JanPaul Bergeson / Mbed 2 deprecated All_Combined_Real

starting integration with XBee

Dependencies:   SDFileSystem mbed

main.cpp@2:146625d6992d, 2016-03-15 (annotated)

Committer:
jphbergeson
Date:
Tue Mar 15 17:48:34 2016 +0000
Revision:
2:146625d6992d
Parent:
1:5fa445bd14a6
Child:
3:c611fff05072
Working, broken out into coherent functions

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 0:26713d1db198 5
jphbergeson 1:5fa445bd14a6 6 #define NUM_PIXELS 2048
jphbergeson 0:26713d1db198 7 #define BUF_SIZE 1024
jphbergeson 2:146625d6992d 8
jphbergeson 2:146625d6992d 9 // TODO make a new file (name=timestamp) each time we start recording data
jphbergeson 1:5fa445bd14a6 10 #define OUTPUT_FILE "/sd/data.csv"
jphbergeson 0:26713d1db198 11
jphbergeson 1:5fa445bd14a6 12 // pinout for spectrometer
jphbergeson 1:5fa445bd14a6 13
jphbergeson 1:5fa445bd14a6 14 // Mosi (#8) -> PTD2
jphbergeson 1:5fa445bd14a6 15 // Miso (#7) -> PTD3
jphbergeson 1:5fa445bd14a6 16 // Sclk (#9) -> PTD1
jphbergeson 1:5fa445bd14a6 17
jphbergeson 1:5fa445bd14a6 18 // Pixel_rdy (#6) -> PTA1
jphbergeson 1:5fa445bd14a6 19 // Fifo_cs (#3) -> PTB23
jphbergeson 1:5fa445bd14a6 20 // Trigger (#13) -> PTA2
jphbergeson 2:146625d6992d 21
jphbergeson 1:5fa445bd14a6 22 SPI spi(PTD2, PTD3, PTD1); // mosi, miso, sclk
jphbergeson 1:5fa445bd14a6 23
jphbergeson 1:5fa445bd14a6 24 DigitalIn pixel_rdy(PTA1);
jphbergeson 1:5fa445bd14a6 25 DigitalOut fifo_cs(PTB23);
jphbergeson 1:5fa445bd14a6 26 DigitalOut trigger(PTA2);
jphbergeson 1:5fa445bd14a6 27
jphbergeson 1:5fa445bd14a6 28 // Blinking red LED
jphbergeson 0:26713d1db198 29 DigitalOut led(LED_RED);
jphbergeson 0:26713d1db198 30
jphbergeson 1:5fa445bd14a6 31 // GPS connection (through arduino)
jphbergeson 0:26713d1db198 32 Serial duino(PTC4, PTC3);
jphbergeson 1:5fa445bd14a6 33
jphbergeson 1:5fa445bd14a6 34 // USB serial to PC
jphbergeson 0:26713d1db198 35 Serial pc(USBTX, USBRX);
jphbergeson 0:26713d1db198 36
jphbergeson 0:26713d1db198 37 /**************************************************
jphbergeson 0:26713d1db198 38 ** SD FILE SYSTEM **
jphbergeson 0:26713d1db198 39 **************************************************/
jphbergeson 0:26713d1db198 40 SDFileSystem sd(PTE3, PTE1, PTE2, PTE4, "sd");
jphbergeson 0:26713d1db198 41 FILE *fpData;
jphbergeson 0:26713d1db198 42
jphbergeson 2:146625d6992d 43 void read_pixels()
jphbergeson 2:146625d6992d 44 {
jphbergeson 1:5fa445bd14a6 45 int data[NUM_PIXELS];
jphbergeson 1:5fa445bd14a6 46 for (int i = 0; i < NUM_PIXELS; i++) {
jphbergeson 2:146625d6992d 47
jphbergeson 1:5fa445bd14a6 48 while (!pixel_rdy);
jphbergeson 2:146625d6992d 49
jphbergeson 1:5fa445bd14a6 50 fifo_cs = 0;
jphbergeson 1:5fa445bd14a6 51 data[i] = spi.write(0x00); // write a dummy byte just to read the data
jphbergeson 1:5fa445bd14a6 52 fifo_cs = 1;
jphbergeson 2:146625d6992d 53
jphbergeson 1:5fa445bd14a6 54 }
jphbergeson 2:146625d6992d 55
jphbergeson 1:5fa445bd14a6 56 // write to file and pc
jphbergeson 1:5fa445bd14a6 57 fpData = fopen(OUTPUT_FILE, "a");
jphbergeson 2:146625d6992d 58 for (int i = 0; i < NUM_PIXELS; i++) {
jphbergeson 1:5fa445bd14a6 59 pc.printf(",%d", data[i]);
