I hope someone can shed some lite on this problem i'm having.
i'm trying to control the output pins 2-9 well any pin would be nice
i cant seem to shut the power off on 23456pins it is allways on no mater what ,,all are puting out 5v except pin 5 its at 2.5v
I have tryed this program called parallel port debug tool well for one
thing when i turn on all that is 23456789 nothing hapens to the 23456
but what does happens is 9 10 11 12 13 and 24 come on.....
i gess my question is how do you use 23456789 when 23456 wont shut off.
try what i suggested in my second post, to check you are writing to the right adress.
Also, try booting to MSDOS directly without going to windows (press F8 when the computer says windows is starting, then select MS-dos mode)
and then try the debug O 378 0 thing. It's possible windows keeps a lock on the port.
if all else fails try to check the port is still functional (can you print with it)
if i'm unterstanding you good you only want to
send signals to the parallel port/serial port only for putting the pins high or low or to read the status...??
there is a dll in the WWW whit wich you easly can contol all the ports form your computer also game port..
it used in visual basic.
for best performance of that knid of dll and programs use win98se or win95..