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/*
FreeRTOS.org V5.1.2 - Copyright (C) 2003-2009 Richard Barry.
This file is part of the FreeRTOS.org distribution.
FreeRTOS.org is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
FreeRTOS.org is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FreeRTOS.org; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes FreeRTOS.org, without being obliged to provide
the source code for any proprietary components. See the licensing section
of http://www.FreeRTOS.org for full details of how and when the exception
can be applied.
***************************************************************************
***************************************************************************
* *
* Get the FreeRTOS eBook! See http://www.FreeRTOS.org/Documentation *
* *
* This is a concise, step by step, 'hands on' guide that describes both *
* general multitasking concepts and FreeRTOS specifics. It presents and *
* explains numerous examples that are written using the FreeRTOS API. *
* Full source code for all the examples is provided in an accompanying *
* .zip file. *
* *
***************************************************************************
***************************************************************************
Please ensure to read the configuration and relevant port sections of the
online documentation.
http://www.FreeRTOS.org - Documentation, latest information, license and
contact details.
http://www.SafeRTOS.com - A version that is certified for use in safety
critical systems.
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
#include "FreeRTOS.h"
#include "IntQueueTimer.h"
#include "IntQueue.h"
#define timerINTERRUPT1_FREQUENCY ( 2000UL )
#define timerINTERRUPT2_FREQUENCY ( 2001UL )
#define timerPRESCALE_VALUE ( 2 )
void vInitialiseTimerForIntQueueTest( void )
{
const unsigned portSHORT usCompareMatchValue1 = ( unsigned portSHORT ) ( ( configCPU_CLOCK_HZ / timerPRESCALE_VALUE ) / timerINTERRUPT1_FREQUENCY );
const unsigned portSHORT usCompareMatchValue2 = ( unsigned portSHORT ) ( ( configCPU_CLOCK_HZ / timerPRESCALE_VALUE ) / timerINTERRUPT2_FREQUENCY );
/* Configure interrupt priority and level and unmask interrupt. */
MCF_INTC0_ICR56 = ( ( configMAX_SYSCALL_INTERRUPT_PRIORITY - 1 ) << 3 );
MCF_INTC0_IMRH &= ~( MCF_INTC_IMRH_INT_MASK56 );
MCF_PIT1_PCSR |= MCF_PIT_PCSR_PIF;
MCF_PIT1_PCSR = ( MCF_PIT_PCSR_PIE | MCF_PIT_PCSR_RLD | MCF_PIT_PCSR_EN );
MCF_PIT1_PMR = usCompareMatchValue1;
MCF_INTC0_ICR57 = ( configMAX_SYSCALL_INTERRUPT_PRIORITY << 3 );
MCF_INTC0_IMRH &= ~( MCF_INTC_IMRH_INT_MASK57 );
MCF_PIT2_PCSR |= MCF_PIT_PCSR_PIF;
MCF_PIT2_PCSR = ( MCF_PIT_PCSR_PIE | MCF_PIT_PCSR_RLD | MCF_PIT_PCSR_EN );
MCF_PIT2_PMR = usCompareMatchValue2;
}
/*-----------------------------------------------------------*/
void __attribute__ ((interrupt)) __cs3_isr_interrupt_120( void )
{
MCF_PIT1_PCSR |= MCF_PIT_PCSR_PIF;
portEND_SWITCHING_ISR( xFirstTimerHandler() );
}
/*-----------------------------------------------------------*/
void __attribute__ ((interrupt)) __cs3_isr_interrupt_121( void )
{
MCF_PIT2_PCSR |= MCF_PIT_PCSR_PIF;
portEND_SWITCHING_ISR( xSecondTimerHandler() );
}
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