I got my chips around a week ago, but was able to begin testing only now. Currently I have some issues in my user project which I'm trying to overcome. Meanwhile I could confirm that Caravel is fully functional (flash reading, program execution, UART and user WB) at least in core voltage range 3.3-7V. GF180 seems to be very durable process!

Hi, Egor How much of your “Ophelia eFPGA” design is functioning right now? I’m specifically interested in Wishbone integration.

Hi, Alexander! Wishbone interface for basic FPGA registers works, but shift-registers for FPGA config loading have quite a lot of hold violations arising from the error in SDC which was ported hastily from SKY130. Currently I'm experimenting with FPGA config taking these violations into account. Also I'm investigating if something could be done with the lack of power connections on eFuse block.

Thanks! Do you have a blog or something where you share your experience?

Currently no, but if I'll have some success, I'm going to share it on Github.

спасибо! ;)