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/*
FreeRTOS V8.1.0 - 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!
*/
/*
* This file contains the non-portable and therefore RX64M 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"
#include "rskrx64mdef.h"
#define IPR_PERIB_INTB128 128
#define IPR_PERIB_INTB129 129
#define IER_PERIB_INTB128 0x10
#define IER_PERIB_INTB129 0x10
#define IEN_PERIB_INTB128 IEN0
#define IEN_PERIB_INTB129 IEN1
#define IR_PERIB_INTB128 128
#define IR_PERIB_INTB129 129
void vIntQTimerISR0( void ) __attribute__ ((interrupt));
void vIntQTimerISR1( void ) __attribute__ ((interrupt));
#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();
{
/* 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;
/* Map TMR0 CMIA0 interrupt to vector slot B number 128 and set
priority above the kernel's priority, but below the max syscall
priority. */
ICU.SLIBXR128.BYTE = 3; /* Three is TMR0 compare match A. */
IPR( PERIB, INTB128 ) = configMAX_SYSCALL_INTERRUPT_PRIORITY - 1;
IEN( PERIB, INTB128 ) = 1;
/* Ensure that the flag is set to 0, otherwise the interrupt will not be
accepted. */
IR( PERIB, INTB128 ) = 0;
/* Do the same for TMR2, but to vector 129. */
ICU.SLIBXR129.BYTE = 9; /* Nine is TMR2 compare match A. */
IPR( PERIB, INTB129 ) = configMAX_SYSCALL_INTERRUPT_PRIORITY - 2;
IEN( PERIB, INTB129 ) = 1;
IR( PERIB, INTB129 ) = 0;
}
portEXIT_CRITICAL();
}
/*-----------------------------------------------------------*/
/* On vector 128. */
void vIntQTimerISR0( void )
{
/* Enable interrupts to allow interrupt nesting. */
__asm volatile( "setpsw i" );
portYIELD_FROM_ISR( xFirstTimerHandler() );
}
/*-----------------------------------------------------------*/
/* On vector 129. */
void vIntQTimerISR1( void )
{
/* Enable interrupts to allow interrupt nesting. */
__asm volatile( "setpsw i" );
portYIELD_FROM_ISR( xSecondTimerHandler() );
}
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