Rob Toulson / Mbed 2 deprecated PE_09-12_EventDrivenLED

by Rob Toulson and Tim Wilmshurst from textbook "Fast and Effective Embedded Systems Design: Applying the ARM mbed"

Dependencies:   mbed

main.cpp

Committer:
robt
Date:
2013-05-24
Revision:
0:573e9069e2ea

File content as of revision 0:573e9069e2ea:

/* 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
}