[PCB_FORUM] Re: NO_RAT property appearing from schematic
- From: "Naren" <naren@xxxxxxxxxx>
- To: icu-pcb-forum@xxxxxxxxxxxxx
- Date: Sat, 30 Apr 2005 13:13:39 +0530 (IST)
If you assign it as DC net in setup adviser then it will work...
try it..
Kevin McCowan said:
> This has been a "feature" of allegro for a
> real long time. How can you guys not know it?
> I think I read somewhere in one of the help
> files that any net with over 50 connections
> is automatically rendered with the no_rat
> property to keep the ratsnests from becoming
> too complicated when they are displayed.
> You can delete it, of course, but you won't find
> where it is added. I don't think there is any
> way to keep it from happening, either. Maybe
> you could ask Cadence and see if there is
> some kind of setting that would keep this from
> happening if you don't want it to for some reason.
>
> Kevin McCowan
> Sr. PCB Designer
> TSI Telsys
>
> William Billereau wrote:
>> all power nets are treated like this.
>> Automatically, it have NO_RAT property.
>>
>> I do not know where it comes from, but it seems to be done by the
>> packager or the netrev process.
>>
>> William.
>>
>> ----- Original Message ----- From: "Daniel So" <danielso@xxxxxxxxxxxxx>
>> To: <icu-pcb-forum@xxxxxxxxxxxxx>
>> Sent: Thursday, April 28, 2005 5:22 PM
>> Subject: [PCB_FORUM] Re: NO_RAT property appearing from schematic
>>
>>
>>>
>>> I started this from another design. However, when I came across this
>>> problem I imported the netlist onto a brd created from scratch and
>>> still
>>> got the same results.
>>>
>>>
>>> Daniel So
>>> 1065 La Avenida
>>> Mtn View, Ca 94043
>>> (650) 693-2054
>>> email: danielso@xxxxxxxxxxxxx
>>> -----Original Message-----
>>> From: icu-pcb-forum-bounce@xxxxxxxxxxxxx
>>> [mailto:icu-pcb-forum-bounce@xxxxxxxxxxxxx] On Behalf Of William Gerner
>>> Sent: Thursday, April 28, 2005 8:19 AM
>>> To: icu-pcb-forum@xxxxxxxxxxxxx
>>> Subject: [PCB_FORUM] Re: NO_RAT property appearing from schematic
>>>
>>> Did you start your design from scratch or use some other board as
>>> the start point?
>>>
>>> Daniel So wrote:
>>>
>>>> I am reading in a netlist from Concept which is suppose to have no
>>>> constraints or properties. However, I am getting a NO_RAT property on
>>>> the GND net. Doing a search on the ascii files of the schematic pages
>>>> shows no instances of this property. The property does not appear in
>>>
>>> any
>>>
>>>> of the dat files created from Concept. Any ideas where this property
>>>
>>> is
>>>
>>>> coming from?
>>>>
>>>>
>>>>
>>>> Thanks for any ideas
>>>>
>>>>
>>>>
>>>> Daniel So
>>>>
>>>> 1065 La Avenida
>>>>
>>>> Mtn View, Ca 94043
>>>>
>>>> (650) 693-2054
>>>>
>>>> email: danielso@xxxxxxxxxxxxx
>>>>
>>>>
>>>>
>>>
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--
"Keep looking foreward"
Regards
Naren Thesia
Member CAD
D'GIPRO SYSTEMS PVT. LTD. BANGALORE
TEL: 080-25219017/18 (O)
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