Hi,

I am working on a custom component OPA320 op amp model from TI. The file from TI is in *.tsm format, so I had to convert it to *.cir so that LTSpice can read it.

I placed the OPA320.cir file in the sub folder
and made a symbol named OPA320.asy in the sym folder

However, after inserting spice derivative .include OPA320.cir in the schematic and tried to run it, it gave me this result:


Error: .include filename missing
Circuit: * C:\Program Files\LTC\LTspiceIV\TestingOPA320.asc

Fatal Error: Unknown subcircuit called in:
xu1 n001 0 n002 n004 0 opa320

I don't know how to fix it, and I've followed every single detail I can find on the web on how to create a custom component.

Thank you

 

Hi geekprincess,

Without seeing inside your files I'll take a guess...

Inside your symbol you need to ensure the "Value" line is set to: OPA320

Right-click on the symbol, then right-click on the Value line and type in OPA320.

Also the Prefix must be: X

Also, ensure the pinout order in the symbol matches what the subcircuit has.

Good Luck,
Ifixit