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70 lines
1.4 KiB
C
70 lines
1.4 KiB
C
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2017 Intel Corporation.
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*
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* This program and the accompanying materials are made available under the
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* terms of the The MIT License which is available at
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* https://opensource.org/licenses/MIT.
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*
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* SPDX-License-Identifier: MIT
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*/
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#include <unistd.h>
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#include <signal.h>
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#include <upm_utilities.h>
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#include "cjq4435.h"
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int shouldRun = true;
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void sig_handler(int signo)
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{
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if (signo == SIGINT)
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shouldRun = false;
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}
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int main ()
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{
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signal(SIGINT, sig_handler);
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//! [Interesting]
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// Instantiate a CJQ4435 MOSFET on a PWM capable digital pin D3
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cjq4435_context mosfet = cjq4435_init(3);
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if (!mosfet)
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{
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printf("cjq4435_init() failed.\n");
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return 1;
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}
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cjq4435_set_period_ms(mosfet, 10);
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cjq4435_enable(mosfet, true);
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while (shouldRun)
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{
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// start with a duty cycle of 0.0 (off) and increment to 1.0 (on)
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for (float i=0.0; i <= 1.0; i+=0.1)
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{
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cjq4435_set_duty_cycle(mosfet, i);
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upm_delay_ms(100);
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}
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upm_delay(1);
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// Now bring it back down
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// start with a duty cycle of 1.0 (on) and decrement to 0.0 (off)
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for (float i=1.0; i >= 0.0; i-=0.1)
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{
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cjq4435_set_duty_cycle(mosfet, i);
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upm_delay_ms(100);
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}
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upm_delay(1);
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}
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printf("Exiting...\n");
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cjq4435_close(mosfet);
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//! [Interesting]
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return 0;
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}
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