Posted on May 06, 2015 at 18:48Hi,
I would like to known if I don't understand something or if there is a bug in cmsis_os.c (STMCube for STM32F429)
1) In osThreadCreate() stacksize in bytes is directly passed to xTaskCreate() but the definition for the
usStackDepth argument is
usStackDepth
The size of the task stack specified as the number of variables the stack can hold - not the number of bytes.
typedef struct os_thread_def {
char *name; ///< Thread name
os_pthread pthread; ///< start address of thread function
osPriority tpriority; ///< initial thread priority
uint32_t instances; ///< maximum number of instances of that thread function
uint32_t stacksize; ///< stack size requirements in bytes; 0 is default stack size
} osThreadDef_t;
osThreadId osThreadCreate (const osThreadDef_t *thread_def, void *argument)
{
TaskHandle_t handle;
if (xTaskCreate((TaskFunction_t)thread_def->pthread,(const portCHAR *)thread_def->name,
thread_def->stacksize, argument, makeFreeRtosPriority(thread_def->tpriority),
&handle) != pdPASS) {
return NULL;
}
return handle;
}
I think the definition of stacksize in os_thread_def must be changed or the code of
osThreadCreate() must be corrected.
