RX01 Bootstrap Loader

From: John B <dylanb_at_sympatico.ca>
Date: Sat Feb 12 18:37:36 2000

-----Original Message-----
From: Al Kossow <aek_at_spies.com>
To: classiccmp_at_classiccmp.org <classiccmp_at_classiccmp.org>
Date: Saturday, February 12, 2000 2:22 AM
Subject: Re: RX01 Bootstrap Loader


>"I needed to boot RX01s as that is a lot easier to run diagnostics across a
>bunch of 11/20s quickly... beats paper tape!."
>
>Will DXDP run in 4k?
>

I have been able to boot XXDP on the PDP-11/20, no problems... but.. (here
is where I have a problem)

I know the PDP-11/20 is booting RT-11v3.0B as it loads for about 20
seconds.... problem is I don't get anything on the teletype. When booted,
RT11 is waiting for keyboard input but does not read mine.



When I use an M9312 (ver bad fit) I can type, when I boot XXDP it boots fine
as well and I can type.

I am using a KL11 (yuck) which uses one vector for both send/receive... at
least thats what I thought I read. I just gave Jerome Fine RT-11v3.0B
distribution to archive so I don't have the disks handy to find out if there
was a special driver to support the KL11 teletype interface. I *really*
don't want to hook up mag tape or RK05s eight now so... does someone know if
there is a special driver for the KL11?

BTW: RT11 V4 does not boot at all.. well, I hear the RX01 reading a bit...
then it dies.

KL11 setup: addr: 777560 , vector: 60.


john


PDP-8 and other rare mini computers

http://www.pdp8.com
Received on Sat Feb 12 2000 - 18:37:36 GMT

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