/* | |
FreeRTOS.org V5.1.0 - Copyright (C) 2003-2008 Richard Barry. | |
This file is part of the FreeRTOS.org distribution. | |
FreeRTOS.org is free software; you can redistribute it and/or modify | |
it under the terms of the GNU General Public License as published by | |
the Free Software Foundation; either version 2 of the License, or | |
(at your option) any later version. | |
FreeRTOS.org 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 | |
along with FreeRTOS.org; if not, write to the Free Software | |
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
A special exception to the GPL can be applied should you wish to distribute | |
a combined work that includes FreeRTOS.org, without being obliged to provide | |
the source code for any proprietary components. See the licensing section | |
of http://www.FreeRTOS.org for full details of how and when the exception | |
can be applied. | |
*************************************************************************** | |
*************************************************************************** | |
* * | |
* SAVE TIME AND MONEY! We can port FreeRTOS.org to your own hardware, * | |
* and even write all or part of your application on your behalf. * | |
* See http://www.OpenRTOS.com for details of the services we provide to * | |
* expedite your project. * | |
* * | |
*************************************************************************** | |
*************************************************************************** | |
Please ensure to read the configuration and relevant port sections of the | |
online documentation. | |
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. | |
*/ | |
/* 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() ); | |
} | |