german:     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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Hardware Description

PCMCIA DMX INTERFACE CARD 2512A

[PCMCIA DMX  Interface 2512A]    [PCI to PCMCIA Adapter 2512A-PCI]

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

The 2512A is a Dual Link interface, that is, a total of 1024 DMX slots is supported. Either port can be configured as Input or as Output, thus enabling you to read, modify and write data simultaneously. Using DMA, this interface is pretty fast. The PCMCIA card comes complete with adaptor cable and DMX In/Out connector breakout box.

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INSTALLATION

In order to use the interface with your PC, it has to be installed. Only then the computer can identify the interface automatically when plugged into the PCMCIA slot. Please read the installation procedure. Alternatively, you may load the installation instructions as PDF file (approx. 36kB).

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

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FUNCTION CHECK

To test proper functioning of the interface, the WIZARD program can be used. The WIZARD program checks the presence of the PCMCIA interface and reports the memory block base address.



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

To integrate the PCMCIA Card interface, the application must link the DMXCARD.VXD Plug and Play virtual device driver. The necessary files to imstall the driver can be loaded above. Example of how to do this will be available in the software section of this website shortly.

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 to access the PCMCIA interface are provided by the DMXCRD32.DLL Dynamic Link Library. This DLL is compatible with Windows95, Windows98, Windows Millennium and Windows2000.

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

Some programming examples can be found within the software section of this website. Also check the skeleton page, which contains these projects:

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


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