Bug in OrCAD Crapture

J

Jim Thompson

Guest
In OrCAD Crapture, wiring as below...



----.---------------> GND
__|__
---
-

Wiring from a ground symbol to a port name, the "zero" node effect is
lost, giving "floating node" errors and all kinds of nonsensical
grief.

Cured by inserting a zero-volt voltage source:

----.---------(=)-----> GND
__|__
---
-

I have a small "(=)" symbol which netlists as a zero-volt voltage
source that I use to make node-name-to-node-name connections without
losing the uniqueness of each name.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
| |
| America: Land of the Free, Because of the Brave |
| |
| Due to excessive spam, googlegroups, UAR & AIOE are blocked! |
 
Jim Thompson wrote:
In OrCAD Crapture, wiring as below...



----.---------------> GND
__|__
---
-

Wiring from a ground symbol to a port name, the "zero" node effect is
lost, giving "floating node" errors and all kinds of nonsensical
grief.

Cured by inserting a zero-volt voltage source:

----.---------(=)-----> GND
__|__
---
-

I have a small "(=)" symbol which netlists as a zero-volt voltage
source that I use to make node-name-to-node-name connections without
losing the uniqueness of each name.
Click to expand...
You mean OrCad can't even do that anymore?

----. .-------> GND PORT
__|__ __|__
--- ---
- -

<gasp>

Was no problem with SDT.

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
 
On Mon, 07 Jul 2008 10:44:37 -0700, Joerg
<notthisjoergsch@removethispacbell.net> wrote:

Jim Thompson wrote:
In OrCAD Crapture, wiring as below...



----.---------------> GND
__|__
---
-

Wiring from a ground symbol to a port name, the "zero" node effect is
lost, giving "floating node" errors and all kinds of nonsensical
grief.

Cured by inserting a zero-volt voltage source:

----.---------(=)-----> GND
__|__
---
-

I have a small "(=)" symbol which netlists as a zero-volt voltage
source that I use to make node-name-to-node-name connections without
losing the uniqueness of each name.


You mean OrCad can't even do that anymore?

----. .-------> GND PORT
__|__ __|__
--- ---
- -

gasp

Was no problem with SDT.
Click to expand...
Not a problem with PSpice Schematics either. Only caught it when I
converted a PSpice Schematic to OrCAD Crapture... saved by Charlie
Edmondson's insight... Thanks, Charlie!

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

It's what you learn, after you know it all, that counts.

Due to excessive spam, gmail, googlegroups, UAR, AIOE are blocked!
 
On Mon, 07 Jul 2008 11:08:36 -0700, Jim Thompson
<To-Email-Use-The-Envelope-Icon@My-Web-Site.com> wrote:

On Mon, 07 Jul 2008 10:44:37 -0700, Joerg
notthisjoergsch@removethispacbell.net> wrote:

Jim Thompson wrote:
In OrCAD Crapture, wiring as below...



----.---------------> GND
__|__
---
-

Wiring from a ground symbol to a port name, the "zero" node effect is
lost, giving "floating node" errors and all kinds of nonsensical
grief.

Cured by inserting a zero-volt voltage source:

----.---------(=)-----> GND
__|__
---
-

I have a small "(=)" symbol which netlists as a zero-volt voltage
source that I use to make node-name-to-node-name connections without
losing the uniqueness of each name.


You mean OrCad can't even do that anymore?

----. .-------> GND PORT
__|__ __|__
--- ---
- -

gasp

Was no problem with SDT.

Not a problem with PSpice Schematics either. Only caught it when I
converted a PSpice Schematic to OrCAD Crapture... saved by Charlie
Edmondson's insight... Thanks, Charlie!

...Jim Thompson
No problem.
Click to expand...

The problem is so bad in ConceptHDL that they included the symbol to
do that - connect two different named nets. In Capture, the only
place you really need it is for power and ground nets, where you can't
tolerate the name changes...

Charlie
www.edmondsonengineereing.com
 
On Mon, 07 Jul 2008 18:48:43 GMT, Charlie E. <edmondson@ieee.org>
wrote:

On Mon, 07 Jul 2008 11:08:36 -0700, Jim Thompson
To-Email-Use-The-Envelope-Icon@My-Web-Site.com> wrote:


On Mon, 07 Jul 2008 10:44:37 -0700, Joerg
notthisjoergsch@removethispacbell.net> wrote:

Jim Thompson wrote:
In OrCAD Crapture, wiring as below...



----.---------------> GND
__|__
---
-

Wiring from a ground symbol to a port name, the "zero" node effect is
lost, giving "floating node" errors and all kinds of nonsensical
grief.

Cured by inserting a zero-volt voltage source:

----.---------(=)-----> GND
__|__
---
-

I have a small "(=)" symbol which netlists as a zero-volt voltage
source that I use to make node-name-to-node-name connections without
losing the uniqueness of each name.


You mean OrCad can't even do that anymore?

----. .-------> GND PORT
__|__ __|__
--- ---
- -

gasp

Was no problem with SDT.

