Diff: Glider.cpp

Revision:

3:d8932a3036a8

Parent:

2:cc07e65227ff

Child:

4:ff59603d9fb6

--- a/Glider.cpp	Wed Apr 12 22:22:38 2017 +0000
+++ b/Glider.cpp	Thu Apr 13 01:58:17 2017 +0000
@@ -1,11 +1,10 @@
 #include "Glider.h"
 
 Glider::Glider(Serial* device, PinName sda, PinName scl, PinName tx, PinName rx) : xbeeRxInt(rx) {
-    
     dev = device;
-    //readTime();
+    dev->printf("constructing glider...");
+    readTime();
     xbee = new Serial(tx, rx);
-    dev->printf("constructing glider...");
     heading = 0.0;
     pressure = 0.0;
     temp = 0.0;
@@ -14,7 +13,7 @@
     hmc = new HMC5883L(sda, scl);
     bmp = new BMP180(sda, scl);
     bmp->Initialize(1013.25, BMP180_OSS_ULTRA_LOW_POWER);
-    xbeeRxInt.rise(this, &Glider::setCommand);
+    xbeeRxInt.rise(this, &Glider::setCommandFlag);
 }
 
 void Glider::setHeading() {
@@ -26,6 +25,7 @@
 }
 
 void Glider::setMissionTime() {
+    this->dev->printf("current time: %d\r\n", this->missionTime);
     this->missionTime = time(NULL) - this->startTime;
 }
 
@@ -37,23 +37,26 @@
 
 void Glider::readTime() {
      this->dev->printf("getting the time...\r\n");
-     FILE *fp = fopen("/telem/data.txt", "r");   
+     FILE *fp = fopen("/telem/data.txt", "r");   //attempt to read the saved data
      
-     if (fp == NULL) {
-        this->startTime = time(NULL); 
-        FILE *fp1 = fopen("/telem/data.txt", "w");
+     if (fp == NULL) {  //file does not exist
+        this->dev->printf("starting the time...\r\n");
+        this->startTime = time(NULL); //initialize the start time to now
+        FILE *fp1 = fopen("/telem/data.txt", "w");  //create the data file
+        fprintf(fp1, "%d", this->startTime);  //save the start time
         fclose(fp1);
         return;   
      }
-     this->dev->printf("getting the time...\r\n");
-     fscanf(fp, "%d", this->startTime);
+     
+     fscanf(fp, "%d", &this->startTime);
      this->dev->printf("start time: %d\r\n", this->startTime);
      rewind(fp);
      fclose(fp);
 }
 
-void Glider::saveData() {
+void Glider::saveData() { //bad
      FILE *fp = fopen("/telem/data.txt", "w");
+     this->dev->printf("saving time: %d\r\n", this->missionTime);
      fprintf(fp, "%d", this->missionTime);
      fclose(fp);   
 }
@@ -64,14 +67,21 @@
     xbee->printf("3387, GLIDER, %f, %d\r\n", this->heading, this->missionTime);
 }
 
-void Glider::setCommand() {
+void Glider::setCommandFlag() {
     this->comm = true;   
 }
 
 void Glider::processCommand() {
     if (this->comm) {  //command recieved
         char command = this->xbee->getc();
-        this->xbee->printf("you sent: %c\r\n", command);
+        
+        switch (command) {
+            case BUZZER:
+                  this->dev->printf("buzzing...\r\n");
+                  while(1);
+                  break; 
+        }
+        
         this->comm = false;
     }  
 }