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Fix and improve WIN32-MSVC demo in FreeRTOS/Demo. (#891)

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* Fix WIN32-MSVC demo in FreeRTOS/Demo.

* Add comments.

* Fix corechecks

* Re-work trace and keyboard input.

* Remove unneeded line from trcConfig.h

* Fix formatting in trcConfig.h

* Fix heap issues, add FreeRTOS task to simulate keyboard interrupts.

* Update comment on main_blinky.

* Fix spelling.

* Make keyboard input thread block on input.

* Set thread affinity of keyboard input thread to not run on the same core as FreeRTOS.

* Adjust heap regions and total heap size.

* Fix spelling.

Co-authored-by: Jason Carroll <czjaso@amazon.com>
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jasonpcarroll 2022-12-07 10:29:12 -08:00 • committed by GitHub
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11 changed files with 915 additions and 654 deletions
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583
FreeRTOS/Demo/WIN32-MSVC/main.c
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@ -53,33 +53,44 @@
#include <conio.h>
/* Visual studio intrinsics used so the __debugbreak() function is available
should an assert get hit. */
* should an assert get hit. */
#include <intrin.h>
/* FreeRTOS kernel includes. */
#include "FreeRTOS.h"
#include "task.h"
/* FreeRTOS+Trace includes. */
#include "trcRecorder.h"
/* This project provides two demo applications. A simple blinky style demo
application, and a more comprehensive test and demo application. The
mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is used to select between the two.
If mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is 1 then the blinky demo will be built.
The blinky demo is implemented and described in main_blinky.c.
If mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is not 1 then the comprehensive test and
demo application will be built. The comprehensive test and demo application is
implemented and described in main_full.c. */
#define mainCREATE_SIMPLE_BLINKY_DEMO_ONLY 1
* application, and a more comprehensive test and demo application. The
* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY setting is used to select between the two.
*
* If mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is 1 then the blinky demo will be built.
* The blinky demo is implemented and described in main_blinky.c.
*
* If mainCREATE_SIMPLE_BLINKY_DEMO_ONLY is not 1 then the comprehensive test and
* demo application will be built. The comprehensive test and demo application is
* implemented and described in main_full.c. */
#define mainCREATE_SIMPLE_BLINKY_DEMO_ONLY 0
/* This demo uses heap_5.c, and these constants define the sizes of the regions
that make up the total heap. heap_5 is only used for test and example purposes
as this demo could easily create one large heap region instead of multiple
smaller heap regions - in which case heap_4.c would be the more appropriate
choice. See http://www.freertos.org/a00111.html for an explanation. */
#define mainREGION_1_SIZE 8201
#define mainREGION_2_SIZE 31905
#define mainREGION_3_SIZE 7807
* that make up the total heap. heap_5 is only used for test and example purposes
* as this demo could easily create one large heap region instead of multiple
* smaller heap regions - in which case heap_4.c would be the more appropriate
* choice. See http://www.freertos.org/a00111.html for an explanation. */
#define mainREGION_1_SIZE 8201
#define mainREGION_2_SIZE 23905
#define mainREGION_3_SIZE 16807
/* This demo allows for users to perform actions with the keyboard. */
#define mainNO_KEY_PRESS_VALUE -1
#define mainOUTPUT_TRACE_KEY 't'
#define mainKEYBOARD_INTERRUPT_YIELD_MS 200
/* This demo allows to save a trace file. */
#define mainTRACE_FILE_NAME "Trace.dump"
/*-----------------------------------------------------------*/
@ -94,8 +105,8 @@ extern void main_full( void );
* Only the comprehensive demo uses application hook (callback) functions. See
* https://www.FreeRTOS.org/a00016.html for more information.
*/
