How to achieve 500kbps datarate with S2LP ??? testing with S2LP GUI not working

[LMora.1]

Hi Everyone

I can't achieve the 500kbps using the following setup, which according to the S2LP datasheet is possible:

HW Setup used for the test:

main boards;

• STM32L073 Nucleo-64 board MB1136 Rev. C

Radio boards:

• X-Nucleo S2868A1

FW loaded into Main boards:

• I managed it to upgraded the Main FW boards with the S2LP DK SW version 2.3.1, so I can use the S2LP app to write and read the S2LP radio device

The boards are placed barely 10cm one from other

The first test using the default init setting of S2LP DK SW is successful, 10 of 10 packets from Tx board reach the Rx board using the "Transmission Test" menu

As I switch from default datarate to 125 ksps datarate in both boards with the following radio settings:

• 4gfsk1 modulation in two boards
• 125 ksps data rate in two boards (which should be 500kbps according to selected modulation)
• Freq 868Mhz

The receiver is not able to receive any of the packets transmitted at 125ksps by the Tx board.

Did anyione experienced the same problem with this or similar test setup??

Thanks in advance!