29 Jan
2005
29 Jan
'05
8:09 p.m.
On Jan 29 2005, 18:26, Glen Slick wrote:
The software involved in doing data transfers to a USB
floppy or
flash
memory device would not be trivial to implement, and
might require a
dedicated microprocessor instead of trying to run it on the S-100
host
processor.
Hmm, maybe; maybe not. A Beeb enthusiast named John Kortink has
produced an MMC interface for a BBC Micro. It's called GoMMC and it
allows you to store files using a normal BBC filing system on a
MultiMedia Card. Actually the card stores disk images, but makes them
available to the normal filing systems. The card can also be
read/written on an IBM PC (so you can move it and back it up). Take a
look at
http://web.inter.nl.net/users/J.Kortink/home/hardware/gommc/index.htm
if you're interested.
--
Pete Peter Turnbull
Network Manager
University of York
29 Jan
29 Jan
10:05 p.m.
Pete Turnbull wrote:
Hmm, maybe; maybe not. A Beeb enthusiast named John Kortink has
produced an MMC interface for a BBC Micro. It's called GoMMC and it
allows you to store files using a normal BBC filing system on a
MultiMedia Card.
I think the MMC interface is the simplest you can find for mass storage.
I wrote some code to talk to one on a PIC 18F and added enough code to
write files to a preformatted fat-16 file system. it wasn't that hard.
if you can do it on a pic a z80 should also be possible.
USB on the other hand, especially usb disk, could easily exhaust the
memory space of a z80. i'm sure it coud be done but it would take a lot
of code (and time).
-brad
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brad＠heeltoe.com -
pete＠dunnington.u-net.com