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Ordered connection in AMS netlist

Finn

I am simulating a very simple circuit using AMS designer. The circuit has a subcircuit AAA which is generated by ADS. I first created schematic view for AAA, where there are only pins without any connections. I then generated symbol view for it and saved it as spectre view also. In AMS designer, I added the path to the subcircuit netlist to analog model. It's fine when I run design prep. But when I run simulation, it reports an error saying:

ncelab: *E,SPPBYN (****/verilog.vams,17|68): Named port connections for analog primitives are not supported.

I checked the AMS netlist. AAA is indeed netlisted using named connection. Can anyone tell me how to tell AMS to netlist this block using ordered connection? Or is it caused by any other possible things?

Parents
  • Hi Ramkumar,

    Thanks a lot for your reply. It solves the problem!

    I am using Hierarchy Editor. It seems I must remove the subckt definition from analog models  otherwise the netlister still give the same error.

    Also another strange happened as I played around. If I have “spectre” in my view list, I will get the messages below:

    Ncelab: *W,CUNOUN: Cannot find any unit under libname:AAA:spectre in the design libraries.

    Ncelab: *E,CUCFUN: instance “I49” of the unit AAA is unresolved in …..

    It seems the netlister or the elaborater ignores the source file and still tries to use the spectre view according to the view list. I have to remove “spectre” from the view list. Is there any explanation?

    By the way, does ams netlister respect what I have in the CDF? I played a little with CDF of AAA, but it so far doesn’t help.
Reply
  • Hi Ramkumar,

    Thanks a lot for your reply. It solves the problem!

    I am using Hierarchy Editor. It seems I must remove the subckt definition from analog models  otherwise the netlister still give the same error.

    Also another strange happened as I played around. If I have “spectre” in my view list, I will get the messages below:

    Ncelab: *W,CUNOUN: Cannot find any unit under libname:AAA:spectre in the design libraries.

    Ncelab: *E,CUCFUN: instance “I49” of the unit AAA is unresolved in …..

    It seems the netlister or the elaborater ignores the source file and still tries to use the spectre view according to the view list. I have to remove “spectre” from the view list. Is there any explanation?

    By the way, does ams netlister respect what I have in the CDF? I played a little with CDF of AAA, but it so far doesn’t help.
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