12 May
2004
12 May
'04
12:39 p.m.
On Wed, May 12, 2004 at 07:50:14PM -0400, der Mouse wrote:
I wrote:
The SASI port is internal - there are two PCBs in the drive enclosure,
a "DOS board" (C='s term) with one processor to talk GPIB to the outside
world, and another processor to talk SASI to the other board, a Xebec?
SASI<->ST-506 board. The drive mech is either a Tandon TM602S or a TM603S.
The idea was to upgrade the "DOS board" firmware to speak SCSI rather than
SASI (same electrical interface, _slightly_ different command set) to use
a more modern 50MB-200MB drive of the sort I have in stacks on the shelf.
Slightly easier than implementing a command-set compatible drive from
scratch.
-ethan
--
Ethan Dicks, A-130-S Current South Pole Weather at 13-May-2004 00:32 Z
South Pole Station
PSC 468 Box 400 Temp -66.9 F (-55.0 C) Windchill -130.3 F (-90.2 C)
APO AP 96598 Wind 15.7 kts Grid 031 Barometer 688.1 mb (10321. ft)
Ethan.Dicks(a)amanda.spole.gov http://penguincentral.com/penguincentral.html
The only HPIB
disks I have _are_ of trivial digital size and _non_
trivial physical size -
Commodore D9060 and D9090 units (5MB and 7.5MB,
5.25"-full height MFM
drives inside). I keep thinking of trying to rewrite the ROM code
and turn the software-driven SASI port into a SCSI port.
The software-driven SASI port of what?