Diff: main.cpp

Revision:

4:f2c84efa572d

Parent:

3:05b6a1431a6b

--- a/main.cpp	Tue Jan 16 18:14:21 2018 +0000
+++ b/main.cpp	Thu Feb 01 16:42:49 2018 +0000
@@ -2,35 +2,85 @@
 
 // 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 button_blue(PTD0);
+DigitalOut led_blue(LED_BLUE);
 
-volatile int pressEvent = 0 ;
+InterruptIn button_red(PTD4);
+DigitalOut led_red(LED_RED);
+
+volatile int pressEvent_blue = 0;
+volatile int pressEvent_red = 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 buttonCallback_blue()
+{
+    pressEvent_blue = 1 ;
+}
+void buttonCallback_red()
+{
+    pressEvent_red = 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
+int main()
+{
+    led_blue = 0;
+    led_red = 0;
+    
+    button_blue.mode(PullUp);             // Ensure button i/p has pull up
+    button_blue.fall(&buttonCallback_blue) ;   // Attach function to falling edge
+
+    button_red.mode(PullUp);
+    button_red.fall(&buttonCallback_red);
+
+    // active mode of each LED
+    int active_blue = 1;
+    int active_red = 1;
+
+    // cycle counter of each LED
+    int cycle_blue = 1;
+    int cycle_red = 1;
 
     while(true) {
-        // Toggle the LED every time the button is pressed
-        if (pressEvent) {
-            led = !led ;
-            pressEvent = 0 ; // Clear the event variable
+        // blue led
+        if (pressEvent_blue) {
+            active_blue = !active_blue;
+            pressEvent_blue = 0 ; // Clear the event variable
+            cycle_blue = 1;
+        }
+        if(active_blue) {
+            if(cycle_blue == 5) {
+                led_blue = !led_blue ;
+                cycle_blue = 1;
+            } else {
+                cycle_blue = cycle_blue+1;
+            }
         }
+
+        // red led
+        if (pressEvent_red) {
+            active_red = !active_red;
+            pressEvent_red = 0 ; // Clear the event variable
+            cycle_red = 1;
+        }
+        if(active_red) {
+            if(cycle_red == 5) {
+                led_red = !led_red ;
+                cycle_red = 1;
+            } else {
+                cycle_red = cycle_red+1;
+            }
+        }
+
         Thread::wait(100) ;
     }
 }
\ No newline at end of file