Version 3.0: Switching to newer LDC1614 which is placed on the same PCB.
Dependencies: Bob DS1825 LDC1614 LDC1101 SDFileSystem mbed
Fork of Inductive_Sensor by
main.cpp@9:47f1b1c0ef8b, 2016-02-24 (annotated)
- Committer:
- bobgiesberts
- Date:
- Wed Feb 24 09:39:07 2016 +0000
- Revision:
- 9:47f1b1c0ef8b
- Parent:
- 8:8cc1960467ae
- Child:
- 10:3cab80866536
Final version before implementing thermometer
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
bobgiesberts | 0:e81b68888268 | 1 | #include "mbed.h" |
bobgiesberts | 0:e81b68888268 | 2 | #include "LDC1101.h" |
bobgiesberts | 1:22c272515015 | 3 | #include "SDFileSystem.h" |
bobgiesberts | 2:1a203732fc95 | 4 | #include "Bob.h" |
bobgiesberts | 0:e81b68888268 | 5 | #include <iostream> |
bobgiesberts | 5:736a81a59f3c | 6 | #include <vector> |
bobgiesberts | 4:ae441c5727b9 | 7 | #include <string> |
bobgiesberts | 0:e81b68888268 | 8 | using namespace std; |
bobgiesberts | 0:e81b68888268 | 9 | |
bobgiesberts | 2:1a203732fc95 | 10 | /** |
bobgiesberts | 2:1a203732fc95 | 11 | * @file main.cpp |
bobgiesberts | 2:1a203732fc95 | 12 | * @brief This file programs the processor for the inductive force sensor |
bobgiesberts | 2:1a203732fc95 | 13 | * using the library LDC1101.h and LDC1101.cpp. |
bobgiesberts | 2:1a203732fc95 | 14 | * - Red Led: processing communication with LDC1101 |
bobgiesberts | 2:1a203732fc95 | 15 | * - Green Led: processing SD card |
bobgiesberts | 4:ae441c5727b9 | 16 | * |
bobgiesberts | 4:ae441c5727b9 | 17 | * Log protocol: |
bobgiesberts | 4:ae441c5727b9 | 18 | * - 1 minute at 20 Hz |
bobgiesberts | 4:ae441c5727b9 | 19 | * - 29 minutes rest |
bobgiesberts | 2:1a203732fc95 | 20 | * |
bobgiesberts | 2:1a203732fc95 | 21 | * @author Bob Giesberts |
bobgiesberts | 2:1a203732fc95 | 22 | * |
bobgiesberts | 2:1a203732fc95 | 23 | * @date 2015-12-17 |
bobgiesberts | 2:1a203732fc95 | 24 | */ |
bobgiesberts | 0:e81b68888268 | 25 | |
bobgiesberts | 5:736a81a59f3c | 26 | // SETTINGS |
bobgiesberts | 6:ff39d60061ca | 27 | bool DEBUG = false; |
bobgiesberts | 6:ff39d60061ca | 28 | float C = 120E-12; // pF |
bobgiesberts | 8:8cc1960467ae | 29 | int INTERVAL_ON = 1; // 30 = 30 sec |
bobgiesberts | 8:8cc1960467ae | 30 | int INTERVAL_OFF = 60; // 1770 = 29*60+30 sec |
bobgiesberts | 0:e81b68888268 | 31 | |
bobgiesberts | 5:736a81a59f3c | 32 | // load libraries |
bobgiesberts | 5:736a81a59f3c | 33 | Bob bob(PTB0, PTB1, PTC3, PTE0, PTC2, PTE30); // red led, green led, sd_enable, sd_present, batt, 3V3_DET |
bobgiesberts | 5:736a81a59f3c | 34 | Serial pc(USBTX, USBRX); |
bobgiesberts | 4:ae441c5727b9 | 35 | |
bobgiesberts | 4:ae441c5727b9 | 36 | // timer variables |
bobgiesberts | 6:ff39d60061ca | 37 | uint32_t now = 0, next = 0, prev = 0; |
bobgiesberts | 8:8cc1960467ae | 38 | uint8_t t_high = 0; |
bobgiesberts | 6:ff39d60061ca | 39 | uint32_t lost = 0, lost_prev = 0; |
