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[/] [openrisc/] [trunk/] [rtos/] [freertos-6.1.1/] [Demo/] [RX600_RX62N-RDK_IAR/] [main-blinky.c] - Blame information for rev 615

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1 585 jeremybenn
/*
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    FreeRTOS V6.1.1 - Copyright (C) 2011 Real Time Engineers Ltd.
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    ***************************************************************************
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    *                                                                         *
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    * If you are:                                                             *
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    *                                                                         *
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    *    + New to FreeRTOS,                                                   *
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    *    + Wanting to learn FreeRTOS or multitasking in general quickly       *
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    *    + Looking for basic training,                                        *
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    *    + Wanting to improve your FreeRTOS skills and productivity           *
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    *                                                                         *
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    * then take a look at the FreeRTOS books - available as PDF or paperback  *
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    *                                                                         *
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    *        "Using the FreeRTOS Real Time Kernel - a Practical Guide"        *
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    *                  http://www.FreeRTOS.org/Documentation                  *
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    *                                                                         *
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    * A pdf reference manual is also available.  Both are usually delivered   *
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    * to your inbox within 20 minutes to two hours when purchased between 8am *
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    * and 8pm GMT (although please allow up to 24 hours in case of            *
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    * exceptional circumstances).  Thank you for your support!                *
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    *                                                                         *
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    ***************************************************************************
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    This file is part of the FreeRTOS distribution.
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    FreeRTOS is free software; you can redistribute it and/or modify it under
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    the terms of the GNU General Public License (version 2) as published by the
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    Free Software Foundation AND MODIFIED BY the FreeRTOS exception.
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    ***NOTE*** The exception to the GPL is included to allow you to distribute
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    a combined work that includes FreeRTOS without being obliged to provide the
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    source code for proprietary components outside of the FreeRTOS kernel.
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    FreeRTOS is distributed in the hope that it will be useful, but WITHOUT
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    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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    more details. You should have received a copy of the GNU General Public
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    License and the FreeRTOS license exception along with FreeRTOS; if not it
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    can be viewed here: http://www.freertos.org/a00114.html and also obtained
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    by writing to Richard Barry, contact details for whom are available on the
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    FreeRTOS WEB site.
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    1 tab == 4 spaces!
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    http://www.FreeRTOS.org - Documentation, latest information, license and
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    contact details.
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    http://www.SafeRTOS.com - A version that is certified for use in safety
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    critical systems.
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    http://www.OpenRTOS.com - Commercial support, development, porting,
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    licensing and training services.
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*/
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/*
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 * This is a very simple demo that creates two tasks and one queue.  One task
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 * (the queue receive task) blocks on the queue to wait for data to arrive,
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 * toggling an LED each time '100' is received.  The other task (the queue send
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 * task) repeatedly blocks for a fixed period before sending '100' to the queue
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 * (causing the first task to toggle the LED).
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 *
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 * For a much more complete and complex example select either the Debug or
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 * Debug_with_optimisation build configurations within the Embedded Workbench
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 * IDE.
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*/
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/* Hardware specific includes. */
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#include <iorx62n.h>
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/* Kernel includes. */
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#include "FreeRTOS.h"
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#include "task.h"
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#include "queue.h"
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/* Demo includes. */
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#include "partest.h"
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/* Priorities at which the tasks are created. */
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#define configQUEUE_RECEIVE_TASK_PRIORITY       ( tskIDLE_PRIORITY + 1 )
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#define configQUEUE_SEND_TASK_PRIORITY          ( tskIDLE_PRIORITY + 2 )
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/* The rate at which data is sent to the queue, specified in milliseconds. */
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#define mainQUEUE_SEND_FREQUENCY_MS                     ( 500 / portTICK_RATE_MS )
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/* The number of items the queue can hold.  This is 1 as the receive task
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will remove items as they are added so the send task should always find the
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queue empty. */
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#define mainQUEUE_LENGTH                                        ( 1 )
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/*
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 * The tasks as defined at the top of this file.
