104 lines
2.3 KiB
C
104 lines
2.3 KiB
C
/*
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(C) 2015-2016 flabbergast <s3+flabbergast@sdfeu.org>
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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 "hal.h"
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#define BTN_GPIO TEENSY_PIN2_IOPORT
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#define BTN_PIN TEENSY_PIN2
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/*
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* Jump to bootloader on ARM Teensies.
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*/
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static void jump_to_bootloader(void) {
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/* __asm__ volatile("bkpt"); */
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/* Same as above, CMSIS notation: */
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__BKPT(0);
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}
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/*
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* Blink thread.
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*/
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static THD_WORKING_AREA(waBlinkThread, 128);
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static THD_FUNCTION(BlinkThread, arg) {
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(void)arg;
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uint8_t i;
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// while(TRUE) {
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for(i=0; i<5; i++) {
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palSetPad(TEENSY_PIN13_IOPORT, TEENSY_PIN13);
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chThdSleepMilliseconds(700);
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palClearPad(TEENSY_PIN13_IOPORT, TEENSY_PIN13);
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chThdSleepMilliseconds(700);
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}
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jump_to_bootloader();
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}
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/*
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* Button thread.
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*/
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static THD_WORKING_AREA(waButtonThread, 128);
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static THD_FUNCTION(ButtonThread, arg) {
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(void)arg;
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while(TRUE) {
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if(palReadPad(BTN_GPIO, BTN_PIN) == PAL_LOW) {
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jump_to_bootloader();
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}
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chThdSleepMilliseconds(50);
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}
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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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* Button init.
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*/
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palSetPadMode(BTN_GPIO, BTN_PIN, PAL_MODE_INPUT_PULLUP);
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/*
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* Create the blink thread.
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*/
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chThdCreateStatic(waBlinkThread, sizeof(waBlinkThread), NORMALPRIO, BlinkThread, NULL);
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/*
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* Create the button thread.
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*/
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chThdCreateStatic(waButtonThread, sizeof(waButtonThread), NORMALPRIO, ButtonThread, NULL);
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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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