RVE CN command equivalent to PVS

Hi Joren,

I checked with one of my colleagues who knows PVS in more depth than me:

PVS can also output CN.

It depends with following command settings:

  cell_name [ -drc | -erc ] { yes [ -cellspace ] [ -xform ] [ -all ] } | no

  Cell names are output, but coordinates remains in the topcell space.

With cell_name -drc yes –cellspace

  Cell names are output, coordinates are in the cell space.

Other possibilities are:

  cell_name -drc yes -xform

  cell_name -drc yes -all

In the GUI, that option is controlled from the Output Tab:

• Output Errors Hierarchically - Select one of the following three options from the drop down list:
  • On: This is equivalent to cell_name -drc yes -xform. Error markers will be contained in the subcells. The same setting in the rule deck will be overridden
  • Off: This is equivalent to cell_name -drc no. Coordinates of all subcell error markers will refer to the top cell. The same setting in the rule deck will be overridden.
  • Rules Definition: Rule deck setting will be used. This is the default behaviour.

So running from GUI, you need to turn that option ON to get the “CN” lines in the ASCII DRC output.

Regards,

Andrew.

 HI Andrew,

Thanks for your quick response,

 I was able to have a CN value now in the output .db fle

using the : cell_name -drc yes -cellspace -xform

and the output is:

CN plc_x1quad c 1 0 0 1 27060 41195

3340 1490

2828 875

Just a follow up question.

How come that if using "cell_name -drc yes -cellspace" (w/o -xform) the output will be like this:

 output2:

 CN plc_x1quad c 

3340 1490

2828 875

5372 875

4860 1490

and loading it in RVE will have hierarchical result while in PVS the result is flat and the coordinates in the given cellname in CN points to a wrong place since its reading the coordinates in Flat or in top cell.

is theres a way that without using "-xform" the output shown above in output2 will be loaded correctly in PVS just like in RVE?.

Thanks,

Joren

1

Not sure - I suggest you contact customer support (I'd have to spend some time putting together an example, and I don't really have time, given that this is not my main area of expertise).

Regards,

Andrew.