smaller HP 82166A with 32-pin connector

[KimH]

I have a handful of these 82166A modules and have decided to spend some time on them the last few (and next) days.

I can Write to the port, but when connecting 2 of these with the small connector board 82166-90013 i struggle to READ anything on the port.

I have looked at the Control the World.... and i see the R0-R3 being key, but have not found a way to READ from the 8-bit bus.

I send Characters to Module 1 and want to read them from Module 2 - ENTER :LOOP ; X$ - nothing happens it gets stuck.

I have been looking to find a copy of Christopher Klugs book - anyone know where to get the book?

Can anyone here help, please?

/Kim