Reinout nvt / Mbed OS PGO6_VoteController_template

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Dependencies:   MQTT

Fork of PGO6_VoteController_template by Jens de hoog

debounce_button.cpp@0:fd29cd85e75e, 2017-10-26 (annotated)

Committer:
jensdehoog
Date:
Thu Oct 26 07:33:07 2017 +0000
Revision:
0:fd29cd85e75e
Child:
1:e7a311bd038e
Added the template for the assignment of the Vote Controller

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 0:fd29cd85e75e 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 0:fd29cd85e75e 19 TODO
jensdehoog 0:fd29cd85e75e 20 ----
jensdehoog 0:fd29cd85e75e 21 This function:
jensdehoog 0:fd29cd85e75e 22 - stores the amount of clicks in a variable which is read by the main loop.
jensdehoog 0:fd29cd85e75e 23 - resets the click counter which is used inside this file.
jensdehoog 0:fd29cd85e75e 24 - lowers a flag which tells the main loop that the user stopped pressing the button
jensdehoog 0:fd29cd85e75e 25 such that it can proceed its program.
jensdehoog 0:fd29cd85e75e 26 - turns the built-in LED off. Therefore, the user gets informed that the program stopped counting the clicks.
jensdehoog 0:fd29cd85e75e 27 */
jensdehoog 0:fd29cd85e75e 28 void button1_multiclick_reset_cb(void) {
jensdehoog 0:fd29cd85e75e 29
jensdehoog 0:fd29cd85e75e 30 }
jensdehoog 0:fd29cd85e75e 31
jensdehoog 0:fd29cd85e75e 32 /**
jensdehoog 0:fd29cd85e75e 33 TODO
jensdehoog 0:fd29cd85e75e 34 ----
jensdehoog 0:fd29cd85e75e 35 This function enables the button again, such that unwanted clicks of the bouncing button get ignored.
jensdehoog 0:fd29cd85e75e 36 */
jensdehoog 0:fd29cd85e75e 37 void button1_enabled_cb(void)
jensdehoog 0:fd29cd85e75e 38 {
jensdehoog 0:fd29cd85e75e 39
jensdehoog 0:fd29cd85e75e 40 }
jensdehoog 0:fd29cd85e75e 41
jensdehoog 0:fd29cd85e75e 42 /**
jensdehoog 0:fd29cd85e75e 43 TODO
jensdehoog 0:fd29cd85e75e 44 ----
jensdehoog 0:fd29cd85e75e 45 This function:
jensdehoog 0:fd29cd85e75e 46 - turns the built-in LED on, so the user gets informed that the program has started with counting clicks
jensdehoog 0:fd29cd85e75e 47 - disables the button such that the debouncer is active
jensdehoog 0:fd29cd85e75e 48 - enables the button again after a certain amount of time
jensdehoog 0:fd29cd85e75e 49 (use interrupts with "button1_enabled_cb()" as callback.
jensdehoog 0:fd29cd85e75e 50 - counts the amount of clicks within a period of 1 second
jensdehoog 0:fd29cd85e75e 51 - informs the main loop that the button has been pressed
jensdehoog 0:fd29cd85e75e 52 - informs the main loop that the user is clicking the button.
jensdehoog 0:fd29cd85e75e 53 Therefore, this main loop cannot continue its procedure until the clicks within 1 second have been counted.
jensdehoog 0:fd29cd85e75e 54 */
jensdehoog 0:fd29cd85e75e 55 void button1_onpressed_cb(void)
jensdehoog 0:fd29cd85e75e 56 {
jensdehoog 0:fd29cd85e75e 57
jensdehoog 0:fd29cd85e75e 58 }