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<p align="center"><a href="http://www.lvr.com/">Lakeview Research home</a> > Parallel Port
Central </p>
<h1 align="center">Parallel Port Central</h1>
<p align="center"><strong>A collection of files and links to material about
the PC's parallel port, <br>
including ECP, EPP, bidirectional, and IEEE-1284 modes (and other I/O
ports as well).</strong></p>
<p align="center"><strong>brought to you by Jan Axelson</strong></p>
<p align="center"><a href="#Basics">Basics</a> | <a href="#Enhanced%20and%20Extended%20Ports">ECP
& EPP</a> | <a href="#Hardware">Hardware</a> | <a href="#Troubleshooting">Troubleshooting</a>
| <a href="#ConnectingTwoPCs">Connecting 2 PCs</a></p>
<p align="center"><a href="#Enhanced%20and%20Extended%20Ports"></a><a href="#UsingPrinters">Using
Printers</a> | <a href="#Enhanced%20and%20Extended%20Ports"></a><a href="#Programming">Programming</a><a href="#Cables"></a>
| <a href="#Books">Books</a></p>
<h2><img src="parport_fichiers/ppccover.gif" alt="Parallel Port Complete" align="left" border="1" height="106" hspace="10" width="75">Parallel
Port Complete</h2>
<p>For all you ever wanted to know about the parallel port, order a copy
of <a href="http://www.lvr.com/parprtib.htm"><em><strong>Parallel Port Complete</strong></em></a>.
Read <a href="http://www.lvr.com/parprtib.htm#Chapter1">Chapter 1</a> on-line. </p>
<h2><a name="Basics"></a>The Basics</h2>
<ul>
<li>
<p><a href="http://www.lvr.com/jansfaq.htm">Jan's Parallel Port FAQ</a> has answers to
frequently asked questions about using, interfacing, and programming
the parallel port in all of its modes.</p>
</li>
<li>
<p><a href="http://www.lvr.com/files/ibmlpt.txt">The parallel port FAQ </a>. Basics about
the parallel port and how to use it, by Zhahai Stewart. (50K)</p>
</li>
<li>
<p>The <a href="http://peripherals.miningco.com/">Computer Peripherals
Guide</a> at about.com is a good place to start if you're looking
for help in using standard peripherals such as printers and drives.
Hosted by Rick Russell.</p>
</li>
<li>
<p><a href="http://www.phanderson.com/">Control and data acquisition</a>
information and projects, from Peter H. Anderson and his students.
Code examples in C.</p>
</li>
<li>
<p><a href="ftp://ftp.armory.com/pub/user/rstevew/LPT/">Various LPT
documents.</a> Steve Walz has collected a useful set of parallel-port-related
FAQs and information.</p>
</li>
<li>
<p><a href="http://www.beyondlogic.org/index.html#PARALLEL">Beyond Logic</a>
has tutorials (including EPP and ECP), projects, and a debug tool
with source code. From Craig Peacock.</p>
</li>
<li>
<p><a href="http://www.doc.ic.ac.uk/%7Eih/doc/par/">Interfacing to the
IBM-PC Parallel Printer Port</a>. General information, plus several
projects.</p>
</li>
<li>
<p><a href="http://www.epanorama.net/links/pc/index.html">Tomi Engdahl's
PC Hardware pages</a>. Many links.</p>
</li>
<li>
<p><a href="http://www.pcwebopedia.com/Hardware/Ports_and_Interfaces/">PC
Webopedia</a>. Definitions and many links.</p>
</li>
<li>
<p><a href="http://www.torque.net/linux-pp.html">External Parallel Port
devices and Linux</a>. Many links and info about the Linux-parport
mailing list. From Grant Guenther.</p>
</li>
<li>
<p>If you have a (usually old) device that sends data to a line printer,
and you want to instead read the data into a PC, you have a couple
of options. One is to buy or make a parallel-to-serial converter and
read the data at a serial port, using a terminal emulator or software
you write. <a href="http://www.qi.fcen.uba.ar/materias/iqi/paralel1/home.clear.net.nz/pages/kheidens/lptcap/lptcap.htm">LPTCAP</a>
