/* FreeRTOS V8.2.0rc1 - Copyright (C) 2014 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 1 tab == 4 spaces! *************************************************************************** * * * Having a problem? Start by reading the FAQ "My application does * * not run, what could be wrong?". Have you defined configASSERT()? * * * * http://www.FreeRTOS.org/FAQHelp.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 * * * *************************************************************************** *************************************************************************** * * * Investing in training allows your team to be as productive as * * possible as early as possible, lowering your overall development * * cost, and enabling you to bring a more robust product to market * * earlier than would otherwise be possible. Richard Barry is both * * the architect and key author of FreeRTOS, and so also the world's * * leading authority on what is the world's most popular real time * * kernel for deeply embedded MCU designs. Obtaining your training * * from Richard ensures your team will gain directly from his in-depth * * product knowledge and years of usage experience. Contact Real Time * * Engineers Ltd to enquire about the FreeRTOS Masterclass, presented * * by Richard Barry: http://www.FreeRTOS.org/contact * * *************************************************************************** *************************************************************************** * * * You are receiving this top quality software for free. Please play * * fair and reciprocate by reporting any suspected issues and * * participating in the community forum: * * http://www.FreeRTOS.org/support * * * * Thank you! * * * *************************************************************************** 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.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 contains the non-portable and therefore RX62N 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 #define tmrTIMER_0_1_FREQUENCY ( 2000UL ) #define tmrTIMER_2_3_FREQUENCY ( 2001UL ) /* Handlers for the two timers used. */ __interrupt void vT0_1InterruptHandler( void ); __interrupt void vT2_3InterruptHandler( void ); void vInitialiseTimerForIntQueueTest( void ) { /* Ensure interrupts do not start until full configuration is complete. */ portENTER_CRITICAL(); { /* 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. */ IEN( TMR0, CMIA0 ) = 1; IEN( TMR2, CMIA2 ) = 1; /* Set the timer interrupts to be above the kernel. The interrupts are assigned different priorities so they nest with each other. */ IPR( TMR0, CMIA0 ) = configMAX_SYSCALL_INTERRUPT_PRIORITY - 1; IPR( TMR2, CMIA2 ) = ( configMAX_SYSCALL_INTERRUPT_PRIORITY - 2 ); } portEXIT_CRITICAL(); /* Ensure the interrupts are clear as they are edge detected. */ IR( TMR0, CMIA0 ) = 0; IR( TMR2, CMIA2 ) = 0; } /*-----------------------------------------------------------*/ #pragma vector = VECT_TMR0_CMIA0 __interrupt void vT0_1InterruptHandler( void ) { __enable_interrupt(); portYIELD_FROM_ISR( xFirstTimerHandler() ); } /*-----------------------------------------------------------*/ #pragma vector = VECT_TMR2_CMIA2 __interrupt void vT2_3InterruptHandler( void ) { __enable_interrupt(); portYIELD_FROM_ISR( xSecondTimerHandler() ); }