void vFullDemoTickHookFunction( void );
void vFullDemoIdleFunction( void );
extern void vFullDemoTickHookFunction( void );
extern void vFullDemoIdleFunction( void );
/*
* This demo uses heap_5.c, so start by defining some heap regions. It is not
@ -103,7 +114,7 @@ void vFullDemoIdleFunction( void );
* region. Heap_5 is only used for test and example purposes. See
* https://www.FreeRTOS.org/a00111.html for an explanation.
*/
static void prvInitialiseHeap( void );
static void prvInitialiseHeap( void );
/*
* Prototypes for the standard FreeRTOS application hook (callback) functions
@ -111,10 +122,15 @@ static void prvInitialiseHeap( void );
*/
void vApplicationMallocFailedHook( void );
void vApplicationIdleHook( void );
void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName );
void vApplicationStackOverflowHook( TaskHandle_t pxTask,
char * pcTaskName );
void vApplicationTickHook( void );
void vApplicationGetIdleTaskMemory( StaticTask_t **ppxIdleTaskTCBBuffer, StackType_t **ppxIdleTaskStackBuffer, uint32_t *pulIdleTaskStackSize );
void vApplicationGetTimerTaskMemory( StaticTask_t **ppxTimerTaskTCBBuffer, StackType_t **ppxTimerTaskStackBuffer, uint32_t *pulTimerTaskStackSize );
void vApplicationGetIdleTaskMemory( StaticTask_t ** ppxIdleTaskTCBBuffer,
StackType_t ** ppxIdleTaskStackBuffer,
uint32_t * pulIdleTaskStackSize );
void vApplicationGetTimerTaskMemory( StaticTask_t ** ppxTimerTaskTCBBuffer,
StackType_t ** ppxTimerTaskStackBuffer,
uint32_t * pulTimerTaskStackSize );
/*
* Writes trace data to a disk file when the trace recording is stopped.
@ -122,288 +138,409 @@ void vApplicationGetTimerTaskMemory( StaticTask_t **ppxTimerTaskTCBBuffer, Stack
*/
static void prvSaveTraceFile( void );
/*
* Windows thread function to capture keyboard input from outside of the
* FreeRTOS simulator. This thread passes data safely into the FreeRTOS
* simulator using a stream buffer.
*/
static DWORD WINAPI prvWindowsKeyboardInputThread( void * pvParam );
/*
* FreeRTOS task function that simulates keyboard interrupts by
* periodically polling data coming from the Windows thread
* capturing keyboard input.
*/
static void prvKeyboardInterruptSimulatorTask( void * pvParam );
/*
* Keyboard interrupt handler for the blinky demo.
*/
extern void vBlinkyKeyboardInterruptHandler( int xKeyPressed );
/*-----------------------------------------------------------*/
/* When configSUPPORT_STATIC_ALLOCATION is set to 1 the application writer can
use a callback function to optionally provide the memory required by the idle
and timer tasks. This is the stack that will be used by the timer task. It is
declared here, as a global, so it can be checked by a test that is implemented
in a different file. */
* use a callback function to optionally provide the memory required by the idle
* and timer tasks. This is the stack that will be used by the timer task. It is
* declared here, as a global, so it can be checked by a test that is implemented
* in a different file. */
StackType_t uxTimerTaskStack[ configTIMER_TASK_STACK_DEPTH ];
/* Notes if the trace is running or not. */
static BaseType_t xTraceRunning = pdTRUE;
/* Thread handle for the keyboard input Windows thread. */
static HANDLE xWindowsKeyboardInputThreadHandle = NULL;
/* This stores the last key pressed that has not been handled.
* Keyboard input is retrieved by the prvWindowsKeyboardInputThread
* Windows thread and stored here. This is then read by the idle
* task and handled appropriately. */
static int xKeyPressed = mainNO_KEY_PRESS_VALUE;
/*-----------------------------------------------------------*/
int main( void )
{
/* This demo uses heap_5.c, so start by defining some heap regions. heap_5
is only used for test and example reasons. Heap_4 is more appropriate. See
http://www.freertos.org/a00111.html for an explanation. */
prvInitialiseHeap();
/* This demo uses heap_5.c, so start by defining some heap regions. heap_5
* is only used for test and example reasons. Heap_4 is more appropriate. See
* http://www.freertos.org/a00111.html for an explanation. */
prvInitialiseHeap();