is another approach, consisting of circuits and software for reading
the data into a PC's parallel port. From Kris Heidenstrom. Also see
<a href="http://www.jadtechcorp.com/hawk.htm">JADTech's Silent Hawk</a>.</p>
</li>
<li>
<p>A tutorial on <a href="http://www.cnckits.com/">motion control from
the parallel port</a>. From cncKITS.</p>
</li>
</ul>
<ul>
<li>
<p>Some web pages in Spanish: <a href="http://www.angelfire.com/pa2/jcgr/tecnica/PP/pp.htm">El
Puerto Paralelo</a> from Juan Carlos Galarza Roca. <a href="http://www.modelo.edu.mx/univ/virtech/circuito/paralelo.htm">El
puerto paralelo de la PC</a> from Virgilio Gmez Negrete. <a href="http://www.pchardware.org/puertos/paralelo.php">El
puerto paralelo</a> from Javier Olcina and David Romero. </p>
</li>
</ul>
<h2><a name="Enhanced and Extended Ports"></a>Enhanced and Extended Ports</h2>
<p>Including the bidirectional (PS/2) port, extended capabilities port (ECP),
and enhanced parallel port (EPP), and the IEEE-1284 standard that descibes
them all.</p>
<h3>General Information</h3>
<ul>
<li>
<p>A table showing the <a href="http://www.lvr.com/files/pppinout.pdf">pinouts</a> of all
three of the commonly used parallel-port connectors, including the
25-pin D-sub, the 36-contact Centronics connector, and the new IEEE-1284C
connector. (6K PDF (Acrobat) file)</p>
</li>
<li>
<p><a name="Warp Nine Engineering"></a><a href="http://www.fapo.com/">Warp
Nine Engineering</a> has descriptions of the EPP, ECP, and other IEEE-1284
modes. Warp Nine's products include ECP/EPP parallel-port cards, EPP and
ECP drivers, and a peripheral interface controller that provides the
logic between a general-purpose microcontroller and a PC's parallel
port, to enable a peripheral to support EPP and ECP modes. Also
check here for the latest information on IEEE standards relating to
the parallel port. And there's a link to <a href="http://www.fapo.com/files/ecp_reg.pdf">Microsoft's
document describing ECP mode</a>. (325k, PDF file).</p>
</li>
<li>
<p>Various files relating to the IEEE-1284 standard, from <a href="ftp://ftp.lexmark.com/ieee/">Lexmark's
FTP site</a></p>
</li>
<li>
<p>Information on ordering standards from <a href="http://stdsbbs.ieee.org/">IEEE</a>.
The title of the parallel port standard is <em>1284-1994 IEEE Standard
Signaling Method for a Bidirectional Parallel Peripheral Interface
for Personal Computers</em>.</p>
</li>
<li>
<p><a href="http://www.smsc.com/ftpdocs/chips.html">Standard Microsystems
Corp.</a> has preliminary versions of the daisy-chain specification
and EPP BIOS, plus drivers and source code for SMC chips.</p>
</li>
<li>
<p><a href="http://www.transdigital.net/">Trans Digital</a> has a high-speed
universal parallel-port product.</p>
</li>
</ul>
<h2><a name="Hardware"></a>Hardware</h2>
<h3>Boards</h3>
<ul>
<li>
<p><img src="parport_fichiers/new.gif" height="12" width="31"><a href="http://www.winfordeng.com/products/">Winford
Engineering</a> has very handy breadboard adapters and breakout boards
with DB-25 connectors.</p>
</li>
<li>
<p><a href="http://www.zanthic.com/">Zanthic</a> has inexpensive proto
boards for parallel-port interfacing with EPP handshaking. Some also
have a CAN interface.</p>
</li>
<li>
<p><a href="http://www.byterunner.com/">Byte Runner Technologies</a>
has parallel-port expansion cards, both ISA and PCI-based.</p>
</li>
</ul>
<h3>Chips</h3>
<p>The data sheets for parallel-port controller chips include timing diagrams,
register assignments, and other useful details about accessing and using
the new modes. <em>PC-side</em> chips are for use in PCs; <em>peripheral-side</em>
chips are for use in peripherals.
