[Coco] How to read CoCo floppies on PC?

Gene Heskett gheskett at shentel.net
Thu Dec 13 16:09:25 EST 2018


On Thursday 13 December 2018 14:51:59 Salvador Garcia via Coco wrote:

>  Hi Gene,
>
> Many years ago, I had the task of formatting a 1.2MB 5 1/4" floppy
> with an IBM format, normally used in 8" disks. I found that I had to
> toss the INT 13h BIOS routine and write my own to be able to format
> the floppy. Is there a chance that a special format/read/write routine
> is necessary so that a CoCo floppy drive can be read by a PC?
>

not if the PC has this fdc chip or a close relative, it goes absolutely 
bonkers and will lock up the PC while doing the initial scan to see if 
its a mountable format of disk


> Regards, Salvador
>
>     On Thursday, December 13, 2018, 11:17:04 AM CST, Gene Heskett
> <gheskett at shentel.net> wrote:
>
>  On Thursday 13 December 2018 03:36:03 Walter Zambotti wrote:
> > What will I require to do this?
> >
> > Is there a recommend pc floppy drive.
> >
> > I only need 40 track double sided.
> >
> > Is it possible to connect a fd-502 directly to a pc?
> >
> > Walter
> >
> > Sent from my Xperia by Sony smartphone
>
> That is not normally a problem, but this mobo, a nearly $300 Asus now
> a bit over a decade old, has some sort of a super chip FDC on it, and
> just putting a 256 byte sector formatted disk in any fdc attached
> drive, will lock this machine up tight, needing a full powerdown to
> reboot it..
>
>
> --
> Cheers,  Gene Heskett
> --
> "There are four boxes to be used in defense of liberty:
>  soap, ballot, jury, and ammo. Please use in that order."
> -Ed Howdershelt (Author)
> Genes Web page <http://geneslinuxbox.net:6309/gene>
>
> --
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-- 
Cheers, Gene Heskett
--
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>


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