Reading RSSI while not expecting a packet

[Michael]

I want to read the RSSI in an nRF51822 even though I'm not expecting to receive any packets… In short, I want to scan through every channel and read the RSSI on that channel regardless of if anything is transmitting.

Hence, I should not use the short from matching an address to start the RSSI since I do not expect an address match.

I'm using a short between the READY event and the START task, can I use the READY event to trig the RSSISTART task through the PPI? Or is trigging the RSSISTART task at the same time as the START task too soon and thereby a bad idea?

[Håkon Alseth]

Hi,

As long as the radio is in receive mode and has been started, there should be no issue starting and reading RSSI values. You can set the READY event to fire the radio interrupt, then start the task / read RSSI / disable. Since there's no event triggered when setting TASKS_START, you cannot automate this properly with the PPI.

Best regards Håkon