Ciaran O'Malley / Mbed 2 deprecated LAB_2_3_1_Debounce

Lab 2.3.1 Debounce

Dependencies:   mbed C12832

main.cpp@3:8409cacb0beb, 2020-07-30 (annotated)

Committer:
ciaranom
Date:
Thu Jul 30 10:18:27 2020 +0000
Revision:
3:8409cacb0beb
Parent:
2:af2bebc7b6c0 
Added printf above flash

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 2:af2bebc7b6c0 9 Timer debounce;
ciaranom 2:af2bebc7b6c0 10
ciaranom 2:af2bebc7b6c0 11 int x; //sets variable x to 0
ciaranom 2:af2bebc7b6c0 12 //debounce.start(); // start debounce counting
ciaranom 0:0853f795e63b 13
ciaranom 0:0853f795e63b 14
ciaranom 0:0853f795e63b 15
ciaranom 0:0853f795e63b 16
ciaranom 0:0853f795e63b 17 void flip() {
ciaranom 2:af2bebc7b6c0 18 if (debounce.read_ms() >1000) // if deboucne value is greater that 1 second
ciaranom 2:af2bebc7b6c0 19 {
ciaranom 0:0853f795e63b 20 led = !led; // toggles the led when the joystick button is pressed.
ciaranom 1:7149c0779e5b 21 x=1; // sets variable x to 1
ciaranom 2:af2bebc7b6c0 22 // lcd.locate(0,15);
ciaranom 2:af2bebc7b6c0 23 // lcd.printf("DB %.2f", debounce.read());
ciaranom 2:af2bebc7b6c0 24
ciaranom 2:af2bebc7b6c0 25 debounce.reset(); // reset deboucne value
ciaranom 2:af2bebc7b6c0 26 }
ciaranom 0:0853f795e63b 27 }
ciaranom 1:7149c0779e5b 28
ciaranom 1:7149c0779e5b 29 void reset()
ciaranom 1:7149c0779e5b 30 {
ciaranom 1:7149c0779e5b 31 x=0;
ciaranom 1:7149c0779e5b 32 }
ciaranom 1:7149c0779e5b 33
ciaranom 0:0853f795e63b 34 int main() {
ciaranom 1:7149c0779e5b 35
ciaranom 0:0853f795e63b 36 joystickcenter.rise(&flip); // attach the function address to the rising edge
ciaranom 0:0853f795e63b 37 button.mode(PullUp); // With this, no external pullup resistor needed
ciaranom 0:0853f795e63b 38 button.rise(&flip); // attach the function address to the rising edge
ciaranom 0:0853f795e63b 39
ciaranom 1:7149c0779e5b 40
ciaranom 1:7149c0779e5b 41
ciaranom 0:0853f795e63b 42 while(1) { // wait around, interrupts will interrupt this!
ciaranom 1:7149c0779e5b 43
ciaranom 1:7149c0779e5b 44 if (x==1){ //if variable 'x' is equivalent to 0
ciaranom 2:af2bebc7b6c0 45 //lcd.locate(0,0); // Sets location on lcd to 0,0
ciaranom 2:af2bebc7b6c0 46 //lcd.printf("Variable set to 1"); // Prints Variable set if loop parameter is true
ciaranom 2:af2bebc7b6c0 47 wait(1); //waits for 1 seconds, to show print on MBED lcd
ciaranom 2:af2bebc7b6c0 48 //lcd.cls(); //clears lcd screen
ciaranom 1:7149c0779e5b 49 reset();; //resets x to 0
ciaranom 0:0853f795e63b 50 }
ciaranom 0:0853f795e63b 51
ciaranom 3:8409cacb0beb 52 lcd.locate(0,0);
ciaranom 3:8409cacb0beb 53 lcd.printf("DB %.2f", debounce.read())
ciaranom 1:7149c0779e5b 54 flash = !flash; // turns LED4 on if off, off if on
ciaranom 1:7149c0779e5b 55 wait(0.25); // the instruction to wait for a quarter-second
ciaranom 0:0853f795e63b 56 }
ciaranom 1:7149c0779e5b 57 }