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/*
FreeRTOS V8.0.1 - Copyright (C) 2014 Real Time Engineers Ltd.
All rights reserved
VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
***************************************************************************
* *
* FreeRTOS provides completely free yet professionally developed, *
* robust, strictly quality controlled, supported, and cross *
* platform software that has become a de facto standard. *
* *
* Help yourself get started quickly and support the FreeRTOS *
* project by purchasing a FreeRTOS tutorial book, reference *
* manual, or both from: http://www.FreeRTOS.org/Documentation *
* *
* Thank you! *
* *
***************************************************************************
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 from 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?" *
* *
* 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, a DOS
compatible FAT file system, and our tiny thread aware UDP/IP stack.
http://www.OpenRTOS.com - Real Time Engineers ltd license FreeRTOS to High
Integrity Systems to sell under the OpenRTOS brand. Low cost OpenRTOS
licenses offer ticketed support, indemnification and 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 project provides two demo applications. A simple blinky style project,
* and a more comprehensive test and demo application. The
* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is used to select between the two.
* The simply blinky demo is implemented and described in main_blinky.c. The
* more comprehensive test and demo application is implemented and described in
* main_full.c.
*
* This file implements the code that is not demo specific, including the
* hardware setup and FreeRTOS hook functions.
*
*******************************************************************************
* -NOTE- The Win32 port is a simulation (or is that emulation?) only! Do not
* expect to get real time behaviour from the Win32 port or this demo
* application. It is provided as a convenient development and demonstration
* test bed only. This was tested using Windows XP on a dual core laptop.
*
* Windows will not be running the FreeRTOS simulator threads continuously, so
* the timing information in the FreeRTOS+Trace logs have no meaningful units.
* See the documentation page for the Windows simulator for an explanation of
* the slow timing:
* http://www.freertos.org/FreeRTOS-Windows-Simulator-Emulator-for-Visual-Studio-and-Eclipse-MingW.html
* - READ THE WEB DOCUMENTATION FOR THIS PORT FOR MORE INFORMATION ON USING IT -
*******************************************************************************
*
*/
/* Standard includes. */
#include <stdio.h>
#include <stdlib.h>
#include <conio.h>
/* FreeRTOS kernel includes. */
#include "FreeRTOS.h"
#include "task.h"
/* This project provides two demo applications. A simple blinky style project,
and a more comprehensive test and demo application. The
mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is used to select between the two.
The simply blinky demo is implemented and described in main_blinky.c. The more
comprehensive test and demo application is implemented and described in
main_full.c. */
#define mainCREATE_SIMPLE_BLINKY_DEMO_ONLY 1
/*
* main_blinky() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 1.
* main_full() is used when mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is set to 0.
*/
extern void main_blinky( void );
extern void main_full( void );
/* Some of the RTOS hook (callback) functions only need special processing when
the full demo is being used. The simply blinky demo has no special requirements,
so these functions are called from the hook functions defined in this file, but
are defined in main_full.c. */
void vFullDemoTickHookFunction( void );
void vFullDemoIdleFunction( void );
/* Prototypes for the standard FreeRTOS callback/hook functions implemented
within this file. */
void vApplicationMallocFailedHook( void );
void vApplicationIdleHook( void );
void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName );
void vApplicationTickHook( void );
/*
* Writes trace data to a disk file when the trace recording is stopped.
* This function will simply overwrite any trace files that already exist.
*/
static void prvSaveTraceFile( void );
/* The user trace event posted to the trace recording on each tick interrupt.
Note tick events will not appear in the trace recording with regular period
because this project runs in a Windows simulator, and does not therefore
exhibit deterministic behaviour. */
traceLabel xTickTraceUserEvent;
static portBASE_TYPE xTraceRunning = pdTRUE;
/*-----------------------------------------------------------*/
int main( void )
{
/* Initialise the trace recorder and create the label used to post user
events to the trace recording on each tick interrupt. */
vTraceInitTraceData();
xTickTraceUserEvent = xTraceOpenLabel( "tick" );
/* Start the trace recording - the recording is written to a file if
configASSERT() is called. */
printf( "\r\nTrace started. Hit a key to dump trace file to disk (does not work from Eclipse console).\r\n" );
fflush( stdout );
uiTraceStart();
/* The mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is described at the top
of this file. */
#if ( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 )
{
main_blinky();
}
#else
{
main_full();
}
#endif
return 0;
}
/*-----------------------------------------------------------*/
void vApplicationMallocFailedHook( void )
{
/* vApplicationMallocFailedHook() will only be called if
configUSE_MALLOC_FAILED_HOOK is set to 1 in FreeRTOSConfig.h. It is a hook
function that will get called if a call to pvPortMalloc() fails.
