Add in interrupt nesting test - not yet complete.
Richard Barry
13 years ago
parent
8d748af95c
commit
f354d6599e
@ -0,0 +1,203 @@
|
||||
/*
|
||||
FreeRTOS V7.0.2 - Copyright (C) 2011 Real Time Engineers Ltd.
|
||||
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* 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 Richard Barry, contact details for whom are available on the
|
||||
FreeRTOS WEB site.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, latest information, license and
|
||||
contact details.
|
||||
|
||||
http://www.SafeRTOS.com - A version that is certified for use in safety
|
||||
critical systems.
|
||||
|
||||
http://www.OpenRTOS.com - Commercial support, development, porting,
|
||||
licensing and training services.
|
||||
*/
|
||||
|
||||
/* Standard includes. */
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
/* Scheduler includes. */
|
||||
#include "FreeRTOS.h"
|
||||
#include "task.h"
|
||||
#include "semphr.h"
|
||||
|
||||
/* Demo application includes. */
|
||||
#include "InterruptNestTest.h"
|
||||
|
||||
/* TriCore specific includes. */
|
||||
#include <tc1782.h>
|
||||
#include <machine/intrinsics.h>
|
||||
#include <machine/cint.h>
|
||||
#include <machine/wdtcon.h>
|
||||
|
||||
/* This constant is specific to this test application. It allows the high
|
||||
frequency (interrupt nesting test) timer to know how often to trigger, and the
|
||||
check task to know how many iterations to expect at any given time. */
|
||||
#define tmrtestHIGH_FREQUENCY_TIMER_TEST_HZ ( 1931UL )
|
||||
|
||||
static void prvPortHighFrequencyTimerHandler( int iArg ) __attribute__((longcall));
|
||||
static void prvHighFrequencyTimerTask( void *pvParameters );
|
||||
|
||||
static const unsigned long ulCompareMatchValue = configPERIPHERAL_CLOCK_HZ / tmrtestHIGH_FREQUENCY_TIMER_TEST_HZ;
|
||||
static const unsigned long ulInterruptsPer10ms = tmrtestHIGH_FREQUENCY_TIMER_TEST_HZ / 100UL;
|
||||
static const unsigned long ulSemaphoreGiveRate_ms = 10UL;
|
||||
|
||||
static xSemaphoreHandle xHighFrequencyTimerSemaphore = NULL;
|
||||
static unsigned long ulHighFrequencyCounterIterations = 0UL;
|
||||
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
void vSetupInterruptNestingTest( void )
|
||||
{
|
||||
unsigned long ulCompareMatchBits;
|
||||
|
||||
/* Create the semaphore used to communicate between the high frequency
|
||||
interrupt and the task. */
|
||||
vSemaphoreCreateBinary( xHighFrequencyTimerSemaphore );
|
||||
configASSERT( xHighFrequencyTimerSemaphore );
|
||||
|
||||
/* Create the task that pends on the semaphore that is given by the
|
||||
high frequency interrupt. */
|
||||
xTaskCreate( prvHighFrequencyTimerTask, ( signed char * ) "HFTmr", configMINIMAL_STACK_SIZE, NULL, configMAX_PRIORITIES - 1, NULL );
|
||||
|
||||
/* Setup the interrupt itself. The STM module clock divider is setup when
|
||||
the tick interrupt is configured - which is when the scheduler is started -
|
||||
so there is no need to do it here. */
|
||||
|
||||
unlock_wdtcon();
|
||||
{
|
||||
/* Wait until access to Endint protected register is enabled. */
|
||||
while( 0 != ( WDT_CON0.reg & 0x1UL ) );
|
||||
|
||||
/* RMC == 1 so STM Clock == FPI */
|
||||
STM_CLC.reg = ( 1UL << 8 );
|
||||
}
|
||||
lock_wdtcon();
|
||||
|
||||
/* The tick interrupt uses compare match 0, so this test uses compare match
|
||||
1, which means shifting up the values by 16 before writing them to the
|
||||
register. */
|
||||
ulCompareMatchBits = ( 0x1fUL - __CLZ( ulCompareMatchValue ) );
|
||||
ulCompareMatchBits <<= 16UL;
|
||||
|
||||
/* Write the values to the relevant SMT registers, without changing other
|
||||
bits. */
|
||||
taskENTER_CRITICAL();
|
||||
{
|
||||
STM_CMCON.reg &= ~( 0x1fUL << 16UL );
|
||||
