blob: fde8d866188bc1104cccc74e831b5f77d780e5b9 [file] [log] [blame]
/*
FreeRTOS V8.0.1 - Copyright (C) 2014 Real Time Engineers Ltd.
All rights reserved
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
***************************************************************************
* *
* FreeRTOS provides completely free yet professionally developed, *
* robust, strictly quality controlled, supported, and cross *
* platform software that has become a de facto standard. *
* *
* Help yourself get started quickly and support the FreeRTOS *
* project by purchasing a FreeRTOS tutorial book, reference *
* manual, or both from: http://www.FreeRTOS.org/Documentation *
* *
* Thank you! *
* *
***************************************************************************
This file is part of the FreeRTOS distribution.
FreeRTOS is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License (version 2) as published by the
Free Software Foundation >>!AND MODIFIED BY!<< the FreeRTOS exception.
>>! NOTE: The modification to the GPL is included to allow you to !<<
>>! distribute a combined work that includes FreeRTOS without being !<<
>>! obliged to provide the source code for proprietary components !<<
>>! outside of the FreeRTOS kernel. !<<
FreeRTOS 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. Full license text is available from the following
link: http://www.freertos.org/a00114.html
1 tab == 4 spaces!
***************************************************************************
* *
* Having a problem? Start by reading the FAQ "My application does *
* not run, what could be wrong?" *
* *
* http://www.FreeRTOS.org/FAQHelp.html *
* *
***************************************************************************
http://www.FreeRTOS.org - Documentation, books, training, latest versions,
license and Real Time Engineers Ltd. contact details.
http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
including FreeRTOS+Trace - an indispensable productivity tool, a DOS
compatible FAT file system, and our tiny thread aware UDP/IP stack.
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
licenses offer ticketed support, indemnification and middleware.
http://www.SafeRTOS.com - High Integrity Systems also provide a safety
engineered and independently SIL3 certified version for use in safety and
mission critical applications that require provable dependability.
1 tab == 4 spaces!
*/
#include "FreeRTOS.h"
#include "IntQueueTimer.h"
#include "IntQueue.h"
#define timerINTERRUPT3_FREQUENCY ( 2000UL )
#define timerINTERRUPT4_FREQUENCY ( 2001UL )
void vT3InterruptHandler( void );
void vT4InterruptHandler( void );
/* As these interrupts use the FreeRTOS interrupt entry point, the IPL settings
in the following prototypes have no effect. The interrupt priorities are set
by the ConfigIntTimerX() library calls in vInitialiseTimerForIntQueueTest(). */
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 short ) ( configPERIPHERAL_CLOCK_HZ / timerINTERRUPT3_FREQUENCY );
/* Setup timer 3 interrupt priority to be above the kernel priority. */
IPC3bits.T3IP = ( 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 short ) ( configPERIPHERAL_CLOCK_HZ / timerINTERRUPT4_FREQUENCY );
/* Setup timer 4 interrupt priority to be above the kernel priority. */
IPC4bits.T4IP = 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 )
{
IFS0CLR = _IFS0_T3IF_MASK;
portEND_SWITCHING_ISR( xFirstTimerHandler() );
}
/*-----------------------------------------------------------*/
void vT4InterruptHandler( void )
{
IFS0CLR = _IFS0_T4IF_MASK;
portEND_SWITCHING_ISR( xSecondTimerHandler() );
}