National Instruments Car Stereo System 320571-01 Manual Do Utilizador

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Chapter 3, DSP Board Function Overview, contains an overview of the prototypes of the C-callable
NI-DSP Analysis functions on the DSP board that you can use in your custom programs.

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Chapter 4, Using the DMA VIs, describes two special VIs that transfer data between the host computer and
the DSP board without interfering with the DSP board.

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Appendix A, Error Codes, contains a list of the error codes returned by the NI-DSP Analysis VIs and the
corresponding error messages.

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Appendix B, Customer Communication, contains forms you can use to request help from National Instruments
or to comment on our products and manuals.

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The Glossary contains an alphabetical list and description of terms used in this manual, including abbreviations,
acronyms, metric prefixes, mnemonics, and symbols.

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The Index alphabetically lists topics covered in this manual, including the page where the topic can be found.

The following conventions are used in this manual:

<>

Angle brackets enclose the name of a key on the keyboard–for example, <enter>.

Bold text denotes menus, command names, parameters, function panel items, error
messages, and warnings.

DSP board

DSP board refers to the AT-DSP2200.

DSP Handle

DSP Handle refers to a 32-bit long integer code that constitutes an indirect reference to a
buffer of memory in the memory space of an AT-DSP2200 board.  The code contains
information about the slot number of the board on which that buffer is allocated.

DSP Handle Cluster

DSP Handle Cluster refers to a cluster that constitutes two fields–a DSP Handle and a
32-bit size that indicates the number of elements the DSP Handle holds.

DSP Library

DSP Library refers to a common object file format (COFF) that constitutes NI-DSP
software that resides and runs on the AT-DSP2200 board.  The DSP Library consists of
the Kernel, memory management routines, execution control routines, data
communication routines, interrupt handling routines, data acquisition routines and a set of
analysis functions.

<enter>

Key names are in lowercase letters.

Interface Library

Interface Library refers to the part of the NI-DSP software that resides on the PC and is
linked with your application in order to communicate data to and from the DSP board.
The Interface Library communicates with the DSP board using the driver.

Italic text denotes emphasis, a cross reference, or an introduction to a key concept.

italic monospace

Italic text in this font denotes that you must supply the appropriate words or values in the
place of these items.