vnegnev
commented
2 years ago Hi Feiyang,
Unfortunately we stopped supporting the RP-125, so the latest developments will only work on the RP-122. This was for several reasons:
- there wasn't much interest from the main members of the consortium to support both devices
- an RP-122 is only a few hundred $ more, but offers a bigger FPGA + more pins, which makes it easier to develop for in the future once we add capabilities like multi-device sync etc
- we don't need to test two sets of hardware, build two sets of FPGA bitstreams etc, so the debugging process is easier
- the software (in particular the rounding and ramp-calculation code) would need to be adapted to two different clock frequencies
However, it wouldn't take much to get it running I think. To start with, you won't be able to use the newest FPGA images on the RP-125, and would need to build your own using Vivado. You'd also need to handle the different pinouts in the FPGA project and software.
I can have a look in a few weeks' time and prepare a 'roadmap' for you, if you're interested in forking the project and giving it a try, but honestly unless you've got a fair amount of FPGA + embedded software knowledge, I think the quickest/easiest way for you to proceed is to get an RP-122 - sorry :)
FeiyangLou
Hello Vlad: I am a student from China learning MRI, and I found OCRA very useful, so I bought an RP-125, then I found your work more specific in details, so I am currently trying to run marcos on RP-125. I followed the steps in wiki starting from "Installing the latest FPGA firmware and server" and successfully ran the server(version 1.0.5), but when running test_server.py there were lots of errors. It seems that versions of client and server don't match, I wonder is it because the server is not developed for RP-125, or I chose the wrong branch for the client? I tried both devel and flocra branch of marcos_extra in setting FPGA and server, and the master/devel/flocra branch of marcos_client(too confusing). Best regards, Feiyang Lou