</p><ul>
<li>
<p><a href="http://www.amd.com/epd/29k/202_ds/202_ds.pdf">AMD's Am29202
processor</a> (PDF), for use in EPP/ECP (peripheral-side).</p>
</li>
<li>
<p>National Semiconductor has a variety of <a href="http://www.national.com/appinfo/advancedio/">Super
I/O</a> chips that include an IEEE 1284-compatible parallel port with
EPP and ECP modes. (PC-side)</p>
</li>
<li>
<p><a href="http://www.fairchildsemi.com/pf/74/74VHC161284.html">Fairchild's
74VHC161284 Transceiver</a> contains eight bidirectional data buffers
and eleven control/status buffers to implement an IEEE-1284 Level
2 interface. Outputs on the cable side can be configured to be either
open drain or push-pull.</p>
</li>
<li>
<p><a href="http://www.smsc.com/">Standard Microsystems Corp.,</a> (SMSC),
another manufacturer of EPP/ECP parallel-port chips. (PC- and peripheral-side).</p>
</li>
<li>
<p><a href="http://www.exar.com/products.php?areaID=3">Exar/Startech</a>'s
ST78C34 and ST78C36 are EPP/ECP chips. Look under Products/Communications/General
Purpose. (PC-side). </p>
</li>
<li>
<p><a href="http://www.ti.com/sc/docs/msp/irda/selguide.htm#pir552">Texas
Instruments' TL16PIR552</a> includes a PC-side ECP+EPP, plus a dual
UART and IrDa interface.</p>
</li>
<li>
<p><a href="http://www.fapo.com/1284pic.htm">Warp Nine's W91284PIC</a>
supports all modes, plus daisy-chaining and negotiating. (peripheral-side)</p>
</li>
<li>
<p><a href="http://www.winbond.com/e-winbondhtm/partner/b_2_d_2.htm">Winbond</a>
has PC-side chips.</p>
</li>
</ul>
<h3>Cables</h3>
<ul>
<li>
<p><img src="parport_fichiers/new.gif" height="12" width="31"><a href="http://www.geocities.com/keinhong/nfpt/">NFPT
(No-Frills Parallel Transfer)</a> includes a DOS program with source
code and instructions for building an ECP test cable for transferring
files between two PCs using ECP mode. From Kein-Hong Man.</p>
</li>
<li>
<p>Denis Kondakov has figured out <a href="http://www.lvr.com/files/ecp-dcc.zip">how to
do Direct Cable Connection ECP transfers between PCs</a> using a simple,
home-brewed cable configuration. It requires a patch to paralink.vxd
(zip file, 36k).</p>
</li>
<li>
<p><a href="http://www.lpt.com/lpt/">Parallel Technologies'</a> Universal
Cable contains active circuits for high-speed parallel-port communications
using Windows 95/98's Direct Cable Connection. Parallel Port Development
Kits are available as well.</p>
</li>
<li>
<p>Trans Digital's <a href="http://www.transdigital.net/">Universal
Parallel Port</a> is a high-speed, long-distance link between parallel-port
peripherals and a PC-ard (PCMCIA) slot.</p>
</li>
<li>
<p>If you want to connect your parallel printer to a USB port, USBGear
has a <a href="http://www.usbgear.net/item_157.html">True-Bi Directional
USB Printer Cable adapter</a> (USBG-1284Bi) that claims to support
bidirectional printer communications. (Most other adapters don't.)</p>
</li>
</ul>
<h2><a name="Troubleshooting"></a>Troubleshooting</h2>
<ul>
<li>
<p><a href="http://www.lvr.com/files/para14.zip">Para14.zip</a>. Parallel-port diagnostic
and information utility from Parallel Technologies. (88K)</p>
</li>
<li>
<p><a href="http://www.sysinternals.com/ntw2k/freeware/portmon.shtml">PortMon</a>
monitors and displays all serial and parallel port activity on a system.
From Mark Russinovich.</p>
</li>
<li>
<p><a href="http://www.jadtechcorp.com/hawk.htm">JadTech's Silent Hawk</a>
products non-obtrusively capture parallel-port data. The Silent Hawk
III Model 1284 functions as a protocol analzyer.</p>
</li>
<li>
<p><a href="http://www.qualitylogic.com/device_test.html">QualityLogic</a>
has a protocol analyzer and test suite for IEEE-1284 links as well
as a variety of products for printer testing.</p>
</li>
</ul>
<h2><a name="ConnectingTwoPCs"></a>Connecting Two PCs</h2>
<p>Connecting two PCs via their parallel ports requires a special cable.
