frequently asked questions on ST S2-LP Sub-1Ghz transceiver

[Philippe SIMONNET]

Hi,

here is a post for wireless community (Sub-1Ghz solutions) to answer many frequently asked questions and good practices using ST S2-LP transceiver.

please find attached document to get additional information on this perfect Radio chipset.

Thanks

Philippe

[Cezar]

@Philippe SIMONNET Can you link this document to the product's page?

[Philippe SIMONNET]

Hi Cezar,

wiki page is done, should be quickly available for community (under approval)

Thanks

Philippe

[Andrew Neil]

@Philippe SIMONNET maybe pin this thread ?

[RenzoPosega]

Dear Mr. Simonnet,

We are currently using the newer STM32WL33 (M0+MRSubG) for a receiver-only application, and given that the transmitter is continuously transmitting (inserting stuffing bytes between well-formatted packets), we had to adapt the HAL code to a good extent. 

I found this document and read with much attention the S2-LP recommendations.

Are this document still applicable (and to which extent) to the STM32WL33?

In particular, STM32WL33 has the "AFC3" register, which has no direct equivalent in S2-LP. 

Thanks in advance, 

Renzo Posega

[Philippe SIMONNET]

Hi Renzo,

S2-LP recommendations are more or less applicable to WL3x radio, even if :

- WL3x is RF SoC / S2-LP transceiver

- there are WL3x radio improvements, so register changes happen

regarding AFC, I can give you recommendations if you tell me Radio configuration you have to use (modulation, packet mode/direct mode, ...)

or you can also rich me entering support request here Online Support

(please mention my name, to route ticket to me as fast as possible)

thanks

Philippe