5.25 drive with sector output

[dwight elvey]

> From: cclist at sydex.com
>
>> From: dwight elvey 
>
>> Were there any 5.25 drive made with sector pulse output?
>> I'm working on a controller for my Polymorphic. I have not
>> software to run the board so I'm decoding the Z80 code
>> that runs in its firmware.
>
> I can ever recall having seen one, although that's not saying that
> there never have been any.
>

I was just wondering. I know the controller was intended for
both 8 inch drives and 5.25. It might be that if using an 8 inch
drive, it uses the SECTOR signal while if running a 5.25,
it would use just the index out.
 I'm still decoding the source.
 The board is dead but I think it is the Z80. I can see read strobes
and there is no BREQ but the address lines seem to be floating.
 Some 555s would do the trick for a index/sector seperator.
Well of to the load chip sales.
Dwight

PS
 I'd like to get your code for the PIC but I don't think I can
Beta is for you. Too many projects already. I do have a H89
that it could be tried on.

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