15 Dec
2017
15 Dec
'17
10:49 a.m.
It's on my list of things to do -- you can run external clock into DL11 and
DLV11-J style connectors, and IM6402 UARTs are supposed to go up to 2 mbit,
so somewhere between 38400 and 2 mbit should be possible. I believe it'll
require external RS-232 transceivers due to the design of the ones used on
various DEC boards. As you say, whether or not the bus/CPU can keep up is
another matter! Figure if I can get any real improvement out of it, I'll
lay out a board and provide high-speed kits.
Anyone know of a 40-pin UART with a FIFO? :)
Thanks,
Jonathan
On Fri, Dec 15, 2017 at 1:34 PM, Ethan Dicks via cctalk <
cctalk at classiccmp.org> wrote:
On Fri, Dec 15, 2017 at 9:38 AM, systems_glitch
<systems.glitch at gmail.com> wrote:
vtserver does indeed work for transferring RL02
contents to a binary
image,
suitable for use with SIMH or E11 or whatever.
Yep. I backed up the RD52 in a new-to-me MicroPDP-11 and it took hours.
Be advised, it takes a *long*
time, even on a 11/73 with the serial port turned up to 38400 bps.
Has anyone done any console serial port hacking for speed on Qbus or
Unibus? On something integrated like a KDF11-B it might not be so
easy, but maybe a DLV11J or a DL11W?
I'd think hitting 115200 would be really sweet, if everything can keep
up. Totally worth some experimentation to see what part gives out at
ludicrous speed.
-ethan