2 May
2012
2 May
'12
12:46 p.m.
On 02/05/2012 11:16, Holm Tiffe wrote:
Pete Turnbull wrote:
Yes, it is.
See
http://www.dunnington.u-net.com/public/DECROMs for more.
Is that your site? Here are the Images:
Thanks! I'll upload them and edit the list later.
...looked at the data(cat 23-395E5.bin 23-396E5.bin
>all.bin and vis versa)
that looks that they have mangled adress/data lines somewhat, nothing
readably there..
Same on the 23-168E5.bin and 23-169E5.bin that appears to be on Olegs
board. (see below)
They're low-byte and high-byte of 16-bit words, so unless you merge
them, it will look a little odd :-)
So I'm soldered an 18,432Mhz Xtal in (haven't
found 18.00 in my
stock jet) and at least the continous selftest from the ROMs is running
flawlessly (~860 passes w/o Error).
Map is displaying 18.429 MHz CPU Options: FPA.
I did that to two of mine, but one had to be downgraded again because
although it ran OK on it's own, it gave mysterious errors with real
software on a real system.
The design speed of the J11 was originally 20MHz, but it was a long time
(years) before DEC got any that would actually meet that spec under all
conditions.
--
Pete Peter Turnbull
Network Manager
University of York