current through inherited connections

[chava]

Hi,

I have a circuit with sub-blocks whose VDD and GND are specified with
inherited connections. I want to measure GND current from each of these
blocks(not just the total). I do not know how to specify such a
measurement in ADE or Ocean. Did anybody face this situation? Any help
appreciated.

Regards,
chava.

 

[John Gianni]

Chava wrote:

I have a circuit with sub-blocks whose VDD and GND are specified with
inherited connections. I want to measure GND current from each of these
blocks(not just the total). I do not know how to specify such a
measurement in ADE or Ocean. Did anybody face this situation?
Any help appreciated.

You can check to see if this express topick is covered in the updated
Inherited Connections Tutorial.

This Customer tutorial is available for download on Sourcelink,
complete with a sample design kit with sample designs using inherited
connections, multiple power and ground supplies, explicit and implicit
inheritence, net expressions, etc.

Here is the link for Cadence Customers.
http://sourcelink.cadence.com/docs/files/Tutorials/inheritedconnectiontutorial.html

Let us know if that serves your purpose or not.

If it doesn't serve your purpose, request an update there's a feedback
link or use the normal support process). The goal is to continue to
improve that Cadence inherited connections tutorial to contain the
working examples Customers really need to see.

Good luck,
John Gianni
--
Absolutely nothing I state here is prior sanctioned by my employer.

 

[John Gianni]

Sorry for the typos in the prior posting (I was hurrying to a meeting
and wanted to get you the answer).

Here is what the Inherited Connections Tutorial covers.

Inherited connections are an extension to the connectivity model that
allow you to create signals hierarchically and to override their names
for selected branches of a design hierarchy.

This flexibility allows you to design:
* Parameterized power and ground signals
* Overridable substrate connections
* Multiple power supplies for a design
* Learn the difference between implicit and explicit inherited
connections and when to use each
* *New* Interaction with the verification environment (ASSURA LVS)
or with parasitic resimulation
* *New* Inherited Connection: DCME and Verilog-A

Download the version 3.0 tutorial database and the "VirtuosoŽ
Inherited Connections Flow Guide" manual to learn more about using
inherited connections with Cadence tools. The manual contains
illustrations and step-by-step instructions that show how inherited
connections let you selectively override signals in designs created
with the VirtuosoŽ Schematic Editor, and how those connections are
available to other Cadence tools across the design flow.

 

[Andrew Beckett]

On 7 Mar 2006 08:02:05 -0800, "chava" <cchava@gmail.com> wrote:

Hi,

I have a circuit with sub-blocks whose VDD and GND are specified with
inherited connections. I want to measure GND current from each of these
blocks(not just the total). I do not know how to specify such a
measurement in ADE or Ocean. Did anybody face this situation? Any help
appreciated.

Regards,
chava.

There's a PCR enhancement for this:

PCR: 397541
Title: Would like to be able to select current through inh conn

The only way to do it right now is to put save statements in an include file,
referencing the terminal number of the hierarchical instance name, and then
include that - you'd then have to look at the results via the results browser.

Andrew.

 

Den mĂĽndag 20 mars 2006 kl. 16:47:49 UTC+1 skrev Andrew Beckett:

On 7 Mar 2006 08:02:05 -0800, "chava" <cchava@gmail.com> wrote:

Hi,

I have a circuit with sub-blocks whose VDD and GND are specified with
inherited connections. I want to measure GND current from each of these
blocks(not just the total). I do not know how to specify such a
measurement in ADE or Ocean. Did anybody face this situation? Any help
appreciated.

Regards,
chava.

There's a PCR enhancement for this:

PCR: 397541
Title: Would like to be able to select current through inh conn

The only way to do it right now is to put save statements in an include file,
referencing the terminal number of the hierarchical instance name, and then
include that - you'd then have to look at the results via the results browser.

Andrew.

Hi,

do anyone know if the PCR was implemented. I have this problem in the latest version of ADE+spectre.

David Astrom