I cannot use any kind of inter process communication from ISR. All of these functions cause a lock up on my setup: vTaskNotifyGiveFromISR xQueueSendFromISR xSemaphoreGiveFromISR What can I do to have any kind of synchronization my tasks with interrupts except polling global variables? — Atilla Filiz

I think this is a replication of https://sourceforge.net/p/freertos/discussion/382005/thread/fddfa2aa/ which already has replies.