[Coco] IDE interfaces

Zippster zippster278 at gmail.com
Wed Mar 16 15:15:46 EDT 2016


Gold edge connectors are bad, haven’t you heard?  

Just kidding, but there’s been a small discussion on the Facebook group where it’s being claimed
tin-plated is better and won’t wear out your CoCo’s cart port connector as quickly as gold.  And that
that is why Tandy didn’t use it most of the time, not because of cost.

Personally I don’t  buy it, I think gold plated edge connectors are the way to go, even though they
cost a bit more.  You can certainly argue it’s not necessary, but worse?  lol.

- Ed


> On Mar 16, 2016, at 1:47 PM, Dave Philipsen <dave at davebiz.com> wrote:
> 
> One thing I noticed about the MiniIDE is that there is no gold on the edge connector.  This is a mistake that shouldn't be repeated if someone decides to design a replacement.
> 
> Dave
> 
> 
> On 3/15/2016 6:28 PM, RETRO Innovations wrote:
>> It'd be interesting to see how small one could make the interface. If one used a flash ROM IC and a CPLD, I think one could put an IDE controller with IDE and CF into a 2.2"x2" form factor.  That's be small enough for any use, no?
>> 
>> JIm
>> 
>> 
>> On 3/15/2016 12:51 PM, Tormod Volden wrote:
>>> On Tue, Mar 15, 2016 at 5:29 PM, Bill Pierce wrote:
>>>> Some of the Brazillian Coco guys used the schematic from the Glenside unit and made a more "modern" solution that was smaller wih less parts (and fit the slot better). Maybe we could talk them into letting go of the schematic and get Ed to whip some up :-)
>>> Here are some pictures of both the original Glenside board and the
>>> Brazilian "MiniIDE": http://amxproject.com/?p=2585
>>> Some people would probably prefer the big original with "integrated
>>> MPI" and DIP40 chips, but I'd also be interested in the MiniIDE. Or
>>> even a CPLD-based remake...
>>> 
>>> Tormod
>>> 
>> 
>> 
> 
> 
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