From 70a880a4d4e1ba03d71e369e3d9871a8d04f23b3 Mon Sep 17 00:00:00 2001 From: edolomb Date: Tue, 31 Oct 2017 10:24:33 +0000 Subject: TC demo git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@10918 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- testhal/ATSAMA5D2/TC/main.c | 78 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100755 testhal/ATSAMA5D2/TC/main.c (limited to 'testhal/ATSAMA5D2/TC/main.c') diff --git a/testhal/ATSAMA5D2/TC/main.c b/testhal/ATSAMA5D2/TC/main.c new file mode 100755 index 000000000..3751ab12f --- /dev/null +++ b/testhal/ATSAMA5D2/TC/main.c @@ -0,0 +1,78 @@ +/* + ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +#include "ch.h" +#include "hal.h" + +static TCConfig tccfg = { + { + {TC_OUTPUT_ACTIVE, 440 , NULL}, /* 440 hz clock frequency. */ + {TC_OUTPUT_DISABLED, 0, NULL}, + {TC_OUTPUT_DISABLED, 0, NULL} + } +}; + +/* + * Buzzer thread, times are in milliseconds. + */ +static THD_WORKING_AREA(waThread1, 512); +static THD_FUNCTION(Thread1, arg) { + + (void)arg; + chRegSetThreadName("buzzer"); + + while (true) { + tcEnableChannel(&TCD0, 0, 50); + palClearLine(LINE_LED_RED); + chThdSleepMilliseconds(500); + tcDisableChannel(&TCD0, 0); + palSetLine(LINE_LED_RED); + chThdSleepMilliseconds(500); + } +} + +/* + * Application entry point. + */ +int main(void) { + + /* + * System initializations. + * - HAL initialization, this also initializes the configured device drivers + * and performs the board-specific initializations. + * - Kernel initialization, the main() function becomes a thread and the + * RTOS is active. + */ + halInit(); + tcInit(); + chSysInit(); + + /* + * Initializes the TC0 driver. + * GPIOA19 is the TC0 channel 0 output. + */ + palSetGroupMode(PIOA, PAL_PORT_BIT(19), 0U, + PAL_SAMA_FUNC_PERIPH_D | PAL_MODE_SECURE); + tcStart(&TCD0, &tccfg); + chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL); + + /* + * Normal main() thread activity, in this demo it does nothing. + */ + while (true) { + chThdSleepMilliseconds(500); + } +} -- cgit v1.2.3