkachur 6:96b0dbe76357 277 if (plCfgFile)
cmkachur 6:96b0dbe76357 278 delete plCfgFile;
cmkachur 6:96b0dbe76357 279
ftagius 8:f8830b6c6d9b 280 fclose(fp);
cmkachur 6:96b0dbe76357 281 sd.unmount();
cmkachur 6:96b0dbe76357 282 return bRetVal;
cmkachur 6:96b0dbe76357 283 }
cmkachur 6:96b0dbe76357 284
cmkachur 4:4d26ba1ae0f7 285
ftagius 0:3328df4c3116 286 int main()
ftagius 0:3328df4c3116 287 {
cmkachur 6:96b0dbe76357 288
cmkachur 4:4d26ba1ae0f7 289 unsigned char regBuff[MAX_CONFIG_REGS];
ftagius 0:3328df4c3116 290 char c;
ftagius 0:3328df4c3116 291 Timer refresh_Timer; //sets up a timer for use in loop; how often do we print GPS info?
ftagius 0:3328df4c3116 292 const int refresh_Time = 1000; //refresh time in ms
ftagius 0:3328df4c3116 293 TSISensor tsi; // touch slider
ftagius 0:3328df4c3116 294 unsigned long measFreq;
ftagius 1:10d2a051285e 295 rdistance=-1;
ftagius 1:10d2a051285e 296 rinterrupt=-1;
ftagius 0:3328df4c3116 297 pc.baud(9600);
ftagius 0:3328df4c3116 298 // initializations for gps
ftagius 0:3328df4c3116 299 green = 1;
ftagius 0:3328df4c3116 300 gpsd.setBaud(9600);
ftagius 0:3328df4c3116 301 gpsd.sendCommand(PMTK_SET_NMEA_OUTPUT_RMCGGA);
ftagius 0:3328df4c3116 302 gpsd.sendCommand(PMTK_SET_NMEA_UPDATE_1HZ);
ftagius 0:3328df4c3116 303 gpsd.sendCommand(PGCMD_ANTENNA);
ftagius 0:3328df4c3116 304 gpsd.day=01;
ftagius 0:3328df4c3116 305 gpsd.month=01;
ftagius 0:3328df4c3116 306 gpsd.year=15;
ftagius 0:3328df4c3116 307 gpsd.hour=1;
ftagius 0:3328df4c3116 308 gpsd.minute=1;
ftagius 0:3328df4c3116 309 gpsd.seconds=1;
ftagius 0:3328df4c3116 310 red = 1;
ftagius 0:3328df4c3116 311 green = 1;
ftagius 3:e3974328d808 312 pc.printf("Touch slider to start lightning detector application\r\n");
ftagius 0:3328df4c3116 313 while(1) {
ftagius 0:3328df4c3116 314 green = 1; // turn led off
ftagius 0:3328df4c3116 315 wait_ms(200);
ftagius 0:3328df4c3116 316 if (tsi.readPercentage())
ftagius 0:3328df4c3116 317 break;
ftagius 0:3328df4c3116 318 green = 0; // turn led on
ftagius 0:3328df4c3116 319 wait_ms(200);
ftagius 0:3328df4c3116 320 if (tsi.readPercentage())
ftagius 0:3328df4c3116 321 break;
ftagius 0:3328df4c3116 322 }
cmkachur 6:96b0dbe76357 323 //Mount the filesystem
cmkachur 6:96b0dbe76357 324 sd.mount();
cmkachur 6:96b0dbe76357 325 mkdir(directory, 0777);
cmkachur 6:96b0dbe76357 326 sd.unmount();
cmkachur 6:96b0dbe76357 327
cmkachur 6:96b0dbe76357 328 // read configuration values fro SD file system to allow override of defaults in sysCfg
cmkachur 6:96b0dbe76357 329 readCfgFile(directory, &sysCfg);
cmkachur 6:96b0dbe76357 330
ftagius 3:e3974328d808 331 pc.printf("\r\nInitialize lightning detector\r\n");
ftagius 0:3328df4c3116 332 //initializations for lightning detector
ftagius 0:3328df4c3116 333 ld.init();
ftagius 0:3328df4c3116 334 ld.clearStats();
ftagius 1:10d2a051285e 335
cmkachur 5:1d4fd419cfb7 336 /* The precision of the calibration will depend on the
cmkachur 5:1d4fd419cfb7 337 accuracy of the resonance frequency of the antenna. It is
cmkachur 5:1d4fd419cfb7 338 recommended to first trim the receiver antenna before the
cmkachur 5:1d4fd419cfb7 339 calibration of both oscillators is done.
