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<@U021BTRSZ5H> which variable needs to be seen in ...
# xschem
v
@User which variable needs to be seen in xschemrc file for pdk path ?
p
See for skywater models
It can be seen at last line in xschemrc file
v
It looks fine to me. Can you plz confirm checking in attached screenshot.
p
See the last two lines do have share folder in your home directory
v
Yes, share folder is there in home directory. Attaching netlist also.
p
Can you see the lib. spice tt at the given location?
v
Yes, there is a file by name "sky130.lib.spice" with section tt at this location.
p
Error says it cannot find at that location.. Maybe you again crosscheck if all the variables are set to right location
v
I checked again and found that there is no folder 'spice and file ''sky130_fd_pr__nfet_01v8__tt.corner.spice' as mentioned in first error shown in last screenshot. Can you tell why this file is missing and how to get it ?
folder spice and mentioned .spice file in first error is missing.
p
You need to properly install the pdk
v
PDK was re-installed and now the last error has been removed. Getting message shown in attached screenshot with simulate button still red. Has simulation ended succesfully? Waveform viewer not opening after pressing waves button in xschem.
p
You need to install gaw for viewing waveform by pressing waves button.
sudo apt install libgtk-3-dev build-essential wget http://download.tuxfamily.org/gaw/download/gaw3-20200922.tar.gz tar -xf gaw3-20200922.tar.gz cd gaw3-20200922 ./configure make -j$(nproc) sudo make install
Once you install gaw to see the waveform you should go in simulation menu in xschem and then go in configure tools and select ngspice batch.
v
Thanks Pranav. It is working now. Able to see my first inverter output waveform through open-source flow🙂
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