Hello all As, I am designing the inverter circuit ...
# xschem
v
Hello all As, I am designing the inverter circuit in xschem and trying to generate the netlist by designing it's symbol as ,I need that spice file to generate the layout in magic.But, when I am generating the netlist ,it's showing this error "undriven node :Vout" due to which the waveform is not generating and it's showing no such vector Vout. So, can anyone please tell me that why this error is coming and how to resolve this error ?
s
Can you please attach the following 4 files: Inverter_symbol.sch Inverter_symbol.sch inverter_schematic.sch inverter_schematic.sym I see you are running the netlist from inverter_schematic.sym. This is should be inverter_schematic.sch. This should in prnciple not be a fatal problem, just bad convention. But need to check the schematics in detail.
v
@Stefan Schippers please tell me sir, how to solve this problem ?
s
Hi, @vanshika tanwar, here the corrected schematic. Use the
tb_inverter.sch
as the top level. This instantiates the
inverter_schematic.sym
symbol which has a schematic in
inverter_schematic.sch
@vanshika tanwar The flow is the following. When you create a schematic for an inverter then you create the symbol. Later you start drawing your testbench into an empty schematic. Include the symbol of the inverter by using the '`Insert`' key (or '`i`' key). You were drawing your testbench schematic into the symbol file, this is not the right way.
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