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 */
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static void prvQueueReceiveTask( void *pvParameters );
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static void prvQueueSendTask( void *pvParameters );
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/* The queue used by both tasks. */
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static xQueueHandle xQueue = NULL;
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/* This variable is not used by this simple Blinky example.  It is defined
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purely to allow the project to link as it is used by the full project. */
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volatile unsigned long ulHighFrequencyTickCount = 0UL;
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/*-----------------------------------------------------------*/
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void main(void)
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{
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extern void HardwareSetup( void );
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        /* Renesas provided CPU configuration routine.  The clocks are configured in
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        here. */
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        HardwareSetup();
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        /* Create the queue. */
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        xQueue = xQueueCreate( mainQUEUE_LENGTH, sizeof( unsigned long ) );
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        if( xQueue != NULL )
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        {
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                /* Start the two tasks as described at the top of this file. */
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                xTaskCreate( prvQueueReceiveTask, "Rx", configMINIMAL_STACK_SIZE, NULL, configQUEUE_RECEIVE_TASK_PRIORITY, NULL );
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                xTaskCreate( prvQueueSendTask, "TX", configMINIMAL_STACK_SIZE, NULL, configQUEUE_SEND_TASK_PRIORITY, NULL );
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                /* Start the tasks running. */
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                vTaskStartScheduler();
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        }
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        /* If all is well we will never reach here as the scheduler will now be
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        running.  If we do reach here then it is likely that there was insufficient
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        heap available for the idle task to be created. */
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        for( ;; );
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}
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/*-----------------------------------------------------------*/
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static void prvQueueSendTask( void *pvParameters )
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{
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portTickType xNextWakeTime;
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const unsigned long ulValueToSend = 100UL;
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        /* Initialise xNextWakeTime - this only needs to be done once. */
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        xNextWakeTime = xTaskGetTickCount();
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        for( ;; )
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        {
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                /* Place this task in the blocked state until it is time to run again.
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                The block state is specified in ticks, the constant used converts ticks
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                to ms. */
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                vTaskDelayUntil( &xNextWakeTime, mainQUEUE_SEND_FREQUENCY_MS );
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                /* Send to the queue - causing the queue receive task to flash its LED.  0
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                is used so the send does not block - it shouldn't need to as the queue
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                should always be empty here. */
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                xQueueSend( xQueue, &ulValueToSend, 0 );
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        }
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}
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/*-----------------------------------------------------------*/
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static void prvQueueReceiveTask( void *pvParameters )
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{
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unsigned long ulReceivedValue;
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        for( ;; )
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        {
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                /* Wait until something arives in the queue - this will block
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                indefinitely provided INCLUDE_vTaskSuspend is set to 1 in
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                FreeRTOSConfig.h. */
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                xQueueReceive( xQueue, &ulReceivedValue, portMAX_DELAY );
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                /*  To get here something must have arrived, but is it the expected
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                value?  If it is, toggle the LED. */
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                if( ulReceivedValue == 100UL )
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                {
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                        vParTestToggleLED( 0 );
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                }
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        }
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}
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/*-----------------------------------------------------------*/
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void vApplicationSetupTimerInterrupt( void )
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{
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        /* Enable compare match timer 0. */
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        MSTP( CMT0 ) = 0;
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        /* Interrupt on compare match. */
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        CMT0.CMCR.BIT.CMIE = 1;
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        /* Set the compare match value. */
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        CMT0.CMCOR = ( unsigned short ) ( ( ( configPERIPHERAL_CLOCK_HZ / configTICK_RATE_HZ ) -1 ) / 8 );
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        /* Divide the PCLK by 8. */
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        CMT0.CMCR.BIT.CKS = 0;
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        /* Enable the interrupt... */
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        _IEN( _CMT0_CMI0 ) = 1;
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        /* ...and set its priority to the application defined kernel priority. */
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        _IPR( _CMT0_CMI0 ) = configKERNEL_INTERRUPT_PRIORITY;
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        /* Start the timer. */
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        CMT.CMSTR0.BIT.STR0 = 1;
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}
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/*-----------------------------------------------------------*/
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/* This function is explained by the comments above its prototype at the top
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of this file. */
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void vApplicationMallocFailedHook( void )
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{
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        for( ;; );
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}
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/*-----------------------------------------------------------*/
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/* This function is explained by the comments above its prototype at the top
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of this file. */
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void vApplicationStackOverflowHook( xTaskHandle *pxTask, signed char *pcTaskName )
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{
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        for( ;; );
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}
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/*-----------------------------------------------------------*/
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/* This function is explained by the comments above its prototype at the top
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of this file. */
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void vApplicationIdleHook( void )
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{
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        /* Just to prevent the variable getting optimised away. */
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        ( void ) ulHighFrequencyTickCount;
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}
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/*-----------------------------------------------------------*/
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/* The following two functions are here just to allow all three build
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configurations to use the same vector table.  They are not used in this
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demo, but linker errors will result if they are not defined.  They can
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be ignored. */
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void vT0_1InterruptHandler( void ) {}
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void vT2_3InterruptHandler( void ) {}

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