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 <a href="http://www.lvr.com/">Lakeview Research home</a> &gt; Parallel Port 
 Central 
 <h1 align="center">Parallel Port Central</h1>
 A collection of files and links to material about 
 the PC's parallel port, 
 including ECP, EPP, bidirectional, and IEEE-1284 modes (and other I/O 
 ports as well).
 brought to you by Jan Axelson
 <a href="#Basics">Basics</a> | <a href="#Enhanced%20and%20Extended%20Ports">ECP 
 &amp; EPP</a> | <a href="#Hardware">Hardware</a> | <a href="#Troubleshooting">Troubleshooting</a> 
 | <a href="#ConnectingTwoPCs">Connecting 2 PCs</a>
 <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>
 <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>
 For all you ever wanted to know about the parallel port, order a copy 
 of <a href="http://www.lvr.com/parprtib.htm">Parallel Port Complete</a>. 
 Read <a href="http://www.lvr.com/parprtib.htm#Chapter1">Chapter 1</a> on-line. 
 <h2><a name="Basics"></a>The Basics</h2>
 <ul>
 <li> 
 <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.
 </li>
 <li> 
 <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)
 </li>
 <li> 
 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.
 </li>
 <li> 
 <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.
 </li>
 <li> 
 <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.
 </li>
 <li> 
 <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.
 </li>
 <li> 
 <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.
 </li>
 <li> 
 <a href="http://www.epanorama.net/links/pc/index.html">Tomi Engdahl's 
 PC Hardware pages</a>. Many links.
 </li>
 <li> 
 <a href="http://www.pcwebopedia.com/Hardware/Ports_and_Interfaces/">PC 
 Webopedia</a>. Definitions and many links.
 </li>
 <li> 
 <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.
 </li>
 <li> 
 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>.
 </li>
 <li> 
 A tutorial on <a href="http://www.cnckits.com/">motion control from 
 the parallel port</a>. From cncKITS.
 </li>
 </ul>
 <ul>
 <li> 
 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 G�mez Negrete. <a href="http://www.pchardware.org/puertos/paralelo.php">El 
 puerto paralelo</a> from Javier Olcina and David Romero. 
 </li>
 </ul>
 <h2><a name="Enhanced and Extended Ports"></a>Enhanced and Extended Ports</h2>
 Including the bidirectional (PS/2) port, extended capabilities port (ECP), 
 and enhanced parallel port (EPP), and the IEEE-1284 standard that descibes 
 them all.
 <h3>General Information</h3>
 <ul>
 <li> 
 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)&nbsp;file)
 </li>
 <li> 
 <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&nbsp;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&nbsp;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).
 </li>
 <li> 
 Various files relating to the IEEE-1284 standard, from <a href="ftp://ftp.lexmark.com/ieee/">Lexmark's 
 FTP site</a>
 </li>
 <li> 
 Information on ordering standards from <a href="http://stdsbbs.ieee.org/">IEEE</a>. 
 The title of the parallel port standard is 1284-1994 IEEE Standard 
 Signaling Method for a Bidirectional Parallel Peripheral Interface 
 for Personal Computers.
 </li>
 <li> 
 <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.
 </li>
 <li> 
 <a href="http://www.transdigital.net/">Trans Digital</a> has a high-speed 
 universal parallel-port product.
 </li>
 </ul>
 <h2><a name="Hardware"></a>Hardware</h2>
 <h3>Boards</h3>
 <ul>
 <li> 
 <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.
 </li>
 <li> 
 <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.
 </li>
 <li> 
 <a href="http://www.byterunner.com/">Byte Runner Technologies</a> 
 has parallel-port expansion cards, both ISA and PCI-based.
 </li>
 </ul>
 <h3>Chips</h3>
 The data sheets for parallel-port controller chips include timing diagrams, 
 register assignments, and other useful details about accessing and using 
 the new modes. PC-side chips are for use in PCs; peripheral-side 
 chips are for use in peripherals. 
 <ul>
 <li> 
 <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).
 </li>
 <li> 
 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)
 </li>
 <li> 
 <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.
 </li>
 <li> 
 <a href="http://www.smsc.com/">Standard Microsystems Corp.,</a> (SMSC), 
 another manufacturer of EPP/ECP parallel-port chips. (PC- and peripheral-side).
 </li>
 <li> 
 <a href="http://www.exar.com/products.php?areaID=3">Exar/Startech</a>'s 
 ST78C34 and ST78C36 are EPP/ECP&nbsp;chips. Look under Products/Communications/General 
 Purpose. (PC-side). 
 </li>
 <li> 
 <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.
 </li>
 <li> 
 <a href="http://www.fapo.com/1284pic.htm">Warp Nine's W91284PIC</a> 
 supports all modes, plus daisy-chaining and negotiating. (peripheral-side)
 </li>
 <li> 
 <a href="http://www.winbond.com/e-winbondhtm/partner/b_2_d_2.htm">Winbond</a> 
 has PC-side chips.
 </li>
 </ul>
 <h3>Cables</h3>
 <ul>
 <li> 
 <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.
 </li>
 <li> 
 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).
 </li>
 <li> 
 <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.
 </li>
 <li> 
 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.
 </li>
 <li> 
 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.)
 </li>
 </ul>
 <h2><a name="Troubleshooting"></a>Troubleshooting</h2>
 <ul>
 <li> 
 <a href="http://www.lvr.com/files/para14.zip">Para14.zip</a>. Parallel-port diagnostic 
 and information utility from Parallel Technologies. (88K)
 </li>
 <li> 
 <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.
 </li>
 <li> 
 <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.
 </li>
 <li> 
 <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.
 </li>
 </ul>
 <h2><a name="ConnectingTwoPCs"></a>Connecting Two PCs</h2>
 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.
 <ul>
 <li> 
 <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.
 </li>
 <li> 
 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.
 </li>
 <li> 
 Sewell Development's <a href="http://www.sewelld.com/">Fast Lynx</a> 
 works with everything from DOS through Windows XP.
 </li>
 <li> 
 <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.
 </li>
 <li> 
 Also see the information under <a href="#Cables">Cables</a>.
 </li>
 </ul>
 <h2><a name="UsingPrinters"></a>About Using Printers</h2>
 <ul>
 <li> 
 <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: 
 
