parallel port clock pin

[tooh83]

parallel port interfacing bibin john rapidshare

hi
i need to know if there is a pin on parallel port on which i can c the parallel port
clock when writing or reading data from port .. the parallel port is in ECP mode
.. thanx in advance

 

[IanP]

parallel port clock

Parallel port pin definitions on the PC for LPT1 are as follows:

Pin 1 = -Strobe from PC(not the strobe on main menu)
Pin 2 = +Data bit 0 from PC
Pin 3 = +Data bit 1 from PC
Pin 4 = +Data bit 2 from PC
Pin 5 = +Data bit 3 from PC
Pin 6 = +Data bit 4 from PC
Pin 7 = +Data bit 5 from PC
Pin 8 = +Data bit 6 from PC
Pin 9 = +Data bit 7 from PC
Pin 10 = -Acknowledge to PC
Pin 11 = +Busy to PC
Pin 12 = +P.End (out of paper) to PC
Pin 13 = +Select to PC
Pin 14 = -AutoFeed from PC
Pin 15 = -Error to PC
Pin 16 = -Initialize Printer from PC
Pin 17 = -Select Input from PC
Pin 18-25 = Ground

If you need a CLOCK you wll have to program (VB, Q-Basic and so on) one of the 8 Data lines to output a square wave of required frequency ..

Regards,
IanP

 

[bauer]

Here is a Book on the subject..
Parallel Port Complete by Jan Axelson



Product Details
Paperback: 343 pages
Publisher: Lakeview Research; Bk&Disk edition (February, 1997)
Language: English
ISBN: 0965081915
Product Dimensions: 10.0 x 7.0 x 0.8 inches

Book Description
A guide to programming, interfacing, and using the personal computer's parallel printer port. Includes circuit designs and Visual-Basic code examples, plus tips on how to get the most out of the port, including the enhanced (EPP) and extended-capabilities (ECP) ports found on most new systems. Includes disk

Password:: www.elektrotekno.com
**broken link removed**

 

[jhbbunch]

There is no clock pin. Just control pins that will toggle on or off to signify valid data on the line and handshakes and the like. Depends on what mode you are in. You wouldn't want data clocked because in a preemptive multitasking OS like Windows your program would not be able to handle clocked data. You get preempted once and you're screwed. Much better to use handshaking.

 

[yogi]

ECP is complicated. Go for SPP
It is enough for reading
Wht is ur application
refer
parallel port complete
MY EXPERIENCE IN PARALLEL PORT INTERFACING
yahoo group-booksbybibin,parallelport,interfacing

Bibin John
www.bibinjohn.tk

 

[mahaju]

Hi Bauer
I downloaded the rar file from rapidshare but it does not get decompressed. It says invalid password. I have tried both WinRAR and 7Zip but I could not get it decompressed with the password
www.elektrotekno.com
Please please please help

Thanks in advance

 

[master_picengineer]

Hi Bauer,
could you please tell us the password ?