Are analog designs forbidden on GFMPW-1? Not sure what "There is not a supported open source flow for analog design" means.

With sky130, there is a

caravel_analog_user_project

that has 11 pure analog pads and is incorporated into the

caravan

chip (instead of

caravel

). The sky130

caravel

chip has no pure analog pads, but all but 10 of the gpio can be configured to provide an analog i/o (0V-3.3V). gfmpw-1 currently has only digital I/O pads. It is, however, possible to create an analog circuit within gfmpw-1, but all the i/o must be digital.

Er, how can we have analog when "This shuttle will support digital designs using the OpenLane design flow" and "The project must contain a GDSII layout, which must be reproducible from source contained in the project."

@dburnett If your analog circuits are hard macros, you could include the gds for the macro and a xschem schematic.

Aha, good point! I was mentally restricting myself to standard cells.