 <blockquote> 
 <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. 
 <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. 
 <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.
 </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>
 Projects that use the parallel port or an I/O chip like the 8255 Parallel 
 Peripheral Interface chip. 
 <ul>
 <li> 
 <a href="http://www.boondog.com/%5Ctutorials%5C8255%5C8255.htm">Connecting 
 an 8255 Parallel Peripheral Interface to the ISA bus</a>. From Boondog 
 Automation. 
 </li>
 <li> 
 <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.
 </li>
 <li> 
 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.
 </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>
 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.
 Under Windows 3.x/95/98/Me, applications can read and write directly 
 to port addresses. Use your compiler's built-in functions (inp 
 and out or similar) or in-line assembly code. (See the source 
 code in my inpout32.zip 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.
 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.
 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.
 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 Parallel Devices and Drivers 
 in the documentation index. 
 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. 
 <h3>Programming Tools for Port I/O and Interrupts </h3>
 For Windows 95/98/NT/2000/Me/Xp 
 <ul>
 <li> 
 <a href="http://www.logix4u.net/">Inpout32.dll</a> 
 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>. 
 
 </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&amp;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&amp;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> 
 <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.
 </li>
 <li> 
 <a href="http://www.tetradyne.com/">DriverX</a>. Supports: port I/O 
 and interrupts. From Tetradyne Software.
 </li>
 