bobgiesberts | 8:8cc1960467ae | 40 | uint8_t lost_high = 0; |
bobgiesberts | 8:8cc1960467ae | 41 | uint16_t t_sleep = 0; |
bobgiesberts | 4:ae441c5727b9 | 42 | |
bobgiesberts | 4:ae441c5727b9 | 43 | // file variables |
bobgiesberts | 4:ae441c5727b9 | 44 | FILE *fp; |
bobgiesberts | 4:ae441c5727b9 | 45 | string filename = "/sd/data00.txt"; |
bobgiesberts | 4:ae441c5727b9 | 46 | const char *fn; |
bobgiesberts | 4:ae441c5727b9 | 47 | |
bobgiesberts | 5:736a81a59f3c | 48 | // temporal storage for data samples |
bobgiesberts | 7:6c4cac1ec122 | 49 | vector < uint32_t > Svector; |
bobgiesberts | 7:6c4cac1ec122 | 50 | uint32_t S; |
bobgiesberts | 5:736a81a59f3c | 51 | vector < uint32_t > Lvector; |
bobgiesberts | 6:ff39d60061ca | 52 | uint32_t L; |
bobgiesberts | 5:736a81a59f3c | 53 | float batt; |
bobgiesberts | 5:736a81a59f3c | 54 | |
bobgiesberts | 8:8cc1960467ae | 55 | float f; |
bobgiesberts | 6:ff39d60061ca | 56 | |
bobgiesberts | 0:e81b68888268 | 57 | int main(void){ |
bobgiesberts | 5:736a81a59f3c | 58 | |
bobgiesberts | 7:6c4cac1ec122 | 59 | if( DEBUG ){ |
bobgiesberts | 7:6c4cac1ec122 | 60 | LDC1101 *ldc = new LDC1101(PTC6, PTC7, PTC5, PTC4, C, 16E6); |
bobgiesberts | 7:6c4cac1ec122 | 61 | |
bobgiesberts | 8:8cc1960467ae | 62 | wait(1); |
bobgiesberts | 8:8cc1960467ae | 63 | f = ldc->get_fsensor(); |
bobgiesberts | 8:8cc1960467ae | 64 | |
bobgiesberts | 7:6c4cac1ec122 | 65 | while(1){ |
bobgiesberts | 7:6c4cac1ec122 | 66 | while( !ldc->is_New_LHR_data() ){ } // wait until data is ready |
bobgiesberts | 7:6c4cac1ec122 | 67 | |
bobgiesberts | 8:8cc1960467ae | 68 | L = ldc->get_LHR_Data(); |
bobgiesberts | 8:8cc1960467ae | 69 | pc.printf( "%d", L ); |
bobgiesberts | 8:8cc1960467ae | 70 | //pc.printf( "%.3f MHz", ldc->get_fsensor()/1000000 ); |
bobgiesberts | 8:8cc1960467ae | 71 | //pc.printf( "%.3f KHz", (f - ldc->get_fsensor())/1000 ); |
bobgiesberts | 8:8cc1960467ae | 72 | |
bobgiesberts | 8:8cc1960467ae | 73 | pc.printf( "\r\n" ); |
bobgiesberts | 8:8cc1960467ae | 74 | wait( 10 ); // 20 Hz |
bobgiesberts | 7:6c4cac1ec122 | 75 | } |
bobgiesberts | 7:6c4cac1ec122 | 76 | } |
bobgiesberts | 7:6c4cac1ec122 | 77 | |
bobgiesberts | 7:6c4cac1ec122 | 78 | |
bobgiesberts | 7:6c4cac1ec122 | 79 | |
bobgiesberts | 6:ff39d60061ca | 80 | bob.flash(2); |
bobgiesberts | 8:8cc1960467ae | 81 | pc.printf( "check sd: %d\r\n", bob.checkSD() ); |
bobgiesberts | 6:ff39d60061ca | 82 | // Load SD File system |
bobgiesberts | 8:8cc1960467ae | 83 | |
bobgiesberts | 8:8cc1960467ae | 84 | |
bobgiesberts | 8:8cc1960467ae | 85 | // bob.wakeup(); |
bobgiesberts | 6:ff39d60061ca | 86 | bob.SDon(); |
bobgiesberts | 6:ff39d60061ca | 87 | SDFileSystem *sd = new SDFileSystem(PTD6, PTD7, PTD5, PTD4, "sd"); |
bobgiesberts | 5:736a81a59f3c | 88 | |
bobgiesberts | 6:ff39d60061ca | 89 | // Create a new data file (data00.txt) |