For software, you can use Windows 95/98's Direct Cable Connection, a third-party
product, or write your own program to do the transfers. To find out about
Direct Cable Connection, click F1 on the desktop and search for Direct
Cable Connection.</p>
<ul>
<li>
<p><a href="http://www.kime.net/directcc/index.html">The Connect Pages</a>
have information on how to connect two PCs running various combinations
of operating systems, using serial and parallel ports. From Kime.Net.</p>
</li>
<li>
<p>Symantec is one of many sources for the <a href="http://service1.symantec.com/SUPPORT/ghost.nsf/docid/1998121609495725">pinout
for a LapLink cable</a> used in PC-to-PC transfers.</p>
</li>
<li>
<p>Sewell Development's <a href="http://www.sewelld.com/">Fast Lynx</a>
works with everything from DOS through Windows XP.</p>
</li>
<li>
<p><a href="http://www.laplink.com/products/llgold/overview.asp">Laplink</a>
and <a href="http://enterprisesecurity.symantec.com/products/products.cfm?productID=2">pcAnywhere</a>
support PC-to-PC transfers.</p>
</li>
<li>
<p>Also see the information under <a href="#Cables">Cables</a>.</p>
</li>
</ul>
<h2><a name="UsingPrinters"></a>About Using Printers</h2>
<ul>
<li>
<p><a href="http://support.microsoft.com/support/search/c.asp">Microsoft's
Knowledge Base</a> has a lot of printer-related articles. These are
just a few: <br>
</p>
<blockquote>
<p><a href="http://support.microsoft.com/support/kb/articles/Q154/0/78.asp">HOWTO:
Send Raw Data to a Printer Using the Win32 API from Visual Basic</a>.
Article ID: 154078. <br>
<a href="http://support.microsoft.com/support/kb/articles/Q96/7/95.ASP">HOWTO:
Use PASSTHROUGH Escape to Send Data Directly to Printer</a>. Article
ID: 96795. <br>
<a href="http://support.microsoft.com/default.aspx?scid=kb;en-us;160129">HOWTO:
Get the Status of a Printer and a Print Job</a>. Article ID: 160129.</p>
</blockquote>
</li>
<li> <a href="http://www.fixyourownprinter.com/">Do-it-yourself printer
repair</a>.</li>
</ul>
<ul>
<li>The <a href="http://www.elabinc.com/printer.htm">EDE1400 Serial to
Parallel-Printer Converter</a> chip converts serial data to a parallel
interface suitable for connecting to parallel printers. The chip generates
printer-control signals as monitors printer-status signals. From E-Lab
Digital Engineering.</li>
</ul>
<h2><a name="Projects"></a>Various Projects</h2>
<p>Projects that use the parallel port or an I/O chip like the 8255 Parallel
Peripheral Interface chip. </p>
<ul>
<li>
<p><a href="http://www.boondog.com/%5Ctutorials%5C8255%5C8255.htm">Connecting
an 8255 Parallel Peripheral Interface to the ISA bus</a>. From Boondog
Automation. </p>
</li>
<li>
<p><a href="http://www.pjrc.com/tech/8051/ide/wesley.html">How to connect
an IDE disk to a microcontroller using an 8255</a>. by Peter Faasse.
I've included this one because of many requests for info about IDE
interfacing.</p>
</li>
<li>
<p>GKDesign's <a href="http://www.geocities.com/SiliconValley/Lakes/7156/">Universal
IR Controller for a PC</a> includes source code and a circuit for
reading and sending infrared remote-control signals via the parallel
port.</p>
</li>
</ul>
<ul>
<li><a href="http://pinewood.hmpg.net/">World's Least Expensive Pinewood
Derby Timer</a>. From James H. Brown.</li>
</ul>
<h2><a name="Programming"></a>Programming</h2>
<p>There are various ways for applications to access the parallel port and
other I/O ports in PCs, including directly accessing port addresses, communicating
with a driver that accessing port addresses and using Windows' built-in
drivers.</p>
<p>Under Windows 3.x/95/98/Me, applications can read and write directly
to port addresses. Use your compiler's built-in functions (<em>inp</em>
and <em>out</em> or similar) or in-line assembly code. (See the source
code in my <em>inpout32.zip</em> below for an example.) This method is
simple, but it's slow, it can't protect the port from access by other
applications, and it doesn't work at all under Windows NT/2000/Xp. If
you use Visual Basic or another language that doesn't have functions for
port I/O or allow in-line assembly code, you can use a DLL or a custom
control that adds port I/O functions to an application.</p>
<p>A system-level device driver enables faster port access and can manage
access by multiple applications. Driver types include VxD (virtual device
driver) for Windows 9x/Me, WDM for Windows 98/NT/2000/Me/Xp, and kernel-mode
driver for Windows NT/2000/Xp. Hardware interrupts must use a system-level
driver under Windows 9x/NT/2000/Me/Xp. If you don't want to write your
own driver, there are custom controls and other tools that enable applications
to access ports and respond to interrupts via a driver.</p>
<p>A third way to access ports is to use the drivers included with Windows.
