Bootcamp-debounceBook - debounce based on book

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debounce based on book

main.cpp@0:e111fc0f3ecb, 2014-02-10 (annotated)

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User	Revision	Line number	New contents of line
avnisha	0:e111fc0f3ecb	1	#include "mbed.h"
avnisha	0:e111fc0f3ecb	2
avnisha	0:e111fc0f3ecb	3	/*
avnisha	0:e111fc0f3ecb	4	* Book - 9.10 (page 198)
avnisha	0:e111fc0f3ecb	5	*
avnisha	0:e111fc0f3ecb	6	* Switch debounce based on a simple 50ms wait before next event processed
avnisha	0:e111fc0f3ecb	7	* Note - the wait time DEPENDS on your switch. Experiment !!!
avnisha	0:e111fc0f3ecb	8	*/
avnisha	0:e111fc0f3ecb	9
avnisha	0:e111fc0f3ecb	10	DigitalOut led1(LED1);
avnisha	0:e111fc0f3ecb	11	DigitalOut led2(LED2);
avnisha	0:e111fc0f3ecb	12	InterruptIn button(p12);
avnisha	0:e111fc0f3ecb	13	Timer debounce;
avnisha	0:e111fc0f3ecb	14
avnisha	0:e111fc0f3ecb	15	void rise(void);
avnisha	0:e111fc0f3ecb	16	void fall(void);
avnisha	0:e111fc0f3ecb	17
avnisha	0:e111fc0f3ecb	18	int main() {
avnisha	0:e111fc0f3ecb	19	debounce.start();
avnisha	0:e111fc0f3ecb	20	button.rise(&rise);
avnisha	0:e111fc0f3ecb	21	//button.fall(&fall);
avnisha	0:e111fc0f3ecb	22	}
avnisha	0:e111fc0f3ecb	23
avnisha	0:e111fc0f3ecb	24	void rise() {
avnisha	0:e111fc0f3ecb	25	printf("rise\n");
avnisha	0:e111fc0f3ecb	26	if (debounce.read_ms() > 50) {
avnisha	0:e111fc0f3ecb	27	led1 = !led1;
avnisha	0:e111fc0f3ecb	28	debounce.reset();
avnisha	0:e111fc0f3ecb	29	}
avnisha	0:e111fc0f3ecb	30	}
avnisha	0:e111fc0f3ecb	31
avnisha	0:e111fc0f3ecb	32	void fall() {
avnisha	0:e111fc0f3ecb	33	printf("fall\n");
avnisha	0:e111fc0f3ecb	34	if (debounce.read_ms() > 50) {
avnisha	0:e111fc0f3ecb	35	led2 = !led2;
avnisha	0:e111fc0f3ecb	36	debounce.reset();
avnisha	0:e111fc0f3ecb	37	}
avnisha	0:e111fc0f3ecb	38	}