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i wrote the program for parallel port communications but im having difficulties in building circuit
do i have to connect data pins of both parallel ports 1 to 1 or parallel to status?as i have to connect leds in between to show data communication.
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Sergey Alexandrovich Kryukov 18-May-11 1:10am    
Not clear. What's especially not clear is: how it can be a problem is you say "I wrote...". You already did, so... what's up?
--SA

1 solution

There is an article here that covers all of the basics of using the parallel port, including hardware connections. For code, it uses C#, but since that calls inpout32.dll, that shouldn't be a problem for you.
I/O Ports Uncensored - 1 - Controlling LEDs (Light Emiting Diodes) with Parallel Port[^]
 
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Olivier Levrey 18-May-11 3:59am    
I already saw this article. Good link. 5.

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