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83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
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/*
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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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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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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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