Date: Tue, 16 Sep 1997 10:49:06 -0400 (EDT) From: "User Rdkeys Robert D. Keys" <rdkeys@seedlab1.cropsci.ncsu.edu> To: freebsd-questions@freebsd.org Cc: rdkeys@seedlab1.cropsci.ncsu.edu (User RDKEYS Robert D. Keys) Subject: Old Sony CDROM compatibility with FreeBSD????? Message-ID: <199709161449.KAA21735@seedlab1.cropsci.ncsu.edu>
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I picked up an older Sony cdrom drive that I would like to try to adapt
to one of my FreeBSD boxes. It is a ancient thing that uses a caddy:
Board: Sony CDB-904 8 bit card with three switch blocks of jumpers.
The date on the board is 1989.
CDROM drive: Sony CDU-510-12 drive using disk caddies. I suspect it is
an older single-speed drive.
1. Is this ancient drive compatible with FreeBSD? Reading all the hardware
txt files back to 2.0.5 just indicates ``sony cdrom'' of all types.
2. Does anyone know of the proper switch jumper settings to bring it up
correctly for FreeBSD? There are three switch blocks, as follows:
ADDRESS: 2 3 4 5 6 7 8 9
on
off
IRQ 2 3 4 5 x x I/O CH RDY xx
on
off
DRQ 1/2/3 1 2 3 1 2 3 DACK 1/2/3
on
off
The address needs to be set to 230H, but which swiches to set?
The IRQ I have open is 5, but which one is best?
I have no idea what the DRQ/DACK lines set, but what should they be?
Yeah, I know, I need a ``modern'' cdrom, but this is what I have to work
with right now, and it was a freebie.....(:+{{.....
Any pointers/suggestions/comments/horror-stories/etc., appreciated.
Thanks
Bob Keys
rdkeys@seedlab1.cropsci.ncsu.edu
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