[PCB_FORUM] Re: The router...
- From: "Bye, Randy W" <Randy.Bye@xxxxxxxxxx>
- To: <icu-pcb-forum@xxxxxxxxxxxxx>
- Date: Fri, 8 Jul 2005 15:28:31 -0500
Hmmm....I'm not sure what you mean by semi-auto.... The only true
auto-route engine in Allegro that I'm aware of is Specctra a.k.a CCT.
Any manual editing done within the Allegro GUI is done via the Allegro
interactive router, (Add Connect, Slide, Delay Tune... Etc...) I
suppose Delay Tune could be considered semi-auto....
Regarding manual routing in Specctra: In general I find the Specctra
GUI and pull-down menus easier to navigate and the trace editing more
intuitive. You don't have to worry about, Bubble (hug/shove)
settings, it replaces etch by default, if you set line lock to 45 you
can do either 45 or 90 not just 45s.... , You can toggle between
move/slide and add-connect with the RMB. Same net checking can be
enabled/disabled with the RMB pop-up menu. I can easily do some
auto-routing, and then do manual cleanup/adjustments without going back
into Allegro after each auto-route pass.
There is also a laundry list of things I like better about Allegro's
interactive routing too, so I tend to use both tools depending on what
I'm doing and where I am at in the design cycle. Your mileage may
vary.......
In addition, I suspect I have a little bias towards Specctra because I
used it for about 5 years before I ever started using Cadence/Allegro
tools. Do files are my friends....... ;-)
Regards,
Randy
-----Original Message-----
From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
[mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of Austin Franklin
Sent: Friday, July 08, 2005 2:48 PM
To: icu-pcb-forum@xxxxxxxxxxxxx
Subject: [PCB_FORUM] Re: The router...
Hi Randy,
> The auto-router built into Allegro is the Specctra router.
Sounds like a semantics issue. The auto-router that comes WITH Allegro
(it
is an entirely separate program) is Specctra, the "router" (it's
semi-auto
IMO, not fully auto, like Specctra is) that is in Allegro is not
Specctra.
> In addition to auto-routing it [Specctra[ has excellent interactive
> route editing capability too. I find that there are some things I
like
> doing with the Specctra route editor and others with the Allegro route
editor.
That's what I'd like to hear about. I haven't used the Specctra
interactive
routing, and would like to know what things you feel it is better at
than
the Allegro interactive router.
Regards,
Austin
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