116 lines
2.8 KiB
C
116 lines
2.8 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "ch.h"
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#include "hal.h"
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/*
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* Red LEDs blinker thread, times are in milliseconds.
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*/
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static WORKING_AREA(waThread1, 128);
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static msg_t Thread1(void *arg) {
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(void)arg;
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while (TRUE) {
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palClearPad(IOPORT3, GPIOC_LED);
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chThdSleepMilliseconds(500);
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palSetPad(IOPORT3, GPIOC_LED);
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chThdSleepMilliseconds(500);
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}
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return 0;
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}
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static void pwmpcb(PWMDriver *pwmp) {
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(void)pwmp;
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}
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static void pwmc1cb(PWMDriver *pwmp) {
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(void)pwmp;
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}
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static PWMConfig pwmcfg = {
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pwmpcb,
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{
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{PWM_OUTPUT_ACTIVE_HIGH, pwmc1cb},
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{PWM_OUTPUT_DISABLED, NULL},
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{PWM_OUTPUT_DISABLED, NULL},
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{PWM_OUTPUT_DISABLED, NULL}
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},
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PWM_COMPUTE_PSC(STM32_TIMCLK1, 10000), /* 10KHz PWM clock frequency. */
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PWM_COMPUTE_ARR(10000, 1000000), /* PWM period 1S. */
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0
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};
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/*
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* Application entry point.
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*/
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int main(void) {
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/*
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* System initializations.
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* - HAL initialization, this also initializes the configured device drivers
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* and performs the board-specific initializations.
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* - Kernel initialization, the main() function becomes a thread and the
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* RTOS is active.
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*/
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halInit();
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chSysInit();
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/*
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* Creates the blinker thread.
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*/
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chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
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/*
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* Initializes the PWM driver 1.
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*/
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pwmStart(&PWMD1, &pwmcfg);
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palSetPadMode(IOPORT1, 8, PAL_MODE_STM32_ALTERNATE_PUSHPULL);
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chThdSleepMilliseconds(2000);
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/*
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* Starts the channel 0 using 50% duty cycle.
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*/
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pwmEnableChannel(&PWMD1, 0, PWM_PERCENTAGE_TO_WIDTH(&PWMD1, 5000));
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chThdSleepMilliseconds(5000);
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/*
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* Changes the channel 0 to 75% duty cycle.
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*/
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pwmEnableChannel(&PWMD1, 0, PWM_PERCENTAGE_TO_WIDTH(&PWMD1, 7500));
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chThdSleepMilliseconds(5000);
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/*
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* Disables channel 0.
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*/
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pwmDisableChannel(&PWMD1, 0);
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/*
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* Normal main() thread activity, in this demo it does nothing.
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*/
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while (TRUE) {
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chThdSleepMilliseconds(500);
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}
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return 0;
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}
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