cmkachur 5:1d4fd419cfb7 340 */
cmkachur 5:1d4fd419cfb7 341 measFreq = ld.tuneAntenna(IntLightning);
cmkachur 2:3edb129c60b2 342 ld.calibrateRCOs(IntLightning);
ftagius 1:10d2a051285e 343
cmkachur 6:96b0dbe76357 344 if (sysCfg.bOutdoorMode)
cmkachur 6:96b0dbe76357 345 ld.setOutdoors();
cmkachur 6:96b0dbe76357 346 else
cmkachur 6:96b0dbe76357 347 ld.setIndoors();
cmkachur 6:96b0dbe76357 348
cmkachur 6:96b0dbe76357 349 ld.setMinimumLightnings(sysCfg.minNumLight);
cmkachur 6:96b0dbe76357 350 ld.setSpikeRejection(sysCfg.spikeRej);
cmkachur 6:96b0dbe76357 351 ld.setNoiseFloor(sysCfg.noiseFloor);
cmkachur 4:4d26ba1ae0f7 352
cmkachur 6:96b0dbe76357 353 if (sysCfg.maskDisturber)
cmkachur 6:96b0dbe76357 354 ld.disableDisturbers();
cmkachur 6:96b0dbe76357 355 else
cmkachur 6:96b0dbe76357 356 ld.enableDisturbers();
cmkachur 6:96b0dbe76357 357
cmkachur 6:96b0dbe76357 358 ld.setWatchdogThreshold(sysCfg.wdogThresh);
ftagius 0:3328df4c3116 359 IntLightning.rise(&DetectLightning);
cmkachur 6:96b0dbe76357 360
cmkachur 6:96b0dbe76357 361 int MinLight = ld.getMinimumLightnings();
cmkachur 6:96b0dbe76357 362 int Noise = ld.getNoiseFloor();
cmkachur 6:96b0dbe76357 363 int TuneCap = ld.getTuneCap();
cmkachur 6:96b0dbe76357 364 int SpikeRej = ld.getSpikeRejection();
cmkachur 6:96b0dbe76357 365 int WatchDog = ld.getWatchdogThreshold();
ftagius 0:3328df4c3116 366
cmkachur 6:96b0dbe76357 367 pc.printf("\r\n Min lightning: %i", MinLight);
ftagius 0:3328df4c3116 368 pc.printf("\r\n");
ftagius 0:3328df4c3116 369 pc.printf(" Gain: 0x%02x\r\n",ld.getGain());
ftagius 0:3328df4c3116 370 pc.printf(" Noise: %i", Noise);
ftagius 0:3328df4c3116 371 pc.printf("\r\n");
ftagius 0:3328df4c3116 372 pc.printf(" Tune CAP: %i", TuneCap);
ftagius 0:3328df4c3116 373 pc.printf("\r\n");
ftagius 0:3328df4c3116 374 pc.printf(" Spike rej: %i", SpikeRej);
ftagius 0:3328df4c3116 375 pc.printf("\r\n");
ftagius 0:3328df4c3116 376 pc.printf(" Watchdog: %i", WatchDog);
ftagius 0:3328df4c3116 377 pc.printf("\r\n");
ftagius 0:3328df4c3116 378 pc.printf(" LCO calibration: %ld Hz\n\r", measFreq);
ftagius 0:3328df4c3116 379
ftagius 0:3328df4c3116 380 refresh_Timer.start(); //starts the clock on the timer
cmkachur 4:4d26ba1ae0f7 381
cmkachur 4:4d26ba1ae0f7 382 // get a copy of all config registers
cmkachur 4:4d26ba1ae0f7 383 ld.getConfigRegisters(regBuff, sizeof(regBuff));
cmkachur 4:4d26ba1ae0f7 384
cmkachur 6:96b0dbe76357 385 pc.printf("\n\rSystem Registers:\n\r");
cmkachur 6:96b0dbe76357 386 for (int i = 0; i < sizeof(regBuff); ++i)
cmkachur 6:96b0dbe76357 387 pc.printf("REG%d [0x%02x]:\n\r", i, regBuff[i]);
cmkachur 6:96b0dbe76357 388 pc.printf("\n\r");
cmkachur 6:96b0dbe76357 389
cmkachur 4:4d26ba1ae0f7 390 // write to the config file
