Imaging and Emulating Rainbow
kwwacker at ptd.net
Sun Aug 14 19:10:05 CDT 2016
If you don't mind doing a little hardware / software:
I've been using a module from FTDI that 'talks' TTL level RS232 at
baud rate up to / past? 115Kbaud, and 'talks to' USB thumb drives.
Go to digikey / etc, and look at the 'VDRIVE3' from FTDI.
It does all the grunt work in handling file creation and reading.
----- Original Message -----
From: "Jules Richardson" <jules.richardson99 at gmail.com>
To: <General at classiccmp.org>; "Discussion at classiccmp.org:On-Topic and
Off-Topic Posts" <cctalk at classiccmp.org>
Sent: Sunday, August 14, 2016 6:03 PM
Subject: Re: Imaging and Emulating Rainbow
> On 08/14/2016 10:59 AM, Al Kossow wrote:
>> If it's running MS-DOS, you should be able to find/write something to do
>> a raw image
>> dump out the serial port.
>> That reminds me, I need to image some Rainbow floppies I have.
>> I would think someone would have already written this in the MS-DOS
> Indeed. I got as far as hacking something to sector-dump chunks of data
> from the hard disk to floppy, then sneakernetting that across to a modern
> PC for reassembly (~20MB is a little painful, but not too bad, writing to
> one disk while reading from another).
> My initial intention was to polish the code a bit and add serial support,
> but that was immediately followed by the thought of "surely someone else
> has done this already?", at which point I'd done what I immediately needed
> to do anyway, and so never did anything more with the code.
> If anyone knows of an x86 DOS util which does sector dumps over rs232, I'd
> be interested to hear about it (particularly if the transfer protocol is
> something supported by any old comms program). I do have various '80s-era
> PCs with ST506/412-type drives which could benefit from a backup.
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