[Coco] Need a FD 502 controller that can accept 28 pin roms

Darren A mechacoco at gmail.com
Wed Oct 13 15:06:40 EDT 2010


There is a small problem with SLENB* on the CoCo 1 F board.  That
board has a capacitor (C77) which intoduces some kind of rise-time
issue on the SLENB* signal.  I had to cut that capacitor to get my
project to work.  None of the other CoCo motherboards have this flaw.

Darren

-----

On 10/13/10, Little John wrote:
> That would do it (DSD* is the Dragon Equivalent of SLENB* for anyone
> wondering).
> :)
>
> ----- Original Message -----
> From: "Phill Harvey-Smith"
>>
>> Unless you decode it yourself and assert DSD to disable the internal
>> decoder.
>>
>> Cheers.
>>
>> Phill.
>>



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