[Coco] So, how do I make Drivewire go?

Christopher Smith csmith at wolfram.com
Mon Sep 23 15:48:31 EDT 2013


The machine is a CoCo 1, 64k.  It had one floppy drive hooked up locally through a Tandy controller; I don't think that should matter.  HDBDOS did manage to work the local drive when I typed DRIVE OFF.  The ROM image I was using came from cloud-9's Drivewire 3 page, so I assume it's not the DW4 ROM.

I thought about running a serial sniffer on the host side and seeing what's going on.  Trouble is that I don't really have a terminal program for the CoCo.  I could download one and send it over with Drivewire of course, but if that worked I wouldn't need it... ;)

Chris

----- Original Message -----
> From: "Tormod Volden" <lists.tormod at gmail.com>
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Sent: Monday, September 23, 2013 2:42:33 PM
> Subject: Re: [Coco] So, how do I make Drivewire go?
> 
> On Mon, Sep 23, 2013 at 7:27 PM, Christopher Smith wrote:
> > Since everyone else is talking about it, I thought I'd write in
> > about my experience with Drivewire last week.  I thought I'd set
> > up Drivewire and get the CoCo actually doing something.  Pulled
> > the HDBDOS WAV file for the CoCo 1 from the cloud-9 web page.
> >  Also installed the Drivewire 4 server on my Linux box and the
> > MacOS X Drivewire 3 server on a different machine, just in case.
> >  The cable, as far as I can tell, is correct.  I made it after
> > this diagram:
> > http://www.mediafire.com/view/c91gj67kw7q6yzu/CoCo_DriveWire_3_Serial_Cable.pdf
> 
> It sounds like you did everything that is needed. Note that above
> cable is not prepared for DATurbo mode, so you must not use a DW4 WAV
> file. What kind of CoCo are we talking about?
> 
> > Anyway, I load up either Drivewire server, tell it to serve some
> > floppy images, load HDBDOS off cassette, and everything looks ok
> > but the only thing I can get HDBDOS to tell me about any disk
> > device is "I/O Error."  It flashes lights on the serial interface
> > when it tries to access the disk, but the server doesn't seem to
> > do anything useful in response.  I'm afraid it's been a couple of
> > days, but I remember seeing a lot of OP_NOP in the log.  Am I
> > missing something obvious here?  How does one debug this stuff?
> 
> How to debug depends a bit on your equipment and skills. I would have
> run some terminal emulation program on both ends to verify that you
> have the physical setup correct. I don't know what's available on
> CoCo, but on the other computer you can use Hyperterminal on Windows
> or "screen /dev/ttyUSB0 57600" on Linux.
> 
> The flashing light and NOP in the logs indicate that communication is
> at least working in one direction.
> 
> Tormod
> 
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> 

-- 
Christopher Smith
Systems Engineer, Wolfram Research



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