[Coco] high density floppy controller mods

Mark Marlette mark at cloud9tech.com
Fri Aug 4 07:17:31 EDT 2006


Mike,

As I recall, ~10 years ago. I went right to the sensor and feed it 
back on an unused interface pin.

Mark

At 8/3/2006 09:22 PM, you wrote:

>Mark Marlette wrote:
>>Mike,
>>The 3029 had both hardware and software control. Mine also senses 
>>the disk and places the controller in the correct mode on the 3.5" DD/HD disk.
>>The 3029 is quite a hack, almost like another controller! :)
>>Good luck!
>>Mark
>
>Mark,
>
>What pin are you using to sense the drive mode?
>
>My reference here says pin 2 is density select, but it doesn't say 
>if its an input or output. Reading from that pin doesn't seem to 
>change if I insert a HD or LD disk.
>
>-Mike
>
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