Acess ADC data from a STM32WBxx front end radio

ALope.1 · ‎2022-08-21

Hello! I was wondering if it's possible to access some more raw RF data from your STM32WBxx product. I would like to have access to some I/Q data before those be converted into digital BLE packets. I thought a good first step could be to have access to those ADC values (in the figure below). Is that possible?

Remi QUINTIN · ‎2022-08-21

Unfortunately not. The RF block is controlled by the wireless stack running on the M0+ core and no such low level data is transferred to the application running on the M4 core.

The only information you can get from the RF block is the RSSI that you can get via the advertising data.

ALope.1 · ‎2022-08-22

Thank you so much for the quick answer! One last question: do you know if some STM32 RF product has this kind of I/Q data available? I was trying to analyse this kind of data from some conventional RF system (as Bluetooth is, for example). Thank you in advance 🙂

Remi QUINTIN · ‎2022-08-22

No I am not aware of any of our products offering such capability.