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Cadence ADE Simulating .spi of Standard Lib using Spectre

tstoll

 Hi -

I have a PDK in which I have all standard cells (inverters, nands,etc.) defned in one common .spi file.
I have standardlib symbols and used them within my analogic schematic for simulation.

I defined on the toplevel global vdd!, gnd!, and also used CDF (VDD netSet vdd!, and VSS netSet gnd!) to be sure that the instantiated inverter has its correct supply and ground voltage.

The .spi standard Lib file I included via the Simulation Files Setup menue (Stimulus File).

It is netlisting and simulating.. but the inverter is not inverting.. the output follows exactly the input.

Any hint on that?

I do not know if that has something to do with it, but at the beginning, I see in the simulation log file following message:

" Unable to compile ahdlcmi library, see input.ahdlSimDB..
" Could not open ahdlcmi module library input.ahdlSimDB.."

I appreciate every comment !!

Cheers,
tOM

Parents
  • Andrew Beckett

    Bit hard to tell without seeing it, but are the pins connected in the right order? In other words, check the instantiation in the netlist produced by ADE against the order in the .SPI definition.

    The ahdlcmi messages are unlikely to be anything to do with this.

    Regards,

    Andrew.

Reply
  • Andrew Beckett

    Bit hard to tell without seeing it, but are the pins connected in the right order? In other words, check the instantiation in the netlist produced by ADE against the order in the .SPI definition.

    The ahdlcmi messages are unlikely to be anything to do with this.

    Regards,

    Andrew.

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