Hierarchy editor - Implication of "stop point" on netlist

That shouldn't happen. Are you definitely running ADE with the config view? Look in the banner of the ADE window and make sure it says that the view name is the config. If you create a config but simulate with the schematic, it won't use anything from the config.

I just tried this (adding a stop point), and the underlying subckt did not get netlisted.

However, since you said that you put the stop point on a particular instance (I first tried it on a particular cell), then you need to make sure you've got all instances of the subckt in question marked as stop points. Otherwise it will continue to expand the hierarchy for one of them and netlist the subckt definition.

Regards,

Andrew.

Andrew,

Thanks for the help. My responses would be:

1)  Yes, I did ensure that config view for the top_design is used.

2) Note that I am trying to do it on an instance basis -- say instance 'my_inst' of subckt definition 'my_subckt'. Cadence HE UG says: "You can specify a stop point on a single instantiation of a cell that prevents the instance from being expanded when the hierarchy is expanded.". So I have absolutely no problem if my_subckt gets expanded (to cater to other instances), but 'my_inst' should probably not point to that my_subct any more. 

3) As per your advice, I tried the stop-point on a cell-basis keeping everything else undisturbed (viewnames to be used, etc.). But there, I face this error:

Netlist Error: Cannot find any info on instance "my_inst" in cell-view "my_lib" "parent_cell_of_my_inst" "schematic"

Netlist Error: Some cell-views used inside this block could not be netlisted in analog context

Look forward to your help.

- Tito 

Point 2. The problem with "probably not point to that my_subct any more" is there is no definition of what it should be netlisted as. There's no point having an instantiation of a block that is not defined somewhere - it will fail in simulation. So you'd have to have a definition somewhere (e.g. in an include file). If it was not well defined what the subckt name would end up being referenced as, you wouldn't know what to do with it. So whilst in theory you can add a stop point on one instance only, I'm not sure how useful that would be in practice.

Point 3. You have to have CDF defined for the cell, so that it knows how to netlist it. Easiest way is to go into the schematic for the block, and do Create->CellView->From Cellview and create the symbol - but do so in "Modify" mode - which means it won't clobber your symbol -  maybe it might add some text onto it but you can delete that. It should recreate the CDF if it was missing though - it's the spectre simInfo that is key here.

Regards,

Andrew.