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@8:6a694f87fb13, 2016-04-04 (annotated)

Committer:
colingm
Date:
Mon Apr 04 18:30:02 2016 +0000
Revision:
8:6a694f87fb13
Parent:
7:a125a1fa4694
Child:
9:924d80730ac5
Adding sending of GPS Data

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 2:146625d6992d 12 // TODO make a new file (name=timestamp) each time we start recording data
jphbergeson 1:5fa445bd14a6 13 #define OUTPUT_FILE "/sd/data.csv"
jphbergeson 0:26713d1db198 14
jphbergeson 1:5fa445bd14a6 15 // pinout for spectrometer
jphbergeson 1:5fa445bd14a6 16
jphbergeson 1:5fa445bd14a6 17 // Mosi (#8) -> PTD2
jphbergeson 1:5fa445bd14a6 18 // Miso (#7) -> PTD3
jphbergeson 1:5fa445bd14a6 19 // Sclk (#9) -> PTD1
jphbergeson 1:5fa445bd14a6 20
jphbergeson 1:5fa445bd14a6 21 // Pixel_rdy (#6) -> PTA1
jphbergeson 1:5fa445bd14a6 22 // Fifo_cs (#3) -> PTB23
jphbergeson 1:5fa445bd14a6 23 // Trigger (#13) -> PTA2
jphbergeson 2:146625d6992d 24
jphbergeson 4:70411c8dadcc 25 // spi_cs (#10) -> PTC2
jphbergeson 4:70411c8dadcc 26
jphbergeson 1:5fa445bd14a6 27 SPI spi(PTD2, PTD3, PTD1); // mosi, miso, sclk
jphbergeson 1:5fa445bd14a6 28
jphbergeson 4:70411c8dadcc 29 DigitalOut spi_cs(PTC2);
jphbergeson 4:70411c8dadcc 30
jphbergeson 1:5fa445bd14a6 31 DigitalIn pixel_rdy(PTA1);
jphbergeson 1:5fa445bd14a6 32 DigitalOut fifo_cs(PTB23);
jphbergeson 1:5fa445bd14a6 33 DigitalOut trigger(PTA2);
jphbergeson 1:5fa445bd14a6 34
jphbergeson 1:5fa445bd14a6 35 // Blinking red LED
jphbergeson 0:26713d1db198 36 DigitalOut led(LED_RED);
jphbergeson 0:26713d1db198 37
jphbergeson 1:5fa445bd14a6 38 // GPS connection (through arduino)
jphbergeson 0:26713d1db198 39 Serial duino(PTC4, PTC3);
jphbergeson 1:5fa445bd14a6 40
jphbergeson 1:5fa445bd14a6 41 // USB serial to PC
jphbergeson 0:26713d1db198 42 Serial pc(USBTX, USBRX);
jphbergeson 0:26713d1db198 43
jphbergeson 0:26713d1db198 44 /**************************************************
jphbergeson 0:26713d1db198 45 ** SD FILE SYSTEM **
jphbergeson 0:26713d1db198 46 **************************************************/
jphbergeson 0:26713d1db198 47 SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd");
jphbergeson 0:26713d1db198 48 FILE *fpData;
jphbergeson 0:26713d1db198 49
jphbergeson 2:146625d6992d 50 void read_pixels()
jphbergeson 2:146625d6992d 51 {
colingm 5:6532c5a5f576 52 char data[NUM_PIXELS];
jphbergeson 6:059312376781 53 int cycles_waited = 0;
jphbergeson 1:5fa445bd14a6 54 for (int i = 0; i < NUM_PIXELS; i++) {
jphbergeson 6:059312376781 55 while (!pixel_rdy) {
jphbergeson 6:059312376781 56 cycles_waited++;
jphbergeson 6:059312376781 57 if (cycles_waited > SPECTROMETER_TIMEOUT)
jphbergeson 6:059312376781 58 break;
jphbergeson 6:059312376781 59 }
jphbergeson 1:5fa445bd14a6 60 fifo_cs = 0;
jphbergeson 1:5fa445bd14a6 61 data[i] = spi.write(0x00); // write a dummy byte just to read the data
jphbergeson 1:5fa445bd14a6 62 fifo_cs = 1;
jphbergeson 2:146625d6992d 63
jphbergeson 6:059312376781 64 if (cycles_waited > SPECTROMETER_TIMEOUT)
jphbergeson 6:059312376781 65 pc.printf("timed out\r\n");
jphbergeson 6:059312376781 66 cycles_waited = 0;
jphbergeson 1:5fa445bd14a6 67 }
jphbergeson 2:146625d6992d 68
jphbergeson 1:5fa445bd14a6 69 // write to file and pc
jphbergeson 1:5fa445bd14a6 70 fpData = fopen(OUTPUT_FILE, "a");
jphbergeson 2:146625d6992d 71 for (int i = 0; i < NUM_PIXELS; i++) {
jphbergeson 1:5fa445bd14a6 72 pc.printf(",%d", data[i]);
jphbergeson 1:5fa445bd14a6 73 fprintf(fpData, ",%d", data[i]);
jphbergeson 1:5fa445bd14a6 74 }
jphbergeson 1:5fa445bd14a6 75 pc.printf("\r\n");
jphbergeson 1:5fa445bd14a6 76 fprintf(fpData, "\r\n");
