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/*
FreeRTOS V7.4.1 - Copyright (C) 2013 Real Time Engineers Ltd.
FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT
http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
***************************************************************************
* *
* FreeRTOS tutorial books are available in pdf and paperback. *
* Complete, revised, and edited pdf reference manuals are also *
* available. *
* *
* Purchasing FreeRTOS documentation will not only help you, by *
* ensuring you get running as quickly as possible and with an *
* in-depth knowledge of how to use FreeRTOS, it will also help *
* the FreeRTOS project to continue with its mission of providing *
* professional grade, cross platform, de facto standard solutions *
* for microcontrollers - completely free of charge! *
* *
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
* *
* Thank you for using FreeRTOS, and thank you for your support! *
* *
***************************************************************************
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. See the GNU General Public License for more
details. You should have received a copy of the GNU General Public License
and the FreeRTOS license exception along with FreeRTOS; if not it can be
viewed here: http://www.freertos.org/a00114.html and also obtained by
writing to Real Time Engineers Ltd., contact details for whom are available
on the FreeRTOS WEB site.
1 tab == 4 spaces!
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* *
* Having a problem? Start by reading the FAQ "My application does *
* not run, what could be wrong?" *
* *
* http://www.FreeRTOS.org/FAQHelp.html *
* *
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http://www.FreeRTOS.org - Documentation, books, training, latest versions,
license and Real Time Engineers Ltd. contact details.
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including FreeRTOS+Trace - an indispensable productivity tool, and our new
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Integrity Systems, who sell the code with commercial support,
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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.
*/
/*
* This file contains the non-portable and therefore RX62N specific parts of
* the IntQueue standard demo task - namely the configuration of the timers
* that generate the interrupts and the interrupt entry points.
*/
/* Scheduler includes. */
#include "FreeRTOS.h"
#include "task.h"
/* Demo includes. */
#include "IntQueueTimer.h"
#include "IntQueue.h"
/* Hardware specifics. */
#include "iodefine.h"
#define tmrTIMER_0_1_FREQUENCY ( 2000UL )
#define tmrTIMER_2_3_FREQUENCY ( 2001UL )
void vInitialiseTimerForIntQueueTest( void )
{
/* Ensure interrupts do not start until full configuration is complete. */
portENTER_CRITICAL();
{
/* Cascade two 8bit timer channels to generate the interrupts.
8bit timer unit 1 (TMR0 and TMR1) and 8bit timer unit 2 (TMR2 and TMR3 are
utilised for this test. */
/* Enable the timers. */
SYSTEM.MSTPCRA.BIT.MSTPA5 = 0;
SYSTEM.MSTPCRA.BIT.MSTPA4 = 0;
/* Enable compare match A interrupt request. */
TMR0.TCR.BIT.CMIEA = 1;
TMR2.TCR.BIT.CMIEA = 1;
/* Clear the timer on compare match A. */
TMR0.TCR.BIT.CCLR = 1;
TMR2.TCR.BIT.CCLR = 1;
/* Set the compare match value. */
TMR01.TCORA = ( unsigned short ) ( ( ( configPERIPHERAL_CLOCK_HZ / tmrTIMER_0_1_FREQUENCY ) -1 ) / 8 );
TMR23.TCORA = ( unsigned short ) ( ( ( configPERIPHERAL_CLOCK_HZ / tmrTIMER_0_1_FREQUENCY ) -1 ) / 8 );
/* 16 bit operation ( count from timer 1,2 ). */
TMR0.TCCR.BIT.CSS = 3;
TMR2.TCCR.BIT.CSS = 3;
/* Use PCLK as the input. */
TMR1.TCCR.BIT.CSS = 1;
TMR3.TCCR.BIT.CSS = 1;
/* Divide PCLK by 8. */
TMR1.TCCR.BIT.CKS = 2;
TMR3.TCCR.BIT.CKS = 2;
/* Enable TMR 0, 2 interrupts. */
IEN( TMR0, CMIA0 ) = 1;
IEN( TMR2, CMIA2 ) = 1;
/* Set the timer interrupts to be above the kernel. The interrupts are
assigned different priorities so they nest with each other. */
IPR( TMR0, CMIA0 ) = configMAX_SYSCALL_INTERRUPT_PRIORITY - 1;
IPR( TMR2, CMIA2 ) = ( configMAX_SYSCALL_INTERRUPT_PRIORITY - 2 );
}
portEXIT_CRITICAL();
/* Ensure the interrupts are clear as they are edge detected. */
IR( TMR0, CMIA0 ) = 0;
IR( TMR2, CMIA2 ) = 0;
}
/*-----------------------------------------------------------*/
#pragma interrupt ( vT0_1InterruptHandler( vect = VECT_TMR0_CMIA0, enable ) )
void vT0_1InterruptHandler( void )
{
portYIELD_FROM_ISR( xFirstTimerHandler() );
}
/*-----------------------------------------------------------*/
#pragma interrupt ( vT2_3InterruptHandler( vect = VECT_TMR2_CMIA2, enable ) )
void vT2_3InterruptHandler( void )
{
portYIELD_FROM_ISR( xSecondTimerHandler() );
}