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96 lines
4.7 KiB
C
96 lines
4.7 KiB
C
/*
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FreeRTOS V6.0.5 - Copyright (C) 2010 Real Time Engineers Ltd.
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***************************************************************************
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* *
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* If you are: *
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* *
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* + New to FreeRTOS, *
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* + Wanting to learn FreeRTOS or multitasking in general quickly *
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* + Looking for basic training, *
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* + Wanting to improve your FreeRTOS skills and productivity *
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* *
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* then take a look at the FreeRTOS eBook *
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* *
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* "Using the FreeRTOS Real Time Kernel - a Practical Guide" *
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* http://www.FreeRTOS.org/Documentation *
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* *
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* A pdf reference manual is also available. Both are usually delivered *
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* to your inbox within 20 minutes to two hours when purchased between 8am *
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* and 8pm GMT (although please allow up to 24 hours in case of *
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* exceptional circumstances). Thank you for your support! *
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* *
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***************************************************************************
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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
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a 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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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. You should have received a copy of the GNU General Public
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License and the FreeRTOS license exception along with FreeRTOS; if not it
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can be viewed here: http://www.freertos.org/a00114.html and also obtained
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by writing to Richard Barry, contact details for whom are available on the
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FreeRTOS WEB site.
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1 tab == 4 spaces!
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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 timerINTERRUPT1_FREQUENCY ( 2000UL )
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#define timerINTERRUPT2_FREQUENCY ( 2001UL )
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#define timerPRESCALE_VALUE ( 2 )
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void vInitialiseTimerForIntQueueTest( void )
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{
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const unsigned portSHORT usCompareMatchValue1 = ( unsigned portSHORT ) ( ( configCPU_CLOCK_HZ / timerPRESCALE_VALUE ) / timerINTERRUPT1_FREQUENCY );
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const unsigned portSHORT usCompareMatchValue2 = ( unsigned portSHORT ) ( ( configCPU_CLOCK_HZ / timerPRESCALE_VALUE ) / timerINTERRUPT2_FREQUENCY );
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/* Configure interrupt priority and level and unmask interrupt. */
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MCF_INTC0_ICR56 = ( ( configMAX_SYSCALL_INTERRUPT_PRIORITY - 1 ) << 3 );
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MCF_INTC0_IMRH &= ~( MCF_INTC_IMRH_INT_MASK56 );
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MCF_PIT1_PCSR |= MCF_PIT_PCSR_PIF;
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MCF_PIT1_PCSR = ( MCF_PIT_PCSR_PIE | MCF_PIT_PCSR_RLD | MCF_PIT_PCSR_EN );
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MCF_PIT1_PMR = usCompareMatchValue1;
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MCF_INTC0_ICR57 = ( configMAX_SYSCALL_INTERRUPT_PRIORITY << 3 );
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MCF_INTC0_IMRH &= ~( MCF_INTC_IMRH_INT_MASK57 );
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MCF_PIT2_PCSR |= MCF_PIT_PCSR_PIF;
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MCF_PIT2_PCSR = ( MCF_PIT_PCSR_PIE | MCF_PIT_PCSR_RLD | MCF_PIT_PCSR_EN );
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MCF_PIT2_PMR = usCompareMatchValue2;
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}
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/*-----------------------------------------------------------*/
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void __attribute__ ((interrupt)) __cs3_isr_interrupt_120( void )
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{
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MCF_PIT1_PCSR |= MCF_PIT_PCSR_PIF;
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portEND_SWITCHING_ISR( xFirstTimerHandler() );
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}
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/*-----------------------------------------------------------*/
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void __attribute__ ((interrupt)) __cs3_isr_interrupt_121( void )
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{
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MCF_PIT2_PCSR |= MCF_PIT_PCSR_PIF;
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portEND_SWITCHING_ISR( xSecondTimerHandler() );
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}
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