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How to add stimulus in a nanosim-vcs mixed-signal simulation

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wildwood

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vcsad.init

In a mixed-signal simulation , how do we add stimulus in to the design ?shall we add digital/analog stimulus seperately ?

I don't know wheather what i think is right , so if anybody give me some hints , I will appreciate very much .
1.
Verilog-top
vcs files.v +ad=vcsAD.init

we can add digital stimulus in the verilog-top module in " initial " procesure , and in the vcsAD.init file , add this command
choose nanosim -nspi top.subA.spi -nvec file.vec -C cfg

Is it all right ? I did so ,but in the _uod.out file , i can't see the vector stimulus adding into the spice netlist .



2.
SPICE-top
I don't know how to simulate a SPICE-top mixed-signal simulation .

how to write the top spice subckt ?

just initiate the spice netlist and verilog module , and use .connect statement to connect the mixed signal ?

what command should be used when simulation , vcs ?

I can add vector stimulus into spice by adding a command into the vcsAD.init , but how to add digital stimulus ??
 

nanosim vcs

For synopsys nanosim-vcs mixed-signal simulation flow, vcs is the master simulator engine, So whenever you use spice-top or verilog-top, you can
use digital domain stimulus to your DUT.
 

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