Spice model parameters

[JKB]

I use sometimes model parameters. For example, I have created a library with potentiometers :

.SUBCKT POT 1 2 3 wiper=0.5 Rtot=1k
.param w=limit(wiper, 0, 1)
R0 1 2 {Rtot*(1-w)}
R1 2 3 {Rtot*(w)}
.ENDS

With kicad 4.0.7, it was possible to indicate parameters in value fied (for example POT wiper=0.1 Rtot=50k). WIth 5.0rc2, only POT is written in spice netlist.

Regards,

JKB

[Maciej Suminski (orsonmmz)]

The value field is used directly only for passive components which do not have an explicit Spice model assigned. Once there are Spice_* fields defined they are used for simulation, so it means you can add the desired parameters to Spice_Model field.

[Jeff Young (jeyjey)]

@Orson, do we want to mark this as a Wishlist to possibly support the shorthand syntax in the future, or is this a Won't Fix?

[Maciej Suminski (orsonmmz)]

I think a request for a dialog to define model parameters is fine, though it is not like it is completely broken now. I use parameters in the way described in my previous answer and they work as expected.

[KiCad Janitor (kicad-janitor)]

KiCad bug tracker has moved to Gitlab. This report is now available here: https://gitlab.com/kicad/code/kicad/-/issues/2130