cmkachur 4:4d26ba1ae0f7 391 writeCfgFile(regBuff, sizeof(regBuff), FW_VER);
ftagius 1:10d2a051285e 392
ftagius 0:3328df4c3116 393 bool gpsFix=false;
ftagius 8:f8830b6c6d9b 394 bool rtcRunning=false;
ftagius 0:3328df4c3116 395 while (1)
ftagius 0:3328df4c3116 396 {
ftagius 3:e3974328d808 397 if (OriginInt != -1)
ftagius 3:e3974328d808 398 {
ftagius 3:e3974328d808 399 // the ld detector generated an interrupt, log the event
ftagius 3:e3974328d808 400 IntLightning.disable_irq();
cmkachur 6:96b0dbe76357 401 writeLogFile(OriginInt,gDistance, energy);
cmkachur 6:96b0dbe76357 402 //ld.clearStats();
ftagius 3:e3974328d808 403 OriginInt = -1;
cmkachur 6:96b0dbe76357 404 gDistance = -1;
ftagius 3:e3974328d808 405 energy = -1;
ftagius 3:e3974328d808 406 IntLightning.enable_irq();
ftagius 3:e3974328d808 407 }
ftagius 3:e3974328d808 408
ftagius 0:3328df4c3116 409 c = gpsd.read(); //queries the GPS
ftagius 0:3328df4c3116 410 if (debug)
ftagius 0:3328df4c3116 411 {
ftagius 0:3328df4c3116 412 if (c) {
ftagius 0:3328df4c3116 413 printf("%c", c); //this line will echo the GPS data if not paused
ftagius 0:3328df4c3116 414 continue;
ftagius 0:3328df4c3116 415 }
ftagius 0:3328df4c3116 416 }
ftagius 0:3328df4c3116 417
ftagius 0:3328df4c3116 418 //check if we recieved a new message from GPS, if so, attempt to parse it,
ftagius 0:3328df4c3116 419 if ( gpsd.newNMEAreceived() ) {
ftagius 0:3328df4c3116 420 if ( !gpsd.parse(gpsd.lastNMEA()) ) {
ftagius 0:3328df4c3116 421 continue;
ftagius 0:3328df4c3116 422 }
ftagius 0:3328df4c3116 423 }
ftagius 0:3328df4c3116 424
ftagius 8:f8830b6c6d9b 425 // if the rtc is not running, update the rtc clock with the latest gps time stamp
ftagius 8:f8830b6c6d9b 426 if ( rtcRunning == false )
ftagius 8:f8830b6c6d9b 427 {
ftagius 8:f8830b6c6d9b 428 // update rtc with the lastest gps time stamp
ftagius 8:f8830b6c6d9b 429 SetDateTime(gpsd.year+2000,
ftagius 8:f8830b6c6d9b 430 gpsd.month-1,
ftagius 8:f8830b6c6d9b 431 gpsd.day,
ftagius 8:f8830b6c6d9b 432 gpsd.hour,
ftagius 8:f8830b6c6d9b 433 gpsd.minute,
ftagius 8:f8830b6c6d9b 434 gpsd.seconds);
ftagius 8:f8830b6c6d9b 435 }
ftagius 8:f8830b6c6d9b 436
ftagius 0:3328df4c3116 437 //check if enough time has passed to warrant printing GPS info to screen
ftagius 0:3328df4c3116 438 //note if refresh_Time is too low or pc.baud is too low, GPS data may be lost during printing
ftagius 0:3328df4c3116 439 if (refresh_Timer.read_ms() >= refresh_Time)
ftagius 0:3328df4c3116 440 {
ftagius 0:3328df4c3116 441 if (gpsd.fix) {
ftagius 0:3328df4c3116 442 // got a gps fix
ftagius 0:3328df4c3116 443 if (gpsFix == false)
ftagius 0:3328df4c3116 444 {
ftagius 0:3328df4c3116 445 // first time fix obtained
ftagius 0:3328df4c3116 446 gpsFix = true;
