Custom slicer for demodulation - EFR32
We have troubles with RX_DEMOD_DATA -
Does the data is filled in the data rate or it is oversampled?
If it oversampled what is the Over sampling factor? in addition the eight bits - in what representation is it? 2's complement? unsignd integer?
We would appreciate your fast response,
17 days ago
Custom slicer for demodulation - EFR32 on
Proprietary Wireless Forum
In our application we need to demodulate proprietary constellation. It consist a different slicing than ordinary QPSK with differential coding.
We are using the EFR32 Mighty Gecko MG12
We saw there are two special data sources.
1. RX_DEMOD_DATA - in some references it states that this data is 1B each sample "Before Slicing". Does it means it is the quadrature coordinate after AGC,AFC and phase correction? if yes how does the coordinate represented ?
2. RX_IQDATA_FILTLSB - This allow us to do our proprietary slicing , but does in this mode the IQ samples are after the AGC,AFC, and matched filter? What is the maximal samples per second we can get ?
Is there other option we have'nt mentioned to do a custom slicer application?
53 days ago