EVAL-AD421EB Datasheet, PDF (3/7 Pages) Analog Devices – Evaluation Board for Loop Powered 4-20mA DAC

RUNNING THE AD421 INTERFACE SOFTWARE
Included in the evaluation board package is a PC-compatible
disk which contains software for controlling and evaluating the
performance of the AD421 using the printer port of a PC. There
are a total of thirteen files on the distribution disk.
To use the software, the user must have an IBM-compatible PC
and Windows 3.1 must be installed. Start Windows and, using
either the RUN command or the file manager, start the program
called SETUP.EXE on the distribution disk. This automatically
installs the application and sets up a window called ANALOG
DEVICES. The application ICON is found here. To start the
application, double click on the ICON.
PRINTER PORT SELECTION
When the program starts, a window as shown in Figure 2
appears and the user is asked to select a printer port. The user
can select the port they wish to use by cliciking on the appropri-
ate option button and then clicking OK. The hexadecimal
numbers displayed beside each option correspond to the
memory address of the port in question. The correct selection
depends on what type of computer is being used (Desktop,
Laptop etc). LPT1 works for most machines and is the default
selection. When using a Compaq laptop, select PRN. A
different port can be selected at any time from the MAIN
MENU.
EVAL-AD421EB
Figure 2. Parallel Port Selection.
REV. A
Figure 3. Main Window.
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