bobgiesberts | 4:ae441c5727b9 | 90 | mkdir("/sd", 0777); |
bobgiesberts | 4:ae441c5727b9 | 91 | for(uint8_t i = 0; i < 100; i++) { |
bobgiesberts | 6:ff39d60061ca | 92 | filename[8] = i/10 + '0'; |
bobgiesberts | 4:ae441c5727b9 | 93 | filename[9] = i%10 + '0'; |
bobgiesberts | 4:ae441c5727b9 | 94 | fp = fopen( filename.c_str() , "r" ); |
bobgiesberts | 4:ae441c5727b9 | 95 | if( fp == NULL ) { // read failed so file does not exist |
bobgiesberts | 4:ae441c5727b9 | 96 | fp = fopen( filename.c_str(), "w" ); // create it |
bobgiesberts | 4:ae441c5727b9 | 97 | if( fp != NULL ){ |
bobgiesberts | 4:ae441c5727b9 | 98 | fn = filename.c_str(); |
bobgiesberts | 6:ff39d60061ca | 99 | fclose( fp ); |
bobgiesberts | 4:ae441c5727b9 | 100 | break; |
bobgiesberts | 4:ae441c5727b9 | 101 | }else{ |
bobgiesberts | 6:ff39d60061ca | 102 | bob.red(); |
bobgiesberts | 4:ae441c5727b9 | 103 | } |
bobgiesberts | 4:ae441c5727b9 | 104 | }else{ // file already exists |
bobgiesberts | 4:ae441c5727b9 | 105 | fclose( fp ); |
bobgiesberts | 4:ae441c5727b9 | 106 | } |
bobgiesberts | 1:22c272515015 | 107 | } |
bobgiesberts | 8:8cc1960467ae | 108 | |
bobgiesberts | 6:ff39d60061ca | 109 | // Unload SD File system |
bobgiesberts | 6:ff39d60061ca | 110 | delete sd; sd = NULL; |
bobgiesberts | 5:736a81a59f3c | 111 | |
bobgiesberts | 5:736a81a59f3c | 112 | |
bobgiesberts | 6:ff39d60061ca | 113 | while(1) |
bobgiesberts | 6:ff39d60061ca | 114 | { |
bobgiesberts | 6:ff39d60061ca | 115 | // SD on + sensor on |
bobgiesberts | 6:ff39d60061ca | 116 | bob.SDon(); |
bobgiesberts | 5:736a81a59f3c | 117 | |
bobgiesberts | 6:ff39d60061ca | 118 | // Sensor on |
bobgiesberts | 6:ff39d60061ca | 119 | LDC1101 *ldc = new LDC1101(PTC6, PTC7, PTC5, PTC4, C, 16E6); |
bobgiesberts | 6:ff39d60061ca | 120 | |
bobgiesberts | 6:ff39d60061ca | 121 | // SD on |
bobgiesberts | 6:ff39d60061ca | 122 | SDFileSystem *sd = new SDFileSystem(PTD6, PTD7, PTD5, PTD4, "sd"); |
bobgiesberts | 6:ff39d60061ca | 123 | mkdir("/sd", 0777); // select folder |
bobgiesberts | 6:ff39d60061ca | 124 | |
bobgiesberts | 8:8cc1960467ae | 125 | // time |
bobgiesberts | 8:8cc1960467ae | 126 | prev = now; // 0 -> 429 496 --> (4 294,96 s) (71 min) |
bobgiesberts | 8:8cc1960467ae | 127 | now = (uint32_t) clock(); // 0 -> 429 496 --> (4 294,96 s) (71 min) |
bobgiesberts | 8:8cc1960467ae | 128 | if( now < prev ) t_high++; // 0 -> 255 --> (255*4 294,96 s) (12 days) |
bobgiesberts | 8:8cc1960467ae | 129 | S = now + 429496.7296*t_high + lost + 429496.7296*lost_high; // 0 -> 219 901 952 --> (2 199 019,52 s) (25 days) |
bobgiesberts | 8:8cc1960467ae | 130 | |
bobgiesberts | 8:8cc1960467ae | 131 | // first time take a comfortably long period |
bobgiesberts | 8:8cc1960467ae | 132 | if( next == 0 ){ |
bobgiesberts | 8:8cc1960467ae | 133 | next = S + (INTERVAL_ON + INTERVAL_OFF)*100; |
bobgiesberts | 8:8cc1960467ae | 134 | }else{ |