Windows 3.x/9x/NT have no functions for generic port access, only functions
tied to specific uses. For example, there are API calls for accessing
printers and for accessing serial ports controlled by UARTs. In Visual
Basic, the Printer object and MSComm control are other options for parallel
and serial-port access. Built-in functions and controls like these are
usually the best solution when their abilities match what you're trying
to accomplish.</p>
<p> Windows 2000/Xp add improved drivers for accessing parallel-port devices
with support for SPP, PS/2 (Byte), EPP, and ECP modes and daisy-chaining.
Parclass is a system class driver for parallel-port devices, and Parport
is a system function driver for the parallel port. The <a href="http://www.microsoft.com/ddk/">Windows
DDK</a> has details. Search for <em>Parallel Devices and Drivers</em>
in the documentation index. </p>
<p>Below are links to tools that you can use for port access. I've grouped
them according to which operating systems they're supported in. The list
includes freeware, shareware, and commercial products. </p>
<h3>Programming Tools for Port I/O and Interrupts </h3>
<p><strong>For Windows 95/98/NT/2000/Me/Xp</strong> </p>
<ul>
<li>
<p><strong><a href="http://www.logix4u.net/">Inpout32.dll</a></strong>
is compatible with my Win9x inpout32.dll (below) but works under all
Windows editions from Win95/98/Me to WinNT/2000/XP. For Windows NT
etc., a kernel mode device driver is embedded in the DLL in binary
form. Freeware. A big thank you to LOGIX4U for coming up with this
and making it available. For testing inpout32.dll in Visual Basic
6, see my example program <a href="http://www.lvr.com/files/test_inpout32_vb6.zip">Test_inpout32_vb6.zip</a>.
For testing inpout32.dll in Visual Basic .NET, see my example program
<a href="http://www.lvr.com/files/test_inpout32_vbdotnet.zip">Test_inpout32_vbdotnet.zip</a>.
</p>
</li>
</ul>
<ul>
<li><img src="parport_fichiers/new.gif" height="12" width="31"><a href="http://www.codeproject.com/csharp/csppleds.asp">I/O
Ports Uncensored</a>. How to access ports in C# (CSharp) using inpout32.
By Levent S. and the Code Project.</li>
</ul>
<ul>
<li>Before you can access an I/O port, you need to know its address. The
<a href="http://sourceforge.net/project/showfiles.php?group_id=107163&package_id=117766">get_io</a>
DLL finds port addresses and has been tested in Windows 98/2000/XP.
It does not work under Windows NT. (See <a href="http://www.lvr.com/jansfaq.htm">Jan's
FAQ</a> for NT info.) Free. From Graham Bartlett.</li>
</ul>
<ul>
<li><a href="http://support.microsoft.com/default.aspx?scid=kb;en-us;823179&Product=vb6">HOW
TO: Access Serial Ports and Parallel Ports by Using Microsoft Visual
Basic .NET</a>. How to use WriteFile to access the data port. Knowledge
Base article #823179 from Microsoft.</li>
</ul>
<ul>
<li><a href="http://sheepdogguides.com/dt3k.htm">Delphi: DLLs and Accessing
Port Hardware</a>. An article from TK Boyd.</li>
</ul>
<ul>
<li>
<p><a href="http://www.driverlinx.com/">DriverLinx Port I/O</a>. Freeware.
