JanPaul Bergeson / Mbed 2 deprecated All_Combined_with_XBee

added spectrometer timeout

Dependencies:   SDFileSystem mbed

Fork of All_Combined_Real2 by Colin Maxfield

main.cpp@10:6ecdb63e6698, 2016-04-11 (annotated)

Committer:
jphbergeson
Date:
Mon Apr 11 19:01:23 2016 +0000
Revision:
10:6ecdb63e6698
Parent:
9:924d80730ac5
Child:
11:dc884cb71bfa
fixed a typo;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jphbergeson 0:26713d1db198 1 #include "mbed.h"
jphbergeson 0:26713d1db198 2 #include "nmea.h"
jphbergeson 0:26713d1db198 3 #include "SDFileSystem.h"
jphbergeson 1:5fa445bd14a6 4 #include "SPI.h"
jphbergeson 3:c611fff05072 5 #include "temp_sensor.h"
colingm 5:6532c5a5f576 6 #include "XBeeLib.h"
jphbergeson 0:26713d1db198 7
jphbergeson 1:5fa445bd14a6 8 #define NUM_PIXELS 2048
jphbergeson 0:26713d1db198 9 #define BUF_SIZE 1024
jphbergeson 6:059312376781 10 #define SPECTROMETER_TIMEOUT 1000
jphbergeson 2:146625d6992d 11
jphbergeson 9:924d80730ac5 12 // Temperatures when to turn on the cooling device, and when to shut off the light source
jphbergeson 9:924d80730ac5 13 #define OVERHEATING_TEMP 33.0
jphbergeson 9:924d80730ac5 14 #define START_COOLING_TEMP 28.0
jphbergeson 9:924d80730ac5 15
jphbergeson 9:924d80730ac5 16 // pins for SSR's:
jphbergeson 9:924d80730ac5 17 // PTB9 > Spectrometer
jphbergeson 9:924d80730ac5 18 // PTA0 > Light Source
jphbergeson 9:924d80730ac5 19 // PTD0 > Cooling Unit
jphbergeson 9:924d80730ac5 20 DigitalOut spectrometer_ssr(PTB9);
jphbergeson 9:924d80730ac5 21 DigitalOut lightsource_ssr(PTA0);
jphbergeson 9:924d80730ac5 22 DigitalOut cooling_ssr(PTD0);
jphbergeson 9:924d80730ac5 23
jphbergeson 2:146625d6992d 24 // TODO make a new file (name=timestamp) each time we start recording data
jphbergeson 1:5fa445bd14a6 25 #define OUTPUT_FILE "/sd/data.csv"
jphbergeson 0:26713d1db198 26
jphbergeson 1:5fa445bd14a6 27 // pinout for spectrometer
jphbergeson 1:5fa445bd14a6 28
jphbergeson 1:5fa445bd14a6 29 // Mosi (#8) -> PTD2
jphbergeson 1:5fa445bd14a6 30 // Miso (#7) -> PTD3
jphbergeson 1:5fa445bd14a6 31 // Sclk (#9) -> PTD1
jphbergeson 1:5fa445bd14a6 32
jphbergeson 1:5fa445bd14a6 33 // Pixel_rdy (#6) -> PTA1
jphbergeson 1:5fa445bd14a6 34 // Fifo_cs (#3) -> PTB23
jphbergeson 1:5fa445bd14a6 35 // Trigger (#13) -> PTA2
jphbergeson 2:146625d6992d 36
jphbergeson 4:70411c8dadcc 37 // spi_cs (#10) -> PTC2
jphbergeson 4:70411c8dadcc 38
jphbergeson 1:5fa445bd14a6 39 SPI spi(PTD2, PTD3, PTD1); // mosi, miso, sclk
jphbergeson 1:5fa445bd14a6 40
jphbergeson 4:70411c8dadcc 41 DigitalOut spi_cs(PTC2);
jphbergeson 4:70411c8dadcc 42
jphbergeson 1:5fa445bd14a6 43 DigitalIn pixel_rdy(PTA1);
jphbergeson 1:5fa445bd14a6 44 DigitalOut fifo_cs(PTB23);
jphbergeson 1:5fa445bd14a6 45 DigitalOut trigger(PTA2);
jphbergeson 1:5fa445bd14a6 46
jphbergeson 1:5fa445bd14a6 47 // Blinking red LED
jphbergeson 0:26713d1db198 48 DigitalOut led(LED_RED);
jphbergeson 0:26713d1db198 49
jphbergeson 1:5fa445bd14a6 50 // GPS connection (through arduino)
jphbergeson 0:26713d1db198 51 Serial duino(PTC4, PTC3);
jphbergeson 1:5fa445bd14a6 52
jphbergeson 1:5fa445bd14a6 53 // USB serial to PC
jphbergeson 0:26713d1db198 54 Serial pc(USBTX, USBRX);
jphbergeson 0:26713d1db198 55
jphbergeson 0:26713d1db198 56 /**************************************************
jphbergeson 0:26713d1db198 57 ** SD FILE SYSTEM **