bobgiesberts | 8:8cc1960467ae | 135 | next = S + INTERVAL_ON*100; // 0 -> 219 904 952 --> (2 199 049,52 s) (25 days) |
bobgiesberts | 8:8cc1960467ae | 136 | } |
bobgiesberts | 6:ff39d60061ca | 137 | |
bobgiesberts | 6:ff39d60061ca | 138 | // Take samples for INTERVAL_ON seconds |
bobgiesberts | 8:8cc1960467ae | 139 | while( S < next ) |
bobgiesberts | 6:ff39d60061ca | 140 | { |
bobgiesberts | 6:ff39d60061ca | 141 | // Collect a package 16 data points |
bobgiesberts | 6:ff39d60061ca | 142 | while( Lvector.size() < 16 ) // Write is per 512 bits: 16 * 32 = 512 |
bobgiesberts | 6:ff39d60061ca | 143 | { |
bobgiesberts | 6:ff39d60061ca | 144 | // wait for new data to be ready |
bobgiesberts | 7:6c4cac1ec122 | 145 | while( !ldc->is_New_LHR_data() ) { } |
bobgiesberts | 6:ff39d60061ca | 146 | |
bobgiesberts | 6:ff39d60061ca | 147 | if( !ldc->is_Oscillation_Error() ){ // sensor not overloaded |
bobgiesberts | 6:ff39d60061ca | 148 | // time |
bobgiesberts | 6:ff39d60061ca | 149 | prev = now; |
bobgiesberts | 6:ff39d60061ca | 150 | now = (uint32_t) clock(); |
bobgiesberts | 6:ff39d60061ca | 151 | if( now < prev ) t_high++; |
bobgiesberts | 7:6c4cac1ec122 | 152 | S = now + 429496.7296*t_high + lost + 429496.7296*lost_high; |
bobgiesberts | 6:ff39d60061ca | 153 | |
bobgiesberts | 6:ff39d60061ca | 154 | // induction |
bobgiesberts | 6:ff39d60061ca | 155 | L = ldc->get_LHR_Data(); |
bobgiesberts | 8:8cc1960467ae | 156 | |
bobgiesberts | 8:8cc1960467ae | 157 | // Store data in temporal memory |
bobgiesberts | 8:8cc1960467ae | 158 | Svector.push_back( S ); |
bobgiesberts | 7:6c4cac1ec122 | 159 | Lvector.push_back( L ); |
bobgiesberts | 6:ff39d60061ca | 160 | } |
bobgiesberts | 6:ff39d60061ca | 161 | } |
bobgiesberts | 8:8cc1960467ae | 162 | |
bobgiesberts | 9:47f1b1c0ef8b | 163 | pc.printf("%d; %02x\r\n", L, ldc->get_LHR_status() ); |
bobgiesberts | 8:8cc1960467ae | 164 | |
bobgiesberts | 6:ff39d60061ca | 165 | // battery level |
bobgiesberts | 6:ff39d60061ca | 166 | batt = bob.battery(); |
bobgiesberts | 5:736a81a59f3c | 167 | |
bobgiesberts | 6:ff39d60061ca | 168 | // Store the package of 16 data points |
bobgiesberts | 7:6c4cac1ec122 | 169 | bob.green(); |
bobgiesberts | 6:ff39d60061ca | 170 | fp = fopen( fn, "a" ); // open file |
bobgiesberts | 6:ff39d60061ca | 171 | for( int i = 0; i < Lvector.size(); i++ ) |
bobgiesberts | 7:6c4cac1ec122 | 172 | fprintf( fp, "%.2f;%d;%.4f\r\n", (float) Svector.at(i)/100.0, Lvector.at(i), batt ); // write to file |
bobgiesberts | 6:ff39d60061ca | 173 | fclose( fp ); // close file |
bobgiesberts | 7:6c4cac1ec122 | 174 | bob.greenoff(); |
bobgiesberts | 8:8cc1960467ae | 175 | |
bobgiesberts | 8:8cc1960467ae | 176 | |
bobgiesberts | 6:ff39d60061ca | 177 | // Release data |
bobgiesberts | 6:ff39d60061ca | 178 | Lvector.clear(); |
bobgiesberts | 6:ff39d60061ca | 179 | Svector.clear(); |
