/* * Author: Jon Trulson * Copyright (c) 2017 Intel Corporation. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation 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 furnished 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 FOR 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 #include #include #include "cjq4435.h" int shouldRun = true; void sig_handler(int signo) { if (signo == SIGINT) shouldRun = false; } int main () { signal(SIGINT, sig_handler); //! [Interesting] // Instantiate a CJQ4435 MOSFET on a PWM capable digital pin D3 cjq4435_context mosfet = cjq4435_init(3); if (!mosfet) { printf("cjq4435_init() failed.\n"); return 1; } cjq4435_set_period_ms(mosfet, 10); cjq4435_enable(mosfet, true); while (shouldRun) { // start with a duty cycle of 0.0 (off) and increment to 1.0 (on) for (float i=0.0; i <= 1.0; i+=0.1) { cjq4435_set_duty_cycle(mosfet, i); upm_delay_ms(100); } upm_delay(1); // Now bring it back down // start with a duty cycle of 1.0 (on) and decrement to 0.0 (off) for (float i=1.0; i >= 0.0; i-=0.1) { cjq4435_set_duty_cycle(mosfet, i); upm_delay_ms(100); } upm_delay(1); } printf("Exiting...\n"); cjq4435_close(mosfet); //! [Interesting] return 0; }