Diff: main.cpp

Revision:

2:6c9c8dfe36e6

Parent:

0:44a74c1bc812

Child:

3:36ab439835c7

--- a/main.cpp	Thu Jul 13 14:55:06 2017 +0000
+++ b/main.cpp	Tue Feb 13 11:39:11 2018 +0000
@@ -6,7 +6,8 @@
 //Global objects
 Serial pc(USBTX, USBRX);
 AnalogIn POT_ADC_In(A0);
-DigitalOut led(LED1);
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
 
 //Shared variables
 volatile static unsigned short sample16 = 0;
@@ -20,6 +21,14 @@
     //Set baud rate to 115200
     pc.baud(115200);
 
+    //Power on self test
+    led1 = 1; led2 = 1;
+    pc.printf("TESTING\n\r");
+    wait(1.0);
+    led1 = 1; led2 = 1;
+    pc.printf("DONE\n\r");
+    wait(1.0);
+
     //Set up the ticker - 100Hz
     t.attach(doSample1Hz, 1.0);
 
@@ -28,6 +37,13 @@
         //Sleep
         sleep();
 
+        //READ ADC as an unsigned integer.
+        //Shift right 4 bits (this is a 12bit ADC) & store in static global variable
+        sample16 = POT_ADC_In.read_u16() >> 4;
+        
+        //Hardware debug to verify this is working
+        led2 = !led2;
+        
         //Displauy the sample in HEX
         pc.printf("ADC Value: %X\n", sample16);
  
@@ -35,13 +51,8 @@
 } //end main
 
 //ISR for the ticker - simply there to perform sampling
-void doSample1Hz()
-{
+void doSample1Hz() {
     //Toggle on board led
-    led = !led;
-
-    //READ ADC as an unsigned integer.
-    //Shift right 4 bits (this is a 12bit ADC) & store in static global variable
-    sample16 = POT_ADC_In.read_u16() >> 4;
+    led1 = !led1;
 }