/* Initialise the trace recorder. Use of the trace recorder is optional.
See http://www.FreeRTOS.org/trace for more information. */
vTraceEnable( TRC_START );
/* Initialise the trace recorder. Use of the trace recorder is optional.
* See http://www.FreeRTOS.org/trace for more information. */
vTraceEnable( TRC_START );
/* 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
{
/* Start the trace recording - the recording is written to a file if
configASSERT() is called. */
printf( "\r\nTrace started.\r\nThe trace will be dumped to disk if a call to configASSERT() fails.\r\n" );
printf( "Uncomment the call to kbhit() in this file to also dump trace with a key press.\r\n" );
uiTraceStart();
/* Start the trace recording - the recording is written to a file if
* configASSERT() is called. */
printf(
"Trace started.\r\n"
"The trace will be dumped to the file \"%s\" whenever a call to configASSERT()\r\n"
"fails or the \'%c\' key is pressed.\r\n"
"Note that the trace output uses the ring buffer mode, meaning that the output trace\r\n"
"will only be the most recent data able to fit within the trace recorder buffer.\r\n",
mainTRACE_FILE_NAME, mainOUTPUT_TRACE_KEY );
main_full();
}
#endif
traceSTART();
return 0;
/* Start keyboard input handling thread. */
xWindowsKeyboardInputThreadHandle = CreateThread(
NULL, /* Pointer to thread security attributes. */
0, /* Initial thread stack size, in bytes. */
prvWindowsKeyboardInputThread, /* Pointer to thread function. */
NULL, /* Argument for new thread. */
0, /* Creation flags. */
NULL);
/* Use the cores that are not used by the FreeRTOS tasks. */
SetThreadAffinityMask( xWindowsKeyboardInputThreadHandle, ~0x01u );
/* Start keyboard interrupt simulator task. */
xTaskCreate(
prvKeyboardInterruptSimulatorTask, /* The function that implements the task. */
"KeyboardInterrupt", /* The text name assigned to the task - for debug only as it is not used by the kernel. */
configMINIMAL_STACK_SIZE, /* The size of the stack to allocate to the task. */
NULL, /* The parameter passed to the task - not used in this simple case. */
configMAX_PRIORITIES - 1, /* The priority assigned to the task. The priority is very high as this task simulates an interrupt coming from the keyboard. */
NULL); /* The task handle is not required, so NULL is passed. */
/* 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 /* if ( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 ) */
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, heap_2.c or heap_4.c is being 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). See http://www.freertos.org/a00111.html for more
information. */
vAssertCalled( __LINE__, __FILE__ );
/* 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, heap_2.c or heap_4.c is being 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). See http://www.freertos.org/a00111.html for more
* information. */
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 application tasks make use of the
vTaskDelete() API function to delete themselves 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 deleted itself. */
/* 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 application tasks make use of the
* vTaskDelete() API function to delete themselves 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 deleted itself. */
/* 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
#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 vApplicationStackOverflowHook( TaskHandle_t pxTask,
char * pcTaskName )
{
( void ) pcTaskName;
( void ) pxTask;
( 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. This function is
provided as an example only as stack overflow checking does not function
when running the FreeRTOS Windows port. */
vAssertCalled( __LINE__, __FILE__ );
/* 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. This function is
* provided as an example only as stack overflow checking does not function
* when running the FreeRTOS Windows port. */
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()). */
/* 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 */
