question in dealing with LPT IO pins

[asrock]

hello every one


i have a question about reading lpt data that PIC control them ,
& i made a software to read from lpt ,,, but the issue in connecting PIC with lpt !


i mean >>> can i connect LPT pins directly to PIC pins (such as PORTA) ?!!

or are there any equipments that i must connect before ?

i use PIC16f877 & MikroC ,,,

so any one here can help me with any schematic plz

gratings

 

[HTA]

Maybe this thread will give you some help to find out: https://www.edaboard.com/threads/273541/

Enjoy your design work!

 

[asrock]

Maybe this thread will give you some help to find out: https://www.edaboard.com/threads/273541/

Enjoy your design work!

thanks a lot mr.HTA for ur link

here i draw a schematic how to change the pin1 of lpt as PIC rb0 ,,

when i trigger bc337 , the state of pin1 is "1" , else state is "0"

So is this schematic right?? ,, i don't test it in fact ,but i would know if it is right ,,

what's is your opinion ?

 

[HTA]

Hi Asrock,

Pin 2 of the printer port is an output and if you want to generate an interrupt signal on PIC rbo it need to drive the base of the transistor via a resistor to limit the current. The collector should e connected via a resistor to 5V and drive the PIC rb0 input.

Enjoy your design work!