bobgiesberts | 6:ff39d60061ca | 180 | |
bobgiesberts | 6:ff39d60061ca | 181 | } |
bobgiesberts | 6:ff39d60061ca | 182 | |
bobgiesberts | 6:ff39d60061ca | 183 | // SD off |
bobgiesberts | 6:ff39d60061ca | 184 | delete sd; sd = NULL; |
bobgiesberts | 6:ff39d60061ca | 185 | bob.SDoff(); |
bobgiesberts | 6:ff39d60061ca | 186 | DigitalOut *sdP2 = new DigitalOut(PTD4); sdP2->write(0); delete sdP2; sdP2 = NULL;// cs |
bobgiesberts | 6:ff39d60061ca | 187 | DigitalOut *sdP3 = new DigitalOut(PTD6); sdP3->write(0); delete sdP3; sdP3 = NULL;// mosi |
bobgiesberts | 6:ff39d60061ca | 188 | DigitalOut *sdP5 = new DigitalOut(PTD5); sdP5->write(0); delete sdP5; sdP5 = NULL;// sck |
bobgiesberts | 6:ff39d60061ca | 189 | DigitalOut *sdP7 = new DigitalOut(PTD7); sdP7->write(0); delete sdP7; sdP7 = NULL;// miso |
bobgiesberts | 6:ff39d60061ca | 190 | |
bobgiesberts | 6:ff39d60061ca | 191 | // Sensor off |
bobgiesberts | 6:ff39d60061ca | 192 | delete ldc; ldc = NULL; |
bobgiesberts | 6:ff39d60061ca | 193 | DigitalOut *senP2 = new DigitalOut(PTC7); senP2->write(0); delete senP2; senP2 = NULL; // miso |
bobgiesberts | 6:ff39d60061ca | 194 | DigitalOut *senP3 = new DigitalOut(PTC5); senP3->write(0); delete senP3; senP3 = NULL; // sck |
bobgiesberts | 6:ff39d60061ca | 195 | DigitalOut *senP4 = new DigitalOut(PTC6); senP4->write(0); delete senP4; senP4 = NULL; // mosi |
bobgiesberts | 6:ff39d60061ca | 196 | DigitalOut *senP5 = new DigitalOut(PTC4); senP5->write(0); delete senP5; senP5 = NULL; // cs |
bobgiesberts | 6:ff39d60061ca | 197 | |
bobgiesberts | 8:8cc1960467ae | 198 | |
bobgiesberts | 7:6c4cac1ec122 | 199 | |
bobgiesberts | 8:8cc1960467ae | 200 | // Calculate sleeping time (correction to INTERVAL_OFF) |
bobgiesberts | 8:8cc1960467ae | 201 | prev = now; |
bobgiesberts | 8:8cc1960467ae | 202 | now = (uint32_t) clock(); |
bobgiesberts | 8:8cc1960467ae | 203 | if( now < prev ) t_high++; |
bobgiesberts | 8:8cc1960467ae | 204 | S = now + 429496.7296*t_high + lost + 429496.7296*lost_high; |
bobgiesberts | 6:ff39d60061ca | 205 | |
bobgiesberts | 8:8cc1960467ae | 206 | t_sleep = ( INTERVAL_OFF*100 - (S - next) ); |
bobgiesberts | 8:8cc1960467ae | 207 | |
bobgiesberts | 6:ff39d60061ca | 208 | // Add lost time to the counter |
bobgiesberts | 6:ff39d60061ca | 209 | lost_prev = lost; |
bobgiesberts | 8:8cc1960467ae | 210 | lost += t_sleep; |
bobgiesberts | 6:ff39d60061ca | 211 | if( lost < lost_prev ) lost_high++; |
bobgiesberts | 8:8cc1960467ae | 212 | |
bobgiesberts | 8:8cc1960467ae | 213 | // Sleep now... |
bobgiesberts | 8:8cc1960467ae | 214 | // pc.printf( "zzz... (%f) \r\n\r\n", (float) (t_sleep / 100.0) ); |
bobgiesberts | 8:8cc1960467ae | 215 | bob.sleep( (float) ( t_sleep / 100.0) ); |
bobgiesberts | 8:8cc1960467ae | 216 | |
bobgiesberts | 0:e81b68888268 | 217 | } |
bobgiesberts | 6:ff39d60061ca | 218 | |
bobgiesberts | 0:e81b68888268 | 219 | } |