Unable to run linien-server - loading FPGA fail

[yonicon]

Hello,
My RedPitaya is STEMlab 125-14 Z7020
I flashed the RP with a new OS ver. 2.04 build 35 (RedPitaya_OS_2.04-35_stable.img.zip)
I'm trying to use linien version 2.1.0 (linien-2.1.0.exe)
I installed the linien-server (version 2.1) on the RP using pip.
When trying to run the linien-server I get this message and the SSH connection crashes immediately after -

I checked sha256sum of gateware.bin and it is ok.

This seems very much like the problem in
#394

I'd appreciate any help,
Many thanks
Yoni.

[Lightsaver7]

This should be related to the difference in the FPGA image used by STEMlab 125-14 Z7020 (which uses the Zynq 7020 SoC) and a "normal" STEMlab 125-14, which uses Zynq 7010 SoC FPGA. Most likely the FPGA pin definitions would need to be changed in the .xdc file (or a logic added that recognizes the specific board model Linien is running on and then load the correct FPGA version).

[Lightsaver7]

Here is a quick rundown on the different FPGA images used by Red Pitaya board models (check the MODEL build flag):
https://redpitaya.readthedocs.io/en/latest/developerGuide/software/build/fpga/fpga.html#building-process

Check the sdc folder here:
https://github.com/RedPitaya/RedPitaya-FPGA/tree/master/sdc

Zynq 7010 uses the first file (red_pitaya.xdc), while Zynq 7020 boards (with the exception of SIGNALlab 250_12) use the second file (red_pitaya_Z20.xdc).
SIGNALlab uses the constraints in the sdc_250 directory (one level higher).

The problem here is the same as in #394, but there the user has a SIGNALlab 250-12.