2 May
2015
2 May
'15
10:41 p.m.
* On Sat, May 02, 2015 at 07:41:02PM -0700, Glen Slick <glen.slick at gmail.com>
wrote:
Do you have access to an EPROM programmer? Before
someone turned up the
manual for the TDL-12 I found enough clues to figure out how to start the
onboard DMON configuration utility be examining the contents of the EPROM.
A dump of the EPROM should also show whether or not there is even an
onboard configuration utility.
A great idea, and yes I do. I've made dumps of the ROM (an Intel 2764)
here:
http://www.loomcom.com/retrocomputing/pdp11/tdl11/
The ROM is simply labelled "IAX 3.2". I ran `strings` on it and it
confirms there is some kind of utility intended for SCSI, and there
appears to be RL01 and RL02 support, so maybe it's more like the
TDL-12 than I thought it was!
Are the major ICs a Z-80 CPU, plus a couple of 8255s
instead of a more
typical NCR 5380 SCSI controller?
That's exactly right, yes.
-Seth