STM_CMCON.reg |= ulCompareMatchBits;
|
||||
STM_CMP1.reg = ulCompareMatchValue;
|
||||
|
||||
if( 0 != _install_int_handler( configMAX_SYSCALL_INTERRUPT_PRIORITY - 5, prvPortHighFrequencyTimerHandler, 0 ) )
|
||||
{
|
||||
/* Set-up the interrupt. */
|
||||
STM_SRC1.reg = ( ( configMAX_SYSCALL_INTERRUPT_PRIORITY - 5 ) | 0x00005000UL );
|
||||
|
||||
/* Enable the Interrupt. */
|
||||
STM_ISRR.reg &= ~( 0x03UL << 2UL );
|
||||
STM_ISRR.reg |= ( 0x1UL << 2UL );
|
||||
STM_ICR.reg &= ~( 0x07UL << 4UL );
|
||||
STM_ICR.reg |= ( 0x5UL << 4UL );
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Failed to install the interrupt. */
|
||||
configASSERT( ( ( volatile void * ) NULL ) );
|
||||
}
|
||||
}
|
||||
taskEXIT_CRITICAL();
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
unsigned long ulInterruptNestingTestGetIterationCount( unsigned long *pulExpectedIncFrequency_ms )
|
||||
{
|
||||
*pulExpectedIncFrequency_ms = ulSemaphoreGiveRate_ms;
|
||||
return ulHighFrequencyCounterIterations;
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvHighFrequencyTimerTask( void *pvParameters )
|
||||
{
|
||||
/* Just to remove compiler warnings about the unused parameter. */
|
||||
( void ) pvParameters;
|
||||
|
||||
for( ;; )
|
||||
{
|
||||
/* Wait for the next trigger from the high frequency timer interrupt. */
|
||||
xSemaphoreTake( xHighFrequencyTimerSemaphore, portMAX_DELAY );
|
||||
|
||||
/* Just count how many times the task has been unblocked before
|
||||
returning to wait for the semaphore again. */
|
||||
ulHighFrequencyCounterIterations++;
|
||||
}
|
||||
}
|
||||
/*-----------------------------------------------------------*/
|
||||
|
||||
static void prvPortHighFrequencyTimerHandler( int iArg )
|
||||
{
|
||||
static volatile unsigned long ulExecutionCounter = 0UL;
|
||||
unsigned long ulHigherPriorityTaskWoken = pdFALSE;
|
||||
|
||||
/* Just to avoid compiler warnings about unused parameters. */
|
||||
( void ) iArg;
|
||||
|
||||
/* Clear the interrupt source. */
|
||||
STM_ISRR.reg = 1UL << 2UL;
|
||||
|
||||
/* Reload the Compare Match register for X ticks into the future.*/
|
||||
STM_CMP1.reg += ulCompareMatchValue;
|
||||
|
||||
ulExecutionCounter++;
|
||||
|
||||
if( ulExecutionCounter >= ulInterruptsPer10ms )
|
||||
{
|
||||
ulExecutionCounter = xSemaphoreGiveFromISR( xHighFrequencyTimerSemaphore, &ulHigherPriorityTaskWoken );
|
||||
|
||||
/* If the semaphore was given ulExeuctionCounter will now be pdTRUE. */
|
||||
configASSERT( ulExecutionCounter == pdTRUE );
|
||||
|
||||
/* Start counting again. */
|
||||
ulExecutionCounter = 0UL;
|
||||
}
|
||||
|
||||
portYIELD_FROM_ISR( ulHigherPriorityTaskWoken );
|
||||
}
|
||||
@ -0,0 +1,61 @@
|
||||
/*
|
||||
FreeRTOS V7.0.2 - Copyright (C) 2011 Real Time Engineers Ltd.
|
||||
|
||||
|
||||
***************************************************************************
|
||||
* *
|
||||
* 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 Richard Barry, contact details for whom are available on the
|
||||
FreeRTOS WEB site.
|
||||
|
||||
1 tab == 4 spaces!
|
||||
|
||||
http://www.FreeRTOS.org - Documentation, latest information, license and
|
||||
contact details.
|
||||
|
||||
http://www.SafeRTOS.com - A version that is certified for use in safety
|
||||
critical systems.
|
||||
|
||||
http://www.OpenRTOS.com - Commercial support, development, porting,
|
||||
licensing and training services.
|
||||
*/
|
||||
|
||||
#ifndef INTERRUPT_NEST_TEST_H
|
||||
#define INTERRUPT_NEST_TEST_H
|
||||
|
||||
void vSetupInterruptNestingTest( void );
|
||||
unsigned long ulInterruptNestingTestGetIterationCount( unsigned long *pulExpectedIncFrequency_ms );
|
||||
|
||||
#endif /* INTERRUPT_NEST_TEST_H */
|
||||
|
||||
Loading…
Reference in New Issue