Hello,
Under a sample library, if I edit the cds.lib add tsmc13rf, when launching virtuoso & again it prompts me that many display packets are found. To address this I merged the different display.drf into a big one in the sample library, overwriting its original display.drf.
But when launching virtuoso & again, although the display looks good, at various steps it prompts me with messages like changed layer.
In the ultimate, which display.drf is being used is dictated by settings in .cdsinit/.cdsenv. Although one can change CSF (search file mechanism) to make it go through different .cdsinit/.cdsenv, or just manually edit .cdsinit/.cdsenv, I wonder different technology files might not be able to coexist.
- Because different tech libs used different layer stack, via size, chemistry, different DIVA rules, perhaps it is just not recommend to use different tech in the same virtuoso session? Please confirm this.
- If there is lots of legacy design, and one wants to be able to quickly adapt it to different foundries (TSMC/SMIC/global foundries/MOSIS), is there any tool?
- Would OA (openaccess) be of any help here? Does Virtuoso by default use OA format or Cadence’s own format?
G