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/*
FreeRTOS V7.4.0 - Copyright (C) 2013 Real Time Engineers Ltd.
FEATURES AND PORTS ARE ADDED TO FREERTOS ALL THE TIME. PLEASE VISIT
http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
***************************************************************************
* *
* FreeRTOS tutorial books are available in pdf and paperback. *
* Complete, revised, and edited pdf reference manuals are also *
* available. *
* *
* Purchasing FreeRTOS documentation will not only help you, by *
* ensuring you get running as quickly as possible and with an *
* in-depth knowledge of how to use FreeRTOS, it will also help *
* the FreeRTOS project to continue with its mission of providing *
* professional grade, cross platform, de facto standard solutions *
* for microcontrollers - completely free of charge! *
* *
* >>> See http://www.FreeRTOS.org/Documentation for details. <<< *
* *
* Thank you for using FreeRTOS, and thank you for your support! *
* *
***************************************************************************
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. See the GNU General Public License for more
details. You should have received a copy of the GNU General Public License
and the FreeRTOS license exception along with FreeRTOS; if not itcan be
viewed here: http://www.freertos.org/a00114.html and also obtained by
writing to Real Time Engineers Ltd., contact details for whom are available
on the FreeRTOS WEB site.
1 tab == 4 spaces!
***************************************************************************
* *
* Having a problem? Start by reading the FAQ "My application does *
* not run, what could be wrong?" *
* *
* http://www.FreeRTOS.org/FAQHelp.html *
* *
***************************************************************************
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, and our new
fully thread aware and reentrant UDP/IP stack.
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
Integrity Systems, who sell the code with commercial support,
indemnification and middleware, under the OpenRTOS brand.
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.
*/
/*
* This is a very simple demo that creates two tasks and one queue. One task
* (the queue receive task) blocks on the queue to wait for data to arrive,
* toggling an LED each time '100' is received. The other task (the queue send
* task) repeatedly blocks for a fixed period before sending '100' to the queue
* (causing the first task to toggle the LED).
*
* For a much more complete and complex example select either the Debug or
* Debug_with_optimisation build configurations within the HEW IDE.
*/
/* Hardware specific includes. */
#include "iodefine.h"
/* Kernel includes. */
#include "FreeRTOS.h"
#include "task.h"
#include "queue.h"
/* Demo includes. */
#include "ParTest.h"
/* Priorities at which the tasks are created. */
#define configQUEUE_RECEIVE_TASK_PRIORITY ( tskIDLE_PRIORITY + 2 )
#define configQUEUE_SEND_TASK_PRIORITY ( tskIDLE_PRIORITY + 1 )
/* The rate at which data is sent to the queue, specified in milliseconds. */
#define mainQUEUE_SEND_FREQUENCY_MS ( 500 / portTICK_RATE_MS )
/* The number of items the queue can hold. This is 1 as the receive task
will remove items as they are added so the send task should always find the
queue empty. */
#define mainQUEUE_LENGTH ( 1 )
/*
* The tasks as defined at the top of this file.
*/
static void prvQueueReceiveTask( void *pvParameters );
static void prvQueueSendTask( void *pvParameters );
/* The queue used by both tasks. */
static xQueueHandle xQueue = NULL;
/*-----------------------------------------------------------*/
int main(void)
{
extern void HardwareSetup( void );
/* Renesas provided CPU configuration routine. The clocks are configured in
here. */
HardwareSetup();
/* Turn all LEDs off. */
vParTestInitialise();
/* Create the queue. */
xQueue = xQueueCreate( mainQUEUE_LENGTH, sizeof( unsigned long ) );
if( xQueue != NULL )
{
/* Start the two tasks as described at the top of this file. */
xTaskCreate( prvQueueReceiveTask, ( signed char * ) "Rx", configMINIMAL_STACK_SIZE, NULL, configQUEUE_RECEIVE_TASK_PRIORITY, NULL );
xTaskCreate( prvQueueSendTask, ( signed char * ) "TX", configMINIMAL_STACK_SIZE, NULL, configQUEUE_SEND_TASK_PRIORITY, NULL );
/* Start the tasks running. */
vTaskStartScheduler();
}
/* If all is well we will never reach here as the scheduler will now be
running. If we do reach here then it is likely that there was insufficient
heap available for the idle task to be created. */
for( ;; );
}
/*-----------------------------------------------------------*/
static void prvQueueSendTask( void *pvParameters )
{
portTickType xNextWakeTime;
const unsigned long ulValueToSend = 100UL;
/* Initialise xNextWakeTime - this only needs to be done once. */
xNextWakeTime = xTaskGetTickCount();
for( ;; )
{
/* Place this task in the blocked state until it is time to run again.
The block state is specified in ticks, the constant used converts ticks
to ms. */
vTaskDelayUntil( &xNextWakeTime, mainQUEUE_SEND_FREQUENCY_MS );
/* Send to the queue - causing the queue receive task to flash its LED. 0
is used so the send does not block - it shouldn't need to as the queue
should always be empty here. */
xQueueSend( xQueue, &ulValueToSend, 0 );
}
}
/*-----------------------------------------------------------*/
static void prvQueueReceiveTask( void *pvParameters )
{
unsigned long ulReceivedValue;
for( ;; )
{
/* Wait until something arives in the queue - this will block
indefinitely provided INCLUDE_vTaskSuspend is set to 1 in
FreeRTOSConfig.h. */
xQueueReceive( xQueue, &ulReceivedValue, portMAX_DELAY );
/* To get here something must have arrived, but is it the expected
value? If it is, toggle the LED. */
if( ulReceivedValue == 100UL )
{
vParTestToggleLED( 0 );
}
}
}
/*-----------------------------------------------------------*/
void vApplicationSetupTimerInterrupt( void )
{
/* Enable compare match timer 0. */
MSTP( CMT0 ) = 0;
/* Interrupt on compare match. */
CMT0.CMCR.BIT.CMIE = 1;
/* Set the compare match value. */
CMT0.CMCOR = ( unsigned short ) ( ( ( configPERIPHERAL_CLOCK_HZ / configTICK_RATE_HZ ) -1 ) / 8 );
/* Divide the PCLK by 8. */
CMT0.CMCR.BIT.CKS = 0;
/* Enable the interrupt... */
_IEN( _CMT0_CMI0 ) = 1;
/* ...and set its priority to the application defined kernel priority. */
_IPR( _CMT0_CMI0 ) = configKERNEL_INTERRUPT_PRIORITY;
/* Start the timer. */
CMT.CMSTR0.BIT.STR0 = 1;
}
/*-----------------------------------------------------------*/
/* This function is explained by the comments above its prototype at the top
of this file. */
void vApplicationMallocFailedHook( void )
{
for( ;; );
}
/*-----------------------------------------------------------*/
/* This function is explained by the comments above its prototype at the top
of this file. */
void vApplicationStackOverflowHook( xTaskHandle pxTask, signed char *pcTaskName )
{
for( ;; );
}
/*-----------------------------------------------------------*/
/* This function is explained by the comments above its prototype at the top
of this file. */
void vApplicationIdleHook( void )
{
}
/*-----------------------------------------------------------*/
/* The following four functions are here just to allow all three build
configurations to use the same vector table. They are not used in this
demo, but linker errors will result if they are not defined. They can
be ignored. */
void vT0_1_ISR_Handler( void ) {}
void vT2_3_ISR_Handler( void ) {}
void vEMAC_ISR_Handler( void ) {}
void vTimer2_ISR_Handler( void ) {}
volatile unsigned long ulHighFrequencyTickCount = 0;
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