/* | |
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" ); | |
} | |
} |