Justin Jordan / Mbed 2 deprecated MAX32630FTHR_DS18B20_uSD_Logger

DS18B20 uSD data logger with MAX32630FTHR

Dependencies:   OneWire SDFileSystem max32630fthr mbed

Fork of MAX32630FTHR_iButton_uSD_Logger by Justin Jordan

main.cpp@2:9e45f00fd2de, 2017-02-17 (annotated)

Committer:
j3
Date:
Fri Feb 17 22:23:17 2017 +0000
Revision:
2:9e45f00fd2de
Parent:
0:0cdbc206e85f 
init commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
j3 0:0cdbc206e85f 1 /******************************************************************************
j3 0:0cdbc206e85f 2 * MIT License
j3 0:0cdbc206e85f 3 *
j3 0:0cdbc206e85f 4 * Copyright (c) 2017 Justin J. Jordan
j3 0:0cdbc206e85f 5 *
j3 0:0cdbc206e85f 6 * Permission is hereby granted, free of charge, to any person obtaining a copy
j3 0:0cdbc206e85f 7 * of this software and associated documentation files (the "Software"), to deal
j3 0:0cdbc206e85f 8 * in the Software without restriction, including without limitation the rights
j3 0:0cdbc206e85f 9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
j3 0:0cdbc206e85f 10 * copies of the Software, and to permit persons to whom the Software is
j3 0:0cdbc206e85f 11 * furnished to do so, subject to the following conditions:
j3 0:0cdbc206e85f 12
j3 0:0cdbc206e85f 13 * The above copyright notice and this permission notice shall be included in all
j3 0:0cdbc206e85f 14 * copies or substantial portions of the Software.
j3 0:0cdbc206e85f 15
j3 0:0cdbc206e85f 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
j3 0:0cdbc206e85f 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
j3 0:0cdbc206e85f 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
j3 0:0cdbc206e85f 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
j3 0:0cdbc206e85f 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
j3 0:0cdbc206e85f 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
j3 0:0cdbc206e85f 22 * SOFTWARE.
j3 0:0cdbc206e85f 23 ******************************************************************************/
j3 0:0cdbc206e85f 24
j3 0:0cdbc206e85f 25
j3 0:0cdbc206e85f 26 #include "mbed.h"
j3 0:0cdbc206e85f 27 #include "OneWire.h"
j3 0:0cdbc206e85f 28 #include "max32630fthr.h"
j3 0:0cdbc206e85f 29 #include "SDFileSystem.h"
j3 2:9e45f00fd2de 30
j3 2:9e45f00fd2de 31 #define TERM_HOME "\033[H"
j3 2:9e45f00fd2de 32 #define TERM_CLEAR_FROM_CURSOR "\033[0J"
j3 2:9e45f00fd2de 33 #define TERM_CLEAR_EOL "\033[K"
j3 0:0cdbc206e85f 34
j3 0:0cdbc206e85f 35 using namespace OneWire;
j3 0:0cdbc206e85f 36 using namespace RomCommands;
j3 0:0cdbc206e85f 37
j3 0:0cdbc206e85f 38
j3 0:0cdbc206e85f 39 Ticker oneSecondTicker;
j3 0:0cdbc206e85f 40 volatile uint32_t secondCounter = 0;
j3 0:0cdbc206e85f 41 void oneSecond()
j3 0:0cdbc206e85f 42 {
j3 0:0cdbc206e85f 43 secondCounter++;
j3 0:0cdbc206e85f 44 }
j3 0:0cdbc206e85f 45
j3 0:0cdbc206e85f 46 //Setup start/stop button