Supports: port I/O. From Scientific Software Tools. John Pappas has
written <a href="http://diskdude.cjb.net/software/cbuilder/index.html">TDLPortIO</a>,
a freeware interface for DriverLinx for use with C++ Builder, Delphi,
and other languages.</p>
</li>
<li>
<p><a href="http://www.tetradyne.com/">DriverX</a>. Supports: port I/O
and interrupts. From Tetradyne Software.</p>
</li>
<li>
<p><a href="http://www.jspayne.com/io/home.html">IO ActiveX Communications
module</a>. Shareware. Line-printer-type access to LPT ports.. From
JSPayne.</p>
</li>
<li>
<p><a href="http://www.uct.on.ca/">Ioport & NTPort</a>. Shareware.
Supports: port I/O. From Robert Woudsma at Upper Canada Technologies.</p>
</li>
<li>
<p><a href="http://www.zeecube.com/driver.htm">Parallel Port Direct
I/O Access package</a>. Shareware. Supports: port I/O. Supports access
under NT by changing the I/O permission map for the process that claims
the port. From Peter Shoebridge at Zeecube Software</p>
</li>
<li>
<p><a href="http://www.paraport.net/">ParPort</a> provides a DLL with
functions that enable applications to read and write to a parallel
port using the enhanced drivers provided with Windows 2000 and Windows
Xp. Free for non-commercial use. From ParaPort.net.</p>
</li>
<li>
<p><a href="http://www.entechtaiwan.com/tools.htm">TVicHW32 & TVicPort</a>.
Shareware. Supports: port I/O and hardware interrupts. From EnTech
Taiwan</p>
</li>
<li>
<p><a href="http://www.gizmos-n-gadjets.com/ASP/Software.asp">W95pio
and Ntpio</a>. Freeware. Supports: port I/O. Intended for use with
HP's VEE visual programming language, but adaptable to other uses.
Hosted by Gizmos-N-Gadjets. Ntpio is also available from <a href="http://we.home.agilent.com/cgi-bin/bvpub/agilent/editorial/cp_MiscEditorial.jsp?ID=1000000407:epsg:sud&LANGUAGE_CODE=eng&CT=AGILENT_EDITORIAL&COUNTRY_CODE=ZZ">Agilent</a>'s
website.</p>
</li>
<li>
<p><a href="http://www.internals.com/">WinIO</a>. Freeware. Supports:
port I/O. Includes a DLL, declarations, and C source code. From Internals.com.</p>
</li>
<li>
<p>WinRT, WinRT-VB, WinDK. These products are no longer available from
BSQUARE.</p>
</li>
</ul>
<p><strong>For Windows 95/98/Me Only</strong>
</p><ul>
<li>
<p><a name="inpout32"></a> <a href="http://www.lvr.com/files/inpout32.zip">Inpout32.zip</a>.
Freeware. Supports: port I/O. The file contains inpout32.dll, which
I wrote in Delphi 2. The zip file includes the DLL, Visual-Basic declarations
for <tt>inp </tt>and <tt>out</tt>, documentation, a test program,
and the Delphi source code, which includes assembly code for port
I/O. If you don't see the DLL file after you unzip the files, you
probably have system files hidden. To unhide them, go to My Computer
> View > Folder Options > View > Hidden Files and select Show All
Files. Instructions for using inpout32 with C++ are in <a href="http://www.lvr.com/jansfaq.htm">Jan's
FAQ</a>. <strong>To add port access under Windows NT/2000/XP with
no changes to application code, see Inpout32.dll above.</strong></p>
</li>
<li>
<p><a href="http://www.wdj.com/">Lptaccess</a>. Freeware. This is a VxD
that enables an application to reserve port addresses for its exclusive
use. Details are in Karen Hazzah's <em>VxD Advisor</em> column in
the January 1998 issue of <em>Windows Developer's Journal</em>. The
magazine's website has the program code and info about the magazine.</p>
</li>
<li>
<p>The tutorial <a href="http://www.boondog.com/">Visual Basic DLLs
and PC Interfacing</a> is an excellent explanation of how to write
your own inpout DLL in Visual C++. From Paul Oh.</p>
</li>
<li>
<p><a href="http://www.softcircuits.com/sw_tools.htm">Win95io.zip</a>.
