> =

> when in Pikdev set not inverted D6 (8) pin to 0V
> on the protoboard side of the wire that is disconnected from enything
> I measured -1.59V with respect to ground in the LPT port
> =

> when in Pikdev set not inverted D6 (8) pin to 13V
> on the protoboard side of the wire that is disconnected from enything
> I measured -2.05V with respect to ground in the LPT port
> =


Something is wrong here. There is no negative voltages with respect to grou=
nd =

in the LPT port connector. I think you have got the pin numbering wrong.

Here is one image (of many) with pinout and numbering of the LPT port:

<http://slotcars.carlsoncomputers.com/Articles/lpttest/lpttest.asp>

/Ruben


=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D
Ruben J=F6nsson
AB Liros Electronic
Box 9124, 200 39 Malm=F6, Sweden
TEL INT +46 40142078
FAX INT +46 40947388
ruben@pp.sbbs.se
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D

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