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116 lines
3.9 KiB
C
116 lines
3.9 KiB
C
/*
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FreeRTOS V5.4.1 - Copyright (C) 2009 Real Time Engineers Ltd.
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This file is part of the FreeRTOS distribution.
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FreeRTOS is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License (version 2) as published by the
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Free Software Foundation and modified by the FreeRTOS exception.
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**NOTE** The exception to the GPL is included to allow you to distribute a
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combined work that includes FreeRTOS without being obliged to provide the
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source code for proprietary components outside of the FreeRTOS kernel.
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Alternative commercial license and support terms are also available upon
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request. See the licensing section of http://www.FreeRTOS.org for full
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license details.
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FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along
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with FreeRTOS; if not, write to the Free Software Foundation, Inc., 59
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Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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***************************************************************************
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* *
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* Looking for a quick start? Then check out the FreeRTOS eBook! *
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* See http://www.FreeRTOS.org/Documentation for details *
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* *
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***************************************************************************
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1 tab == 4 spaces!
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Please ensure to read the configuration and relevant port sections of the
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online documentation.
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http://www.FreeRTOS.org - Documentation, latest information, license and
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contact details.
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http://www.SafeRTOS.com - A version that is certified for use in safety
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critical systems.
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http://www.OpenRTOS.com - Commercial support, development, porting,
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licensing and training services.
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*/
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#include "FreeRTOS.h"
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#include "IntQueueTimer.h"
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#include "IntQueue.h"
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#define timerINTERRUPT3_FREQUENCY ( 2000UL )
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#define timerINTERRUPT4_FREQUENCY ( 2001UL )
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void vT3InterruptHandler( void );
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void vT4InterruptHandler( void );
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void __attribute__( (interrupt(ipl0), vector(_TIMER_3_VECTOR))) vT3InterruptWrapper( void );
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void __attribute__( (interrupt(ipl0), vector(_TIMER_4_VECTOR))) vT4InterruptWrapper( void );
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void vInitialiseTimerForIntQueueTest( void )
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{
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/* Timer 1 is used for the tick interrupt, timer 2 is used for the high
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frequency interrupt test. This file therefore uses timers 3 and 4. */
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T3CON = 0;
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TMR3 = 0;
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PR3 = ( unsigned portSHORT ) ( configPERIPHERAL_CLOCK_HZ / timerINTERRUPT3_FREQUENCY );
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/* Setup timer 3 interrupt priority to be above the kernel priority. */
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ConfigIntTimer3( T3_INT_ON | ( configMAX_SYSCALL_INTERRUPT_PRIORITY - 1 ) );
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/* Clear the interrupt as a starting condition. */
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IFS0bits.T3IF = 0;
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/* Enable the interrupt. */
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IEC0bits.T3IE = 1;
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/* Start the timer. */
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T3CONbits.TON = 1;
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/* Do the same for timer 4. */
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T4CON = 0;
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TMR4 = 0;
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PR4 = ( unsigned portSHORT ) ( configPERIPHERAL_CLOCK_HZ / timerINTERRUPT4_FREQUENCY );
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/* Setup timer 4 interrupt priority to be above the kernel priority. */
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ConfigIntTimer4( T4_INT_ON | ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) );
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/* Clear the interrupt as a starting condition. */
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IFS0bits.T4IF = 0;
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/* Enable the interrupt. */
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IEC0bits.T4IE = 1;
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/* Start the timer. */
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T4CONbits.TON = 1;
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}
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/*-----------------------------------------------------------*/
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void vT3InterruptHandler( void )
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{
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IFS0bits.T3IF = 0;
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portEND_SWITCHING_ISR( xFirstTimerHandler() );
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}
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/*-----------------------------------------------------------*/
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void vT4InterruptHandler( void )
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{
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IFS0bits.T4IF = 0;
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portEND_SWITCHING_ISR( xSecondTimerHandler() );
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}
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