80 lines
3.1 KiB
C
80 lines
3.1 KiB
C
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/*
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* FreeRTOS V202104.00
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* Copyright (C) 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* http://www.FreeRTOS.org
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* http://aws.amazon.com/freertos
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*
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* 1 tab == 4 spaces!
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*/
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/* FreeRTOS includes. */
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#include "FreeRTOS.h"
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#include "task.h"
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/* Library includes. */
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#include "board.h"
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#include "chip.h"
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/*
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* The FreeRTOS tick handler. This function must be installed as the handler
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* for the timer used to generate the tick interrupt. Note that the interrupt
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* generated by the PIT is shared by other system peripherals, so if the PIT is
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* used for Tick generation then FreeRTOS_Tick_Handler() can only be installed
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* directly as the PIT handler if no other system interrupts need to be
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* serviced. If system interrupts other than the PIT need to be serviced then
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* install System_Handler() as the PIT interrupt handler in place of
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* FreeRTOS_Tick_Handler() and add additional interrupt processing into the
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* implementation of System_Handler().
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*/
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extern void FreeRTOS_Tick_Handler( void );
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/*-----------------------------------------------------------*/
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static void System_Handler( void *para )
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{
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vTimerClrInt((uint32_t)para);
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/* See the comments above the function prototype in this file. */
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FreeRTOS_Tick_Handler();
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}
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/*-----------------------------------------------------------*/
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/*
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* The application must provide a function that configures a peripheral to
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* create the FreeRTOS tick interrupt, then define configSETUP_TICK_INTERRUPT()
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* in FreeRTOSConfig.h to call the function. This file contains a function
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* that is suitable for use on the Atmel SAMA5.
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*/
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void vConfigureTickInterrupt( void )
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{
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vTimerInit(TIMER_ID0, 1, 1, configTICK_RATE_HZ);
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request_irq(TIMER0_IRQn, 0, System_Handler, (void*)TIMER_ID0);
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vTimerEnable(TIMER_ID0);
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/* Prevent compiler warnings in the case where System_Handler() is not used
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as the handler. See the comments above the System_Handler() function
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prototype at the top of this file. */
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( void ) System_Handler;
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}
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/*-----------------------------------------------------------*/
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