Jim wrote:

snip

The general problem is going to be that WINXP, 2000, Vista, and NT make
it difficult to use the printer port pins directly. Not impossible, but
certainly a problem.


Please see http://www.beyondlogic.org/porttalk/porttalk.htm for the 'allowio
driver' for interrupt-based parallel port access. The 'JWA' logic analyzer
software 'digitrace' uses this on NT-based Windows with good results.
The logic analyzer software is at:
http://www.xs4all.nl/%7Ejwasys/old/ select 'DigiTrace' in the left frame.

Regards,

Michael

Micheal Wrote:

Jim wrote:

The general problem is going to be that WINXP, 2000, Vista, and NT
make it difficult to use the printer port pins directly. Not
impossible, but certainly a problem.


Please see http://www.beyondlogic.org/porttalk/porttalk.htm for the
'allowio
driver' for interrupt-based parallel port access. The 'JWA' logic analyzer
software 'digitrace' uses this on NT-based Windows with good results.


I had problems using allowio for a visual basic program I wrote... I
kept getting a process ID of 0 no matter what I tried.

Also, I believe this does not work for Vista computers. Vista locks down a
lot more of the computer system.


Jim
N6BIU



--

23:27 Pacific Time Zone
Oct 23 2007

International Time
06:27 UTC
24.10.2007