input to parallel port prob

tariq7868 · 06-11-2009, 01:32 AM

hello.. the prob is that when give status port a certain input and also to control port through open collector hex invertor,, the data output automatically switches to decimal value of '4' i.e (00000100) .. and also the 'init' (pin 16) of control port is not responding to any value. however when i give any value other than '0' to control port (0x37a) the init value responds...

ps: plz dont just reply telling to look for the query on parallel port in previous posts b/c i have and havnt found any so far. and also i hav googled as well..

thanks

MacGyver · 06-11-2009, 02:27 AM

Considering you pretty much ignored the fact this is a C forum and your question is about parallel ports and not C, I'll ignore your statement that you googled.

So with that said, find the documentation and check your program again. I'm not about to go rush off to figure out what you've done wrong... which is probably the problem. Oh, and one more thing... it helps to tell what "certain input" is causing unexpected behavior when you want to complain about it. Are we supposed to guess what input was given?

quzah · 06-11-2009, 02:38 AM

I always use my psychic powers to figure out what is wrong, and assume they'll use theirs to see what the answer I came up with is!

Quzah.

**laserlight** · 06-11-2009, 02:54 AM

Moved to Tech Board.

tariq7868 · 06-11-2009, 12:35 PM

its ok... the problem is solved.i was using windows xp and borland c compiler..it was just that that there should be 1 assigned to every line of the output of control port then input values can fed...but thanks anyway..

06-11-2009, 01:32 AM	#1
tariq7868 Registered User Join Date: Jun 2009 Posts: 9	input to parallel port prob hello.. the prob is that when give status port a certain input and also to control port through open collector hex invertor,, the data output automatically switches to decimal value of '4' i.e (00000100) .. and also the 'init' (pin 16) of control port is not responding to any value. however when i give any value other than '0' to control port (0x37a) the init value responds... ps: plz dont just reply telling to look for the query on parallel port in previous posts b/c i have and havnt found any so far. and also i hav googled as well.. thanks
tariq7868 is offline

06-11-2009, 02:27 AM	#2
MacGyver Deathray Engineer Join Date: Mar 2007 Posts: 3,211	Considering you pretty much ignored the fact this is a C forum and your question is about parallel ports and not C, I'll ignore your statement that you googled. So with that said, find the documentation and check your program again. I'm not about to go rush off to figure out what you've done wrong... which is probably the problem. Oh, and one more thing... it helps to tell what "certain input" is causing unexpected behavior when you want to complain about it. Are we supposed to guess what input was given? __________________
MacGyver is offline

06-11-2009, 02:38 AM	#3
quzah +++ OK NO CARRIER Join Date: Oct 2001 Posts: 10,258	I always use my psychic powers to figure out what is wrong, and assume they'll use theirs to see what the answer I came up with is! Quzah. __________________ Hundreds of thousands of dipshits can't be wrong. Are you up for the suck?
quzah is offline

06-11-2009, 02:54 AM	#4
laserlight C++ Witch Join Date: Oct 2003 Location: Singapore Posts: 10,352	Moved to Tech Board. __________________ C + C++ Compiler: MinGW port of GCC Build + Version Control System: SCons + Bazaar Look up a C/C++ Reference and learn How To Ask Questions The Smart Way
laserlight is offline

06-11-2009, 12:35 PM	#5
tariq7868 Registered User Join Date: Jun 2009 Posts: 9	its ok... the problem is solved.i was using windows xp and borland c compiler..it was just that that there should be 1 assigned to every line of the output of control port then input values can fed...but thanks anyway..
tariq7868 is offline

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Question on Accessing parallel port	Luciferek	C++ Programming	6	06-16-2008 05:36 PM
Parallel Port: Sending the signals as binary	h3ro	Tech Board	7	08-25-2007 12:22 PM
About aes	gumit	C Programming	13	10-24-2006 03:42 PM
programming the parallel port to control device	griffmaster2005	C Programming	3	02-14-2005 07:50 AM
Help needed: Output to Parallel port.	Ingsy	C Programming	4	10-10-2001 12:06 PM