[Coco] DriveWire 4 - NitrOS-9 Floppy *BOOTSTRAP!*

Aaron Wolfe aawolfe at gmail.com
Sun Sep 29 20:58:22 EDT 2013


On Sun, Sep 29, 2013 at 8:48 PM, Bill Pierce <ooogalapasooo at aol.com> wrote:
>
> Chad, are you trying to turn Turbo on or off?
> Either way, just use the proper driver for it.... but wait... they are not currenly being built.
> What Coco model are you using? (1, 2, or 3)?
> I could muck with my local copy of the repo and make it build the Turbo drivers if needed. I've been wanting to do this anyway to get mine in Turbo.
>
> BTW... does anyone know why there's no Turbo hdbdos for Coco 1?
> The roms that are built are only for Coco 2 & 3. I know the 1 needs a slower baud due to the serial com flaw.

I suspect because 38400 x 2 = 76800, which is a pretty weird serial port speed.
It may also be that the same hardware issues which prevent 57600 also
simply do not allow any "turbo" operation.

Please remember that the so called "DW4" or Turbo roms and drivers are
experimental and unsupported at this time.  As you noted, they are not
automatically built in the standard boot disks.  It is expected that
if you want to experiment with these things that you will have a
NitrOS9 build system and the experience to create these modules from
what is provided.. if this doesn't sound like something you (and I
don't mean you specifically, Bill :) are able or want to do, please
wait until the Turbo stuff is made mainstream.



>
> Bill Pierce
> My Music from the Tandy/Radio Shack Color Computer 2 & 3
> https://sites.google.com/site/dabarnstudio/
> Co-Webmaster of The TRS-80 Color Computer Archive
> http://www.colorcomputerarchive.com/
> Co-Contributor, Co-Editor for CocoPedia
> http://www.cocopedia.com/wiki/index.php/Main_Page
> E-Mail: ooogalapasooo at aol.com
>
>
>
>
> -----Original Message-----
> From: Chad H <chadbh74 at hotmail.com>
> To: 'CoCoList for Color Computer Enthusiasts' <coco at maltedmedia.com>
> Sent: Sun, Sep 29, 2013 8:02 pm
> Subject: Re: [Coco] DriveWire 4 - NitrOS-9 Floppy *BOOTSTRAP!*
>
>
> Nice...a lot of chains in that link on the CC3 :)
>
> Now if I can just trace down how the DriveWire/NitrOS-9 bootstrap is setting
> up the serial communications parameters and change it to 115200/2/xor on the
> output, I will be good.
>
> -----Original Message-----
> From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
> Behalf Of Bill Pierce
> Sent: Sunday, September 29, 2013 6:55 PM
> To: coco at maltedmedia.com
> Subject: Re: [Coco] DriveWire 4 - NitrOS-9 Floppy *BOOTSTRAP!*
>
>
> Good work Chad, I must have missed the post or I would've told you to do it
> just that way.
>
> My Coco 3 has an autoboot feature (part of the Eagle keyboard interface) and
> executes DOS after 10 or 15 secs if you don't hit a key. I have track 34
> setup with a "dos" routine that runs a basic program that loads hdbdos from
> the disk then a menu comes up (RG's RGBDOS menu) and I have it set so after
> 15 secs of not hitting a key, it does a DOS255 and boots NitrOS9. So I just
> turn the Coco 3 on and it'll be in Nitros9 in less than a minute, while I'm
> booting my Coco 1 and VCC.
>
> My Coco 1 has no such feature and I rarely use BASIC so I just made a boot
> for it the same as you described. It has the floppy boot but defaults to /dd
> after it starts which is really /x0. There's a copy of the OS9Boot on the
> VHD as well for "reset" warm starts. It works well for me. I do have another
> disk set up for hdbdos if I want to work in BASIC and it will boot Nitros9
> from drive255. I have the same "dos" program on that disk that starts
> hdbdos.
>
> Bill Pierce
> My Music from the Tandy/Radio Shack Color Computer 2 & 3
> https://sites.google.com/site/dabarnstudio/
> Co-Webmaster of The TRS-80 Color Computer Archive
> http://www.colorcomputerarchive.com/
> Co-Contributor, Co-Editor for CocoPedia
> http://www.cocopedia.com/wiki/index.php/Main_Page
> E-Mail: ooogalapasooo at aol.com
>
>
>
>
> -----Original Message-----
> From: Chad H <chadbh74 at hotmail.com>
> To: 'CoCoList for Color Computer Enthusiasts' <coco at maltedmedia.com>
> Sent: Sun, Sep 29, 2013 7:36 pm
> Subject: [Coco] DriveWire 4 - NitrOS-9 Floppy *BOOTSTRAP!*
>
>
> Ok, someone told me this couldn't be done.  Perhaps they didn't understand
> what I was referring to..
>
>
>
> *       I wanted to be able to turn on my CoCo WITHOUT a DriveWire ROM, type
> DOS and it 'BOOTSTRAP' into NitrOS-9 on the DriveWire 4 server.
>
>
>
> I've managed to create a real Floppy that does just that.  DriveWire ROM not
> required!  Essientially it is a DriveWire 4 NitrOS-9 floppy that starts the
> bootup sequence from the real disk but somewhere along the way it 'switches'
> to the /DD image housed on the DriveWire 4 server and seamlessly continues.
> :-)
>
>
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