PDP-11/23 Debugging

Roe Peterson roeapeterson at gmail.com
Mon Nov 17 11:19:29 CST 2014

> On Nov 17, 2014, at 8:56 AM, Ben Sinclair <bensinc at gmail.com> wrote:
> Thanks for all of the info! I was going off a PDP-11/23 manual I found that
> seemed to be for a complete system, and it was saying the aux switch was
> for power (power to an RL02 in their example). I didn't realize it was
> configurable.
> I wasn't clear though on the discussion about the line clock... If my
> machine is having problems with the line clock, would I need to do anything
> to the aux switch, other than leave it in a certain position?

Because if you are getting unexpected LTC interrupts with the AUX switch in the up position, it probably means there is something wrong with the interrupt enable circuitry in the LTC itself.

> .com

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