Ejemplo n.º 1
0
/* 
 * Handler for the timer interrupt.  This is the handler that the application
 * defined callback function vApplicationSetupTimerInterrupt() should install.
 */
void vPortTickISR( void *pvUnused )
{
extern void vApplicationClearTimerInterrupt( void );

	/* Ensure the unused parameter does not generate a compiler warning. */
	( void ) pvUnused;

	/* This port uses an application defined callback function to clear the tick
	interrupt because the kernel will run on lots of different MicroBlaze and 
	FPGA configurations - not all of which will have the same timer peripherals 
	defined or available.  An example definition of
	vApplicationClearTimerInterrupt() is provided in the official demo
	application that accompanies this port. */	
	vApplicationClearTimerInterrupt();

	/* Increment the RTOS tick - this might cause a task to unblock. */
	vTaskIncrementTick();

	/* If the preemptive scheduler is being used then a context switch should be
	requested in case incrementing the tick unblocked a task, or a time slice
	should cause another task to enter the Running state. */
	#if configUSE_PREEMPTION == 1
		/* Force vTaskSwitchContext() to be called as the interrupt exits. */
		ulTaskSwitchRequested = 1;
	#endif
}
Ejemplo n.º 2
0
/*
 * Handler for the timer interrupt.  This is the handler that the application
 * defined callback function vApplicationSetupTimerInterrupt() should install.
 */
void vPortTickISR( void *pvUnused )
{
extern void vApplicationClearTimerInterrupt( void );

	/* Ensure the unused parameter does not generate a compiler warning. */
	( void ) pvUnused;

	/* This port uses an application defined callback function to clear the tick
	interrupt because the kernel will run on lots of different MicroBlaze and
	FPGA configurations - not all of which will have the same timer peripherals
	defined or available.  An example definition of
	vApplicationClearTimerInterrupt() is provided in the official demo
	application that accompanies this port. */
	vApplicationClearTimerInterrupt();

	/* Increment the RTOS tick - this might cause a task to unblock. */
	if( xTaskIncrementTick() != pdFALSE )
	{
		/* Force vTaskSwitchContext() to be called as the interrupt exits. */
		ulTaskSwitchRequested = 1;
	}
}