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/*
FreeRTOS V9.0.0rc1 - Copyright (C) 2016 Real Time Engineers Ltd.
All rights reserved
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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 on the following
link: http://www.freertos.org/a00114.html
***************************************************************************
* *
* FreeRTOS provides completely free yet professionally developed, *
* robust, strictly quality controlled, supported, and cross *
* platform software that is more than just the market leader, it *
* is the industry's de facto standard. *
* *
* Help yourself get started quickly while simultaneously helping *
* to support the FreeRTOS project by purchasing a FreeRTOS *
* tutorial book, reference manual, or both: *
* http://www.FreeRTOS.org/Documentation *
* *
***************************************************************************
http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
the FAQ page "My application does not run, what could be wrong?". Have you
defined configASSERT()?
http://www.FreeRTOS.org/support - In return for receiving this top quality
embedded software for free we request you assist our global community by
participating in the support forum.
http://www.FreeRTOS.org/training - Investing in training allows your team to
be as productive as possible as early as possible. Now you can receive
FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
Ltd, and the world's leading authority on the world's leading RTOS.
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.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
licenses offer ticketed support, indemnification and commercial 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!
*/
/*
* 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.
*
* ***NOTE***: When using GCC it is best to compile this file with maximum speed
* optimisation - otherwise standard demo tasks that monitor their own
* performance might fail assertion tests.
*/
/* Scheduler includes. */
#include "FreeRTOS.h"
#include "task.h"
/* Demo includes. */
#include "IntQueueTimer.h"
#include "IntQueue.h"
#define tmrTIMER_0_1_FREQUENCY ( 2000UL )
#define tmrTIMER_2_3_FREQUENCY ( 2007UL )
void vInitialiseTimerForIntQueueTest( void )
{
/* Ensure interrupts do not start until full configuration is complete. */
portENTER_CRITICAL();
{
/* Give write access. */
SYSTEM.PRCR.WORD = 0xa502;
/* 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. */
TMR0.TCR.BIT.CMIEA = 1;
TMR2.TCR.BIT.CMIEA = 1;
/* Set interrupt priority and enable. */
IPR( TMR0, CMIA0 ) = configMAX_SYSCALL_INTERRUPT_PRIORITY - 1;
IR( TMR0, CMIA0 ) = 0U;
IEN( TMR0, CMIA0 ) = 1U;
/* Do the same for TMR2, but to vector 129. */
IPR( TMR2, CMIA2 ) = configMAX_SYSCALL_INTERRUPT_PRIORITY - 2;
IR( TMR2, CMIA2 ) = 0U;
IEN( TMR2, CMIA2 ) = 1U;
}
portEXIT_CRITICAL();
}
/*-----------------------------------------------------------*/
#ifdef __GNUC__
void vIntQTimerISR0( void ) __attribute__ ((interrupt));
void vIntQTimerISR1( void ) __attribute__ ((interrupt));
void vIntQTimerISR0( void )
{
/* Enable interrupts to allow interrupt nesting. */
__asm volatile( "setpsw i" );
portYIELD_FROM_ISR( xFirstTimerHandler() );
}
/*-----------------------------------------------------------*/
void vIntQTimerISR1( void )
{
/* Enable interrupts to allow interrupt nesting. */
__asm volatile( "setpsw i" );
portYIELD_FROM_ISR( xSecondTimerHandler() );
}
#endif /* __GNUC__ */
#ifdef __ICCRX__
#pragma vector = VECT_TMR0_CMIA0
__interrupt void vT0_1InterruptHandler( void )
{
__enable_interrupt();
portYIELD_FROM_ISR( xFirstTimerHandler() );
}
/*-----------------------------------------------------------*/
#pragma vector = VECT_TMR2_CMIA2
__interrupt void vT2_3InterruptHandler( void )
{
__enable_interrupt();
portYIELD_FROM_ISR( xSecondTimerHandler() );
}
#endif /* __ICCRX__ */
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