j3 0:0cdbc206e85f 47 DigitalIn sw2(P2_3, PullUp);
j3 0:0cdbc206e85f 48 InterruptIn startStopLog(P2_3);
j3 0:0cdbc206e85f 49 volatile bool startLog = false;
j3 0:0cdbc206e85f 50 void startStopLogISR()
j3 0:0cdbc206e85f 51 {
j3 0:0cdbc206e85f 52 startLog = !startLog;
j3 0:0cdbc206e85f 53 }
j3 0:0cdbc206e85f 54
j3 0:0cdbc206e85f 55
j3 0:0cdbc206e85f 56 int main ()
j3 0:0cdbc206e85f 57 {
j3 0:0cdbc206e85f 58 //Init board and set GPIO to 3.3V logic
j3 0:0cdbc206e85f 59 MAX32630FTHR pegasus;
j3 0:0cdbc206e85f 60 pegasus.init(MAX32630FTHR::VIO_3V3);
j3 0:0cdbc206e85f 61
j3 0:0cdbc206e85f 62 //Turn RGB LED off
j3 0:0cdbc206e85f 63 DigitalOut rLED(LED1, LED_ON);
j3 0:0cdbc206e85f 64 DigitalOut gLED(LED2, LED_OFF);
j3 0:0cdbc206e85f 65 DigitalOut bLED(LED3, LED_OFF);
j3 0:0cdbc206e85f 66
j3 2:9e45f00fd2de 67 //Clear terminal screen
j3 2:9e45f00fd2de 68 printf(TERM_HOME);
j3 2:9e45f00fd2de 69 printf(TERM_CLEAR_FROM_CURSOR);
j3 0:0cdbc206e85f 70
j3 0:0cdbc206e85f 71 //Get 1-Wire Master (owm) instance
j3 2:9e45f00fd2de 72 // (extWeakPup, extStrongPup)
j3 2:9e45f00fd2de 73 MCU_OWM owm(false, true);
j3 0:0cdbc206e85f 74
j3 0:0cdbc206e85f 75 //Make sure owm is initialized
j3 0:0cdbc206e85f 76 OneWireMaster::CmdResult result = owm.OWInitMaster();
j3 0:0cdbc206e85f 77 while(result != OneWireMaster::Success)
j3 0:0cdbc206e85f 78 {
j3 2:9e45f00fd2de 79 printf("Failed to init OWM...\r\n\r\n");
j3 0:0cdbc206e85f 80 result = owm.OWInitMaster();
j3 0:0cdbc206e85f 81 wait(0.5);
j3 0:0cdbc206e85f 82 }
j3 2:9e45f00fd2de 83 printf("OWM Initialized...\r\n");
j3 0:0cdbc206e85f 84 wait(2.0);
j3 2:9e45f00fd2de 85 printf(TERM_HOME);
j3 2:9e45f00fd2de 86 printf(TERM_CLEAR_FROM_CURSOR);
j3 0:0cdbc206e85f 87
j3 0:0cdbc206e85f 88
j3 2:9e45f00fd2de 89 //Check for DS18B20
j3 0:0cdbc206e85f 90 SearchState search_state;
j3 2:9e45f00fd2de 91 search_state.findFamily(0x28);
j3 0:0cdbc206e85f 92 do
j3 0:0cdbc206e85f 93 {
j3 0:0cdbc206e85f 94 result = OWNext(owm, search_state);
j3 2:9e45f00fd2de 95 if(search_state.romId.familyCode() != 0x28)
j3 0:0cdbc206e85f 96 {
j3 2:9e45f00fd2de 97 printf("Failed to find DS18B20...\r\n");
j3 2:9e45f00fd2de 98 printf("Please connect DS18B20...\r\n\r\n");
j3 0:0cdbc206e85f 99 wait(0.5);
j3 0:0cdbc206e85f 100 }
j3 0:0cdbc206e85f 101 else
j3 0:0cdbc206e85f 102 {
j3 2:9e45f00fd2de 103 printf("Found DS18B20...\r\n");
j3 0:0cdbc206e85f 104 }
j3 0:0cdbc206e85f 105 }
j3 2:9e45f00fd2de 106 while(search_state.romId.familyCode() != 0x28);
j3 2:9e45f00fd2de 107 wait(2.0);
j3 2:9e45f00fd2de 108 printf(TERM_HOME);
j3 2:9e45f00fd2de 109 printf(TERM_CLEAR_FROM_CURSOR);
j3 0:0cdbc206e85f 110
j3 2:9e45f00fd2de 111 //Get instance of DS18B20 object
j3 0:0cdbc206e85f 112 MultidropRomIterator selector(owm);
j3 2:9e45f00fd2de 113 DS18B20 tempSensor(selector);
j3 0:0cdbc206e85f 114 tempSensor.setRomId(search_state.romId);
j3 0:0cdbc206e85f 115
j3 0:0cdbc206e85f 116
