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

[Little John (GIMEchip.com)]

Hah- you're right - I ACCIDENTALLY named the GND pins of the cart plug GND1 
instead of GND when I entered their net name - a typo - so that is a serious 
mistake that you've located. Easily fixed though - I just have to rename 
that sucker to GND and reroute the board. Thanks James - 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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