Diff: main.cpp

Revision:

0:7a3136735404

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri May 24 21:48:44 2013 +0000
@@ -0,0 +1,38 @@
+/*Program Example 9.7: Demonstrates the use of Timeout and interrupts, to allow response to an event-driven task while a time-driven task continues.
+                                                                             */ 
+#include "mbed.h"
+void blink_end (void);      
+void blink (void); 
+void ISR1 (void);
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+Timeout Response;             //create a Timeout, and name it Response
+Timeout Response_duration;    //create a Timeout, and name it Response_duration
+InterruptIn button(p5);       //create an interrupt input, named button
+
+void blink() {           //This function is called when Timeout is complete
+  led2=1;
+  // set the duration of the led blink, with another timeout, duration 0.1 s    
+  Response_duration.attach(&blink_end, 1);
+}
+    
+void blink_end() {            //A function called at the end of Timeout Response_duration
+  led2=0;
+}
+    
+void ISR1(){
+  led3=1;       //shows button is pressed; diagnostic and not central to program
+  //attach blink1 function to Response Timeout, to occur after 2 seconds    
+  Response.attach(&blink, 2.0);
+}
+    
+int main() {
+  button.rise(&ISR1);   //attach the address of ISR1 function to the rising edge
+  while(1) {
+    led3=0;                //clear LED3 
+    led1=!led1;
+    wait(0.2);
+  }
+}
+