Freeware. Supports: port I/O. Another inpout DLL. The DLL is just
2048 bytes. From Jonathan Wood at Softcircuits.</p>
</li>
</ul>
<p><strong>For Windows NT/2000/Xp Only </strong>
</p><ul>
<li>
<p><a href="http://www.direct-io.com/">Direct I/O</a>. Shareware. Incluces
interrupt emulation. From Ingenieurbuero Paule.</p>
</li>
<li>
<p><a href="http://www.zealsoftstudio.com/ntport/">NTPort Library</a>.
Shareware. From Zeal SoftStudio.</p>
</li>
<li>
<p><a href="http://www.beyondlogic.org/porttalk/porttalk.htm">PortTalk</a>.
Freeware. From BeyondLogic.</p>
</li>
<li>
<p>The <a href="http://www.sybera.de/english/e_sha.htm">SHA toolkit</a>.
Freeware. Enables port I/O, hardware interrupts, and DMA from C++
and Delphi applications. From Sybera.</p>
</li>
<li>
<p><a href="http://www.thesycon.de/">Thesycon</a> has a driver for NT
and Windows 2000.</p>
</li>
<li>
<p><a href="http://www.winsite.com/info/pc/winnt/programr/tinypo20.zip/">Tinyport</a>.
Shareware. Supports: port I/O. A ready-to-run kernel-mode device driver.
Tinyport complies with the rules that Microsoft has specified for
NT drivers, so it doesn't undermine NT's stability and can be used
in critical applications. From Manfred Keul.</p>
</li>
<li>
<p><a href="http://www.embeddedtronics.com/design&ideas.html">UserPort</a>
is a kernel mode driver for Windows NT/2000 that gives usermode programs
access to I/O ports. From Tomas Franzon. Updated 5/31/01. Inspired
by the article "Direct Port I/O and Windows NT" by Dale Roberts, which
describes a way to defeat NT's security for port I/O. <a href="http://www.ddj.com/">Dr.
Dobbs' Journal</a>, May 1996. The article is available on CD. </p>
</li>
<li>
<p><a href="http://www.pcjunkie.cwc.net/">ParIO</a> is an NT Parclass
driver modified from a Microsoft DDK demo.From Martin Davey</p>
</li>
</ul>
<h4>16-bit-only Tools</h4>
<p>Use these with products such as Visual Basic 3 or 16-bit Visual Basic
4 under Windows 3.x.
</p><ul>
<li>
<p><a href="http://www.lvr.com/files/inpout16.zip">inpout16.zip</a> Freeware. Supports:
port I/O. Includes an inpout DLL, source code in PowerBasic, and an
example VB project. From Lakeview Research. </p>
</li>
<li>
<p><a href="http://www.lvr.com/files/inpout.zip">inpout.zip</a>. Freeware. Supports: port
I/O. Another inpout DLL. Includes assembly-language source code. From
Jay Munro.</p>
</li>
<li>
<p><a href="http://www.customautomationtech.com/honesoftware/port.htm">Port16</a>
ActiveX control. Shareware. From Hone Software.</p>
</li>
<li>
<p><a href="http://www.softcircuits.com/sw_tools.htm">vbasm.zip</a>.
Freeware. Supports: port I/O. A DLL that adds Inp, Out, Peek, Poke,
Call Interrupt, and more for accessing ports and memory. From Jonathan
Wood at Softcircuits.</p>
</li>
</ul>
<h4>For 16- and 32-bit Programs (Windows 3.x, Windows 95/98)</h4>
<ul>
<li>
<p><a href="http://www.powerbasic.com/">PowerBasic</a> is the source
for several products that are useful for applications that access
ports. PowerBasic's 16-bit and 32-bit DLL compilers enable you to
write and compile DLLs in Basic. The Basic syntax is nearly identical
to classic QuickBasic. Because the DLLs are compiled, not interpreted
like Visual Basic code, they're fast. The 16-bit edition includes
<em>inp</em> and <em>out</em> for port access. The 32-bit edition
allows port access under Windows 95/98 via inline assembly code. There's
also a 32-bit Basic console compiler for text-only Windows applications
and even a DOS compiler. </p>
</li>
<li>
<p>"<a href="http://www.coolstf.com/vb.html"><strong><em>Using
16-bit DLLs with 32-bit VB</em></strong></a>." This article explains,
step-by-step, a method for using 16-bit DLLs in 32-bit VB applications.
