/*
FreeRTOS V6.0.0 - Copyright (C) 2009 Real Time Engineers Ltd.
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 exception 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 it
can be viewed here: http://www.freertos.org/a00114.html and also obtained
by writing to Richard Barry, contact details for whom are available on the
FreeRTOS WEB site.
1 tab == 4 spaces!
http://www.FreeRTOS.org - Documentation, latest information, license and
contact details.
http://www.SafeRTOS.com - A version that is certified for use in safety
critical systems.
http://www.OpenRTOS.com - Commercial support, development, porting,
licensing and training services.
*/
/* FreeRTOS.org includes. */
#include "FreeRTOS.h"
#include "task.h"
#include <stdatomic.h>
/* Demo includes. */
#include "basic_io.h"
/* The task function. */
void vTaskFunction( void *pvParameters );
/* A variable that is incremented by the idle task hook function. */
/* default: 1 */
#if 1
/* non atomic - default */
static unsigned long ulIdleCycleCount = 0UL;
int GlobalVar;
#else
/* atomic */
static atomic_ulong ulIdleCycleCount = 0UL;
atomic_int GlobalVar;
#endif
/* Define the strings that will be passed in as the task parameters. These are
defined const and off the stack to ensure they remain valid when the tasks are
executing. */
const char *pcTextForTask1 = "Task 1 is running, ulIdleCycleCount = ";
const char *pcTextForTask2 = "Task 2 is running, ulIdleCycleCount = ";
/*-----------------------------------------------------------*/
int main( void )
{
GlobalVar |= 0x01;
/* Create the first task at priority 1... */
xTaskCreate( vTaskFunction, "Task 1", 240, (void*)pcTextForTask1, 1, NULL );
/* ... and the second task at priority 2. The priority is the second to
last parameter. */
xTaskCreate( vTaskFunction, "Task 2", 240, (void*)pcTextForTask2, 2, NULL );
/* Start the scheduler so our tasks start executing. */
vTaskStartScheduler();
for( ;; );
return 0;
}
/*-----------------------------------------------------------*/
void vTaskFunction( void *pvParameters )
{
char *pcTaskName;
/* The string to print out is passed in via the parameter. Cast this to a
character pointer. */
pcTaskName = ( char * ) pvParameters;
/* As per most tasks, this task is implemented in an infinite loop. */
for( ;; )
{
/* Print out the name of this task AND the number of times ulIdleCycleCount
has been incremented. */
vPrintStringAndNumber( pcTaskName, ulIdleCycleCount );
/* Delay for a period. This time we use a call to vTaskDelay() which
puts the task into the Blocked state until the delay period has expired.
The delay period is specified in 'ticks'. */
vTaskDelay( 250 / portTICK_RATE_MS );
}
}
/*-----------------------------------------------------------*/
/* Idle hook functions MUST be called vApplicationIdleHook(), take no parameters,
and return void. */
void vApplicationIdleHook( void )
{
/* This hook function does nothing but increment a counter. */
ulIdleCycleCount++;
}
/*-----------------------------------------------------------*/
void vApplicationMallocFailedHook( void )
{
/* This function will only be called if an API call to create a task, queue
or semaphore fails because there is too little heap RAM remaining. */
for( ;; );
}
/*-----------------------------------------------------------*/
void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
{
/* This function will only be called if a task overflows its stack. Note
that stack overflow checking does slow down the context switch
implementation. */
for( ;; );
}
/*-----------------------------------------------------------*/
void vApplicationTickHook( void )
{
/* This example does not use the tick hook to perform any processing. */
}
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