R. Timothy Edwards
R. Timothy Edwards
xschem is well supported. For xcircuit, I made some cell libraries but ended up on the problem of how to enforce limits on the parameterized values, which needs some coding...
@holvo : This issue popped up in the SkyWater PDK. I am not overly concerned about ngspice's behavior with respect to this, since it's generally bad practice to overlap subcircuit...
@jarvis-lorry : Openlane needs to read the **technology LEF** file in addition to the standard cell macros. In the open_pdks installation, you'll find, for example, the HD library technology LEF...
@mithro : This issue is related to #114 and probably should be merged, although "adding support for removing the bias pins" is maybe independent of "removing the bias pins"? Anyway,...
@egiacomin : I agree that since the bias pins were added to the LEF files, and this has been largely verified (except for some recent report about required CUT and...
The recommended flow for schematic and layout design using open-source tools is xschem for schematic capture and magic for layout. We are currently improving DRC decks for klayout as well.
@adithyasunil26 : Use the open_pdks installer at https://github.com/RTimothyEdwards/open_pdks/. Assuming a default in stall in $PDK_PATH=/usr/local/share/pdk/sky130A, run magic with the "-rcfile" switch followed by $PDK_PATH/libs.tech/magic/sky130A.magicrc. Run xschem by copying the file...
@d-m-bailey You need to be specific---is this the skywater PDK or open_pdks? Because the SkyWater a2111o_1 cell has a DRC error (undetected by Calibre---never understood why) which I fixed, so...
@d-m-bailey : I realize that's not an easily answered question. I'm trying to figure it out now.
@d-m-bailey : Aaaaand. . . it's not a2111o_1 that was customized, it was a2111oi_0. So I retract all those statements above and will now go staring at the SkyWater cell...