4.5 Demonstration Programs
The demos included with the EZ-KIT Lite are designed to show the user the features and capabilities of the
Vi+ Debugger and the ADSP-21065L DSP. The demos are listed by the executable file name and are
described by their output. All of the demos are located in the directory
C:\Program Files\Analog
Devices\VisualDSP\21k\ADSP21065L EZ-KIT\Demos
.
•
Do not run more than one ADSP-21065L EZ-KIT Lite Session in the debugger at any one time. User may
run an EZ-KIT Lite session and a simulator or ICE session at the same time or you can open two debugger
interfaces to run more than one EZ-KIT Lite session.
4.5.1 FFT.dxe
The DFT demo performs a frequency analysis on an analog signal presented to the board. Use the
Demo menu command in the debugger to change how the DFT is performed.
•
This demo maps seg_dmda into SDRAM. Therefore, any added interrupts other then the
codec’s interrupt handler, fail. For more information, see “ADSP-21065L Memory Map”.
4.5.2 BP.dxe
The BP demo modifies a signal by subjecting it to a bandpass filter. As in the previous demo, the
source of the signal may be changed through the codec controls available through the Settings,
Codec command. A demo specific control window is also available to change some parameters of
the bandpass filter.
Several AD1819 options can also be modified while the BP demo program is running. Use the
Settings -> Codec
command, to change the sample rate, input gain, and source (microphone input
or line input).
4.5.3 Pluck.dxe
The pluck demo plays a tune to the Line Out connector. To hear the output, connect powered
speakers to J7.
4.5.4 Gunn.dxe
The Peter Gunn demo also plays a tune to the Line Out connector. To hear the output, connect
powered speakers to J7.
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