[Coco] Jumper settings needed

[LinuxRules]

tonym wrote:
>> -----Original Message-----
>> From: LinuxRules Linux-Rules at austin.rr.com
>> Sent 10/2/2008 1:29:33 PM
>> To: CoCoList for Color Computer Enthusiasts coco at maltedmedia.com
>> Subject: Re: [Coco] Jumper settings needed
>>
>> RON BIHLER wrote:
>> First thing that comes to mind, PC's use cable select (Twisted wires). Depending the connector changes >the drive number. 
>> Second they also want the drive to be jumpered for D1 and not Drive D0. 
>>
>> Yep! First thing I checked.
>> PC actually selects the drive correctly (watch the LED select lite) but
>> prints "NOT READY" message.
>>
>>     
>
> I don't how much of a difference it makes, and maybe I have my models mixed up, and I can check when I get home, but I thought the M4853 was a DS/QD 80T 96TPI 720kb FDD? I believe the M4851 is the 360kb DS/DD 40T 48tpi
>
> The M4853 is what was used in the Tandy 2000's
>
> Wouldn't you have to set it up in the PC's BIOS as a 720kb FDD? It is the exact same geometry as a
> 3.5" 720KB floppy, and that is how I set it up in my PC for doing imaging
>
> Tony
Would the geometry setup cause it to select the drive, but see it as Not 
Ready?
I was thinking that incorrect geometry setup would simply make it 
unreadable.
When I setup Drive-A incorrectly in BIOS, that is what happens.
I.E. It is still found to be "Ready", but the media cannot be read..........

Since last post, I found that Linux LiveCD also fails to mount the drive.
Sure seems to be a hardware issue.....??....

Aging brain cells don't work well, but I seem to remember that back in
the "Old Days", floppy drives could be jumpered to provide "Ready"
based on things like Head Loaded, Drive Selected, and/or Motor On,
etc. I am suspicious that something like that is going on..........

Wish I could remember more!

cheers,
johnd
> ------------------------------------------------------------------------