File content as of revision 0:3e9bf225bd52:

/*!
 * Test application
 *
 * Read signal occupacy on a pin in a non blocking way using timer and interrupt
 *
 * Copyright (c) 2017 -  Alexandre Bouillot github.com/abouillot
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documnetation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to  whom the Software is
 * furished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS OR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
 
 #include "mbed.h"
#include "PwmReader.h"

Timeout timer;
DigitalOut my_pwm(LED1); // IO used by pwm_io function


float delay = 5.0; // 5 sec

int on_delay = 0;
int off_delay = 0;

void toggleOff(void);

void toggleOn(void)
{
    my_pwm = 1;
    timer.attach_us(toggleOff, on_delay);
}

void toggleOff(void)
{
    my_pwm = 0;
    timer.attach_us(toggleOn, off_delay);
}

// p_us = signal period in micro_seconds
// dc   = signal duty-cycle (0.0 to 1.0)
void pwm_io(int p_us, float dc)
{
    timer.detach();
    if ((p_us == 0) || (dc == 0)) {
        my_pwm = 0;
        return;
    }
    if (dc >= 1) {
        my_pwm = 1;
        return;
    }
    on_delay = (int)(p_us * dc);
    off_delay = p_us - on_delay;
    toggleOn();
}



int main()
{
    printf("************ PwmReader test program ****************\n");
    int i, j;
    PwmReader reader(USER_BUTTON);

    while (1) {
        for (i=0; i<=10; i++) {
            for (j=1; j<=10; j++) {
            printf("test with %f %% occupacy ", 0.10 * i);
                printf("test with %ld ms period ", j * 10);

                pwm_io(j * 10000, 0.10 * i); // 2s - 25%

                reader.start();
                wait(delay);
                reader.stop();

                printf("down:%f %% up:%f %%\n", reader.occupacyLow(), reader.occupacyHigh());

            }
        }
    }
}