j3 0:0cdbc206e85f 117 //Get instance of sd card file system
j3 0:0cdbc206e85f 118 SDFileSystem sd(P0_5, P0_6, P0_4, P0_7, "sd"); // mosi, miso, sclk, cs
j3 0:0cdbc206e85f 119
j3 0:0cdbc206e85f 120 //Configure pin for sd card detect
j3 0:0cdbc206e85f 121 DigitalIn uSDdetect(P2_2, PullUp);
j3 0:0cdbc206e85f 122
j3 0:0cdbc206e85f 123 static const char FILE_NAME[] = "/sd/log.txt";
j3 0:0cdbc206e85f 124 FILE *fp;
j3 0:0cdbc206e85f 125
j3 0:0cdbc206e85f 126 //Check for card
j3 0:0cdbc206e85f 127 if(uSDdetect)
j3 0:0cdbc206e85f 128 {
j3 2:9e45f00fd2de 129 printf("Please insert uSD card\r\n");
j3 0:0cdbc206e85f 130 while(uSDdetect);
j3 0:0cdbc206e85f 131 }
j3 0:0cdbc206e85f 132
j3 0:0cdbc206e85f 133 rLED = LED_ON;
j3 0:0cdbc206e85f 134 gLED = LED_ON;
j3 0:0cdbc206e85f 135 do
j3 0:0cdbc206e85f 136 {
j3 0:0cdbc206e85f 137 fp = fopen(FILE_NAME, "w");
j3 0:0cdbc206e85f 138 if(fp != NULL)
j3 0:0cdbc206e85f 139 {
j3 2:9e45f00fd2de 140 printf("Card detected...\r\n");
j3 2:9e45f00fd2de 141 printf("Preparing log file...\r\n");
j3 0:0cdbc206e85f 142 fprintf(fp, "Time-Stamp, Battery Voltage, Temperature\n");
j3 0:0cdbc206e85f 143 fclose(fp);
j3 0:0cdbc206e85f 144 }
j3 0:0cdbc206e85f 145 else
j3 0:0cdbc206e85f 146 {
j3 2:9e45f00fd2de 147 printf("Failed to open file...\r\n");
j3 2:9e45f00fd2de 148 printf("Press Reset Button...\r\n\r\n");
j3 2:9e45f00fd2de 149 wait(0.5);
j3 0:0cdbc206e85f 150 }
j3 0:0cdbc206e85f 151 }
j3 0:0cdbc206e85f 152 while(fp == NULL);
j3 0:0cdbc206e85f 153 rLED = LED_OFF;
j3 0:0cdbc206e85f 154 gLED = LED_ON;
j3 2:9e45f00fd2de 155
j3 0:0cdbc206e85f 156 wait(2.0);
j3 2:9e45f00fd2de 157 printf(TERM_HOME);
j3 2:9e45f00fd2de 158 printf(TERM_CLEAR_FROM_CURSOR);
j3 0:0cdbc206e85f 159
j3 0:0cdbc206e85f 160 enum UiStates
j3 0:0cdbc206e85f 161 {
j3 0:0cdbc206e85f 162 Reset,
j3 0:0cdbc206e85f 163 NoLog_NoCardDetected,
j3 0:0cdbc206e85f 164 NoLog_CardDetected,
j3 0:0cdbc206e85f 165 Log_NoCardDetected,
j3 0:0cdbc206e85f 166 Log_CardDetected
j3 0:0cdbc206e85f 167 };
j3 0:0cdbc206e85f 168
j3 0:0cdbc206e85f 169 UiStates currentState = Reset, oldState = Reset;
j3 0:0cdbc206e85f 170
j3 0:0cdbc206e85f 171 static const uint32_t SAMPLE_INTERVAL = 5; // In seconds
j3 0:0cdbc206e85f 172 bool firstSampleTaken = false;
j3 0:0cdbc206e85f 173 uint32_t sampleTime = 0;
j3 0:0cdbc206e85f 174 float batteryVoltage, temperature;
j3 0:0cdbc206e85f 175
j3 0:0cdbc206e85f 176 //attach timer to callback for 1 second tick
j3 0:0cdbc206e85f 177 oneSecondTicker.attach(&oneSecond, 1);
j3 0:0cdbc206e85f 178
j3 0:0cdbc206e85f 179 //Tie SW2 to callback fx
j3 0:0cdbc206e85f 180 startStopLog.fall(&startStopLogISR);
j3 0:0cdbc206e85f 181
j3 0:0cdbc206e85f 182
j3 0:0cdbc206e85f 183 while(1)
j3 0:0cdbc206e85f 184 {
j3 0:0cdbc206e85f 185 //card detect is active low
j3 0:0cdbc206e85f 186 //Determine state, house keeping
j3 0:0cdbc206e85f 187 if(!startLog && uSDdetect) //False, False
