CSE477 / swimate_v2

Swimate V2 without RTOS code

Dependencies:   Adafruit_GFX_128x64 DS3231 PinDetect SDFileSystem USBDevice mbed RealtimeMath MODSERIAL

main.cpp@7:33a74adff0ff, 2014-05-17 (annotated)

Committer:
ellingjp
Date:
Sat May 17 01:20:31 2014 +0000
Revision:
7:33a74adff0ff
Parent:
4:b962f5a783a1
Child:
8:8430a5c0914c
Refactor -- introduced bug that causes garbage to be received from mpu

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ellingjp 0:cd1fe4f0ed39 1 #include "main.h"
ellingjp 0:cd1fe4f0ed39 2 #include "mbed.h"
ellingjp 0:cd1fe4f0ed39 3 #include "USBSerial.h"
ellingjp 0:cd1fe4f0ed39 4 #include "Adafruit_SSD1306.h"
ellingjp 0:cd1fe4f0ed39 5 #include "SDFileSystem.h"
ellingjp 7:33a74adff0ff 6 #include "receive_data.h"
ellingjp 7:33a74adff0ff 7 #include "debug.h"
ellingjp 0:cd1fe4f0ed39 8
ellingjp 0:cd1fe4f0ed39 9 // Display
ellingjp 0:cd1fe4f0ed39 10 #ifdef OLED_DEBUG
ellingjp 0:cd1fe4f0ed39 11 SPI spi0(P0_9, NC, P0_10); // mosi, miso, sclk
ellingjp 4:b962f5a783a1 12 Adafruit_SSD1306 oled(spi0, P0_11, P0_12, P0_13); // DC, RST, CS
ellingjp 0:cd1fe4f0ed39 13 #endif
ellingjp 0:cd1fe4f0ed39 14
ellingjp 0:cd1fe4f0ed39 15 // SD Card
ellingjp 0:cd1fe4f0ed39 16 SDFileSystem sd(P0_21, P0_22, P1_15, P1_19, "sd"); // MOSI, MISO, SCLK, SSEL SPI1
ellingjp 0:cd1fe4f0ed39 17
ellingjp 0:cd1fe4f0ed39 18 // Logging vars
ellingjp 0:cd1fe4f0ed39 19 FILE *logFile;
ellingjp 0:cd1fe4f0ed39 20
ellingjp 0:cd1fe4f0ed39 21 // Timer
ellingjp 0:cd1fe4f0ed39 22 Timer totalTime;
ellingjp 0:cd1fe4f0ed39 23 Timer captureTime;
ellingjp 0:cd1fe4f0ed39 24
ellingjp 0:cd1fe4f0ed39 25 // Switch
ellingjp 0:cd1fe4f0ed39 26 InterruptIn captureSwitch(P0_16);
ellingjp 0:cd1fe4f0ed39 27
ellingjp 0:cd1fe4f0ed39 28
ellingjp 0:cd1fe4f0ed39 29 // State
ellingjp 0:cd1fe4f0ed39 30 enum state {IDLE, CAPTURE};
ellingjp 0:cd1fe4f0ed39 31 enum state State;
ellingjp 0:cd1fe4f0ed39 32
ellingjp 0:cd1fe4f0ed39 33 void captureSwitchISR() {
ellingjp 0:cd1fe4f0ed39 34 // used for debouncing
ellingjp 0:cd1fe4f0ed39 35 static int prev_time = 0;
ellingjp 4:b962f5a783a1 36 int curr_time = totalTime.read_ms();
ellingjp 4:b962f5a783a1 37
ellingjp 4:b962f5a783a1 38 // Only change state after an amount of time
ellingjp 4:b962f5a783a1 39 // Note: abs value is necessary in case of
ellingjp 4:b962f5a783a1 40 // overflows
ellingjp 4:b962f5a783a1 41 if (abs(curr_time - prev_time) > 200)
ellingjp 4:b962f5a783a1 42 State = (State == IDLE) ? CAPTURE : IDLE;
ellingjp 0:cd1fe4f0ed39 43
ellingjp 4:b962f5a783a1 44 prev_time = curr_time;
ellingjp 0:cd1fe4f0ed39 45 }
ellingjp 0:cd1fe4f0ed39 46
ellingjp 0:cd1fe4f0ed39 47 int main(void)
ellingjp 0:cd1fe4f0ed39 48 {
ellingjp 0:cd1fe4f0ed39 49 totalTime.start();
ellingjp 0:cd1fe4f0ed39 50
ellingjp 0:cd1fe4f0ed39 51 State = IDLE;
ellingjp 0:cd1fe4f0ed39 52 captureSwitch.mode(PullUp);
ellingjp 0:cd1fe4f0ed39 53 captureSwitch.rise(captureSwitchISR);
ellingjp 0:cd1fe4f0ed39 54
ellingjp 0:cd1fe4f0ed39 55 while (true) {
ellingjp 7:33a74adff0ff 56 if (State == IDLE){
ellingjp 7:33a74adff0ff 57 PC_PRINT("Idling\r");
ellingjp 7:33a74adff0ff 58 } else if (State == CAPTURE) {
ellingjp 7:33a74adff0ff 59 receive_init();
ellingjp 7:33a74adff0ff 60 while (State == CAPTURE) {
ellingjp 7:33a74adff0ff 61 __disable_irq();
ellingjp 7:33a74adff0ff 62 receive_data();
ellingjp 7:33a74adff0ff 63 __enable_irq();
ellingjp 0:cd1fe4f0ed39 64 }
ellingjp 7:33a74adff0ff 65 // data = receive_data();
ellingjp 7:33a74adff0ff 66 // log_data(data);
ellingjp 7:33a74adff0ff 67 // split = get_split(data);
ellingjp 7:33a74adff0ff 68 // display_split;
ellingjp 7:33a74adff0ff 69 }
ellingjp 7:33a74adff0ff 70 // else if (State == SYNC) {
ellingjp 7:33a74adff0ff 71 // begin_sync();
ellingjp 7:33a74adff0ff 72 // }
ellingjp 0:cd1fe4f0ed39 73 }
ellingjp 0:cd1fe4f0ed39 74 }
ellingjp 0:cd1fe4f0ed39 75
ellingjp 0:cd1fe4f0ed39 76
ellingjp 0:cd1fe4f0ed39 77
ellingjp 7:33a74adff0ff 78 /* Returns false on failure, true otherwise */
ellingjp 7:33a74adff0ff 79 //bool log_open() {
ellingjp 7:33a74adff0ff 80 // logFile = fopen(LOG_FILE, "a");
ellingjp 7:33a74adff0ff 81 // if (logFile == NULL) {
ellingjp 7:33a74adff0ff 82 // PC_PRINTLNF("SD card initialization error: Failed to open %s", LOG_FILE);
ellingjp 7:33a74adff0ff 83 // return false;
ellingjp 7:33a74adff0ff 84 // }
ellingjp 7:33a74adff0ff 85 // fprintf(logFile, "---- BEGIN NEW DATASET ----\n");
ellingjp 7:33a74adff0ff 86 // return true;
ellingjp 7:33a74adff0ff 87 //}