EVAL-AD7484_15 Datasheet, PDF (10/20 Pages) Analog Devices – Evaluation Board for 3 MSPS, 14-Bit SAR ADC

EVAL-AD7484
SETUP MENU WINDOW
The Setup Menu window, shown in Figure 5, is used to load the
required configuration file for the evaluation board. When the
configuration file is loaded, the software acquires detailed
information about the evaluation board and part connected to
the EVAL-CONTROL BRD2, such as the number of bits,
maximum sampling rate, output coding, maximum analog
input, and power supply requirements. The configuration file
also tells the software the name of the DSP program file that it
should download to the EVAL-CONTROL BRD2. These files
are supplied by Analog Devices with the evaluation board.
CHANGING AND LOADING THE CONFIGURATION
FILE
When the hardware is set up, the software can be used to
control the EVAL-CONTROL BRD2 and the evaluation board.
To display and load current setup information, do the following:
1. Select the File menu in the main window and click Setup
Menu.
2. View all available configuration files in the Select a
Configuration File box at the top left of the Setup Menu
window. These are text based files that contain information
about the evaluation boards.
3. Select the relevant configuration file and click Load. In the
case of the AD7484 evaluation board, only one configura-
tion file is available.
The EVAL-CONTROL BRD2 is then reset, and the DSP
program is downloaded. When the download is complete, the
power supply settings in the configuration file are set and some
of the relays may be heard clicking. Dropdown menu items such
as Select No. of Samples and Select Sample Frequency are set
to the default values specified in the configuration file. These
values can be changed. When all the settings are selected, click
Close to return to the main window.
Software Configuration Files
Software configuration files give the EVAL-CONTROL BRD2
information about how the software and hardware should
perform. They contain information such as the name of the
DSP program to be downloaded, the default and maximum
sampling frequencies, the number of samples to take, and the
power supply settings to use. The following is a typical software
configuration file (*.cfg):
[EVAL-CONTROL BOARD]
partname:AD7484
programname:ad7484.PRG
samplefrequency:1200000
maxsamplefrequency:2200000
samples:2048
+/−15V:on
dvdd:5:on
avdd:5:on
bus:on
;options 2scomp, binary
dataformat:binary
numberofbits:14
inputVmax:2.5
inputVmin:0
[endofconfig]
Figure 5. Setup Menu Window
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