/* | |
FreeRTOS V9.0.1 - Copyright (C) 2017 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 initialises the two timers available in the Timer32 peripheral. | |
* | |
* Channels 0 and 1 provide the interrupts that are used with the IntQ | |
* standard demo tasks, which test interrupt nesting and using queues from | |
* interrupts. | |
*/ | |
/* Scheduler includes. */ | |
#include "FreeRTOS.h" | |
/* Demo includes. */ | |
#include "IntQueueTimer.h" | |
#include "IntQueue.h" | |
/* The frequencies at which the two timers expire are slightly offset to ensure | |
they don't remain synchronised. */ | |
#define tmrTIMER_0_FREQUENCY ( 2000UL ) | |
#define tmrTIMER_1_FREQUENCY ( 2003UL ) | |
/* The interrupts use the FreeRTOS API so must be at or below the max syscall | |
interrupt priority. Counter-intuitively, the higher the numeric number the | |
lower the logical priority. http://www.freertos.org/RTOS-Cortex-M3-M4.html */ | |
#define tmrLOWER_PRIORITY ( configMAX_SYSCALL_INTERRUPT_PRIORITY ) | |
#define tmrHIGHER_PRIORITY ( configMAX_SYSCALL_INTERRUPT_PRIORITY + 1 ) | |
/*-----------------------------------------------------------*/ | |
/* Handlers for the two timer peripherals - two channels are used in the TC0 | |
timer. */ | |
void vT32_0_Handler( void ); | |
void vT32_1_Handler( void ); | |
/*-----------------------------------------------------------*/ | |
void vInitialiseTimerForIntQueueTest( void ) | |
{ | |
/* Configure the timer channels. */ | |
MAP_Timer32_initModule( (uint32_t)TIMER32_0_BASE, TIMER32_PRESCALER_1, TIMER32_32BIT, TIMER32_PERIODIC_MODE ); | |
MAP_Timer32_setCount( (uint32_t)TIMER32_0_BASE, CS_getMCLK() / tmrTIMER_0_FREQUENCY ); | |
MAP_Timer32_enableInterrupt( (uint32_t)TIMER32_0_BASE ); | |
MAP_Timer32_startTimer( (uint32_t)TIMER32_0_BASE, false ); | |
MAP_Interrupt_setPriority( INT_T32_INT1, tmrLOWER_PRIORITY ); | |
MAP_Interrupt_enableInterrupt( INT_T32_INT1 ); | |
MAP_Timer32_initModule( (uint32_t)TIMER32_1_BASE, TIMER32_PRESCALER_1, TIMER32_32BIT, TIMER32_PERIODIC_MODE ); | |
MAP_Timer32_setCount( (uint32_t)TIMER32_1_BASE, CS_getMCLK() / tmrTIMER_1_FREQUENCY ); | |
MAP_Timer32_enableInterrupt( (uint32_t)TIMER32_1_BASE ); | |
MAP_Timer32_startTimer( (uint32_t)TIMER32_1_BASE, false ); | |
MAP_Interrupt_setPriority( INT_T32_INT2, tmrHIGHER_PRIORITY ); | |
MAP_Interrupt_enableInterrupt( INT_T32_INT2 ); | |
} | |
/*-----------------------------------------------------------*/ | |
void vT32_0_Handler( void ) | |
{ | |
MAP_Timer32_clearInterruptFlag( (uint32_t)TIMER32_0_BASE ); | |
portYIELD_FROM_ISR( xFirstTimerHandler() ); | |
} | |
/*-----------------------------------------------------------*/ | |
void vT32_1_Handler( void ) | |
{ | |
MAP_Timer32_clearInterruptFlag( (uint32_t)TIMER32_1_BASE ); | |
portYIELD_FROM_ISR( xSecondTimerHandler() ); | |
} | |