Cirrus Logic CDB5451A - Manual (Page 13)

CDB5451A
DS458DB3 13
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). Before 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
package 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 CD into the PC.
3) Run the appropriate installer package (either
instmsi.exe or instmsiw.exe, depending on the
operating system). See the readme.txt file for
more information.
4) Run EVL5451A.msi to begin installation.
5) During installation the user will be prompted to
enter the directory in which to install the Lab-
Windows CVI Run-Time Engine
™
. The Run-
Time Engine
™
manages executables created
with Lab Windows/CVI
™
. If the default directory
is acceptable, select OK and the Run-Time En-
gine
™
will be installed there.
6) After the Run-Time Engine
™
is installed, the
user is prompted to enter the directory in which
to install the CDB5451A software. Select OK to
accept the default directory.
7) Once the program is installed, it can be run by
double clicking on the EVL5451A 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 CDB5451A Evaluation software allows the
user to obtain, display, and save data that is ac-
quired by the CS5451A 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 ap-
propriate setting, the exact setting should be deter-
mined 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 various acceptable power supply
connection configurations. Then at this time the
user should turn on their DC power supplies, which
should apply power to the CDB5451A. 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 user’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 software, double click on the
EVAL5451A icon, or initiate through the Start
menu.