Steffen Wehner / Mbed 2 deprecated Button_input_ext_interrupt

a program with changes the between two states with the press of a button

Dependencies:   mbed

main.cpp@0:26da192b707b, 2015-11-03 (annotated)

Committer:
wehner334
Date:
Tue Nov 03 12:25:44 2015 +0000
Revision:
0:26da192b707b
Child:
1:a070f8a0bf04
intial build not jet tested

Who changed what in which revision?

UserRevisionLine numberNew contents of line
wehner334 0:26da192b707b 1 #include "mbed.h"
wehner334 0:26da192b707b 2
wehner334 0:26da192b707b 3 InterruptIn mybutton(USER_BUTTON);//generates an object named mybutton out of the class InterruptIn
wehner334 0:26da192b707b 4 DigitalOut myled(LED1); //
wehner334 0:26da192b707b 5
wehner334 0:26da192b707b 6 volatile float delay = 1.0; // 1 sec of delay in the delay
wehner334 0:26da192b707b 7 volatile bool Pressedornot=false; // global variable with is updated by the interrupt function
wehner334 0:26da192b707b 8
wehner334 0:26da192b707b 9 /*function pressed() is called than a interrupt is generated by the external interrupt when the userbutton is pressed
wehner334 0:26da192b707b 10 it alters the Pressedornot variable from true to false
wehner334 0:26da192b707b 11 */
wehner334 0:26da192b707b 12 void pressed()
wehner334 0:26da192b707b 13 {
wehner334 0:26da192b707b 14 if (Pressedornot==false)
wehner334 0:26da192b707b 15 Pressedornot=true;
wehner334 0:26da192b707b 16 else
wehner334 0:26da192b707b 17 Pressedornot=false;
wehner334 0:26da192b707b 18 }
wehner334 0:26da192b707b 19
wehner334 0:26da192b707b 20 int main()
wehner334 0:26da192b707b 21 {
wehner334 0:26da192b707b 22 mybutton.fall(&pressed);//activates the interrupt then a falling edge is detected on the pin
wehner334 0:26da192b707b 23 while (1) {
wehner334 0:26da192b707b 24 if(Pressedornot==false)
wehner334 0:26da192b707b 25 {myled = !myled;
wehner334 0:26da192b707b 26 wait(delay);
wehner334 0:26da192b707b 27 }
wehner334 0:26da192b707b 28 else
wehner334 0:26da192b707b 29 {myled=true;
wehner334 0:26da192b707b 30 }
wehner334 0:26da192b707b 31
wehner334 0:26da192b707b 32 }
wehner334 0:26da192b707b 33 }