96 lines
2.1 KiB
C
96 lines
2.1 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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* GPT1 callback.
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*/
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static void gpt1cb(GPTDriver *gptp) {
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(void)gptp;
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palClearPad(IOPORT3, GPIOC_LED);
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chSysLockFromIsr();
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gptStartOneShotI(&GPTD2, 200); /* 0.02 second pulse.*/
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chSysUnlockFromIsr();
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}
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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(IOPORT3, GPIOC_LED);
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}
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/*
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* GPT1 configuration.
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*/
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static const GPTConfig gpt1cfg = {
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10000, /* 10kHz timer clock.*/
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gpt1cb, /* Timer callback.*/
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0
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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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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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* Initializes the GPT drivers 1 and 2.
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*/
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gptStart(&GPTD1, &gpt1cfg);
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gptPolledDelay(&GPTD1, 10); /* Small delay.*/
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gptStart(&GPTD2, &gpt2cfg);
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gptPolledDelay(&GPTD2, 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(&GPTD1, 5000);
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chThdSleepMilliseconds(5000);
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gptStopTimer(&GPTD1);
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gptStartContinuous(&GPTD1, 2500);
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chThdSleepMilliseconds(5000);
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gptStopTimer(&GPTD1);
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}
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return 0;
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}
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