95 lines
2.3 KiB
C
95 lines
2.3 KiB
C
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/*
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ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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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(GPIOD, GPIOD_LED5);
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chSysLockFromIsr();
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gptStartOneShotI(&GPTD3, 1000); /* 0.1 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(GPIOD, GPIOD_LED5);
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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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palSetPad(GPIOD, GPIOD_LED4);
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gptStartContinuous(&GPTD2, 5000);
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chThdSleepMilliseconds(5000);
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gptStopTimer(&GPTD2);
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palClearPad(GPIOD, GPIOD_LED4);
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gptStartContinuous(&GPTD2, 2500);
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chThdSleepMilliseconds(5000);
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gptStopTimer(&GPTD2);
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}
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}
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