Kaluga/Mauch DRO board: hardwire bit 5

"Dan Mauch" <dmauch@...> wrote:

>Did you or Steve ever figure out why the program would only
>work on certain bi-directional parallel port and not others.?

"A. G. Eckstein" <axtein@...> wrote:

> The problem lies in the fact that some of the ports requires that bit 5 of
> the control port has to be set. This is what the A version of the program
> does. I find that on my laptop, this bit is hard coded and cannot be
> changed. Yet the desktops that I have tried all need this bit to be set
> before the program will run. This can be done in the 4.1 version by using
> the "Program Version" option which has been added.

Perhaps a jumper can be added to the board to replace 'reading bit 5'
(which apparently must be set) with a hardwired 'logic 1'. Then perhaps
the various implementations of parallel ports will work with just one
version of the software.

Doug Fortune