RE: How can I get interrupts from the RADIO?

Ole Morten — Fri, 15 Nov 2013 10:57:05 GMT

In addition to enabling an interrupt in the NVIC, you must also set which events in a peripheral that should generate interrupts. This is done in the INTEN register, accessible through the -SET and -CLR aliases. To for example make the READY- and ADDRESS-events generate interrupts, you'd do this in your init:


void init(void)
{
    NRF_RADIO->INTENSET = RADIO_INTENSET_READY_Enabled << RADIO_INTENSET_READY_Pos | 
                          RADIO_INTENSET_ADDRESS_Enabled << RADIO_INTENSET_ADDRESS_Pos;
    
	NVIC_SetPriority(RADIO_IRQn, 1);
	NVIC_ClearPendingIRQ(RADIO_IRQn);
	NVIC_EnableIRQ(RADIO_IRQn);
}

Be aware that you can also use the SHORTS register to directly connect an event with a task in the same peripheral.