j3 0:0cdbc206e85f 188 {
j3 0:0cdbc206e85f 189 currentState = NoLog_NoCardDetected;
j3 0:0cdbc206e85f 190 secondCounter = 0;
j3 0:0cdbc206e85f 191 sampleTime = 0;
j3 0:0cdbc206e85f 192 firstSampleTaken = false;
j3 0:0cdbc206e85f 193 }
j3 0:0cdbc206e85f 194 else if(!startLog && !uSDdetect) //False, True
j3 0:0cdbc206e85f 195 {
j3 0:0cdbc206e85f 196 currentState = NoLog_CardDetected;
j3 0:0cdbc206e85f 197 secondCounter = 0;
j3 0:0cdbc206e85f 198 sampleTime = 0;
j3 0:0cdbc206e85f 199 firstSampleTaken = false;
j3 0:0cdbc206e85f 200 }
j3 0:0cdbc206e85f 201 else if(startLog && uSDdetect) //True, False
j3 0:0cdbc206e85f 202 {
j3 0:0cdbc206e85f 203 currentState = Log_NoCardDetected;
j3 0:0cdbc206e85f 204 secondCounter = 0;
j3 0:0cdbc206e85f 205 sampleTime = 0;
j3 0:0cdbc206e85f 206 firstSampleTaken = false;
j3 0:0cdbc206e85f 207 }
j3 0:0cdbc206e85f 208 else //True, True
j3 0:0cdbc206e85f 209 {
j3 0:0cdbc206e85f 210 currentState = Log_CardDetected;
j3 0:0cdbc206e85f 211
j3 0:0cdbc206e85f 212 //get t = 0 sample
j3 0:0cdbc206e85f 213 if(!firstSampleTaken)
j3 0:0cdbc206e85f 214 {
j3 0:0cdbc206e85f 215 firstSampleTaken = true;
j3 2:9e45f00fd2de 216 printf(TERM_HOME);
j3 2:9e45f00fd2de 217 printf(TERM_CLEAR_FROM_CURSOR);
j3 0:0cdbc206e85f 218 oldState = currentState;
j3 2:9e45f00fd2de 219
j3 0:0cdbc206e85f 220 pegasus.getBatteryVoltage(&batteryVoltage);
j3 0:0cdbc206e85f 221 tempSensor.convertTemperature(temperature);
j3 0:0cdbc206e85f 222
j3 2:9e45f00fd2de 223 printf("Logging Data...\r\n\r\n");
j3 2:9e45f00fd2de 224 printf("Timestamp: %d (seconds)\r\n\r\n", sampleTime);
j3 2:9e45f00fd2de 225 printf("Battery Voltage = %s%3.2f\r\n\r\n", TERM_CLEAR_EOL, batteryVoltage);
j3 2:9e45f00fd2de 226 printf("Temperature = %s%5.2f\r\n\r\n", TERM_CLEAR_EOL, temperature);
j3 2:9e45f00fd2de 227 printf(TERM_HOME);
j3 2:9e45f00fd2de 228
j3 0:0cdbc206e85f 229 rLED = LED_ON;
j3 0:0cdbc206e85f 230 fp = fopen(FILE_NAME, "a");
j3 0:0cdbc206e85f 231 if(fp != NULL)
j3 0:0cdbc206e85f 232 {
j3 0:0cdbc206e85f 233 fprintf(fp, "%d, %f, %f\n", sampleTime, batteryVoltage, temperature);
j3 0:0cdbc206e85f 234 fclose(fp);
j3 0:0cdbc206e85f 235 }
j3 0:0cdbc206e85f 236 else
j3 0:0cdbc206e85f 237 {
j3 2:9e45f00fd2de 238 printf(TERM_HOME);
j3 2:9e45f00fd2de 239 printf(TERM_CLEAR_FROM_CURSOR);
j3 2:9e45f00fd2de 240 printf("Failed to open file\r\n");
j3 2:9e45f00fd2de 241 printf("Press Reset Button...\r\n");
j3 2:9e45f00fd2de 242 printf("MBED DIE!!...\r\n");
j3 0:0cdbc206e85f 243 mbed_die();
j3 0:0cdbc206e85f 244 }
j3 0:0cdbc206e85f 245 rLED = LED_OFF;
j3 0:0cdbc206e85f 246 }
j3 0:0cdbc206e85f 247 }
j3 0:0cdbc206e85f 248
j3 0:0cdbc206e85f 249 //If state has changed, clear dispaly
j3 0:0cdbc206e85f 250 if(oldState != currentState)
j3 0:0cdbc206e85f 251 {
j3 2:9e45f00fd2de 252 printf(TERM_HOME);
j3 2:9e45f00fd2de 253 printf(TERM_CLEAR_FROM_CURSOR);
