95 lines
2.3 KiB
C
95 lines
2.3 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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* GPT2 callback.
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*/
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static void gpt2cb(GPTDriver *gptp) {
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(void)gptp;
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palSetPad(GPIOB, GPIOB_LED4);
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chSysLockFromIsr();
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gptStartOneShotI(&GPTD3, 200); /* 0.02 second pulse.*/
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chSysUnlockFromIsr();
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}
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/*
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* GPT3 callback.
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*/
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static void gpt3cb(GPTDriver *gptp) {
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(void)gptp;
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palClearPad(GPIOB, GPIOB_LED4);
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}
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/*
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* GPT2 configuration.
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*/
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static const GPTConfig gpt2cfg = {
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10000, /* 10KHz timer clock.*/
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gpt2cb /* Timer callback.*/
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};
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/*
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* GPT3 configuration.
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*/
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static const GPTConfig gpt3cfg = {
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10000, /* 10KHz timer clock.*/
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gpt3cb /* Timer callback.*/
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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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* Initializes the GPT drivers 2 and 3.
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*/
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gptStart(&GPTD2, &gpt2cfg);
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gptPolledDelay(&GPTD2, 10); /* Small delay.*/
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gptStart(&GPTD3, &gpt3cfg);
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gptPolledDelay(&GPTD3, 10); /* Small delay.*/
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/*
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* Normal main() thread activity, it changes the GPT1 period every
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* five seconds.
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*/
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while (TRUE) {
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gptStartContinuous(&GPTD2, 5000);
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chThdSleepMilliseconds(5000);
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gptStartContinuous(&GPTD2, 2500);
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chThdSleepMilliseconds(5000);
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}
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}
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