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86 lines
3.5 KiB
C
86 lines
3.5 KiB
C
/*
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FreeRTOS.org V5.0.3 - Copyright (C) 2003-2008 Richard Barry.
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This file is part of the FreeRTOS.org distribution.
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FreeRTOS.org is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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FreeRTOS.org is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with FreeRTOS.org; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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A special exception to the GPL can be applied should you wish to distribute
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a combined work that includes FreeRTOS.org, without being obliged to provide
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the source code for any proprietary components. See the licensing section
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of http://www.FreeRTOS.org for full details of how and when the exception
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can be applied.
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***************************************************************************
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***************************************************************************
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* *
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* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
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* and even write all or part of your application on your behalf. *
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* See http://www.OpenRTOS.com for details of the services we provide to *
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* expedite your project. *
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* *
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***************************************************************************
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***************************************************************************
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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 "task.h"
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#define portPRESCALE_VALUE 64
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#define portPRESCALE_REG_SETTING ( 5 << 8 )
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#define portPIT_INTERRUPT_ENABLED ( 0x08 )
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#define configPIT0_INTERRUPT_VECTOR ( 55 )
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void vApplicationSetupInterrupts( void )
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{
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const unsigned portSHORT usCompareMatchValue = ( ( configCPU_CLOCK_HZ / portPRESCALE_VALUE ) / configTICK_RATE_HZ );
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/* Configure interrupt priority and level and unmask interrupt. */
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MCF_INTC0_ICR55 = ( configKERNEL_INTERRUPT_PRIORITY | ( 1 << 3 ) );
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MCF_INTC0_IMRH &= ~( MCF_INTC_IMRH_INT_MASK55 );
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MCF_INTC0_ICR63 = ( configKERNEL_INTERRUPT_PRIORITY | ( 1 << 3 ) );
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MCF_INTC0_IMRH &= ~( MCF_INTC_IMRH_INT_MASK63 );
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MCF_PIT0_PCSR |= MCF_PIT_PCSR_PIF;
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MCF_PIT0_PCSR = ( portPRESCALE_REG_SETTING | MCF_PIT_PCSR_PIE | MCF_PIT_PCSR_RLD | MCF_PIT_PCSR_EN );
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MCF_PIT0_PMR = usCompareMatchValue;
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}
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/*-----------------------------------------------------------*/
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void __attribute__ ((interrupt)) __cs3_isr_interrupt_119( void )
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{
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MCF_PIT0_PCSR |= MCF_PIT_PCSR_PIF;
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vTaskIncrementTick();
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#if configUSE_PREEMPTION == 1
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{
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taskYIELD();
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}
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#endif
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}
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