jphbergeson 0:26713d1db198 58 **************************************************/
jphbergeson 0:26713d1db198 59 SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd");
jphbergeson 0:26713d1db198 60 FILE *fpData;
jphbergeson 0:26713d1db198 61
jphbergeson 2:146625d6992d 62 void read_pixels()
jphbergeson 2:146625d6992d 63 {
colingm 5:6532c5a5f576 64 char data[NUM_PIXELS];
jphbergeson 6:059312376781 65 int cycles_waited = 0;
jphbergeson 1:5fa445bd14a6 66 for (int i = 0; i < NUM_PIXELS; i++) {
jphbergeson 6:059312376781 67 while (!pixel_rdy) {
jphbergeson 6:059312376781 68 cycles_waited++;
jphbergeson 6:059312376781 69 if (cycles_waited > SPECTROMETER_TIMEOUT)
jphbergeson 6:059312376781 70 break;
jphbergeson 6:059312376781 71 }
jphbergeson 1:5fa445bd14a6 72 fifo_cs = 0;
jphbergeson 1:5fa445bd14a6 73 data[i] = spi.write(0x00); // write a dummy byte just to read the data
jphbergeson 1:5fa445bd14a6 74 fifo_cs = 1;
jphbergeson 2:146625d6992d 75
jphbergeson 6:059312376781 76 if (cycles_waited > SPECTROMETER_TIMEOUT)
jphbergeson 6:059312376781 77 pc.printf("timed out\r\n");
jphbergeson 6:059312376781 78 cycles_waited = 0;
jphbergeson 1:5fa445bd14a6 79 }
jphbergeson 2:146625d6992d 80
jphbergeson 1:5fa445bd14a6 81 // write to file and pc
jphbergeson 1:5fa445bd14a6 82 fpData = fopen(OUTPUT_FILE, "a");
jphbergeson 2:146625d6992d 83 for (int i = 0; i < NUM_PIXELS; i++) {
jphbergeson 1:5fa445bd14a6 84 pc.printf(",%d", data[i]);
jphbergeson 1:5fa445bd14a6 85 fprintf(fpData, ",%d", data[i]);
jphbergeson 1:5fa445bd14a6 86 }
jphbergeson 1:5fa445bd14a6 87 pc.printf("\r\n");
jphbergeson 1:5fa445bd14a6 88 fprintf(fpData, "\r\n");
jphbergeson 1:5fa445bd14a6 89 fclose(fpData);
colingm 8:6a694f87fb13 90
colingm 5:6532c5a5f576 91 XBeeSend((const char *)data, 2048);
jphbergeson 1:5fa445bd14a6 92 }
jphbergeson 1:5fa445bd14a6 93
jphbergeson 2:146625d6992d 94 void gps_read() {
jphbergeson 2:146625d6992d 95 char buffer[BUF_SIZE];
jphbergeson 2:146625d6992d 96
jphbergeson 2:146625d6992d 97 get_nmea(&duino, buffer, BUF_SIZE);
jphbergeson 2:146625d6992d 98
jphbergeson 2:146625d6992d 99 struct NMEA_data nmea = parse_line(buffer);
jphbergeson 2:146625d6992d 100
jphbergeson 2:146625d6992d 101 // determine whether there's a lock
jphbergeson 2:146625d6992d 102 char lock_str[BUF_SIZE];
jphbergeson 2:146625d6992d 103 if ( nmea.lock_flag == 'A' )
jphbergeson 2:146625d6992d 104 sprintf(lock_str, "Has lock");
jphbergeson 2:146625d6992d 105 else
jphbergeson 2:146625d6992d 106 sprintf(lock_str, "No lock");
jphbergeson 2:146625d6992d 107
jphbergeson 2:146625d6992d 108 // assemble data into summary string
jphbergeson 2:146625d6992d 109 char status_str[BUF_SIZE];
jphbergeson 2:146625d6992d 110 sprintf(status_str, "%02d:%02d:%02d,%d/%d/%d,%dd %lf' %c %dd %lf' %c,%s",
jphbergeson 2:146625d6992d 111 nmea.hours, nmea.minutes, nmea.seconds,
jphbergeson 2:146625d6992d 112 nmea.month, nmea.day, nmea.year,
jphbergeson 2:146625d6992d 113 nmea.latitude, nmea.latitude_minutes, nmea.latitude_direction,
jphbergeson 2:146625d6992d 114 nmea.longitude, nmea.longitude_minutes, nmea.longitude_direction, lock_str);
jphbergeson 2:146625d6992d 115
jphbergeson 2:146625d6992d 116 // print to pc, sd card
jphbergeson 2:146625d6992d 117 pc.printf("%s", status_str);
jphbergeson 2:146625d6992d 118
jphbergeson 2:146625d6992d 119 fpData = fopen(OUTPUT_FILE, "a");
