https://devzone.nordicsemi.com/f/nordic-q-a/8926/software-ack-failed-in-nrf24le1Hi all, I tried to implement a software ACK between two NRF24LE1 devices, but failed. In my tick_interrupt_ISR, I send a frame from device_A to device_B, and I want to wait for the ACK from device_B still in the tick_interrupt_ISR. To the detail,en-USTelligent Community 13Thu, 27 Aug 2015 14:09:52 GMThttps://devzone.nordicsemi.com/thread/32856?ContentTypeID=1Thu, 27 Aug 2015 14:09:52 GMT137ad170-7792-4731-bb38-c0d22fbe4515:84affee7-f230-4f28-ad5c-4c2306c82097Hung Bui<p>@Junma: Could you let me know how you set the priority level with IP1 and IP0 register ? Could you update the question with your full configuration of the interrupt? I tested here and it worked fine.</p><div style="clear:both;"></div>