pvPortMalloc() is called internally by the kernel whenever a task, queue,
timer or semaphore is created. It is also called by various parts of the
demo application. If heap_1.c or heap_2.c are used, then the size of the
heap available to pvPortMalloc() is defined by configTOTAL_HEAP_SIZE in
FreeRTOSConfig.h, and the xPortGetFreeHeapSize() API function can be used
to query the size of free heap space that remains (although it does not
provide information on how the remaining heap might be fragmented). */
vAssertCalled( __LINE__, __FILE__ );
}
/*-----------------------------------------------------------*/
void vApplicationIdleHook( void )
{
/* vApplicationIdleHook() will only be called if configUSE_IDLE_HOOK is set
to 1 in FreeRTOSConfig.h. It will be called on each iteration of the idle
task. It is essential that code added to this hook function never attempts
to block in any way (for example, call xQueueReceive() with a block time
specified, or call vTaskDelay()). If the application makes use of the
vTaskDelete() API function (as this demo application does) then it is also
important that vApplicationIdleHook() is permitted to return to its calling
function, because it is the responsibility of the idle task to clean up
memory allocated by the kernel to any task that has since been deleted. */
/* Uncomment the following code to allow the trace to be stopped with any
key press. The code is commented out by default as the kbhit() function
interferes with the run time behaviour. */
/*
if( _kbhit() != pdFALSE )
{
if( xTraceRunning == pdTRUE )
{
vTraceStop();
prvSaveTraceFile();
xTraceRunning = pdFALSE;
}
}
*/
#if ( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY != 1 )
{
/* Call the idle task processing used by the full demo. The simple
blinky demo does not use the idle task hook. */
vFullDemoIdleFunction();
}
#endif
}
/*-----------------------------------------------------------*/
void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
{
( void ) pcTaskName;
( void ) pxTask;
/* Run time stack overflow checking is performed if
configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook
function is called if a stack overflow is detected. */
vAssertCalled( __LINE__, __FILE__ );
}
/*-----------------------------------------------------------*/
void vApplicationTickHook( void )
{
/* This function will be called by each tick interrupt if
configUSE_TICK_HOOK is set to 1 in FreeRTOSConfig.h. User code can be
added here, but the tick hook is called from an interrupt context, so
code must not attempt to block, and only the interrupt safe FreeRTOS API
functions can be used (those that end in FromISR()). */
#if ( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY != 1 )
{
vFullDemoTickHookFunction();
}
#endif /* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY */
/* Write a user event to the trace log.
Note tick events will not appear in the trace recording with regular period
because this project runs in a Windows simulator, and does not therefore
exhibit deterministic behaviour. Windows will run the simulator in
bursts. */
vTraceUserEvent( xTickTraceUserEvent );
}
/*-----------------------------------------------------------*/
void vAssertCalled( unsigned long ulLine, const char * const pcFileName )
{
static portBASE_TYPE xPrinted = pdFALSE;
/* Parameters are not used. */
( void ) ulLine;
( void ) pcFileName;
taskDISABLE_INTERRUPTS();
__asm volatile( "int $3" );
/* Stop the trace recording. */
if( xPrinted == pdFALSE )
{
xPrinted = pdTRUE;
if( xTraceRunning == pdTRUE )
{
vTraceStop();
prvSaveTraceFile();
}
}
taskENABLE_INTERRUPTS();
}
/*-----------------------------------------------------------*/
static void prvSaveTraceFile( void )
{
FILE* pxOutputFile;
pxOutputFile = fopen( "Trace.dump", "wb");
if( pxOutputFile != NULL )
{
fwrite( RecorderDataPtr, sizeof( RecorderDataType ), 1, pxOutputFile );
fclose( pxOutputFile );
printf( "\r\nTrace output saved to Trace.dump\r\n" );
}
else
{
printf( "\r\nFailed to create trace dump file\r\n" );
}
}
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