[Coco] Stand-alone DriveWire devices.
james at skwirl.ca
Fri Sep 17 12:14:51 EDT 2004
On Fri, 17 Sep 2004 alsplace at pobox.com wrote:
> It dawns on me that there must be some really cheap PIC-type
> programmable device with memory storage and some programmable CPU.
> Some of these gadgets are very cheap. If there was such a device, it
> might be interesting to make a standalone "DriveWire" hardware unit
> that could just plug into a CoCo's serial port. Anyone out there
> familiar with the state of the art for BASIC STAMP or PIC type chips?
> It would just need to have a fast serial port and some form of backed
> up memory (flash, battery backed RAM?).
Oh, I like this idea. :) Atmel's AVR chips are both speedy enough and have
support for a wide range of things, like Atmel's flash chips (of course),
as well as serial. There's also strong support for gcc targeting the AVRs,
so porting code to them is a breeze.
Boisy, off hand, is there anything in the protocol that would require a
sophisticated processor, ie. compute intensive portions? Does it require
32-bit math, or will an 8-bit processor work? What's the max space
addressable per disk with DriveWire?
For that matter, it might be possible to network two CoCos through
There's another project on my plate. :) Unfortunately, you can't have two
DriveWire servers connected to the same CoCo.
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