Not a problem with PSpice Schematics either. Only caught it when I
converted a PSpice Schematic to OrCAD Crapture... saved by Charlie
Edmondson's insight... Thanks, Charlie!

...Jim Thompson
No problem.

The problem is so bad in ConceptHDL that they included the symbol to
do that - connect two different named nets. In Capture, the only
place you really need it is for power and ground nets, where you can't
tolerate the name changes...

Charlie
www.edmondsonengineereing.com
Click to expand...
I had created my own part, NODE2NODE, in PSpice Schematics, to handle
temporary ties during simulation without losing the individual names,
so it was a piece-a-cake to add it into anything undergoing
Crapturization ;-)

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

It's what you learn, after you know it all, that counts.

Due to excessive spam, gmail, googlegroups, UAR, AIOE are blocked!
 
Jim Thompson wrote:
On Mon, 07 Jul 2008 18:48:43 GMT, Charlie E. <edmondson@ieee.org
wrote:

On Mon, 07 Jul 2008 11:08:36 -0700, Jim Thompson
To-Email-Use-The-Envelope-Icon@My-Web-Site.com> wrote:

On Mon, 07 Jul 2008 10:44:37 -0700, Joerg
notthisjoergsch@removethispacbell.net> wrote:

Jim Thompson wrote:
In OrCAD Crapture, wiring as below...



----.---------------> GND
__|__
---
-

Wiring from a ground symbol to a port name, the "zero" node effect is
lost, giving "floating node" errors and all kinds of nonsensical
grief.

Cured by inserting a zero-volt voltage source:

----.---------(=)-----> GND
__|__
---
-

I have a small "(=)" symbol which netlists as a zero-volt voltage
source that I use to make node-name-to-node-name connections without
losing the uniqueness of each name.

You mean OrCad can't even do that anymore?

----. .-------> GND PORT
__|__ __|__
--- ---
- -

gasp

Was no problem with SDT.
Not a problem with PSpice Schematics either. Only caught it when I
converted a PSpice Schematic to OrCAD Crapture... saved by Charlie
Edmondson's insight... Thanks, Charlie!

...Jim Thompson
No problem.

The problem is so bad in ConceptHDL that they included the symbol to
do that - connect two different named nets. In Capture, the only
place you really need it is for power and ground nets, where you can't
tolerate the name changes...

Charlie
www.edmondsonengineereing.com

I had created my own part, NODE2NODE, in PSpice Schematics, to handle
temporary ties during simulation without losing the individual names,
so it was a piece-a-cake to add it into anything undergoing
Crapturization ;-)
Click to expand...
When I read this and other stuff I wonder why you and others are still
using OrCad. I don't anymore.

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
 
On Mon, 07 Jul 2008 14:55:11 -0700, Joerg
<notthisjoergsch@removethispacbell.net> wrote:

Jim Thompson wrote:
On Mon, 07 Jul 2008 18:48:43 GMT, Charlie E. <edmondson@ieee.org
wrote:

On Mon, 07 Jul 2008 11:08:36 -0700, Jim Thompson
To-Email-Use-The-Envelope-Icon@My-Web-Site.com> wrote:

On Mon, 07 Jul 2008 10:44:37 -0700, Joerg
notthisjoergsch@removethispacbell.net> wrote:

Jim Thompson wrote:
In OrCAD Crapture, wiring as below...



----.---------------> GND
__|__
---
-

Wiring from a ground symbol to a port name, the "zero" node effect is
lost, giving "floating node" errors and all kinds of nonsensical
grief.

Cured by inserting a zero-volt voltage source:

----.---------(=)-----> GND
__|__
---
-

I have a small "(=)" symbol which netlists as a zero-volt voltage
source that I use to make node-name-to-node-name connections without
losing the uniqueness of each name.

You mean OrCad can't even do that anymore?

----. .-------> GND PORT
__|__ __|__
--- ---
- -

gasp

Was no problem with SDT.
Not a problem with PSpice Schematics either. Only caught it when I
converted a PSpice Schematic to OrCAD Crapture... saved by Charlie
Edmondson's insight... Thanks, Charlie!

...Jim Thompson
No problem.

The problem is so bad in ConceptHDL that they included the symbol to
do that - connect two different named nets. In Capture, the only
place you really need it is for power and ground nets, where you can't
tolerate the name changes...

Charlie
www.edmondsonengineereing.com

I had created my own part, NODE2NODE, in PSpice Schematics, to handle
temporary ties during simulation without losing the individual names,
so it was a piece-a-cake to add it into anything undergoing
Crapturization ;-)


When I read this and other stuff I wonder why you and others are still
using OrCad. I don't anymore.
Click to expand...
I'm not, but I have customers who insist on documentation presented in
Crapture format.

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

It's what you learn, after you know it all, that counts.

Due to excessive spam, gmail, googlegroups, UAR, AIOE are blocked!
 
