Diff: main.cpp

Revision:

0:573e9069e2ea

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri May 24 21:50:05 2013 +0000
@@ -0,0 +1,17 @@
+/* Program Example 9.12: Event driven LED switching with switch debounce
+                                                                       */
+#include "mbed.h"
+InterruptIn button(p18);    // Interrupt on digital pushbutton input p18
+DigitalOut led1(LED1);           // digital out to LED1
+Timer debounce;                  // define debounce timer
+void toggle(void);               // function prototype
+int main() {
+  debounce.start();
+  button.rise(&toggle);          // attach the address of the toggle
+}                                             // function to the rising edge 
+void toggle() {
+if (debounce.read_ms()>10)      // only allow toggle if debounce timer 
+  led1=!led1;                                       // has passed 10 ms
+  debounce.reset();              // restart timer when the toggle is performed
+}
+