CDB5471 Datasheet, PDF (14/26 Pages) Cirrus Logic – Evaluation Board and Software

CDB5471
3. SOFTWARE
The evaluation software was developed with Lab
Windows/CVI^™, a software development package
from National Instruments. The software is de-
signed to run under Windows 95^™ or later, and re-
quires about 3 MB of hard drive space (2 MB for
the CVI Run-Time Engine^™, and 1 MB for the eval-
uation software). After installing the software, read
the readme.txt file for any last minute updates or
changes. More sophisticated analysis software can
be developed by purchasing the development pack-
age from National Instruments (512-794-0100).
3.1 Installing the Software
Installation Procedure:
1) Turn on the PC, running Windows 95^™ or later.
2) Insert the Installation Diskette #1 into the PC.
3) Select the Run option from the Start menu.
4) At the prompt, type: A:\SETUP.EXE <enter>.
5) The program will begin installation.
6) If it has not already been installed on the PC,
the user will be prompted to enter the directory
in which to install the LabWindows CVI Run-
Time Engine^™. The Run-Time Engine^™ manag-
es executables created with Lab Win-
dows/CVI^™. If the default directory is
acceptable, select OK and the Run-Time En-
gine^™ will be installed there.
7) After the Run-Time Engine^™ is installed, the
user is prompted to enter the directory in which
to install the CDB5471 software. Select OK to
accept the default directory.
8) Once the program is installed, it can be run by
double clicking on the EVAL5451 icon, or
through the Start menu.
Note:
The software is written to run with 640 x 480
resolution; however, it will work with 1024 x 768
resolution. If the user interface seems to be a little
small, the user might consider setting the
display settings to 640 x 480. (640x480 was
chosen to accommodate a variety of
computers).
3.2 Running the Software
3.2.1 Getting Started
The CDB5471 Evaluation software allows the user
to obtain, display, and save data that is acquired by
the CS5471 chip. Before running the software, the
first step is to make sure that all of the headers that
are listed in Table 2 are set to an appropriate set-
ting, the exact setting should be determined by the
user. Next, with the user’s DC power supplies still
turned off, the user should connect the necessary
power leads to the banana jack power connectors
on the evaluation board. Refer to Table 1 for vari-
ous acceptable power supply connection configura-
tions. Then at this time the user should turn on their
DC power supplies, which should apply power to
the CDB5471. Several test point locations are
available on the evaluation board. The user can
check these test points with a voltmeter, to make
sure that the voltages at these test points are at the
expected levels. When the user has verified that the
power supply levels are constant, the user should
connect the included 25-pin cable between J17 of
the evaluation board and the parallel port on the us-
er’s PC. The user should then press down on the S1
“RESET” switch, and make sure to hold it down for
at least ~0.5 seconds before releasing. Finally, the
user can start the PC software. To start the soft-
ware, double click on the EVAL5451 icon, or ini-
tiate through the Start menu.
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