[Coco] CoCo-XT RTC ROM and disk

Sat Sep 1 11:46:12 EDT 2018

Dave,
I have a Multi-Pack....  CoCo-XT is in slot 3.

working v2.3
    PEEK(&HC000) = 68
    PEEK(&HC001) = 75

Not working v3.0 - fresh burn
    PEEK(&HC000) = 171
    PEEK(&HC001) = 186

Thanks,
John.

On Sat, Sep 1, 2018 at 11:32 AM Dave Philipsen <dave at davebiz.com> wrote:

> Yeah, with the controller plugged in with the new ROM, what do you get
> when you PEEK(&HC000) and PEEK(&HC001)?
>
> Dave
>
> > On Sep 1, 2018, at 10:29 AM, Jim McClanahan <jim30109 at gmail.com> wrote:
> >
> > Can you PEEK () the ROM from BASIC? That would tell you if the ROM was on
> > the bus and what the contents are.
> >
> > Not exactly sure what you are doing, so that may not be helpful. But my
> > experience with EPROMs is that if they erase and I can successfully
> verify
> > the write, they work. In my homebrew systems it is usually a wiring or
> > timing problem when they don't.
> >
> > good luck,
> > Jim
> >
> >> On Sat, Sep 1, 2018, 11:21 AM John Mautz <ejmautz2 at gmail.com> wrote:
> >>
> >> Ok, received my tube of 2764A chips.  I've tried twice (each with a new
> >> chip) and when I put it in my CoCo-XT card it does not recognize the
> >> CoCo-XT.  It just boots to the normal CoCo3 screen.  When I put the old
> >> v2.3 ROM back it it boots fine so I didn't blow that part up.  Both
> chips
> >> passed verification, so that should be fine.
> >>
> >> I'm using a USBPrg GQ-4X programmer (mine is the 4x not the 4x4 which is
> >> the current version -
> >>
> http://www.mcumall.com/comersus/store/comersus_viewItem.asp?idProduct=4282
> >> ,
> >> only for reference to help me out not an advertisement, as naturally I'm
> >> having trouble).  When I open the XT-ROM30.Bin, I have a choice of Read
> >> mode, Fill Mode and File offset. I just chose defaults, Read Mode =
> Normal,
> >> Fill Mode = Normal, File Offset = 000000.
> >>
> >> Before I start the trial and error process of burn, test, UV erase, does
> >> anyone have any guidance?
> >>
> >> Thanks,
> >> John.
> >>
> >>> On Mon, Aug 27, 2018 at 10:35 PM John Mautz <ejmautz2 at gmail.com>
> wrote:
> >>>
> >>> Thank you all.  I'm just waiting on my EPROMS to arrive and I can start
> >>> playing.  You help is much appreciated.
> >>>
> >>> On Mon, Aug 27, 2018 at 4:23 PM rietveld rietveld <
> rietveldh at hotmail.com
> >>>
> >>> wrote:
> >>>
> >>>> I actually have 3.1 or 3.01.    I can upload that if it's not in the
> >>>> archive. As far as I know that was the final release. Unfortunately I
> >> don't
> >>>> think I have the manual for it but I definitely have the ROM
> >>>>
> >>>> Sent from my BlackBerry 10 smartphone.
> >>>>  Original Message
> >>>> From: tonym
> >>>> Sent: Monday, August 27, 2018 4:14 PM
> >>>> To: coco at maltedmedia.com
> >>>> Reply To: CoCoList for Color Computer Enthusiasts
> >>>> Subject: Re: [Coco] CoCo-XT RTC ROM and disk
> >>>>
> >>>>
> >>>> Pretty sure I uploaded the 3.0 ROM, and manual, a few years back.
> might
> >>>> be on "THE ftp" though...
> >>>>
> >>>> Tony
> >>>>
> >>>>
> >>>> ---- Original Message ----
> >>>> From: "Grumpyx" <grumpyx at gmail.com>
> >>>> Sent: 8/26/2018 9:39:03 PM
> >>>> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> >>>> Subject: Re: [Coco] CoCo-XT RTC ROM and disk
> >>>>
> >>>> The color computer archive has them:
> >>>>
> >>>> http://www.colorcomputerarchive.com/search?q=burke&ww=0&cat=&cs=0
> >>>>
> >>>> The XT-ROM zip file has several version including 3.0
> >>>>
> >>>>
> >>>>
> >>>>> On Sat, Aug 25, 2018 at 6:55 PM John Mautz <ejmautz2 at gmail.com>
> wrote:
> >>>>>
> >>>>> Hello,
> >>>>>
> >>>>> I picked up a CoCo-XT RTC a few months ago.  It works great as it
> came
> >>>> with
> >>>>> what I was told is a 5MB HD.  My CoCo-XT has the Western Digital
> >>>> 1002A-WX1
> >>>>> card int it.  When it boots it show the Burke & Burke ROM version to
> >> be
> >>>>> 2.3.  I don't see a version on the CoCo-XT RTC card (other than the
> >>>>> copyright 1988, though it could be on the back of the card).    I've
> >>>> doing
> >>>>> some searches for about a week now and I must be searching the wrong
> >>>> way as
> >>>>> I'm not finding any hits.
> >>>>>
> >>>>> This brings me to my 2 questions:
> >>>>> 1) Does anyone have a newer version of the ROM?  If so can you
> >> provide a
> >>>>> link or send it to me?  I have searched around and all I can find is
> >> the
> >>>>> manual for version 2.4 and a 2.5 supplement. - BTW: I'm willing to
> >> read
> >>>> and
> >>>>> upload my version 2.3 ROM if someone wants it.
> >>>>>
> >>>>> 2) Has anyone see the disk imaged some place?  I've looked and I seen
> >>>> where
> >>>>> it used to be sold for $24.99 but no links to the actual software.
> >>>>>
> >>>>> So other than completeness, why do I ask?  I was able to get a Tandy
> >>>> 20MB
> >>>>> external hard drive.  The PS was dead so I replaced that and would
> >> like
> >>>> to
> >>>>> use the Seagate ST-225 that came with it.  Therefore I need the disk
> >>>> with
> >>>>> the utilities on it.
> >>>>>
> >>>>> Thanks,
> >>>>> John.
> >>>>>
> >>>>> --
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> >>>>>
> >>>>
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> >>>
> >>
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