16 Nov
2011
16 Nov
'11
1:53 p.m.
Someone mentioned something about a Xeltek algorithm generator a while back. Any idea how
that one works? The NMC9306 algorithm seems to be non-functional even for a tube of 9306s
that seem to work fine in their target device (the aforementioned CQD-220). Looking at it
in a hex editor, the algorithms appear to be PE (either executables or libraries), and IDA
brings them in OK, but I'm not in the mood to reverse engineer more 8086 code to fix
this stupid ROM burner.
Worst case, maybe I'll build a quick and dirty 9306 communicator on my DE1. :-) I
already have a perfectly functional UART peek/poke unit.
- Dave
16 Nov
16 Nov
8:26 p.m.
On 11/16/2011 04:53 PM, David Riley wrote:
Someone mentioned something about a Xeltek algorithm
generator a
while back. Any idea how that one works? The NMC9306 algorithm
seems to be non-functional even for a tube of 9306s that seem to work
fine in their target device (the aforementioned CQD-220). Looking at
it in a hex editor, the algorithms appear to be PE (either
executables or libraries), and IDA brings them in OK, but I'm not in
the mood to reverse engineer more 8086 code to fix this stupid ROM
burner.
Worst case, maybe I'll build a quick and dirty 9306 communicator on
my DE1. :-) I already have a perfectly functional UART peek/poke
unit.
That's what I'd do.
Incidentally, it just occurred to me...Did you purchase that CQD-220
via eBay about two years ago?
-Dave
--
Dave McGuire
New Kensington, PA
17 Nov
17 Nov
5:47 a.m.
On Nov 16, 2011, at 11:26 PM, Dave McGuire wrote:
On 11/16/2011 04:53 PM, David Riley wrote:
Sounds about right. Maybe three. Was it yours? :-)
- Dave
Worst case, maybe I'll build a quick and
dirty 9306 communicator on
my DE1. :-) I already have a perfectly functional UART peek/poke
unit.
That's what I'd do.
Incidentally, it just occurred to me...Did you purchase that CQD-220 via eBay about two
years ago?
10:56 a.m.
On Nov 16, 2011, at 11:26 PM, Dave McGuire wrote:
Incidentally, it just occurred to me...Did you
purchase that CQD-220 via eBay about two years ago?
Haha, looking through my email archives, it looks like it was. :-) Thanks much for that;
it's serving me well now that I've un-buggered it (it was working fine when I got
it, of course).
For those wondering: It looks like you can direct the config program to write a value to
the EEPROM that will crash the 8086 when it loads the drive descriptors (tell it 0 disks
and 0 tapes, and it'll die when it tries to load the config because it uses a "do
{} while(--count)" sort of thing without bounds-checking). I've already fatally
programmed one of my new EEPROMs to do that by accident; good thing I socketed it!
- Dave
19 Nov
19 Nov
1:15 p.m.
On 11/17/2011 01:56 PM, David Riley wrote:
Yup. :)
Incidentally,
it just occurred to me...Did you purchase that
CQD-220 via eBay about two years ago?
Haha, looking through my email archives, it looks like it was. :-) Thanks much for that; it's serving me well now
that I've un-buggered
it (it was working fine when I got it, of course).
I'm glad you got it working again! It killed me to sell it; I did so
in a fit of thin-wallet syndrome. Plus, I still have another one so
it's ok. :)
-Dave
--
Dave McGuire
New Kensington, PA
17 Nov
17 Nov
8:26 a.m.
David Riley wrote:
Someone mentioned something about a Xeltek algorithm
generator a while back. Any idea how that one works? The NMC9306 algorithm seems to be
non-functional even for a tube of 9306s that seem to work fine in their target device (the
aforementioned CQD-220). Looking at it in a hex editor, the algorithms appear to be PE
(either executables or libraries), and IDA brings them in OK, but I'm not in the mood
to reverse engineer more 8086 code to fix this stupid ROM burner.
Worst case, maybe I'll build a quick and dirty 9306 communicator on my DE1. :-) I
already have a perfectly functional UART peek/poke unit.
- Dave
That would be I - I have the original algorithm generator software
(Rv1.0) that I bought from Xeltek back in 1990 (1992?). This was for the
UniPro, but did work with the SuperPro (hard wired to PC) - however it
is looking for the I/O port that the old PC card used - would have to
bypass that somehow...
However you could edit some parts of the algorithym in later versions
(SuperPro II) in the Edit menu, but I haven't looked at that in many
years, not needing that function, so no idea if it still exists for the
later burners.
John :-#)#
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