Stats

  • Locked Locked
  • Replies 4
  • Subscribers 143
  • Views 2604
  • Members are here 0
This discussion has been locked.
You can no longer post new replies to this discussion. If you have a question you can start a new discussion

symbols of my pcell nmos/pmos transistors

fuelectronics

Dear all, 

I created my required pcell layouts of the pmos/nmos transistors, but i also need to produce the symbols for them.

So i easily copy the standard symbols from "analogLib" library to my own library.

When I try to simulate my schematic using these two symbols, the spectre simulator complains :

Error found by spectre during hierarchy flattening.
    ERROR (CMI-2116): M0: Too few terminals given (0 < 4).

I CHECK the schmatic netlist and found there are NO terminals for my transistors.

Do you have any good idea to solve this error ? 

Thanks

  • Andrew Beckett

    Did you also copy the cell property bag (data.dm in IC61, prop.xx in IC51)? This contains the CDF for the cell. Also, did you copy the spectre (stopping view) for the transistors too?

    Having fixed this, you may need to do a netlist->recreate.

    Regards,

    Andrew.

  • fuelectronics

     Yes, i copy all of them and recreate the netlist, but the transistors do not have their terminals (s,d and g) in the netlist. 

     

     

  • Andrew Beckett

    Can you tar up your example and attach it (using the Options tab when replying) so that I can take a look?

    Regards,

    Andrew.

  • fuelectronics

     Thanks, the problem is solved by defining the simulator (in CDF form) for the transistors.

Community Guidelines

The Cadence Design Communities support Cadence users and technologists interacting to exchange ideas, news, technical information, and best practices to solve problems and get the most from Cadence technology. The community is open to everyone, and to provide the most value, we require participants to follow our Community Guidelines that facilitate a quality exchange of ideas and information. By accessing, contributing, using or downloading any materials from the site, you agree to be bound by the full Community Guidelines.