Wolfe, Julian wrote:
Well, I got my 11/34 working, it comes up to a console
and it all works
great.
I have a second M7800 card but I'm not real sure how to configure the
address and interrupt vectors on the card. I did figure out that:
A. I have the 4.608 mhz crystal, allowing me to do 9600 baud with it.
B. I removed the two caps that were in place according to the manual "FOR
110 and 150 BAUD ONLY"
C. How to set the 9600 baud rate for both send and receive
D. How to set 1 stop bit, no parity, and 8 data bits.
So I'm good to go with it except for two problems:
1. When it is put in to replace the DL11-W (which would be much easier to
reconfigure later, what with its switches), it causes the machine to halt at
173524 on powerup (this also happened before I removed the two caps, so it's
not that).
I just want to set this thing up as the serial console, for 9600, N/8/1.
Can someone help me out?
The M7800 prints are online at
http://bitsavers.vt100.net/dec/unibus/DL11_EngrDrws.pdf
(or the -YA at
http://bitsavers.vt100.net/dec/unibus/DL11_schem_Mar78.pdf )
The user manual is available at
http://bitsavers.vt100.net/dec/unibus/EK-DL11-OP-001_Sep76.pdf
Chapter 3 should tell you everything you need to know.
I don't own an M7800 (maybe someone who does and is using it as a console can comment
on
any known problems) but the docs are all pretty straightforward.
Thanks
Julian