Astrid Vanneste / Mbed OS PGO6_VoteController

PGO6_VoteController (Astrid Vanneste)

Dependencies:   MQTT

Fork of PGO6_VoteController_template by Jens de hoog

debounce_button.cpp@2:5b7d055dbc91, 2017-10-31 (annotated)

Committer:
jensdehoog
Date:
Tue Oct 31 09:01:56 2017 +0000
Revision:
2:5b7d055dbc91
Parent:
1:34e76c0cbe5a
Child:
3:376ac6744373
Reverted to the original assignment, which was made for a duration time of 4 hours

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jensdehoog 0:fd29cd85e75e 1 #include "debounce_button.h"
jensdehoog 0:fd29cd85e75e 2
jensdehoog 0:fd29cd85e75e 3 /**
jensdehoog 0:fd29cd85e75e 4 Some tips and tricks:
jensdehoog 0:fd29cd85e75e 5 - To use the built-in LED:
jensdehoog 0:fd29cd85e75e 6 DigitalOut led1(LED1);
jensdehoog 0:fd29cd85e75e 7 ...
jensdehoog 0:fd29cd85e75e 8 led1 = 1;
jensdehoog 0:fd29cd85e75e 9 - To delay the call of a function:
jensdehoog 0:fd29cd85e75e 10 Timeout someTimeout;
jensdehoog 0:fd29cd85e75e 11 ...
jensdehoog 2:5b7d055dbc91 12 someTimeout.attach(callback(&someFunction), 0.5) with 0.5 as 500 milliseconds
jensdehoog 0:fd29cd85e75e 13 - The variables that are used in interrupt callbacks have to be volatile,
jensdehoog 0:fd29cd85e75e 14 because these variables can change at any time. Therefore, the compiler is not
jensdehoog 0:fd29cd85e75e 15 going to make optimisations.
jensdehoog 0:fd29cd85e75e 16 */
jensdehoog 0:fd29cd85e75e 17
jensdehoog 0:fd29cd85e75e 18 /**
jensdehoog 2:5b7d055dbc91 19 TODO
jensdehoog 2:5b7d055dbc91 20 ----
jensdehoog 2:5b7d055dbc91 21 This function:
jensdehoog 2:5b7d055dbc91 22 - stores the amount of clicks in a variable which is read by the main loop.
jensdehoog 2:5b7d055dbc91 23 - resets the click counter which is used inside this file.
jensdehoog 2:5b7d055dbc91 24 - lowers a flag which tells the main loop that the user stopped pressing the button
jensdehoog 2:5b7d055dbc91 25 such that it can proceed its program.
jensdehoog 2:5b7d055dbc91 26 - turns the built-in LED off. Therefore, the user gets informed that the program stopped counting the clicks.
jensdehoog 2:5b7d055dbc91 27 */
jensdehoog 2:5b7d055dbc91 28 void button1_multiclick_reset_cb(void) {
jensdehoog 2:5b7d055dbc91 29
jensdehoog 2:5b7d055dbc91 30 }
jensdehoog 2:5b7d055dbc91 31
jensdehoog 2:5b7d055dbc91 32 /**
jensdehoog 2:5b7d055dbc91 33 TODO
jensdehoog 2:5b7d055dbc91 34 ----
jensdehoog 2:5b7d055dbc91 35 This function enables the button again, such that unwanted clicks of the bouncing button get ignored.
jensdehoog 0:fd29cd85e75e 36 */
jensdehoog 2:5b7d055dbc91 37 void button1_enabled_cb(void)
jensdehoog 2:5b7d055dbc91 38 {
jensdehoog 2:5b7d055dbc91 39
jensdehoog 2:5b7d055dbc91 40 }
jensdehoog 0:fd29cd85e75e 41
jensdehoog 2:5b7d055dbc91 42 /**
jensdehoog 2:5b7d055dbc91 43 TODO
jensdehoog 2:5b7d055dbc91 44 ----
jensdehoog 2:5b7d055dbc91 45 This function:
jensdehoog 2:5b7d055dbc91 46 - turns the built-in LED on, so the user gets informed that the program has started with counting clicks
jensdehoog 2:5b7d055dbc91 47 - disables the button such that the debouncer is active
jensdehoog 2:5b7d055dbc91 48 - enables the button again after a certain amount of time
jensdehoog 2:5b7d055dbc91 49 (use interrupts with "button1_enabled_cb()" as callback.
jensdehoog 2:5b7d055dbc91 50 - counts the amount of clicks within a period of 1 second
jensdehoog 2:5b7d055dbc91 51 - informs the main loop that the button has been pressed
jensdehoog 2:5b7d055dbc91 52 - informs the main loop that the user is clicking the button.
jensdehoog 2:5b7d055dbc91 53 Therefore, this main loop cannot continue its procedure until the clicks within 1 second have been counted.
jensdehoog 2:5b7d055dbc91 54 */
jensdehoog 0:fd29cd85e75e 55 void button1_onpressed_cb(void)
jensdehoog 0:fd29cd85e75e 56 {
jensdehoog 0:fd29cd85e75e 57
jensdehoog 0:fd29cd85e75e 58 }