jphbergeson 1:5fa445bd14a6 77 fclose(fpData);
colingm 8:6a694f87fb13 78
colingm 5:6532c5a5f576 79 XBeeSend((const char *)data, 2048);
jphbergeson 1:5fa445bd14a6 80 }
jphbergeson 1:5fa445bd14a6 81
jphbergeson 2:146625d6992d 82 void gps_read() {
jphbergeson 2:146625d6992d 83 char buffer[BUF_SIZE];
jphbergeson 2:146625d6992d 84
jphbergeson 2:146625d6992d 85 get_nmea(&duino, buffer, BUF_SIZE);
jphbergeson 2:146625d6992d 86
jphbergeson 2:146625d6992d 87 struct NMEA_data nmea = parse_line(buffer);
jphbergeson 2:146625d6992d 88
jphbergeson 2:146625d6992d 89 // determine whether there's a lock
jphbergeson 2:146625d6992d 90 char lock_str[BUF_SIZE];
jphbergeson 2:146625d6992d 91 if ( nmea.lock_flag == 'A' )
jphbergeson 2:146625d6992d 92 sprintf(lock_str, "Has lock");
jphbergeson 2:146625d6992d 93 else
jphbergeson 2:146625d6992d 94 sprintf(lock_str, "No lock");
jphbergeson 2:146625d6992d 95
jphbergeson 2:146625d6992d 96 // assemble data into summary string
jphbergeson 2:146625d6992d 97 char status_str[BUF_SIZE];
jphbergeson 2:146625d6992d 98 sprintf(status_str, "%02d:%02d:%02d,%d/%d/%d,%dd %lf' %c %dd %lf' %c,%s",
jphbergeson 2:146625d6992d 99 nmea.hours, nmea.minutes, nmea.seconds,
jphbergeson 2:146625d6992d 100 nmea.month, nmea.day, nmea.year,
jphbergeson 2:146625d6992d 101 nmea.latitude, nmea.latitude_minutes, nmea.latitude_direction,
jphbergeson 2:146625d6992d 102 nmea.longitude, nmea.longitude_minutes, nmea.longitude_direction, lock_str);
jphbergeson 2:146625d6992d 103
jphbergeson 2:146625d6992d 104 // print to pc, sd card
jphbergeson 2:146625d6992d 105 pc.printf("%s", status_str);
jphbergeson 2:146625d6992d 106
jphbergeson 2:146625d6992d 107 fpData = fopen(OUTPUT_FILE, "a");
jphbergeson 2:146625d6992d 108 fprintf(fpData, "%s", status_str);
jphbergeson 2:146625d6992d 109 fclose(fpData);
colingm 8:6a694f87fb13 110
colingm 8:6a694f87fb13 111 XBeeSend((const char *)status_str, strlen(status_str));
jphbergeson 2:146625d6992d 112 }
jphbergeson 2:146625d6992d 113
jphbergeson 0:26713d1db198 114 int main()
jphbergeson 0:26713d1db198 115 {
jphbergeson 0:26713d1db198 116 pc.baud(115200); // make sure to set computer TERA Term or whatever to 115200 baud!!!
jphbergeson 0:26713d1db198 117 duino.baud(9600);
jphbergeson 0:26713d1db198 118 pc.printf("Initializing ...\r\n");
jphbergeson 2:146625d6992d 119
colingm 5:6532c5a5f576 120 XBeeInit(&pc);
jphbergeson 1:5fa445bd14a6 121 fifo_cs = 1;
jphbergeson 1:5fa445bd14a6 122 trigger = 0;
jphbergeson 1:5fa445bd14a6 123 wait(0.5f);
jphbergeson 3:c611fff05072 124
jphbergeson 3:c611fff05072 125 init_temp_sensor(); // TODO: stop execution & send error message if can't init temp sensor (or other things)
jphbergeson 2:146625d6992d 126
jphbergeson 2:146625d6992d 127
jphbergeson 0:26713d1db198 128 while (true) {
jphbergeson 2:146625d6992d 129
jphbergeson 0:26713d1db198 130 led = !led;
jphbergeson 2:146625d6992d 131
jphbergeson 7:a125a1fa4694 132 gps_read();
jphbergeson 3:c611fff05072 133 check_temp();
jphbergeson 3:c611fff05072 134 // Display result
jphbergeson 3:c611fff05072 135 pc.printf(",%s", TempCelsiusDisplay);
jphbergeson 3:c611fff05072 136 fpData = fopen(OUTPUT_FILE, "a");
jphbergeson 3:c611fff05072 137 fprintf(fpData, ",%s", TempCelsiusDisplay);
jphbergeson 3:c611fff05072 138 fclose(fpData);
jphbergeson 2:146625d6992d 139
jphbergeson 6:059312376781 140 // Trigger an acquisition from spectrometer
jphbergeson 1:5fa445bd14a6 141 trigger = 1;
jphbergeson 1:5fa445bd14a6 142 wait_ms(1);
jphbergeson 1:5fa445bd14a6 143 trigger = 0;
jphbergeson 1:5fa445bd14a6 144 read_pixels();
jphbergeson 0:26713d1db198 145 wait(0.5f);
jphbergeson 0:26713d1db198 146 }
jphbergeson 0:26713d1db198 147 }