image.png

Shridhar Ambady

07/07/2022, 1:18 AM

image.png

Mitch Bailey

07/07/2022, 1:27 AM

I suspect that you have not included the sky130 library.

Shridhar Ambady

07/07/2022, 1:45 AM

I've now included the library and getting this error

Shridhar Ambady

07/07/2022, 1:46 AM

My tt corners file points to these files, but they don't exist on my system

Shridhar Ambady

07/07/2022, 1:46 AM

image.png

Shridhar Ambady

07/07/2022, 1:51 AM

my libs.ref/sky130_fd_pr folder does have a spice folder at all

Mitch Bailey

07/07/2022, 1:54 AM

How did you install the skywater pdk?

Shridhar Ambady

07/07/2022, 2:02 AM

installed all the dependencies like magic and xschem and ngspice and all that first

Shridhar Ambady

07/07/2022, 2:03 AM

then I just cloned the repo and did ./configure, make, and sudo make install

Shridhar Ambady

07/07/2022, 2:03 AM

made sure to use the --enable-sky130-pdk on configure

Shridhar Ambady

07/07/2022, 2:04 AM

and then copied the xschemrc file from the pdk into my working directory

Mitch Bailey

07/07/2022, 3:21 AM

The pdk is installed with the

open_pdks

repohttps://github.com/RTimothyEdwards/open_pdks

Shridhar Ambady

07/07/2022, 3:40 AM

yes, that's the repo I installed

Shridhar Ambady

07/07/2022, 3:40 AM

these are the instructions I went through

Shridhar Ambady

07/07/2022, 3:40 AM

http://web02.gonzaga.edu/faculty/talarico/vlsi/install2.html

Mitch Bailey

07/07/2022, 4:00 AM

So your pdk is at

~/share/pdks

Shridhar Ambady

07/07/2022, 4:03 AM

/usr/local/share/pdks

Shridhar Ambady

07/07/2022, 4:03 AM

I used default install locations for everything

Mitch Bailey

07/07/2022, 4:20 AM

/usr/local/share/pdks/sky130A/libs.ref/sky130_fd_pr/spice

is empty?

Shridhar Ambady

07/07/2022, 4:38 AM

it doesn't exist at all

Shridhar Ambady

07/07/2022, 4:39 AM

I got this error when I did "make" on the open_pdk repo, I'm wondering if its related

Shridhar Ambady

07/07/2022, 4:39 AM

image.png

Mitch Bailey

07/07/2022, 4:52 AM

probably

Stefan Schippers

07/07/2022, 5:12 AM

This error must be resolved before going anywhere further. The 'Error 1/2' message is not of great help. If anything fails, delete the whole open_pdks, reclone again, and try to rebuild again. Ensure you have lot of free diskspace.

Shridhar Ambady

07/07/2022, 5:25 AM

plenty of disk space, ~60GB left

Shridhar Ambady

07/07/2022, 5:26 AM

there's a "sky130A_make.log" file, looking through that for clues

Shridhar Ambady

07/07/2022, 5:30 AM

I keep seeing an error that looks like this:

Shridhar Ambady

07/07/2022, 5:30 AM

Error message output from magic script:

Could not find file 'minimum.tech' in any of these directories:

. $CAD_ROOT/magic/sys $CAD_ROOT/magic/sys/current

Cannot load technology "minimum" for initialization

Mitch Bailey

07/07/2022, 5:37 AM

Could you post your

sky130A_make.log

Shridhar Ambady

07/07/2022, 5:37 AM

I think I may have found the issue, I tried reinstalling magic and saw there was a fatal error when I tried compiling it,

fatal error: GL/glu.h: No such file or directory

Shridhar Ambady

07/07/2022, 5:37 AM

this was fixed by installing libglfw3-dev libgl1-mesa-dev and libglu1-mesa-dev

Shridhar Ambady

07/07/2022, 5:38 AM

im now recompiling open_pdk

Stefan Schippers

07/07/2022, 5:48 AM

Good!, I also got in similar situations, the golden rule is always check the status of every installation before moving further.

Shridhar Ambady

07/07/2022, 11:17 AM

I think I have everything working!

Shridhar Ambady

07/07/2022, 11:17 AM

Successfully able to create schematics in xschem and simulate in ngspice

👍 1

Stefan Schippers

07/07/2022, 11:59 AM

Great! looking forward for some interesting circuits!! 💪

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