#if ( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY != 1 )
{
vFullDemoTickHookFunction();
}
#endif /* mainCREATE_SIMPLE_BLINKY_DEMO_ONLY */
}
/*-----------------------------------------------------------*/
void vApplicationDaemonTaskStartupHook( void )
{
/* This function will be called once only, when the daemon task starts to
execute (sometimes called the timer task). This is useful if the
application includes initialisation code that would benefit from executing
after the scheduler has been started. */
/* This function will be called once only, when the daemon task starts to
* execute (sometimes called the timer task). This is useful if the
* application includes initialisation code that would benefit from executing
* after the scheduler has been started. */
}
/*-----------------------------------------------------------*/
void vAssertCalled( unsigned long ulLine, const char * const pcFileName )
void vAssertCalled( unsigned long ulLine,
const char * const pcFileName )
{
static BaseType_t xPrinted = pdFALSE;
volatile uint32_t ulSetToNonZeroInDebuggerToContinue = 0;
static BaseType_t xPrinted = pdFALSE;
volatile uint32_t ulSetToNonZeroInDebuggerToContinue = 0;
/* Called if an assertion passed to configASSERT() fails. See
http://www.freertos.org/a00110.html#configASSERT for more information. */
/* Called if an assertion passed to configASSERT() fails. See
* http://www.freertos.org/a00110.html#configASSERT for more information. */
/* Parameters are not used. */
( void ) ulLine;
( void ) pcFileName;
/* Parameters are not used. */
( void ) ulLine;
( void ) pcFileName;
printf( "ASSERT! Line %ld, file %s, GetLastError() %ld\r\n", ulLine, pcFileName, GetLastError() );
taskENTER_CRITICAL();
{
printf("ASSERT! Line %ld, file %s, GetLastError() %ld\r\n", ulLine, pcFileName, GetLastError());
taskENTER_CRITICAL();
{
/* Stop the trace recording. */
if( xPrinted == pdFALSE )
{
xPrinted = pdTRUE;
if( xTraceRunning == pdTRUE )
{
vTraceStop();
prvSaveTraceFile();
}
}
/* Stop the trace recording and save the trace. */
vTraceStop();
prvSaveTraceFile();
/* Cause debugger break point if being debugged. */
__debugbreak();
/* Cause debugger break point if being debugged. */
__debugbreak();
/* You can step out of this function to debug the assertion by using
the debugger to set ulSetToNonZeroInDebuggerToContinue to a non-zero
value. */
while( ulSetToNonZeroInDebuggerToContinue == 0 )
{
__asm{ NOP };
__asm{ NOP };
}
}
taskEXIT_CRITICAL();
/* You can step out of this function to debug the assertion by using
* the debugger to set ulSetToNonZeroInDebuggerToContinue to a non-zero
* value. */
while( ulSetToNonZeroInDebuggerToContinue == 0 )
{
__asm {
NOP
};
__asm {
NOP
};
}
/* Re-enable the trace recording. */
vTraceEnable( TRC_START );
}
taskEXIT_CRITICAL();
}
/*-----------------------------------------------------------*/
static void prvSaveTraceFile( void )
{
FILE* pxOutputFile;
FILE * pxOutputFile;
fopen_s( &pxOutputFile, "Trace.dump", "wb");
fopen_s( &pxOutputFile, mainTRACE_FILE_NAME, "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" );
}
if( pxOutputFile != NULL )
{
fwrite( RecorderDataPtr, sizeof( RecorderDataType ), 1, pxOutputFile );
fclose( pxOutputFile );
printf( "\r\nTrace output saved to %s\r\n\r\n", mainTRACE_FILE_NAME );
}
else
{
printf( "\r\nFailed to create trace dump file\r\n\r\n" );
}
}
/*-----------------------------------------------------------*/
static void prvInitialiseHeap( void )
static void prvInitialiseHeap( void )
{
/* The Windows demo could create one large heap region, in which case it would
be appropriate to use heap_4. However, purely for demonstration purposes,
heap_5 is used instead, so start by defining some heap regions. No
initialisation is required when any other heap implementation is used. See
http://www.freertos.org/a00111.html for more information.
* be appropriate to use heap_4. However, purely for demonstration purposes,
* heap_5 is used instead, so start by defining some heap regions. No
* initialisation is required when any other heap implementation is used. See
