How to interface with parallel port in C++/Matlab

[linchan]

Hi all.do anyone know how I can interface with parallel port.How I can program for LPT1.
by regards.Im waiting for you response

 

[slavko]

outportb($378,0) inportb($379)

try read this:

Interfacing the Standard Parallel Port
**broken link removed**

and "PortTalk - A Windows NT I/O Port Device Driver"
**broken link removed**

 

[alijan]

lpt programs

In which language?

 

[linchan]

Re: LPT programs

I am working with c++ but i want codes for c++, pascal.

 

[alijan]

Re: LPT programs

C++:
#include<dos.h>
#include<conio.h>
#include<stdio.h>
main()
{
int a,b;
do
{
a=inportb(0x379); //Input a byte from port
b=a&0x10; //Mask
outportb(0x378,0);
}while(b!=0);
outportb(0x378,0xff)
{
Note:for input a word you must use import() for input a word, and outport() for out.
===================================================

Pascal:

Program
Uses crt;
Var
a,b:byte;
begin
clrscr;
repeat
a:=port[$379];
b:=a and $10;
port[$378]:=0;
until b=0;
port[$378]:=$FF;
End.


Note:for a word you must use portw[].

 

[linchan]

Re: LPT programs

tnx.
How about Matlab?
Do u know?

 

[alijan]

Re: LPT programs

Here you are(Communication with parallel port in Matlab) :


Dio=digitalio('parallel',1);
Hwlines=addline(dio,0:7,'out');
Out=getvalue(dio)

 

[linchan]

Re: LPT programs

tnx.can you explain abt this code?
bye

 

[alijan]

Re: LPT programs

If you want to know what kind of devices are connected to Matlab,you must use the following code:

out=daqhwinfo;
out.InstalledAdaptors

after running you can see the lines such as:
Ans+
'parallel'
'winsound'
>>