Hello. Please tell me about GDS generation in caravel_user_project_analog. Is the generation of

/caravel_user_project_analog/gds/user_analog_project_wrapper.gds

done using Openlane? I would like to reproduce it first with a sample circuit according to the description in the following page, but I don't know how to do it. https://github.com/efabless/caravel_user_project_analog/blob/main/docs/source/index.rst Sorry for the rudimentary question, but I would appreciate it if you could help me.

You could copy

caravel_user_project/openlane/Makefile

to

caravel_user_project_analog/openlane/Makefile

and use openlane to place and route your analog macros, but you’ll probably want to manually modify the path widths and power connections later. One the other hand, since analog projects often use non standard path widths, you can copy

caravel/gds/user_analog_project_wrapper_empty.gds

to

gds/user_analog_project_wrapper.gds

and manually do the pin to macro wiring.

Thank you for your instruction. I now have a better understanding.