void Dummy_IRQHandler(void) { /* Clear the interrupt if necessary. */ Dummy_ClearITPendingBit(); OS_EVENT_SIGNAL_FROM_ISR(xTestSemaphore); }
void Dummy_IRQHandler(void) { long lHigherPriorityTaskWoken = pdFALSE; /* Clear the interrupt if necessary. */ Dummy_ClearITPendingBit(); /* This interrupt does nothing more than demonstrate how to synchronise a task with an interrupt. A semaphore is used for this purpose. Note lHigherPriorityTaskWoken is initialised to zero. */ xSemaphoreGiveFromISR( xTestSemaphore, &lHigherPriorityTaskWoken ); /* If there was a task that was blocked on the semaphore, and giving the semaphore caused the task to unblock, and the unblocked task has a priority higher than the current Running state task (the task that this interrupt interrupted), then lHigherPriorityTaskWoken will have been set to pdTRUE internally within xSemaphoreGiveFromISR(). Passing pdTRUE into the portEND_SWITCHING_ISR() macro will result in a context switch being pended to ensure this interrupt returns directly to the unblocked, higher priority, task. Passing pdFALSE into portEND_SWITCHING_ISR() has no effect. */ portEND_SWITCHING_ISR( lHigherPriorityTaskWoken ); }