Diff: main.cpp

Revision:

28:707dc153dfad

Parent:

27:0cf170538518

diff -r 0cf170538518 -r 707dc153dfad main.cpp
--- a/main.cpp	Thu Dec 06 20:28:08 2018 +0000
+++ b/main.cpp	Thu Dec 06 22:09:12 2018 +0000
@@ -20,7 +20,7 @@
 // File systems
 #include "LittleFileSystem.h"
 #include "FATFileSystem.h"
-#include "stm32l475e_iot01_accelero.h"
+#include "stm32l475e_iot01_tsensor.h"
 
 // Physical block device, can be any device that supports the BlockDevice API
 /*SPIFBlockDevice bd(
@@ -28,11 +28,9 @@
         MBED_CONF_SPIF_DRIVER_SPI_MISO,
         MBED_CONF_SPIF_DRIVER_SPI_CLK,
         MBED_CONF_SPIF_DRIVER_SPI_CS);*/
-
-DigitalOut led_1(LED1);
-DigitalOut led_2(LED2);
-DigitalOut led_3(LED3);
-Ticker check_led_status;
+        
+InterruptIn button(USER_BUTTON);
+Ticker start_read_temp;
 
 EventQueue queue(32 * EVENTS_EVENT_SIZE);
 Thread t;
@@ -40,150 +38,51 @@
 #define BLOCK_SIZE 512
 HeapBlockDevice bd(32768, BLOCK_SIZE);
 
-#define LED_1_VALUE 1
-#define LED_2_VALUE 2
-#define LED_3_VALUE 3
-
 // File system declaration
 LittleFileSystem fs("fs");
 
-// Set up the button to trigger an erase
-InterruptIn irq(BUTTON1);
-void erase() {
-    printf("Initializing the block device... ");
-    fflush(stdout);
-    int err = bd.init();
-    printf("%s\n", (err ? "Fail :(" : "OK"));
-    if (err) {
-        error("error: %s (%d)\n", strerror(-err), err);
-    }
-
-    printf("Erasing the block device... ");
-    fflush(stdout);
-    err = bd.erase(0, bd.size());
-    printf("%s\n", (err ? "Fail :(" : "OK"));
-    if (err) {
-        error("error: %s (%d)\n", strerror(-err), err);
-    }
-
-    printf("Deinitializing the block device... ");
-    fflush(stdout);
-    err = bd.deinit();
-    printf("%s\n", (err ? "Fail :(" : "OK"));
-    if (err) {
-        error("error: %s (%d)\n", strerror(-err), err);
-    }
-}
-
 static FILE *f;
 volatile int counter = 0;
 
-void read_acc() {
-    int16_t pDataXYZ[3] = {0};
-    BSP_ACCELERO_AccGetXYZ(pDataXYZ);
-    if (abs(pDataXYZ[2]) > 900) { // board laying down
-            fprintf(f, "%d\n", LED_1_VALUE);
-        } else if (abs(pDataXYZ[1]) > 900) { // long side
-            fprintf(f, "%d\n", LED_2_VALUE);
-        } else if (abs(pDataXYZ[0]) > 900) { // short side
-             fprintf(f, "%d\n", LED_3_VALUE);
-        } else { // all other positions
-             fprintf(f, "%d\n", -1);
-        }
-        
+void read_temp() {
+    float sensor_value = 0;
+    sensor_value = BSP_TSENSOR_ReadTemp();
+    fprintf(f, "%f\n", sensor_value);
     fflush(f);
     fflush(stdout);
+    printf("Reading Temp...\n");
+}
+
+void print_data_from_file() {
+    fflush(stdout);
+    fflush(f);
+    fseek(f, 0, SEEK_SET);
+    float value;
+    while (!feof(f)) {
+        fscanf(f, "%f", &value); 
+        printf("%f\n", value);
+    }
+    fflush(stdout);
 }
 
-void read_data_from_file() {
-      int led1_counter = 0;
-      int led2_counter = 0;
-      int led3_counter = 0;
-      fflush(stdout);
-      fflush(f);
-      
-      // read file and count occurrences of position numbers
-      fseek(f, 0, SEEK_SET);
-      int number;
-      while (!feof(f)) {
-        fscanf(f, "%d", &number);
-        
-        switch (number){
-        case LED_1_VALUE:
-            led1_counter += 1;
-            break;
-        case LED_2_VALUE:
-            led2_counter += 1;
-            break;
-        case LED_3_VALUE:
-            led3_counter += 1;
-            break;
-        default:
-            break; 
-        }
-      }
-      
-      // check which position is the one present the most
-      if (led1_counter > led2_counter && led1_counter > led3_counter) {
-            led_1 = 1;
-            led_2 = 0;
-            led_3 = 0;
-        } else if (led2_counter > led1_counter && led2_counter > led3_counter ) {
-            led_1 = 0;
-            led_2 = 1;
-            led_3 = 0;
-        } else if (led3_counter > led1_counter && led3_counter > led2_counter) {
-            led_1 = 0;
-            led_2 = 0;
-            led_3 = 1;
-        }
-      
-      fflush(stdout);
-      int err = fclose(f);
-      printf("%s\n", (err < 0 ? "Fail :(" : "OK"));
-      if (err < 0) {
-        error("error: %s (%d)\n", strerror(err), -err);
-      }
-      err = fs.unmount();
-      printf("%s\n", (err < 0 ? "Fail :(" : "OK"));
-      if (err < 0) {
-          error("error: %s (%d)\n", strerror(-err), err);
-      }
-        
-      if (led_1){  
-        printf("Lighting up corresponding LED 1!\n");
-      } else if (led_2){
-        printf("Lighting up corresponding LED 2!\n");
-      } else if (led_3){
-        printf("Lighting up corresponding LED 3!\n");
-      } else {
-        printf("No valid position detected during the sampling time, no LED lighting up!\n");
-      }
-    
+// needed since we can't have a file open in an interrupt
+void button_rising() {
+    queue.call(print_data_from_file);
 }
 
-void toggle_led() {
-    queue.call(read_acc);
-    counter++;
-    if (counter == 100*10) {
-      check_led_status.detach();
-      queue.call(read_data_from_file);
-    }
-      
+// needed since we can't have a file open in an interrupt
+void read_temp_call() {
+    queue.call(read_temp);
 }
 
-// Entry point for the example
+// Entry point
 int main() {
     t.start(callback(&queue, &EventQueue::dispatch_forever));
-    BSP_ACCELERO_Init();
-    
+    BSP_TSENSOR_Init();
+    button.rise(&button_rising);
     
     printf("--- Mbed OS filesystem example ---\n");
 
-    // Setup the erase event on button press, use the event queue
-    // to avoid running in interrupt context
-    irq.fall(mbed_event_queue()->event(erase));
-
     // Try to mount the filesystem
     printf("Mounting the filesystem... ");
     fflush(stdout);
@@ -206,6 +105,7 @@
     fflush(stdout);
     f = fopen("/fs/numbers.txt", "r +");
     printf("%s\n", (!f ? "Fail :(" : "OK"));
+    
     if (!f) {
         // Create the numbers file if it doesn't exist
         printf("No file found, creating a new file... ");
@@ -225,5 +125,6 @@
         }
     }
     
-    check_led_status.attach(&toggle_led, 0.01);
+    start_read_temp.attach(&read_temp_call, 60);
+
 }
\ No newline at end of file