Hey everyone, are there instructions somewhere for how to generate a whole-chip GDS? (Instead of just user project area) I am mainly interested in generating an image of the whole chip with my project visible. If there was a way to download the GDS from a tapeout job on the Efabless Galaxy Desktop that would work too...

Maybe

make ship

for caravel or

make truck

for caravan. Taped out chips are at

<https://foss-eda-tools.googlesource.com/third_party/shuttle/>

I tried

make truck

, in the caravel repo, the script just says

Failure to read entire subtree of the cell.

And then caravan.gds is not written. I can't find any indication which cell is causing the problem. Before running, I manually replaced the original mag/user_analog_project_wrapper.mag with my own. Is that how I am supposed to insert my design?

If you just want the full-chip image, you can open the gds file on efabless portal after run the tapeout job

@User: The message itself

Failure to read entire subtree. . .

comes from magic, on a "def write" command, when there are cells in the layout that it cannot find. That could be due to references inside of

analog_user_project_wrapper.mag

.

make ship

is supposed to be done in the user project directory, with

caravel

as a subdirectory. It should pick up the user project wrapper from its existing location in the user project repository; you should not need to move it.

So is this the instructions? 1. Start in project directory. 2. run

make install CARAVEL_LITE=0

to install caravel. 3. run

make truck

to build analog project. I tried, but it just writes an apparently empty gds file at

gds/caravan.gds

There is a part of the process when done for the final chip assembly that first copies those files from the caravel repository to the user project repository. These files are modified when setting user defaults for the GPIO and setting the user ID. There is a "make user ID" script and a "set user defaults" script that are supposed to be run that do the copying. I would guess that something has been done in "make ship" to ensure that those copies have been made even when you aren't running those scripts. It does sound like something that should be raised in the issue tracker.

Yes! I added

make set_user_id

and

make gpio_defaults

and then everything worked without edits. Maybe those targets should be dependences for ship and truck.

Yes, that should be raised as an issue because it should not be the case that when a user runs "make ship" or "make truck", the process fails.

Okay! Created issue 54 in Caravel