Digital Signal Processing Reference
In-Depth Information
E.4 VISUAL APPLICATION BUILDER AND LABVIEW
The Visual Application Builder (VAB), available from National Instruments or
Hyperception [8,9], is a component-based virtual design tool that can be used to
implement DSP algorithms. VAB uses a methodology of developing DSP algorithms
and systems graphically simply by connecting functional components together with
a mouse. The user only needs to choose the desired functions, place them onto a
worksheet, select their parameters interactively, and describe the data flow using
line connections. The method of design is quite similar to drawing a block diagram
of the system being designed. DSP-based design implementations can be created
and executed on DSP hardware without having to write any source code at all.
VAB contains a wide range of functional block components for FFT, filtering,
and so on, and supports the C6713 DSK. One can design and test a DSP system that
includes functional blocks such as signal generators, A/D and D/A, filters, FFT,
image processing components, and so on. Results can be displayed on the PC
monitor as the algorithm is executing or to an external device such as an oscillo-
scope.
See also LabVIEW introduced in Section 9.5 [9].
E.5 ALTERNATIVE INPUT/OUTPUT
A Daughter card, based on the AD77 stereo codec that interfaces to the C6x DSK,
is available from Integrated-DSP [10]. It plugs on the DSK and can provide an alter-
native input and output.
REFERENCES
1.
Goldwave. Available at www.goldwave.com.
2.
Cool Edit. Available at www.syntrillium.com.
3.
Gram412.zip from Spectrogram, address from shareware utility with the database
address www.simtel.net.
4.
DigiFilter, from MultiDSP. Available at multidsp@aol.com.
5.
R. Chassaing. Digital Signal Processing Laboratory Experiments Using C and the
TMS32OC31 DSK , Wiley, New York, 1999.
6.
R. Chassaing, Digital Signal Processing with C and the TMS320C30 , Wiley, New York,
1992.
7.
R. Chassaing and D. W. Horning, Digital Signal Processing with the TMS320C25 , Wiley,
New York, 1990.
8.
Hyperception. Available at info@hyperception.com.
9.
National Instruments, www.ni.com.
10.
Integrated DSP. Available at www.integrated-dsp.com.
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