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/*
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!
*/
/* Scheduler includes. */
#include "FreeRTOS.h"
/* Demo includes. */
#include "IntQueueTimer.h"
#include "IntQueue.h"
/* Library includes. */
#include "hw_ints.h"
#include "hw_memmap.h"
#include "hw_types.h"
#include "interrupt.h"
#include "sysctl.h"
#include "lmi_timer.h"
#define tmrTIMER_2_FREQUENCY ( 2000UL )
#define tmrTIMER_3_FREQUENCY ( 2001UL )
void vInitialiseTimerForIntQueueTest( void )
{
unsigned long ulFrequency;
/* Timer 2 and 3 are utilised for this test. */
SysCtlPeripheralEnable( SYSCTL_PERIPH_TIMER2 );
SysCtlPeripheralEnable( SYSCTL_PERIPH_TIMER3 );
TimerConfigure( TIMER2_BASE, TIMER_CFG_32_BIT_PER );
TimerConfigure( TIMER3_BASE, TIMER_CFG_32_BIT_PER );
/* Set the timer interrupts to be above the kernel. The interrupts are
assigned different priorities so they nest with each other. */
IntPrioritySet( INT_TIMER2A, configMAX_SYSCALL_INTERRUPT_PRIORITY + ( 1 << 5 ) ); /* Shift left 5 as only the top 3 bits are implemented. */
IntPrioritySet( INT_TIMER3A, configMAX_SYSCALL_INTERRUPT_PRIORITY );
/* Ensure interrupts do not start until the scheduler is running. */
portDISABLE_INTERRUPTS();
/* The rate at which the timers will interrupt. */
ulFrequency = configCPU_CLOCK_HZ / tmrTIMER_2_FREQUENCY;
TimerLoadSet( TIMER2_BASE, TIMER_A, ulFrequency );
IntEnable( INT_TIMER2A );
TimerIntEnable( TIMER2_BASE, TIMER_TIMA_TIMEOUT );
/* The rate at which the timers will interrupt. */
ulFrequency = configCPU_CLOCK_HZ / tmrTIMER_3_FREQUENCY;
TimerLoadSet( TIMER3_BASE, TIMER_A, ulFrequency );
IntEnable( INT_TIMER3A );
TimerIntEnable( TIMER3_BASE, TIMER_TIMA_TIMEOUT );
/* Enable both timers. */
TimerEnable( TIMER2_BASE, TIMER_A );
TimerEnable( TIMER3_BASE, TIMER_A );
}
/*-----------------------------------------------------------*/
void vT2InterruptHandler( void )
{
TimerIntClear( TIMER2_BASE, TIMER_TIMA_TIMEOUT );
portEND_SWITCHING_ISR( xFirstTimerHandler() );
}
/*-----------------------------------------------------------*/
void vT3InterruptHandler( void )
{
TimerIntClear( TIMER3_BASE, TIMER_TIMA_TIMEOUT );
portEND_SWITCHING_ISR( xSecondTimerHandler() );
}