DEC RK07 drive interface specs wanted

From: Jochen Kunz <jkunz_at_unixag-kl.fh-kl.de>
Date: Fri May 14 02:26:22 2004

On Thu, 13 May 2004 22:34:22 +0100 (BST)
ard_at_p850ug1.demon.co.uk (Tony Duell) wrote:

> To me, a classic computer system
> is more than just the CPU. The peripherals are part of it as well.
> Running a PDP11 with flash memory mass storage is not the same as
> running one with a demountable hard disk.
Very true. The sound of a spinning disk...
But I have only one RK07 medium. So I can not benefit from the
posibility to swap media.
And: Disk drives are prone to fail. Lots of mechanical stuff that weres
out much faster then electronic. The ideal solution is to have the solid
state disk for dad-to-day use and the real drive for the feel of it,
data exchange, ...

> > I don't know. I suspect that I would need a FPGA for bus glue logic
> DEC managed with a handful of TTL.
Sure. But a FPGA is run time reconfigurable so I can emulate what ever
interface I want. I can even emulate multiple different interfaces at
the same time as a FPGA has enough complexity. (Maybe a RK07 and a TS11)

Meanwhile I got a private mail from someone who has a QBus board in
prototype state. It looks much like my proposed UniBus solution with FPGA
and PowerPC CPU. There will be a UniBus version if this QBus board
becomes a success. So it looks like we just have to wait for this solution
to all our QBus / UniBus storage problems. :-)
-- 
tsch??,
       Jochen
Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/
Received on Fri May 14 2004 - 02:26:22 BST

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