For SKYWATER_MODEL we need to give sky130/libs.tech And For SKYWATER_STDCELLS we need to give sky130/libs.ref Is it right? @User

Why does it start with ~ ?

@User for these two paths you must give these:

set SKYWATER_MODELS ${PDK_ROOT}/${PDK}/libs.tech/ngspice

set SKYWATER_STDCELLS ${PDK_ROOT}/${PDK}/libs.ref/sky130_fd_sc_hd/spice

I assume you have

open_pdks

installed. The

PDK_ROOT

environment variable is assumed to point to the root of the open_pdks, typically:

/usr/local/share/pdk

the

PDK

variable sets the process variant (

sky130A

or

sky130B

). If unset xschem assumes

sky130A

. Xschem tries to find an open_pdks installation and set

PDK_ROOT

automatically if it is found in

/usr/local/share/pdk

or in user's home

${HOME}/share/pdk

. You also can get rid of PDK_ROOT variable and give absolute paths to the above SKYWATER_MODELS and SKYWATER_STDCELLS:

set SKYWATER_MODELS /usr/local/share/pdk/sky130A/libs.tech/ngspice

set SKYWATER_STDCELLS /usr/local/share/pdk/sky130A/libs.ref/sky130_fd_sc_hd/spice

@User do I need to remove ~

yes

@User the same error again

just set the xschemrc to one from pdk. Dont need to avoid it.

IMG_20220324_105227.jpg

again: run xschem with xschemrc from sky130 Also: always show the error and every input you are supplying (like commands and files)

IMG_20220324_105630.jpg

Do: export PDK_ROOT= then run xschem with xschemrc from sky130 supplied. Dont modify any xschem scripts

Open pdk

export PDK_ROOT=/opt/pdk_root xschem --rcfile $PDK_ROOT/sky130A/libs.tech/xschem/xschemrc The export command needs to be set to the path, where the pdk is installed. PDK_ROOT's content:

Wher did you get this armleo_sky130_ip folder

its just the folder with my xschem files

Where did you follow the installation process any sources please let me know

Installation process of what?

Sky130, Xschem, Magic, Ngspice, Netgen

ngspice looks installed. Xschem seems to be working too. For Magic I followed steps to compile and install described on Magic's website. For OpenPDKs I followed the steps for Open_PDKS on GitHub. It contains the sky130 PDK Netgen is also compiled from source, following guide on the website.

IMG_20220324_114201.jpg

You installed the skywater pdk, but you should install open pdks instead