j3 0:0cdbc206e85f 254 oldState = currentState;
j3 0:0cdbc206e85f 255 }
j3 0:0cdbc206e85f 256
j3 0:0cdbc206e85f 257 //State based actions
j3 0:0cdbc206e85f 258 switch(currentState)
j3 0:0cdbc206e85f 259 {
j3 0:0cdbc206e85f 260 case NoLog_NoCardDetected:
j3 2:9e45f00fd2de 261 printf("Please insert uSD card...\r\n");
j3 2:9e45f00fd2de 262 printf(TERM_HOME);
j3 0:0cdbc206e85f 263 break;
j3 0:0cdbc206e85f 264
j3 0:0cdbc206e85f 265 case NoLog_CardDetected:
j3 2:9e45f00fd2de 266 printf("Press SW2 to start logging data...\r\n");
j3 2:9e45f00fd2de 267 printf(TERM_HOME);
j3 0:0cdbc206e85f 268 break;
j3 0:0cdbc206e85f 269
j3 0:0cdbc206e85f 270 case Log_NoCardDetected:
j3 0:0cdbc206e85f 271 startLog = false;
j3 2:9e45f00fd2de 272 printf("Please insert uSD card\r\n");
j3 2:9e45f00fd2de 273 printf(TERM_HOME);
j3 0:0cdbc206e85f 274 break;
j3 0:0cdbc206e85f 275
j3 0:0cdbc206e85f 276 case Log_CardDetected:
j3 0:0cdbc206e85f 277
j3 0:0cdbc206e85f 278 if(secondCounter >= SAMPLE_INTERVAL)
j3 0:0cdbc206e85f 279 {
j3 0:0cdbc206e85f 280 secondCounter = 0;
j3 0:0cdbc206e85f 281 sampleTime += SAMPLE_INTERVAL;
j3 0:0cdbc206e85f 282
j3 0:0cdbc206e85f 283 pegasus.getBatteryVoltage(&batteryVoltage);
j3 0:0cdbc206e85f 284 tempSensor.convertTemperature(temperature);
j3 0:0cdbc206e85f 285
j3 2:9e45f00fd2de 286 printf("Logging Data...\r\n\r\n");
j3 2:9e45f00fd2de 287 printf("Timestamp: %d (seconds)\r\n\r\n", sampleTime);
j3 2:9e45f00fd2de 288 printf("Battery Voltage = %s%3.2f\r\n\r\n", TERM_CLEAR_EOL, batteryVoltage);
j3 2:9e45f00fd2de 289 printf("Temperature = %s%5.2f\r\n\r\n", TERM_CLEAR_EOL, temperature);
j3 2:9e45f00fd2de 290 printf(TERM_HOME);
j3 2:9e45f00fd2de 291
j3 0:0cdbc206e85f 292 rLED = LED_ON;
j3 0:0cdbc206e85f 293 fp = fopen(FILE_NAME, "a");
j3 0:0cdbc206e85f 294 if(fp != NULL)
j3 0:0cdbc206e85f 295 {
j3 0:0cdbc206e85f 296 fprintf(fp, "%d, %f, %f\n", sampleTime, batteryVoltage, temperature);
j3 0:0cdbc206e85f 297 fclose(fp);
j3 0:0cdbc206e85f 298 }
j3 0:0cdbc206e85f 299 else
j3 0:0cdbc206e85f 300 {
j3 2:9e45f00fd2de 301 printf(TERM_HOME);
j3 2:9e45f00fd2de 302 printf(TERM_CLEAR_FROM_CURSOR);
j3 2:9e45f00fd2de 303 printf("Failed to open file\r\n");
j3 2:9e45f00fd2de 304 printf("Press Reset Button...\r\n");
j3 2:9e45f00fd2de 305 printf("MBED DIE!!...\r\n");
j3 0:0cdbc206e85f 306 mbed_die();
j3 0:0cdbc206e85f 307 }
j3 0:0cdbc206e85f 308 rLED = LED_OFF;
j3 0:0cdbc206e85f 309 }
j3 0:0cdbc206e85f 310
j3 0:0cdbc206e85f 311 break;
j3 0:0cdbc206e85f 312
j3 0:0cdbc206e85f 313 default:
j3 2:9e45f00fd2de 314 printf(TERM_HOME);
j3 2:9e45f00fd2de 315 printf(TERM_CLEAR_FROM_CURSOR);
j3 2:9e45f00fd2de 316 printf("Bad State\r\n");
j3 2:9e45f00fd2de 317 printf("Press Reset Button...\r\n");
j3 2:9e45f00fd2de 318 printf("MBED DIE!!...\r\n");
j3 0:0cdbc206e85f 319 mbed_die();
j3 0:0cdbc206e85f 320 break;
j3 0:0cdbc206e85f 321 }
j3 0:0cdbc206e85f 322 }
j3 0:0cdbc206e85f 323 }