Parallel Port Inteface

[raedbenz]

Hi
is it possible to interface with parallel (like turnig on and off LED's)port directly using C language,,???
or i need a special software or driver.??
thanks

 

[Analog]

No special software needed. Go to the EDN website and search in the design ideas. I've seen many examples there of exactly what you speak of.

 

[kchriste]

It is different under DOS, Linux and Windows. This page has all you need to know:
https://www.epanorama.net/circuits/parallel_output.html

 

[Sceadwian]

If you buffer the printer ports data pins with an 8 bit latching register using the par ports write pulse as a latch enable the register will always contain the last valid data byte written to the parrallel port, this should let you use the parport on an OS under any circumstances as long as you're allowed to write whole bytes to the port.

 

[aibelectronics]

reply

you'll probably only need a suitable dll if you happen to be working on the XP platform. a popular one is the inpout32.dll. you can study parallel port tutorials (in c) /* a good one is the one by craig peacock */
study also works and software written by others; they're everywhere on the web.