From: Jim Brain (brain_at_jbrain.com)
Date: 2007-12-03 20:13:28
ruud.baltissen@abp.nl wrote:
> Hallo Pete,
>
>
>
>> I could add support for this easy if I could get an interface built.
>>
>
> Please have a look at http://www.baltissen.org/newhtm/1541ide8.htm where
> you'll find some more details. The schematic can be found at
> http://www.baltissen.org/images/1541ide8.png .
>
I had a couple of questions about the schematic:
* Tying IC7A pin 3 to pin 1 seems redundant. Can't pin 3 simply be
grounded?
* DMARQ, IORDY have 10K pulldowns. Why can't those simply be grounded?
Ruud, did you previously create a 8 bit to 16 bit interface for IDE
drives for another project? If so, is this design a subset?
Jim
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