EVAL-AD421EB

REV. A

–3–

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.

Figure 2. Parallel Port Selection.

Figure 3. Main Window.