stephen reidy / Mbed 2 deprecated Lab1_bounce

printing joystick when active

Dependencies:   mbed

main.cpp@3:08df357719f2, 2021-05-04 (annotated)

Committer:
stephensv650
Date:
Tue May 04 12:25:06 2021 +0000
Revision:
3:08df357719f2
Parent:
2:79baf68e700e 
Final

Who changed what in which revision?

UserRevisionLine numberNew contents of line
stephensv650 2:79baf68e700e 1 // A) original code committed (without delays)
stephensv650 2:79baf68e700e 2
stephensv650 2:79baf68e700e 3 // B) Yes, as the micro controller runs through the while loop it checks for active ststments.
stephensv650 2:79baf68e700e 4 // this is done much faster than a person can racct to. also there may be possible bouncing on the switch.
stephensv650 2:79baf68e700e 5
stephensv650 2:79baf68e700e 6 // C) 1. Debounce, 2. capasitor, 3. timer, 4, delay, 5. possible clear screen
stephensv650 2:79baf68e700e 7
stephensv650 2:79baf68e700e 8 // D) See modified code below.
stephensv650 2:79baf68e700e 9
stephensv650 0:56d38c9cd647 10 #include "mbed.h" // Stephen Reidy; lab1
stephensv650 0:56d38c9cd647 11
stephensv650 0:56d38c9cd647 12 InterruptIn joystickDown(p12); // joystick Down
stephensv650 0:56d38c9cd647 13 InterruptIn joystickLeft(p13); // joystick Left
stephensv650 0:56d38c9cd647 14 InterruptIn joystickCenter(p14); // joystick Center
stephensv650 0:56d38c9cd647 15 InterruptIn joystickUp(p15); // joystick Up
stephensv650 0:56d38c9cd647 16 InterruptIn joystickRight(p16); // joystick Right
stephensv650 0:56d38c9cd647 17 DigitalOut led(LED1); // LED 1 digital out
stephensv650 0:56d38c9cd647 18
stephensv650 0:56d38c9cd647 19 int main()
stephensv650 0:56d38c9cd647 20 {
stephensv650 0:56d38c9cd647 21
stephensv650 0:56d38c9cd647 22 while(1) {
stephensv650 0:56d38c9cd647 23 if (joystickDown == 1) {
stephensv650 0:56d38c9cd647 24 printf( "joystickDown is active \r\n");
stephensv650 2:79baf68e700e 25 wait(1);
stephensv650 0:56d38c9cd647 26 }
stephensv650 0:56d38c9cd647 27
stephensv650 0:56d38c9cd647 28 if (joystickLeft == 1) {
stephensv650 0:56d38c9cd647 29 printf( "joystickLeft is active \r\n");
stephensv650 2:79baf68e700e 30 wait(1);
stephensv650 0:56d38c9cd647 31 }
stephensv650 0:56d38c9cd647 32
stephensv650 0:56d38c9cd647 33 if (joystickCenter == 1) {
stephensv650 0:56d38c9cd647 34 printf( "joystickCenter is active \r\n");
stephensv650 3:08df357719f2 35 wait(1);
stephensv650 0:56d38c9cd647 36 }
stephensv650 0:56d38c9cd647 37
stephensv650 0:56d38c9cd647 38 if (joystickUp == 1) {
stephensv650 0:56d38c9cd647 39 printf( "joystickUp is active \r\n");
stephensv650 1:9c6ad6449efd 40 wait(1);
stephensv650 0:56d38c9cd647 41 }
stephensv650 0:56d38c9cd647 42
stephensv650 0:56d38c9cd647 43 if (joystickRight == 1) {
stephensv650 2:79baf68e700e 44 printf( "joystickRight is active \r\n");
stephensv650 2:79baf68e700e 45 wait(1);
stephensv650 0:56d38c9cd647 46 }
stephensv650 0:56d38c9cd647 47 }
stephensv650 0:56d38c9cd647 48 }