[Coco] An 8-Slot Multi-Pak Design for my Color Computer Friends

[Little John (GIMEchip.com)]

Oh, I see what you're saying now - I just let eagle automatically do the 
ground planes - not because I'm lazy, oh wait, yeah - I am lazy :-)
-John

----- Original Message ----- 
From: <jdaggett at gate.net>
To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
Sent: Monday, July 05, 2010 10:48 AM
Subject: Re: [Coco] An 8-Slot Multi-Pak Design for my Color Computer Friends


> On 4 Jul 2010 at 19:16, Gene Heskett wrote:
>
>> TBT, the shacks own design re the ground plane sucks, big time.  I had to
>> add more bypassing and lots of 12 gage solid jumpers to get the ground
>> bounce down to the no error levels in my mpi.  I started with about 2 
>> volts
>> in the middle of it, referencing the clip ears on the coco's motherboard.
>
> For some reason some think that the more ground the better. That is not 
> always the truth.
>
> In some layouts you get fingers of ground that lies between runners that 
> tend to float or are
> tied to a ground at one end. These are more potentially bothersome than no 
> ground fill at all.
>
> Putting ground in on a two layer board has to be done with some thoughts. 
> I find it is always
> best to route power and ground first. Then signals. trying to move the 
> power and ground as
> little as possible.
>
> james
>
> --
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> Coco at maltedmedia.com
> http://five.pairlist.net/mailman/listinfo/coco


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