20 Feb
2008
20 Feb
'08
12:36 a.m.
Steve Robertson wrote:
[ how the loader works snipped ]
Sorry, I can't find the perl script right now. I moved a couple of years ago
and can't find anything :-) . If you are keen on pursuing this, let me know
and I'll try to hack something together for you.
Well, what I'm after is finding out if this is what an HP 264x terminal
sends. I guess I'll read the kernel source some.
There are no \n \r etc in there? just a continuous hex stream? That
should be simple enough to handle. I'll try digging out the loader.
The ROM's I have are the 12992C mini cartridge
tape loader type. My
system(s) originally had a serial terminal attached. The terminal had a
minicartridge drive in it for mass storage. The operator would initiate the
ISL on the 1000, then send the data from the terminal to the 1000 thus
booting it. In my solution, the PC just emulates the terminal.
I may have a spare ROM if you beg a little :-)
:) I may eventually. :)
BTW: Has anyone found a way to a copy the ROMs? I have
tried numerous
equivalent devices but, haven't had any success replicating them.
Jay West can do it. Not sure what he uses to copy them though.
Don't know if you saw in my other email that I was able to use the tape
loader rom to load hpbasic1.abs tonight! (well, last night as it's
morning now) It was just a timing issue. I wrote a little C app that
sends the file slowly while logging each block to stderr. I can likely
reduce the usleep() time and still have it work reliably. Fun times!
--
Tim Riker - http://Rikers.org/ - TimR at Debian.org
Embedded Linux Technologist - http://eLinux.org/
BZFlag maintainer - http://BZFlag.org/ - for fun!