* http://www.freertos.org/a00111.html for more information.
*
* The xHeapRegions structure requires the regions to be defined in start address
* order, so this just creates one big array, then populates the structure with
* offsets into the array - with gaps in between and messy alignment just for test
* purposes. */
static uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
volatile uint32_t ulAdditionalOffset = 19; /* Just to prevent 'condition is always true' warnings in configASSERT(). */
const HeapRegion_t xHeapRegions[] =
{
/* Start address with dummy offsets Size */
{ ucHeap + 1, mainREGION_1_SIZE },
{ ucHeap + 15 + mainREGION_1_SIZE, mainREGION_2_SIZE },
{ ucHeap + 19 + mainREGION_1_SIZE + mainREGION_2_SIZE, mainREGION_3_SIZE },
{ NULL, 0 }
};
The xHeapRegions structure requires the regions to be defined in start address
order, so this just creates one big array, then populates the structure with
offsets into the array - with gaps in between and messy alignment just for test
purposes. */
static uint8_t ucHeap[ configTOTAL_HEAP_SIZE ];
volatile uint32_t ulAdditionalOffset = 19; /* Just to prevent 'condition is always true' warnings in configASSERT(). */
const HeapRegion_t xHeapRegions[] =
{
/* Start address with dummy offsets Size */
{ ucHeap + 1, mainREGION_1_SIZE },
{ ucHeap + 15 + mainREGION_1_SIZE, mainREGION_2_SIZE },
{ ucHeap + 19 + mainREGION_1_SIZE + mainREGION_2_SIZE, mainREGION_3_SIZE },
{ NULL, 0 }
};
/* Sanity check that the sizes and offsets defined actually fit into the
* array. */
configASSERT( ( ulAdditionalOffset + mainREGION_1_SIZE + mainREGION_2_SIZE + mainREGION_3_SIZE ) < configTOTAL_HEAP_SIZE );
/* Sanity check that the sizes and offsets defined actually fit into the
array. */
configASSERT( ( ulAdditionalOffset + mainREGION_1_SIZE + mainREGION_2_SIZE + mainREGION_3_SIZE ) < configTOTAL_HEAP_SIZE );
/* Prevent compiler warnings when configASSERT() is not defined. */
( void ) ulAdditionalOffset;
/* Prevent compiler warnings when configASSERT() is not defined. */
( void ) ulAdditionalOffset;
vPortDefineHeapRegions( xHeapRegions );
vPortDefineHeapRegions( xHeapRegions );
}
/*-----------------------------------------------------------*/
/* configUSE_STATIC_ALLOCATION is set to 1, so the application must provide an
implementation of vApplicationGetIdleTaskMemory() to provide the memory that is
used by the Idle task. */
void vApplicationGetIdleTaskMemory( StaticTask_t **ppxIdleTaskTCBBuffer, StackType_t **ppxIdleTaskStackBuffer, uint32_t *pulIdleTaskStackSize )
* implementation of vApplicationGetIdleTaskMemory() to provide the memory that is
* used by the Idle task. */
void vApplicationGetIdleTaskMemory( StaticTask_t ** ppxIdleTaskTCBBuffer,
StackType_t ** ppxIdleTaskStackBuffer,
uint32_t * pulIdleTaskStackSize )
{
/* If the buffers to be provided to the Idle task are declared inside this
function then they must be declared static - otherwise they will be allocated on
the stack and so not exists after this function exits. */
static StaticTask_t xIdleTaskTCB;
static StackType_t uxIdleTaskStack[ configMINIMAL_STACK_SIZE ];
* function then they must be declared static - otherwise they will be allocated on
* the stack and so not exists after this function exits. */
static StaticTask_t xIdleTaskTCB;
static StackType_t uxIdleTaskStack[ configMINIMAL_STACK_SIZE ];
/* Pass out a pointer to the StaticTask_t structure in which the Idle task's
state will be stored. */
*ppxIdleTaskTCBBuffer = &xIdleTaskTCB;
/* Pass out a pointer to the StaticTask_t structure in which the Idle task's
* state will be stored. */
*ppxIdleTaskTCBBuffer = &xIdleTaskTCB;
/* Pass out the array that will be used as the Idle task's stack. */
*ppxIdleTaskStackBuffer = uxIdleTaskStack;
/* Pass out the array that will be used as the Idle task's stack. */
*ppxIdleTaskStackBuffer = uxIdleTaskStack;
/* Pass out the size of the array pointed to by *ppxIdleTaskStackBuffer.
Note that, as the array is necessarily of type StackType_t,
configMINIMAL_STACK_SIZE is specified in words, not bytes. */
*pulIdleTaskStackSize = configMINIMAL_STACK_SIZE;