The example described is port I/O with Vbasm (see above). To use this
method, you must have both a 16-bit and a 32-bit edition of Visual
Basic. From COOL.STF.</p>
</li>
<li>
<p><a href="http://www.zealsoftstudio.com/vbio/">Vbio.dll</a>. Freeware.
From Zeal SoftStudio. </p>
</li>
</ul>
<p>Other Driver Information and Sources</p>
<ul>
<li>
<p>Windows 2000 and Windows Me include a <a href="http://www.lvr.com/usbwin.htm">USB printer
driver</a>, and the driver can be distributed for use with Windows
98.</p>
</li>
<li>
<p>Dan Norton has an FAQ and many links relating to <a href="http://www.chsw.com/ddk">Device
Driver Development</a> </p>
</li>
<li>
<p>The <a href="http://www.asktheoracle.com/driver/">Device Driver Resource
Page</a> has many links. From Bob Weiman and Oracle Engineering. </p>
</li>
<li>
<p><a href="#Warp%20Nine%20Engineering">Warp Nine Engineering</a> has IEEE-1284
drivers.<a name="Other Links"></a></p>
</li>
<li>
<p><a href="http://www.geocities.com/Juanga69/parport/">Parallel Printer
Port Access through Java</a>. From Juan Gabriel Del Cid Portillo.</p>
</li>
</ul>
<h3>Linux</h3>
<ul>
<li>
<p>The <a href="http://people.redhat.com/twaugh/parport/html/ppdev.html">ppdev</a>
driver enables accessing port bits, interrupts, negotiating, and setting
modes. </p>
</li>
</ul>
<h2><a name="Books"></a>Books about Parallel Port Hardware and Programming</h2>
<p>Here are links to a variety of books about parallel port hardware and
programming. The titles are listed alphabetically, except for my book,
which is first. :)</p>
<p><a href="http://www.lvr.com/parport.htm"><strong>Parallel Port Complete: Programming, Interfacing,
and Using the PC's Parallel Printer Port</strong></a><em><a href="http://www.amazon.com/exec/obidos/ASIN/0965081915/janaxelsonslakev"><img src="parport_fichiers/amazonwh.gif" align="right" border="0" height="29" hspace="5" vspace="5" width="90"></a></em><br>
Jan Axelson<br>
1996, Lakeview Research<br>
343 pages, $39.95 <br>
Covers all of the port's modes and how to use them in custom applications.</p>
<p><strong>Build Your Own Low-Cost Data Acquisition and Display Devices</strong><em><a href="http://www.amazon.com/exec/obidos/ASIN/0830643486/janaxelsonslakev"><img src="parport_fichiers/amazonwh.gif" align="right" border="0" height="29" hspace="5" vspace="5" width="90"></a></em><br>
by Jeffrey Hirst Johnson<br>
1993, McGraw Hill/TAB Electronics<br>
305 pages, $24.95<br>
Lots of detail about the port hardware (serial ports too) and ISA interfacing,
with DOS Pascal program code.</p>
<p><strong>Controlling the World With Your PC</strong><em><a href="http://www.amazon.com/exec/obidos/ASIN/1878707159/janaxelsonslakev"><img src="parport_fichiers/amazonwh.gif" align="right" border="0" height="29" hspace="5" vspace="5" width="90"></a></em><br>
by Paul Bergsman<br>
1994, LLH Technology Pub<br>
257 pages, $35<br>
Many projects with DOS code in BASIC, C and Pascal<em></em></p>
<p><strong>Programming the Parallel Port: Interfacing the PC for Data Acquisition
& Process Control<a href="http://www.amazon.com/exec/obidos/ASIN/0879305134/janaxelsonslakev"></a></strong><em><a href="http://www.amazon.com/exec/obidos/ASIN/0879305134/janaxelsonslakev"><img src="parport_fichiers/amazonwh.gif" align="right" border="0" height="29" hspace="5" vspace="5" width="90"></a></em><br>
by Dhananjay V. Gadre<br>
1998, CMP Books<br>
308 pages, $44.95<br>
Includes source code in C for DOS and Linux.</p>
<p><br>
</p>
<p><br>
</p>
<p><br>
</p>
<p> </p>
<p> </p>
<p> </p>
<p> </p>
</td>
</tr>
</tbody></table>
<p> </p>
<p> </p>
</body></html>