jphbergeson 2:146625d6992d 120 fprintf(fpData, "%s", status_str);
jphbergeson 2:146625d6992d 121 fclose(fpData);
colingm 8:6a694f87fb13 122
colingm 8:6a694f87fb13 123 XBeeSend((const char *)status_str, strlen(status_str));
jphbergeson 2:146625d6992d 124 }
jphbergeson 2:146625d6992d 125
jphbergeson 0:26713d1db198 126 int main()
jphbergeson 0:26713d1db198 127 {
jphbergeson 9:924d80730ac5 128 // turn on light source & spectrometer, start with cooling unit off
jphbergeson 9:924d80730ac5 129 lightsource_ssr = 1;
jphbergeson 9:924d80730ac5 130 spectrometer_ssr = 1;
jphbergeson 9:924d80730ac5 131 cooling_ssr = 0;
jphbergeson 9:924d80730ac5 132
jphbergeson 0:26713d1db198 133 pc.baud(115200); // make sure to set computer TERA Term or whatever to 115200 baud!!!
jphbergeson 0:26713d1db198 134 duino.baud(9600);
jphbergeson 0:26713d1db198 135 pc.printf("Initializing ...\r\n");
jphbergeson 2:146625d6992d 136
colingm 5:6532c5a5f576 137 XBeeInit(&pc);
jphbergeson 1:5fa445bd14a6 138 fifo_cs = 1;
jphbergeson 1:5fa445bd14a6 139 trigger = 0;
jphbergeson 1:5fa445bd14a6 140 wait(0.5f);
jphbergeson 3:c611fff05072 141
jphbergeson 3:c611fff05072 142 init_temp_sensor(); // TODO: stop execution & send error message if can't init temp sensor (or other things)
jphbergeson 2:146625d6992d 143
jphbergeson 2:146625d6992d 144
jphbergeson 0:26713d1db198 145 while (true) {
jphbergeson 2:146625d6992d 146
jphbergeson 0:26713d1db198 147 led = !led;
jphbergeson 2:146625d6992d 148
jphbergeson 7:a125a1fa4694 149 gps_read();
jphbergeson 3:c611fff05072 150 check_temp();
jphbergeson 3:c611fff05072 151 // Display result
jphbergeson 3:c611fff05072 152 pc.printf(",%s", TempCelsiusDisplay);
jphbergeson 3:c611fff05072 153 fpData = fopen(OUTPUT_FILE, "a");
jphbergeson 3:c611fff05072 154 fprintf(fpData, ",%s", TempCelsiusDisplay);
jphbergeson 3:c611fff05072 155 fclose(fpData);
jphbergeson 2:146625d6992d 156
jphbergeson 6:059312376781 157 // Trigger an acquisition from spectrometer
jphbergeson 1:5fa445bd14a6 158 trigger = 1;
jphbergeson 1:5fa445bd14a6 159 wait_ms(1);
jphbergeson 1:5fa445bd14a6 160 trigger = 0;
jphbergeson 1:5fa445bd14a6 161 read_pixels();
jphbergeson 9:924d80730ac5 162
jphbergeson 9:924d80730ac5 163 if (tempCelsiusDouble > OVERHEATING_TEMP) {
jphbergeson 9:924d80730ac5 164 // turn off light source & spectrometer
jphbergeson 10:6ecdb63e6698 165 lightsource_ssr = 0;
jphbergeson 10:6ecdb63e6698 166 spectrometer_ssr = 0;
jphbergeson 9:924d80730ac5 167 cooling_ssr = 1;
jphbergeson 9:924d80730ac5 168
jphbergeson 9:924d80730ac5 169 // spin here -- just need to cool off.
jphbergeson 9:924d80730ac5 170 // Can turn back on if you want by breaking out of this loop.
jphbergeson 9:924d80730ac5 171 // For now just turn off forever.
jphbergeson 9:924d80730ac5 172 while (1);
jphbergeson 9:924d80730ac5 173 }
jphbergeson 9:924d80730ac5 174
jphbergeson 9:924d80730ac5 175 if (tempCelsiusDouble > START_COOLING_TEMP) {
jphbergeson 9:924d80730ac5 176 // turn on cooling
jphbergeson 9:924d80730ac5 177 cooling_ssr = 1;
jphbergeson 9:924d80730ac5 178 } else {
jphbergeson 9:924d80730ac5 179 // turn off cooling
jphbergeson 9:924d80730ac5 180 cooling_ssr = 0;
jphbergeson 9:924d80730ac5 181 }
jphbergeson 9:924d80730ac5 182
jphbergeson 0:26713d1db198 183 wait(0.5f);
jphbergeson 0:26713d1db198 184 }
jphbergeson 0:26713d1db198 185 }