#90 Internal device data in a B source?

[stefan]

Is it possible to use internal device data in a bsource equation?
Like:
~~~
B1 pos_node neg_node V=@dev[param]
~~~

Some user wanted to put in a circuit a non linear resistor (implemented with a bsource) that uses the gm of one of the MOS transistors in the circuit.

Example (assuming @m.xm2.msky130_fd_pr__nfet_01v8[gm] is a valid device node that can be saved in raw file with a save line):

B1 XXX 0 V = @m.xm2.msky130_fd_pr__nfet_01v8[gm]

[stefan]

The above of course is not a resistor, the B source just creates a voltage equal to the gm of a mos transistor. Just to see if it works.
Ngspice does not accept my above attempt.

[Holger Vogt]

I will have to recap the setting up of the B source parse tree.

I guess this feature is not implemented, but have not yet any idea if easily possible.