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Update demo to include a test of nesting interrupt accessing queues.

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This commit is contained in:
Richard Barry 2008-05-18 16:21:12 +00:00
parent 684b898abc
commit 0965823a67
6 changed files with 482 additions and 18 deletions
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117
Demo/PIC32MX_MPLAB/IntQueueTimer.c Normal file
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/*
FreeRTOS.org V5.0.0 - Copyright (C) 2003-2008 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.
***************************************************************************
***************************************************************************
* *
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, *
* and even write all or part of your application on your behalf. *
* See http://www.OpenRTOS.com for details of the services we provide to *
* expedite your project. *
* *
***************************************************************************
***************************************************************************
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 timerINTERRUPT3_FREQUENCY ( 2000UL )
#define timerINTERRUPT4_FREQUENCY ( 2001UL )
void vT3InterruptHandler( void );
void vT4InterruptHandler( void );
void __attribute__( (interrupt(ipl0), vector(_TIMER_3_VECTOR))) vT3InterruptWrapper( void );
void __attribute__( (interrupt(ipl0), vector(_TIMER_4_VECTOR))) vT4InterruptWrapper( void );
void vInitialiseTimerForIntQueueTest( void )
{
/* Timer 1 is used for the tick interrupt, timer 2 is used for the high
frequency interrupt test. This file therefore uses timers 3 and 4. */
T3CON = 0;
TMR3 = 0;
PR3 = ( unsigned portSHORT ) ( configPERIPHERAL_CLOCK_HZ / timerINTERRUPT3_FREQUENCY );
/* Setup timer 3 interrupt priority to be above the kernel priority. */
ConfigIntTimer3( T3_INT_ON | ( configMAX_SYSCALL_INTERRUPT_PRIORITY - 1 ) );
/* Clear the interrupt as a starting condition. */
IFS0bits.T3IF = 0;
/* Enable the interrupt. */
IEC0bits.T3IE = 1;
/* Start the timer. */
T3CONbits.TON = 1;
/* Do the same for timer 4. */
T4CON = 0;
TMR4 = 0;
PR4 = ( unsigned portSHORT ) ( configPERIPHERAL_CLOCK_HZ / timerINTERRUPT4_FREQUENCY );
/* Setup timer 4 interrupt priority to be above the kernel priority. */
ConfigIntTimer4( T4_INT_ON | ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) );
/* Clear the interrupt as a starting condition. */
IFS0bits.T4IF = 0;
/* Enable the interrupt. */
IEC0bits.T4IE = 1;
/* Start the timer. */
T4CONbits.TON = 1;
}
/*-----------------------------------------------------------*/
void vT3InterruptHandler( void )
{
IFS0bits.T3IF = 0;
portEND_SWITCHING_ISR( xFirstTimerHandler() );
}
/*-----------------------------------------------------------*/
void vT4InterruptHandler( void )
{
IFS0bits.T4IF = 0;
portEND_SWITCHING_ISR( xSecondTimerHandler() );
}