@User is there a way I can select different schematic to be netlisted using TCL variables? I was trying to use different variations of the following syntax:

schematic="cell_name_${mode}"

But nothing was really working. The use case I'm facing right now is that I have inductors in my design. For simulation I want the model to be used in the netlist, for LVS i want a short between input and output as that's what the extraction tool sees. So I am trying to default a TCL

mode

variable to

sim

and then override the variable when doing the LVS netlist generation. I really want to do this with flags applied at a global level rather than having to descend the heirarchy and change the

schematic=

expression for multiple cells. Do you have any tips on how I can achieve this?

Hi, Just to know the context, do you have multiple inductor symbols? if your design contains multiple instances of the same inductor symbol you need to change the

schematic=...

attribute only once in the inductor symbol. Anyway if you think it is useful to add a tcl variable evaluation when parsing the schematic attribute i can add this feature. Currently the schematic attrribute is used as is, without variable expansion.

Yeah, I have multiple different inductors. The other place I'd also like to use it is I have digital created with openlane. I create an xschem cell and in the schematic I just put the netlist in a code section. That makes things all get netliselted correctly for LVS. But it would be useful to use a different schematic for simulation coz ngspice will get swamped with the digital netlist, so a different schematic maybe using xspice primitives or simplified routing or something I can easily simulate to know things are hooked up correctly

Thank you for the explanation. The format you suggested can be implemented (

schematic="cell_name_${mode}"

) however filenames with '$' must have $ escaped to avoid confusion. Will work on that.