Dave,
If you find the software and docs I'd love to get a copy of them. I've had several computers that had EPROM sockets for application software but none of them ever explained what was needed to use them.
Joe
At 09:00 AM 1/30/03 -0500, you wrote:
>Maybe I shouldn't speak until I find what I will talk about, but here
>goes anyway. I used GRiD computers extensively during their "hey day"
>and I have several versions of the GRiDCase models. There was a program
>that I have somewhere that allows you to create MS-DOS bootable EPROM
>images and put files onto EPROMs for that series. It has about 10 or 15
>pages of documentation. I will look for it all, scan it, and make it
>available to anyone who would like it. Let me know if it is worth the
>effort for me to do this. As long as there are a few who would use it
>I'll do that. Just reply to the list and I'll watch for interested folks.
>
>For a while I had a gridcase powering up each night about 3am, running a
>program that would recalculate on and off times for a bunch of X10
>modules based on sunset and sunrise, and send that new schedule to the
>CP292 controller module through the serial port. All that was done on a
>simple GRiDCase 3 (the one with the plasma screen) and without any hard
>drive or floppy. It was all orchestrated from a single EPROM (or maybe
>it was two) that contained the boot code, and autoexec.bat, and the X-10
>program. The last command it would issue to the CP292 X-10 controller
>was a command to kill the power to the GRiDCase itself. Every night at
>3am this sequence would repeat. I thought that was a cool application
>for a ROM-based PC.
>
>Over the years Grid eventually removed the capability to store programs
>on EPROM, but I think it remained up through some of the 386-based
>GRiDCase models.
>
>Joe wrote:
> > I don't remember which model Grids I have but I've had them loose
> > their settings due to sitting too long and then they they couldn't
> > access their hard drives. All of them had a little door on the left
> > side above the keyboard with EPROM sockets in them. I finally found
> > one that had a EPROM in the socket. With that I could boot any of
> > them to a ***virtual*** C: drive and then update the settings and
> > then the computer would boot on the real C: drive even with the EPROM
> > removed. I've been meaning to make some copies of that EPROM but I
> > don't have a working EPROM burned that will burn that EPROM (27c010
> > IIRC). FWIW none of my Grids have a floppy drive. The floppy drive
> > is external and I've never been able to find one.
> >
> > Joe
> >
> >
> >
> > At 07:04 PM 1/29/03 -0600, you wrote:
> >
> >> I not too recenly picked up a GRiDCase 3 with 2 "GRiD Disc System
> >> 2204" external hard drives. Just yesterday they both started acting
> >> up on me. It would initially spin up when you turned it on, but
> >> after a few seconds they would just kick off. A few seconds later I
> >> get a "1702" message on my screen.
> >>
> >> I'm lead to believe that there could be a configuration problem
> >> somewhere, but I'm not 100% sure on this.
> >>
> >> My questions are:
> >>
> >> 1. What is going on here? 2. How do I fix this? -- David Vohs
> >> netsurfer_x1_at_fastmailbox.net
> >>
> >> -- http://fastmail.fm - Choose from over 50 domains or use your own
> >>
> >
> >
> > .
> >
>
>
>--
>Dave Mabry dmabry_at_mich.com
>Dossin Museum Underwater Research Team
>NACD #2093
Received on Thu Jan 30 2003 - 15:26:51 GMT