Hi Joe,
I'll dig it out, but it is very specifically for the Gridcase series.
Is that what you want? It won't do anything for any other computers.
Joe wrote:
> 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
>
>
> .
>
--
Dave Mabry dmabry_at_mich.com
Dossin Museum Underwater Research Team
NACD #2093
Received on Thu Jan 30 2003 - 16:36:01 GMT