|Re: HP75 EPROM Buring|
Message #3 Posted by andy on 2 Oct 2003, 3:49 p.m.,
in response to message #2 by Mark Ordal
From the manual, it seems like HP would have also allowed customer send them the rom image on either mag cards, tape, or diskette. The reason I think this is because the PMS manual directs the user to request a ROM i.d. from HP before sending them anything. Then you actually have to re-build your rom using the ROM i.d. HP assigns.
The rom image can be obtained with the command "copy 'all:romX' to 'filename'". This results in a file with a "rom" extention.
Incidentally, the contents of ANY rom can be copied in this manner as long as you have the PMS LEX file on your system. I've copied the contents of my i/o rom in this manner. It consists of 3, 8K lex files which can't be copied any other way (at least not in a straight-forward way).
The trouble is that this command results in a ROM file, not a LEX file. So in order to burn this to an eprom, one would have to somehow convert the ROM file back into its constiuent files.
I'll bet HP had a nice setup on a larger computer that would read in the ROM file, process it, and burn it to an eprom.
Maybe for kicks I could call hp and ask them for a ROM i.d. # for my PMS and where I should send the image to for processing!
BTW, do you still have your PMS? Would you like to sell it? If I had two, then I would have a total of 32K in rom space which would allow me to copy complete roms (like i/o or visicalc) and run them on 2 PMS's (my wife gets a kick out of that acronym).