/* | |
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! | |
*/ | |
/* FreeRTOS includes. */ | |
#include "FreeRTOS.h" | |
/* Standard demo includes. */ | |
#include "IntQueueTimer.h" | |
#include "IntQueue.h" | |
/* Microchip includes. */ | |
#include "MEC14xx/mec14xx_timers.h" | |
#include "MEC14xx/mec14xx_jtvic.h" | |
#include "MEC14xx/mec14xx.h" | |
/* The frequency of the two timers is offset so the time between the timers | |
expiring is not always the same. */ | |
#define timerINTERRUPT0_FREQUENCY ( 2000UL ) | |
#define timerINTERRUPT1_FREQUENCY ( 2221UL ) | |
/* MEC14xx JTVIC external interrupt controller is mapped to M14K closely-coupled | |
peripheral space. */ | |
#define portMMCR_JTVIC_GIRQ23_PRIA *((volatile uint32_t *)(0xBFFFC3F0ul)) | |
/*-----------------------------------------------------------*/ | |
/* These are the C handlers called from the asm wrappers. */ | |
void vT0InterruptHandler( void ); | |
void vT1InterruptHandler( void ); | |
/*-----------------------------------------------------------*/ | |
void vInitialiseTimerForIntQueueTest( void ) | |
{ | |
/* Timer RT is used for the tick interrupt, timer 3 is used for the high | |
frequency interrupt test. This file therefore uses timers 0 and 1. */ | |
uint32_t ulPreload = ( unsigned short ) ( ( configPERIPHERAL_CLOCK_HZ / ( unsigned long ) timerINTERRUPT0_FREQUENCY ) ); | |
btmr_sleep_en( BTMR0_ID, 0 ); | |
btmr_init( BTMR0_ID, BTMR_COUNT_DOWN + BTMR_AUTO_RESTART + BTMR_INT_EN, 0, ulPreload, ulPreload ); | |
btmr_start( BTMR0_ID ); | |
jtvic_clr_source( MEC14xx_GIRQ23_ID, 0 ); | |
portMMCR_JTVIC_GIRQ23_PRIA &= ~( 0x0Ful << 0 ); | |
portMMCR_JTVIC_GIRQ23_PRIA |= ( ( portIPL_TO_CODE( configMAX_SYSCALL_INTERRUPT_PRIORITY ) ) << 0 ); | |
jtvic_en_source( MEC14xx_GIRQ23_ID, 0, pdTRUE ); | |
ulPreload = ( unsigned short ) ( ( configPERIPHERAL_CLOCK_HZ / ( unsigned long ) timerINTERRUPT1_FREQUENCY ) ); | |
btmr_sleep_en( BTMR1_ID, 0 ); | |
btmr_init( BTMR1_ID, BTMR_COUNT_DOWN + BTMR_AUTO_RESTART + BTMR_INT_EN, 0, ulPreload, ulPreload ); | |
btmr_start( BTMR1_ID ); | |
jtvic_clr_source( MEC14xx_GIRQ23_ID, 1 ); | |
portMMCR_JTVIC_GIRQ23_PRIA &= ~( 0x0Ful << 4 ); | |
portMMCR_JTVIC_GIRQ23_PRIA |= ( ( portIPL_TO_CODE( configMAX_SYSCALL_INTERRUPT_PRIORITY ) ) << 4 ); | |
jtvic_en_source( MEC14xx_GIRQ23_ID, 1, pdTRUE ); | |
} | |
/*-----------------------------------------------------------*/ | |
void vT0InterruptHandler( void ) | |
{ | |
/* Disable all interrupts because the source bit is shared with a bit used | |
by the other timer and the high frequency timer test. */ | |
__asm volatile( "di" ); | |
/* Clear the timer interrupt. */ | |
jtvic_clr_source( MEC14xx_GIRQ23_ID, 0 ); | |
__asm volatile( "ei" ); | |
portEND_SWITCHING_ISR( xFirstTimerHandler() ); | |
} | |
/*-----------------------------------------------------------*/ | |
void vT1InterruptHandler( void ) | |
{ | |
/* Disable all interrupts because the source bit is shared with a bit used | |
by the other timer and the high frequency timer test. */ | |
__asm volatile( "di" ); | |
/* Clear the timer interrupt. */ | |
jtvic_clr_source( MEC14xx_GIRQ23_ID, 1 ); | |
__asm volatile( "ei" ); | |
portEND_SWITCHING_ISR( xSecondTimerHandler() ); | |
} | |