 <li> 
 <a href="http://www.jspayne.com/io/home.html">IO ActiveX Communications 
 module</a>. Shareware. Line-printer-type access to LPT ports.. From 
 JSPayne.
 </li>
 <li> 
 <a href="http://www.uct.on.ca/">Ioport &amp; NTPort</a>. Shareware.&nbsp; 
 Supports: port I/O. From Robert Woudsma at Upper Canada Technologies.
 </li>
 <li> 
 <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
 </li>
 <li> 
 <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.
 </li>
 <li> 
 <a href="http://www.entechtaiwan.com/tools.htm">TVicHW32 &amp; TVicPort</a>. 
 Shareware. Supports: port I/O and hardware interrupts. From EnTech 
 Taiwan
 </li>
 <li> 
 <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&amp;LANGUAGE_CODE=eng&amp;CT=AGILENT_EDITORIAL&amp;COUNTRY_CODE=ZZ">Agilent</a>'s 
 website.
 </li>
 <li> 
 <a href="http://www.internals.com/">WinIO</a>. Freeware. Supports: 
 port I/O. Includes a DLL, declarations, and C source code. From Internals.com.
 </li>
 <li> 
 WinRT, WinRT-VB, WinDK. These products are no longer available from 
 BSQUARE.
 </li>
 </ul>
 For Windows 95/98/Me Only 
 <ul>
 <li> 
 <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 
 &gt; View &gt; Folder Options &gt; View &gt; 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>. To add port access under Windows NT/2000/XP with 
 no changes to application code, see Inpout32.dll above.
 </li>
 <li> 
 <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 VxD Advisor column in 
 the January 1998 issue of Windows Developer's Journal. The 
 magazine's website has the program code and info about the magazine.
 </li>
 <li> 
 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.
 </li>
 <li> 
 <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.
 </li>
 </ul>
 For Windows NT/2000/Xp Only 
 <ul>
 <li> 
 <a href="http://www.direct-io.com/">Direct I/O</a>. Shareware. Incluces 
 interrupt emulation. From Ingenieurbuero Paule.
 </li>
 <li> 
 <a href="http://www.zealsoftstudio.com/ntport/">NTPort Library</a>. 
 Shareware. From Zeal SoftStudio.
 </li>
 <li> 
 <a href="http://www.beyondlogic.org/porttalk/porttalk.htm">PortTalk</a>. 
 Freeware. From BeyondLogic.
 </li>
 <li> 
 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.
 </li>
 <li> 
 <a href="http://www.thesycon.de/">Thesycon</a> has a driver for NT 
 and Windows 2000.
 </li>
 <li> 
 <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.
 </li>
 <li> 
 <a href="http://www.embeddedtronics.com/design&amp;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. 
 </li>
 <li> 
 <a href="http://www.pcjunkie.cwc.net/">ParIO</a> is an NT Parclass 
 driver modified from a Microsoft DDK demo.From Martin Davey
 </li>
 </ul>
 <h4>16-bit-only Tools</h4>
 Use these with products such as Visual Basic 3 or 16-bit Visual Basic 
 4 under Windows 3.x. 
 <ul>
 <li> 
 <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. 
 </li>
 <li> 
 <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.
 </li>
 <li> 
 <a href="http://www.customautomationtech.com/honesoftware/port.htm">Port16</a> 
 ActiveX control. Shareware. From Hone Software.
 </li>
 <li> 
 <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.
 </li>
 </ul>
 <h4>For 16- and 32-bit Programs (Windows 3.x, Windows 95/98)</h4>
 <ul>
 <li> 
 <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 
 inp and out 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. 
 </li>
 <li> 
 "<a href="http://www.coolstf.com/vb.html">Using 
 16-bit DLLs with 32-bit VB</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.
 </li>
 <li> 
 <a href="http://www.zealsoftstudio.com/vbio/">Vbio.dll</a>. Freeware. 
 From Zeal SoftStudio. 
 </li>
 </ul>
 Other Driver Information and Sources
 <ul>
 <li> 
 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.
 </li>
 <li> 
 Dan Norton has an FAQ and many links relating to <a href="http://www.chsw.com/ddk">Device 
 Driver Development</a> 
 </li>
 <li> 
 The <a href="http://www.asktheoracle.com/driver/">Device Driver Resource 
 Page</a> has many links. From Bob Weiman and Oracle Engineering. 
 </li>
 <li> 
 <a href="#Warp%20Nine%20Engineering">Warp Nine Engineering</a> has IEEE-1284 
 drivers.<a name="Other Links"></a>
 </li>
 <li> 
 <a href="http://www.geocities.com/Juanga69/parport/">Parallel Printer 
 Port Access through Java</a>. From Juan Gabriel Del Cid Portillo.
 </li>
 </ul>
 <h3>Linux</h3>
 <ul>
 <li> 
 The <a href="http://people.redhat.com/twaugh/parport/html/ppdev.html">ppdev</a> 
 driver enables accessing port bits, interrupts, negotiating, and setting 
 modes. 
 </li>
 </ul>
 <h2><a name="Books"></a>Books about Parallel Port Hardware and Programming</h2>
 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. :)
 <a href="http://www.lvr.com/parport.htm">Parallel Port Complete: Programming, Interfacing, 
 and Using the PC's Parallel Printer Port</a><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> 
 Jan Axelson 
 1996, Lakeview Research 
 343 pages, $39.95 
 Covers all of the port's modes and how to use them in custom applications.
 Build Your Own Low-Cost Data Acquisition and Display Devices<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> 
 by Jeffrey Hirst Johnson 
 1993, McGraw Hill/TAB Electronics 
 305 pages, $24.95 
 Lots of detail about the port hardware (serial ports too) and ISA interfacing, 
 with DOS Pascal program code.
 Controlling the World With Your PC<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> 
 by Paul Bergsman 
 1994, LLH Technology Pub 
 257 pages, $35 
 Many projects with DOS code in BASIC, C and Pascal
 Programming the Parallel Port: Interfacing the PC for Data Acquisition 
 &amp; Process Control<a href="http://www.amazon.com/exec/obidos/ASIN/0879305134/janaxelsonslakev"></a><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> 
 by Dhananjay V. Gadre 
 1998, CMP Books 
 308 pages, $44.95 
 Includes source code in C for DOS and Linux.
 
 
 
 
 
 
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