ftagius 8:f8830b6c6d9b 447 // bug check - rtc may not be running. check if it is incrementing
ftagius 8:f8830b6c6d9b 448 time_t seconds_a = time(NULL); // get the current rtc second count
ftagius 8:f8830b6c6d9b 449 wait(2); // wait two seconds
ftagius 8:f8830b6c6d9b 450 time_t seconds_b = time(NULL); // get the current rtc second count
ftagius 8:f8830b6c6d9b 451 if (seconds_a != seconds_b)
ftagius 8:f8830b6c6d9b 452 {
ftagius 8:f8830b6c6d9b 453 // rtc must be running
ftagius 8:f8830b6c6d9b 454 rtcRunning = true;
ftagius 8:f8830b6c6d9b 455 pc.printf("RTC is running\r\n");
ftagius 8:f8830b6c6d9b 456 }
ftagius 8:f8830b6c6d9b 457 else
ftagius 8:f8830b6c6d9b 458 {
ftagius 8:f8830b6c6d9b 459 // rtc is not running, we need to update the rtc every pass through the while loop
ftagius 8:f8830b6c6d9b 460 rtcRunning = false; // the gps time will update the rtc
ftagius 8:f8830b6c6d9b 461 pc.printf("RTC is not running\r\n");
ftagius 8:f8830b6c6d9b 462 }
ftagius 8:f8830b6c6d9b 463
ftagius 8:f8830b6c6d9b 464 // set the rtc with the latest gps time
ftagius 8:f8830b6c6d9b 465 SetDateTime(gpsd.year+2000,
ftagius 8:f8830b6c6d9b 466 gpsd.month-1,
ftagius 8:f8830b6c6d9b 467 gpsd.day,
ftagius 8:f8830b6c6d9b 468 gpsd.hour,
ftagius 8:f8830b6c6d9b 469 gpsd.minute,
ftagius 8:f8830b6c6d9b 470 gpsd.seconds);
ftagius 0:3328df4c3116 471 pc.printf("GPS fix obtained on %02d/%02d/20%02d_%02d:%02d:%02d (UTC)\r\n",gpsd.month,gpsd.day,gpsd.year,gpsd.hour,gpsd.minute,gpsd.seconds);
ftagius 1:10d2a051285e 472 //pc.printf("Touch slider to suspend application\r\n");
ftagius 0:3328df4c3116 473 pc.printf("Waiting for lighting detection...\r\n");
ftagius 0:3328df4c3116 474 }
ftagius 0:3328df4c3116 475
ftagius 0:3328df4c3116 476 //red = 1; // turn led off
ftagius 0:3328df4c3116 477 //pc.printf("turn green on\r\n");
ftagius 0:3328df4c3116 478 green = 0; // turn led on
ftagius 0:3328df4c3116 479 wait_ms(50);
ftagius 0:3328df4c3116 480 }
ftagius 0:3328df4c3116 481 else
ftagius 0:3328df4c3116 482 {
ftagius 3:e3974328d808 483 gpsFix = false;
ftagius 0:3328df4c3116 484 pc.printf("Waiting for GPS FIX\r\n");
ftagius 0:3328df4c3116 485 red = 0; // turn led on
ftagius 0:3328df4c3116 486 }
ftagius 0:3328df4c3116 487
ftagius 0:3328df4c3116 488 // restart the timer for the gps print loop
ftagius 0:3328df4c3116 489 // writeLogFile(-2);
ftagius 0:3328df4c3116 490 refresh_Timer.reset();
ftagius 0:3328df4c3116 491 }
ftagius 0:3328df4c3116 492 else
ftagius 0:3328df4c3116 493 {
ftagius 0:3328df4c3116 494 //red = 0; // turn led on
ftagius 0:3328df4c3116 495 //pc.printf("turn green off\r\n");
ftagius 0:3328df4c3116 496 green = 1; // turn green led off
ftagius 0:3328df4c3116 497 } // end else refresh timer
ftagius 0:3328df4c3116 498 }
ftagius 0:3328df4c3116 499
ftagius 0:3328df4c3116 500 }