Revision 4:4caae521ff66, committed 2018-02-02

Comitter:

dhenis

Date:

Fri Feb 02 21:44:55 2018 +0000

Parent:

3:05b6a1431a6b

Commit message:

Interupt Assessed

Changed in this revision

--- a/main.cpp	Tue Jan 16 18:14:21 2018 +0000
+++ b/main.cpp	Fri Feb 02 21:44:55 2018 +0000
@@ -2,35 +2,108 @@
 
 // Labs 2: Example program for using an interrupt (or callback)
 // -----------------------------------------------------------
-// A callback function (corresponding to an ISR) is called when a button 
+// A callback function (corresponding to an ISR) is called when a button
 //    is pressed
 // The callback uses a shared variable to signal another thread
 
 InterruptIn button(PTD0);
-DigitalOut led(LED_GREEN);
+
+InterruptIn button2(PTD2);
+DigitalOut led1(LED_RED);
+DigitalOut led2(LED_BLUE);
 
-volatile int pressEvent = 0 ;
+
+volatile int pressEvent1 = 0 ;
+
+volatile int pressEvent2 = 0 ;
 
 // This function is invoked when then interrupt occurs
 //   Signal that the button has been pressed
-//   Note: bounce may occur 
-void buttonCallback(){
-    pressEvent = 1 ;
+//   Note: bounce may occur
+void buttonCallback1(){
+
+
+    pressEvent1 = 1 ;
+
+
 }
+void buttonCallback2(){
+   
+    pressEvent2 = 1 ;
 
+
+}
 /*  ---- Main function (default thread) ----
     Note that if this thread completes, nothing else works
  */
 int main() {
     button.mode(PullUp);             // Ensure button i/p has pull up
-    button.fall(&buttonCallback) ;   // Attach function to falling edge
+    button.fall(&buttonCallback1) ;   // Attach function to falling edge
+
+
+    button2.mode(PullUp);             // Ensure button i/p has pull up
+    button2.fall(&buttonCallback2) ;   // Attach function to falling edge
+
+    bool flash1 = true;
+
+    bool flash2 = true;
+
+
+//    bool cycle = false; //
+    
+
+    bool check_flash1 = true; // check flash one ==> make flash 1 only change once in each cycle
+    
+    bool check_flash2 = true; // check flash one ==> make flash 1 only change once in each cycle
 
     while(true) {
+  
+          
         // Toggle the LED every time the button is pressed
-        if (pressEvent) {
-            led = !led ;
-            pressEvent = 0 ; // Clear the event variable
+        if (pressEvent1 and check_flash1) {
+
+           // led1 = 1 ; //eend turn off light as default
+            flash1 = !flash1 ;
+
+            pressEvent1 = 0 ; // Clear the event variable
+
+            // dealing with bounce
+            check_flash1 = false;
+
+        }
+
+        // Toggle the LED every time the button is pressed
+        if (pressEvent2 and check_flash2) {
+
+            //led2 = 1 ; //eend turn off light as default
+            flash2 = !flash2 ;
+
+            pressEvent2 = 0 ; // Clear the event variable
+
+            // dealing with bounce
+            check_flash2 = false;
         }
-        Thread::wait(100) ;
+
+
+        if(flash1){ 
+            
+            led1 = !led1 ;
+
+        }
+
+        if(flash2){
+
+            led2 = !led2 ;
+        }
+      
+        
+        Thread::wait(500) ; // 2x?
+        
+        // every cycle, just make  1 instruction
+        
+        check_flash1 = true;
+        
+        check_flash2 = true;
+
     }
-}
\ No newline at end of file
+}