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- Newsgroups: comp.sys.ibm.pc.hardware
- Path: sparky!uunet!usc!sol.ctr.columbia.edu!ucselx!crash!donm
- From: donm@crash.cts.com (Don Maslin)
- Subject: Re: **WANTED** 8 inch Floppy Controller
- Organization: CTS Network Services (crash, ctsnet), El Cajon, CA
- Date: 09 Sep 92 22:06:14 PDT
- Message-ID: <1992Sep09.220615.15815@crash>
- References: <2tsnq2n@Stollmann.DE>
- Lines: 26
-
- Volkmar Grote (vg@sai1.stollmann.de) wrote:
- : donm@crash.cts.com (Don Maslin) writes:
- :
- : >
- : > An alternative that should work is to use a High Density FDC - preferably,
- : > a four floppy one with the external drive connector - and a copy of the
- : > Sydex shareware program 22DISK. Sydex also publishes information on
- : > connecting an 8" floppy drive (50 pins) to a 34 pin FDC.
- :
- : > There are some limitations here, however. Some of the old CP/M machines
- : > used a 128 byte double density sector - Altos and Sierra come to mind.
- : > This format cannot be successfully read by the 765 FDC chip used in PCs.
- : >
- : This is not quite correct:
- : I started using 22DISK with a hardware patched XT controller card, which
- : was able to do the _single_ density on track 0. I left it for a Seagate
- : ST02 SCSI/FD controller, which, to my amazement, was able to do it as well!
- : So maybe there are other controllers who do it as well.
- : Volkma
-
- Please note that I said '128 byte double density sector'. That is *not* the
- same as single density. ^^^^^^
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