button trigger interrupt

Dependencies:   mbed

Revision:
0:912303e63cbd
Child:
1:19e910fda737
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Feb 21 12:53:03 2014 +0000
@@ -0,0 +1,23 @@
+#include "mbed.h"
+ 
+InterruptIn mybutton(USER_BUTTON);
+DigitalOut myled(LED1);
+ 
+float delay = 1.0; // 1 sec
+ 
+void pressed()
+{
+    if (delay == 1.0)
+        delay = 0.2; // 200 ms
+    else
+        delay = 1.0; // 1 sec
+}
+ 
+int main()
+{
+    mybutton.fall(&pressed);
+    while (1) {
+        myled = !myled;
+        wait(delay);
+    }
+}