You can generate an svdb for CCI with nxf file when you only have a layout.gds file and no source netlist, for when the nxf is needed for some preliminary StarRC flow setups.
While this is not a final version of the nxf (you have to have your real source file for it to be a true cross reference file), you can generate a preliminary svdb for CCI with an nxf file, using only a layout.gds file, and a rules file.
You cannot generate an nxf file without a source netlist. You can, however, create a usable dummy source netlist and Calibre will create an svdb for CCI, and also an nxf file.
- Place MASK SVDB DIRECTORY svdb QUERY CCI in your rules file.
- In your rules file, set the SOURCE PATH to "dummy.spi"
- On the command line, “touch” dummy.spi (creates an empty file)
- $MGC_HOME/bin/calibre calibre –spice “layout.spi” rules
This should create the CCI SVDB and the nxf file if you have the rules set up correctly.