On Mon, 07 Jul 2008 15:35:20 -0700, Joerg
<notthisjoergsch@removethispacbell.net> wrote:

Jim Thompson wrote:
On Mon, 07 Jul 2008 14:55:11 -0700, Joerg
notthisjoergsch@removethispacbell.net> wrote:

Jim Thompson wrote:
On Mon, 07 Jul 2008 18:48:43 GMT, Charlie E. <edmondson@ieee.org
wrote:

On Mon, 07 Jul 2008 11:08:36 -0700, Jim Thompson
To-Email-Use-The-Envelope-Icon@My-Web-Site.com> wrote:

On Mon, 07 Jul 2008 10:44:37 -0700, Joerg
notthisjoergsch@removethispacbell.net> wrote:

Jim Thompson wrote:
In OrCAD Crapture, wiring as below...



----.---------------> GND
__|__
---
-

Wiring from a ground symbol to a port name, the "zero" node effect is
lost, giving "floating node" errors and all kinds of nonsensical
grief.

Cured by inserting a zero-volt voltage source:

----.---------(=)-----> GND
__|__
---
-

I have a small "(=)" symbol which netlists as a zero-volt voltage
source that I use to make node-name-to-node-name connections without
losing the uniqueness of each name.

You mean OrCad can't even do that anymore?

----. .-------> GND PORT
__|__ __|__
--- ---
- -

gasp

Was no problem with SDT.
Not a problem with PSpice Schematics either. Only caught it when I
converted a PSpice Schematic to OrCAD Crapture... saved by Charlie
Edmondson's insight... Thanks, Charlie!

...Jim Thompson
No problem.

The problem is so bad in ConceptHDL that they included the symbol to
do that - connect two different named nets. In Capture, the only
place you really need it is for power and ground nets, where you can't
tolerate the name changes...

Charlie
www.edmondsonengineereing.com
I had created my own part, NODE2NODE, in PSpice Schematics, to handle
temporary ties during simulation without losing the individual names,
so it was a piece-a-cake to add it into anything undergoing
Crapturization ;-)

When I read this and other stuff I wonder why you and others are still
using OrCad. I don't anymore.

I'm not, but I have customers who insist on documentation presented in
Crapture format.


Then I must be rather lucky. None of mine require that.
Click to expand...
I have worse problems than that, some want Cadence Composter and some
want SPE :-(

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |

It's what you learn, after you know it all, that counts.

Due to excessive spam, gmail, googlegroups, UAR, AIOE are blocked!
 
Jim Thompson wrote:
On Mon, 07 Jul 2008 15:35:20 -0700, Joerg
notthisjoergsch@removethispacbell.net> wrote:

Jim Thompson wrote:
On Mon, 07 Jul 2008 14:55:11 -0700, Joerg
notthisjoergsch@removethispacbell.net> wrote:

Jim Thompson wrote:
On Mon, 07 Jul 2008 18:48:43 GMT, Charlie E. <edmondson@ieee.org
wrote:

On Mon, 07 Jul 2008 11:08:36 -0700, Jim Thompson
To-Email-Use-The-Envelope-Icon@My-Web-Site.com> wrote:

On Mon, 07 Jul 2008 10:44:37 -0700, Joerg
notthisjoergsch@removethispacbell.net> wrote:

Jim Thompson wrote:
In OrCAD Crapture, wiring as below...



----.---------------> GND
__|__
---
-

Wiring from a ground symbol to a port name, the "zero" node effect is
lost, giving "floating node" errors and all kinds of nonsensical
grief.

Cured by inserting a zero-volt voltage source:

----.---------(=)-----> GND
__|__
---
-

I have a small "(=)" symbol which netlists as a zero-volt voltage
source that I use to make node-name-to-node-name connections without
losing the uniqueness of each name.

You mean OrCad can't even do that anymore?

----. .-------> GND PORT
__|__ __|__
--- ---
- -

gasp

Was no problem with SDT.
Not a problem with PSpice Schematics either. Only caught it when I
converted a PSpice Schematic to OrCAD Crapture... saved by Charlie
Edmondson's insight... Thanks, Charlie!

...Jim Thompson
No problem.

The problem is so bad in ConceptHDL that they included the symbol to
do that - connect two different named nets. In Capture, the only
place you really need it is for power and ground nets, where you can't
tolerate the name changes...

Charlie
www.edmondsonengineereing.com
I had created my own part, NODE2NODE, in PSpice Schematics, to handle
temporary ties during simulation without losing the individual names,
so it was a piece-a-cake to add it into anything undergoing
Crapturization ;-)

When I read this and other stuff I wonder why you and others are still
using OrCad. I don't anymore.
I'm not, but I have customers who insist on documentation presented in
Crapture format.

Then I must be rather lucky. None of mine require that.

I have worse problems than that, some want Cadence Composter and some
want SPE :-(
Click to expand...
I'd probably try to convince them to have it transcribed by someone.
This was done a few times in my cases since my clients use all kinds of
CAD systems, one even AutoCAD (including the schematics). Adds a couple
hours of my time to check the results but it sure is cheaper for the
client. Beats having to pay for a complete seat plus my training.

--
Regards, Joerg

http://www.analogconsultants.com/

"gmail" domain blocked because of excessive spam.
Use another domain or send PM.
 
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