jphbergeson 1:5fa445bd14a6 60 fprintf(fpData, ",%d", data[i]);
jphbergeson 1:5fa445bd14a6 61 }
jphbergeson 1:5fa445bd14a6 62 pc.printf("\r\n");
jphbergeson 1:5fa445bd14a6 63 fprintf(fpData, "\r\n");
jphbergeson 1:5fa445bd14a6 64 fclose(fpData);
jphbergeson 1:5fa445bd14a6 65 }
jphbergeson 1:5fa445bd14a6 66
jphbergeson 2:146625d6992d 67 void gps_read() {
jphbergeson 2:146625d6992d 68 char buffer[BUF_SIZE];
jphbergeson 2:146625d6992d 69
jphbergeson 2:146625d6992d 70 get_nmea(&duino, buffer, BUF_SIZE);
jphbergeson 2:146625d6992d 71
jphbergeson 2:146625d6992d 72 struct NMEA_data nmea = parse_line(buffer);
jphbergeson 2:146625d6992d 73
jphbergeson 2:146625d6992d 74 // determine whether there's a lock
jphbergeson 2:146625d6992d 75 char lock_str[BUF_SIZE];
jphbergeson 2:146625d6992d 76 if ( nmea.lock_flag == 'A' )
jphbergeson 2:146625d6992d 77 sprintf(lock_str, "Has lock");
jphbergeson 2:146625d6992d 78 else
jphbergeson 2:146625d6992d 79 sprintf(lock_str, "No lock");
jphbergeson 2:146625d6992d 80
jphbergeson 2:146625d6992d 81 // assemble data into summary string
jphbergeson 2:146625d6992d 82 char status_str[BUF_SIZE];
jphbergeson 2:146625d6992d 83 sprintf(status_str, "%02d:%02d:%02d,%d/%d/%d,%dd %lf' %c %dd %lf' %c,%s",
jphbergeson 2:146625d6992d 84 nmea.hours, nmea.minutes, nmea.seconds,
jphbergeson 2:146625d6992d 85 nmea.month, nmea.day, nmea.year,
jphbergeson 2:146625d6992d 86 nmea.latitude, nmea.latitude_minutes, nmea.latitude_direction,
jphbergeson 2:146625d6992d 87 nmea.longitude, nmea.longitude_minutes, nmea.longitude_direction, lock_str);
jphbergeson 2:146625d6992d 88
jphbergeson 2:146625d6992d 89 // print to pc, sd card
jphbergeson 2:146625d6992d 90 pc.printf("%s", status_str);
jphbergeson 2:146625d6992d 91
jphbergeson 2:146625d6992d 92 fpData = fopen(OUTPUT_FILE, "a");
jphbergeson 2:146625d6992d 93 fprintf(fpData, "%s", status_str);
jphbergeson 2:146625d6992d 94 fclose(fpData);
jphbergeson 2:146625d6992d 95 }
jphbergeson 2:146625d6992d 96
jphbergeson 0:26713d1db198 97 int main()
jphbergeson 0:26713d1db198 98 {
jphbergeson 0:26713d1db198 99 pc.baud(115200); // make sure to set computer TERA Term or whatever to 115200 baud!!!
jphbergeson 0:26713d1db198 100 duino.baud(9600);
jphbergeson 0:26713d1db198 101 pc.printf("Initializing ...\r\n");
jphbergeson 2:146625d6992d 102
jphbergeson 1:5fa445bd14a6 103 fifo_cs = 1;
jphbergeson 1:5fa445bd14a6 104 trigger = 0;
jphbergeson 1:5fa445bd14a6 105 wait(0.5f);
jphbergeson 2:146625d6992d 106
jphbergeson 2:146625d6992d 107
jphbergeson 0:26713d1db198 108 while (true) {
jphbergeson 2:146625d6992d 109
jphbergeson 0:26713d1db198 110 led = !led;
jphbergeson 2:146625d6992d 111
jphbergeson 2:146625d6992d 112 gps_read();
jphbergeson 2:146625d6992d 113
jphbergeson 1:5fa445bd14a6 114 // Trigger an acquisition from spectrometer
jphbergeson 1:5fa445bd14a6 115 trigger = 1;
jphbergeson 1:5fa445bd14a6 116 wait_ms(1);
jphbergeson 1:5fa445bd14a6 117 trigger = 0;
jphbergeson 1:5fa445bd14a6 118 read_pixels();
jphbergeson 2:146625d6992d 119
jphbergeson 0:26713d1db198 120 wait(0.5f);
jphbergeson 0:26713d1db198 121 }
jphbergeson 0:26713d1db198 122 }