Ciaran O'Malley / Mbed 2 deprecated LAB_2_3_interrupt

Cleaner code

Dependencies:   mbed C12832

main.cpp@2:d07750adfe89, 2020-07-31 (annotated)

Committer:
ciaranom
Date:
Fri Jul 31 15:32:53 2020 +0000
Revision:
2:d07750adfe89
Parent:
1:7149c0779e5b 
Lab 2.3

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ciaranom 0:0853f795e63b 1 #include "mbed.h"
ciaranom 0:0853f795e63b 2 #include "C12832.h"
ciaranom 0:0853f795e63b 3
ciaranom 0:0853f795e63b 4 InterruptIn joystickcenter(p14);
ciaranom 0:0853f795e63b 5 InterruptIn button(p9);
ciaranom 0:0853f795e63b 6 DigitalOut led(LED1);
ciaranom 0:0853f795e63b 7 DigitalOut flash(LED4);
ciaranom 0:0853f795e63b 8 C12832 lcd(p5, p7, p6, p8, p11);
ciaranom 0:0853f795e63b 9
ciaranom 0:0853f795e63b 10
ciaranom 1:7149c0779e5b 11 int x=0; //sets variable x to 0
ciaranom 0:0853f795e63b 12
ciaranom 0:0853f795e63b 13
ciaranom 0:0853f795e63b 14 void flip() {
ciaranom 0:0853f795e63b 15 led = !led; // toggles the led when the joystick button is pressed.
ciaranom 1:7149c0779e5b 16 x=1; // sets variable x to 1
ciaranom 0:0853f795e63b 17 }
ciaranom 1:7149c0779e5b 18
ciaranom 2:d07750adfe89 19 void reset() //reset variable to 0
ciaranom 1:7149c0779e5b 20 {
ciaranom 1:7149c0779e5b 21 x=0;
ciaranom 1:7149c0779e5b 22 }
ciaranom 1:7149c0779e5b 23
ciaranom 0:0853f795e63b 24 int main() {
ciaranom 1:7149c0779e5b 25
ciaranom 0:0853f795e63b 26 joystickcenter.rise(&flip); // attach the function address to the rising edge
ciaranom 0:0853f795e63b 27 button.mode(PullUp); // With this, no external pullup resistor needed
ciaranom 0:0853f795e63b 28 button.rise(&flip); // attach the function address to the rising edge
ciaranom 0:0853f795e63b 29
ciaranom 1:7149c0779e5b 30
ciaranom 1:7149c0779e5b 31
ciaranom 0:0853f795e63b 32 while(1) { // wait around, interrupts will interrupt this!
ciaranom 1:7149c0779e5b 33
ciaranom 1:7149c0779e5b 34 if (x==1){ //if variable 'x' is equivalent to 0
ciaranom 1:7149c0779e5b 35 lcd.locate(0,0); // Sets location on lcd to 0,0
ciaranom 1:7149c0779e5b 36 lcd.printf("Variable set to 1"); // Prints Variable set if loop parameter is true
ciaranom 1:7149c0779e5b 37 wait(10); //waits for 10 seconds, to show print on MBED lcd
ciaranom 1:7149c0779e5b 38 lcd.cls(); //clears lcd screen
ciaranom 1:7149c0779e5b 39 reset();; //resets x to 0
ciaranom 0:0853f795e63b 40 }
ciaranom 0:0853f795e63b 41
ciaranom 0:0853f795e63b 42
ciaranom 1:7149c0779e5b 43 flash = !flash; // turns LED4 on if off, off if on
ciaranom 1:7149c0779e5b 44 wait(0.25); // the instruction to wait for a quarter-second
ciaranom 0:0853f795e63b 45 }
ciaranom 1:7149c0779e5b 46 }