/* Pass out the size of the array pointed to by *ppxIdleTaskStackBuffer.
* Note that, as the array is necessarily of type StackType_t,
* configMINIMAL_STACK_SIZE is specified in words, not bytes. */
*pulIdleTaskStackSize = configMINIMAL_STACK_SIZE;
}
/*-----------------------------------------------------------*/
/* configUSE_STATIC_ALLOCATION and configUSE_TIMERS are both set to 1, so the
application must provide an implementation of vApplicationGetTimerTaskMemory()
to provide the memory that is used by the Timer service task. */
void vApplicationGetTimerTaskMemory( StaticTask_t **ppxTimerTaskTCBBuffer, StackType_t **ppxTimerTaskStackBuffer, uint32_t *pulTimerTaskStackSize )
* application must provide an implementation of vApplicationGetTimerTaskMemory()
* to provide the memory that is used by the Timer service task. */
void vApplicationGetTimerTaskMemory( StaticTask_t ** ppxTimerTaskTCBBuffer,
StackType_t ** ppxTimerTaskStackBuffer,
uint32_t * pulTimerTaskStackSize )
{
/* If the buffers to be provided to the Timer task are declared inside this
function then they must be declared static - otherwise they will be allocated on
the stack and so not exists after this function exits. */
static StaticTask_t xTimerTaskTCB;
* function then they must be declared static - otherwise they will be allocated on
* the stack and so not exists after this function exits. */
static StaticTask_t xTimerTaskTCB;
/* Pass out a pointer to the StaticTask_t structure in which the Timer
task's state will be stored. */
*ppxTimerTaskTCBBuffer = &xTimerTaskTCB;
/* Pass out a pointer to the StaticTask_t structure in which the Timer
* task's state will be stored. */
*ppxTimerTaskTCBBuffer = &xTimerTaskTCB;
/* Pass out the array that will be used as the Timer task's stack. */
*ppxTimerTaskStackBuffer = uxTimerTaskStack;
/* Pass out the array that will be used as the Timer task's stack. */
*ppxTimerTaskStackBuffer = uxTimerTaskStack;
/* Pass out the size of the array pointed to by *ppxTimerTaskStackBuffer.
Note that, as the array is necessarily of type StackType_t,
configMINIMAL_STACK_SIZE is specified in words, not bytes. */
*pulTimerTaskStackSize = configTIMER_TASK_STACK_DEPTH;
/* Pass out the size of the array pointed to by *ppxTimerTaskStackBuffer.
* Note that, as the array is necessarily of type StackType_t,
* configMINIMAL_STACK_SIZE is specified in words, not bytes. */
*pulTimerTaskStackSize = configTIMER_TASK_STACK_DEPTH;
}
/*-----------------------------------------------------------*/
/*
* Windows thread function to capture keyboard input from outside of the
* FreeRTOS simulator. This thread passes data into the simulator using
* an integer.
*/
static DWORD WINAPI prvWindowsKeyboardInputThread( void * pvParam )
{
( void ) pvParam;
for ( ; ; )
{
xKeyPressed = _getch();
}
}
/*-----------------------------------------------------------*/
static void prvKeyboardInterruptSimulatorTask( void * pvParam )
{
( void ) pvParam;
for ( ; ; )
{
/* Handle keyboard input. */
switch ( xKeyPressed )
{
case mainNO_KEY_PRESS_VALUE:
break;
case mainOUTPUT_TRACE_KEY:
/* Saving the trace file requires Windows system calls, so enter a critical
section to prevent deadlock or errors resulting from calling a Windows
system call from within the FreeRTOS simulator. */
taskENTER_CRITICAL();
{
vTraceStop();
prvSaveTraceFile();
vTraceEnable(TRC_START);
}
taskEXIT_CRITICAL();
break;
default:
#if ( mainCREATE_SIMPLE_BLINKY_DEMO_ONLY == 1 )
{
/* Call the keyboard interrupt handler for the blinky demo. */
vBlinkyKeyboardInterruptHandler(xKeyPressed);
}
#endif
break;
}
/* Clear the handled key press. */
xKeyPressed = mainNO_KEY_PRESS_VALUE;
/* Yield to allow other tasks to run. */
vTaskDelay( pdMS_TO_TICKS( mainKEYBOARD_INTERRUPT_YIELD_MS ) );
}
}
/* The below code is used by the trace recorder for timing. */
static uint32_t ulEntryTime = 0;
void vTraceTimerReset( void )
{
ulEntryTime = xTaskGetTickCount();
}
uint32_t uiTraceTimerGetFrequency( void )
{
return configTICK_RATE_HZ;
}
uint32_t uiTraceTimerGetValue( void )
{
return( xTaskGetTickCount() - ulEntryTime );
}