Hi All, I am using the open PDK sky130 tech file for magic which I have linked to my install path using ln -s, When I invoke #magic with #sky130 (magic -T sky130) I get quite a few warnings (Picture attached) Magic does have access to sky130 when I try to layout my designs but I keep seeing a repetition of these pink warnings at most of the steps which are really annoying. Any ideas on how to fix this? #ieee-sscs-dc-22

sky130.tech

is the tech file base name used by open_pdks and is not a tech file, but a template tech file that is run through a pre-processor to get the actual tech files

sky130A.tech

and

sky130B.tech

. You should not use the

-T

switch on the command line, but should use the

-rcfile

switch with the startup script (e.g.,

sky130A.magicrc

).

Thank you so much Tim, However I am not getting the steps that I should do, I do have the default installation in /usr/local magiand I believe I should point to the sky sky130.magicrc which exist in the open_pdk/sky130/magic, but I do not know how! I have tried running using

magic -rcfile sky130A.magicrc

but magic opens on default minimum technology and when I choose sky130 in techmanager (I do not have sky130A in tech manager, just sky 130 and sk130gds) I see all the pink warnings again. Previously I have followed this one and this one which does not seem to be correct based on your comment.

The first of those links is pretty thorough, although it contains a number of errors. Make sure you follow the instructions to build the sky130 PDK from open_pdks. The installation will have the structure

$PDK_ROOT/sky130A/libs.tech/magic/

and you can find the correct techfile

sky130A.tech

and startup script

sky130A.magicrc

there.