Hi, I'm trying to test a SX1276 system used as transmitter, with another SX1276 as the receiver.

I set up the receiver and wait for a transmission from the UUT.

After RX is done I read the RegFei registers.

What is the cause of having the RegFei equal zero?

Is that the default value and is it still zero when there is an error such a CRC error for example?

I'm asking this because I was trying to set up a limit of pass if frequency error less than some limit. But if the RegFei is zero when there are issues with the reception this limit would problematic.

I'm a beginner with LoRa and this is my first project. The support is very much appreciated!

Regards,
Alan