Analog Devices AD7273, Руководство пользователя

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EVAL-AD7273/AD7274
Rev. 0 | Page 7 of 16
EVALUATION BOARD SOFTWARE
INSTALLING THE SOFTWARE
The EVAL-AD7273/AD7274CB evaluation board package
includes a CD-ROM that contains software for controlling and
evaluating the performance of the AD7273/AD7274 when it is
operated with the EVAL-CONTROL-BRD2.
When the CD is inserted into a PC, an installation program
automatically begins. This program installs the evaluation
software, the data sheet for the AD7273/AD7274 evaluation
board, as well as the data sheet for the AD7273/AD7274. All
literature on the CD is in Adobe’s portable documentation
format (PDF) and requires Acrobat® Reader™ to be viewed or
printed. The user interface on the PC is a dedicated program
written especially for the AD7273/AD7274.
SETTING UP THE EVAL-CONTROL-BRD2
This section describes how the evaluation board, the EVAL-
CONTROL-BRD2, and the software should be set up to begin
using the complete system.
1. Connect the EVAL-CONTROL-BRD2 and evaluation
board together via the 96-way connector.
2. Apply the power to the EVAL-CONTROL-BRD2 via a 12 V
ac transformer. At this stage, the red LED on the EVAL-
CONTROL-BRD2 should be flashing, which indicates that
the EVAL-CONTROL-BRD2 is functional and ready to
receive instructions.
Note that the software should be installed before the printer
port cable is connected between the EVAL-CONTROL-BRD2
and the PC. This ensures that the printer port initializes
properly. The printer port can then be connected between the
PC and the EVAL-CONTROL-BRD2.
CONFIGURING THE EVALUATION BOARD
The Load Configuration dialog box allows you to load the
required configuration file for the evaluation board. A
screenshot is shown in Figure 3. The configuration gives the
software detailed information about the AD7273/AD7274
evaluation board and the part connected to the EVAL-
CONTROL-BRD2, such as the number of bits, the maximum
sampling rate, output coding, maximum sampling rate, and
power supply requirements.
The list box at the top left corner of the
Load Configuration
window lists the available configuration files. Software
configuration files give the evaluation control board software
information on how the software and hardware should perform.
The configuration files are text based files that contain information
about the particular evaluation board to be tested. The informa-
tion covers the part name, number of samples to be taken,
default and maximum sampling frequency, and power supply
settings. The configuration file also contains the name of the
DSP that is to be downloaded to the EVAL-CONTROL-BRD2.
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Figure 3. Load Configuration Window