Priyank Kalgaonkar / Mbed OS TALab3BJoystickECE595

ECE595 - Lab 3 Part 2 - Joystick Program - TA

main.cpp@4:da0f4a1c6416, 2021-01-16 (annotated)

Committer:
priyank12p
Date:
Sat Jan 16 00:30:23 2021 +0000
Revision:
4:da0f4a1c6416
Parent:
3:b7e534ebe607 
Initial Commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
priyank12p 0:4cb6e9d0da34 1 #include "mbed.h"
priyank12p 4:da0f4a1c6416 2 AnalogIn xAxis(A0);
priyank12p 4:da0f4a1c6416 3 AnalogIn yAxis(A1);
priyank12p 4:da0f4a1c6416 4
priyank12p 4:da0f4a1c6416 5 int x,y,button; // global variables to hold values
priyank12p 4:da0f4a1c6416 6 Ticker joystick; // recurring interrupt to get joystick data
priyank12p 1:af23cbc41990 7
priyank12p 4:da0f4a1c6416 8 void joystick_Int_Handler() {
priyank12p 4:da0f4a1c6416 9 x = xAxis.read() * 1000; // float (0->1) to int (0-1000)
priyank12p 4:da0f4a1c6416 10 y = yAxis.read() * 1000;
priyank12p 4:da0f4a1c6416 11 if ( (x > 900) || (y > 900) )
priyank12p 4:da0f4a1c6416 12 button = 1;
priyank12p 4:da0f4a1c6416 13 else
priyank12p 4:da0f4a1c6416 14 button = 0;
priyank12p 4:da0f4a1c6416 15 }
priyank12p 4:da0f4a1c6416 16
priyank12p 4:da0f4a1c6416 17 int main () {
priyank12p 4:da0f4a1c6416 18 //init interrupt, call every .2s
priyank12p 4:da0f4a1c6416 19 joystick.attach(joystick_Int_Handler,0.2);
priyank12p 4:da0f4a1c6416 20
priyank12p 4:da0f4a1c6416 21 // Print out the variables
priyank12p 4:da0f4a1c6416 22 while(1){
priyank12p 4:da0f4a1c6416 23 printf("\rX=%3d, Y=%3d, Button=%d\n",x,y,button);
priyank12p 0:4cb6e9d0da34 24 }
priyank12p 1:af23cbc41990 25 }