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DMX Interface Hardware: this is a complete step-by-step description how to access the hardware, and how to set the working parameters required for DMX512/1990. Find memory maps, hardware addresses and other hardware-related stuff.

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WG18: Hardware Description PCMCIA DMX INTERFACE CARD 2512A     The DMX512 PCMCIA Interface Card is ideally suited for all laptop computers, and in conjunction with the PCI-to-PCMCIA Adaptor 2512A-PCI for desktop computer systems also. The 2512A-PCI is optionally available, and completes the solution for PCI-based systems.

We offer a range of PC interface cards, not only readily available but affordable and easy to program.
Besides we offer ready-to use software packages for free.

Programming of our DMX512 interfaces cards is really simple. Here are the few steps to get things running.

FEATURES 2512A

2x 512 DMX channels. Each link configurable as DMX512 input or as DMX512 output High Speed interface for EVERY computer supporting a standard PCMCIA slot supports Windows 95, 98, Millennium

FEATURES 2512A-PCI

1 PCMCIA slot, Type I, II or III High Speed interface also supports RAM-Cards, Flash-Cards, Harddrives supports Windows 95, 98, ME, 2000, NT

THIS SITE IS CURRENTLY UNDER CONSTRUCTION keep watching - it may change frequently. last updated: 10.03.2002

PRELIMINARY INFORMATION

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INSTALLATION

The installation requires the following files, which should be copied to a temporary directory or to a floppy disk:

FOR WINDOWS 95, 98, ME

• DMXCARD.INF: the installation information file for Windows
• DMXCARD.VXD: the hardware driver for the PCMCIA interface.

FOR WINDOWS 2000 / XP

• DMXCARD.INF: the installation information file for Windows
• DMXCARD.SYS: the hardware driver for the PCMCIA interface.
  Note for Windows XP: As the drivers are not yet digitally signed by Microsoft, Windows XP will claim missing certification.
  Do install the drivers nevertheless.

To access the driver from either Windows, you need a Dynamic Link Library.

• DMXCRD32.DLL: the Windows DLL for the PCMCIA interface.

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FUNCTION CHECK

for Windows 9.x: download WIZARD program file (approx. 38 kB)
for Windows 2000: download WIZARD program file (approx. 47 kB)

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WINDOWS DRIVER INTEGRATION

The main purpose of the PCMCIA Card driver is to allocate the card memory in the system and return the virtual memory address where Windows has mapped the card to the application (with an IOCTL function). In this case after the driver call the application can use a simple memory mapped interaction with the card, with the only precaution that the PCMCIA DMX Card only supports 8-bit accesses. The driver provided supports up to 2 PCMCIA DMX Cards in 2 PCMCIA sockets.

The driver provides an IOCTL function that returns the physical position of the card (Socket 1 or 2). Note that there is no established standard on Laptops regarding the mutual position of the sockets; socket 1 being either the upper or the lower socket.

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PROGRAMMING

All functions are explained in much detail in the DMXCRD.PDF document. we suggest you download this manual and print it for your convenience.

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PROGRAMMING EXAMPLES

• VISUAL BASIC 6 - The DESK6 demo shows driver integration and DLL usage for Windows 9.x platforms

Have Fun experimenting with the 2512A PCMCIA DMX512 Interface! We always welcome your Comments. Application Examples and Demos. Just mail to

• webmaster@pcdmx.de