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MAX5474 Evaluation Kit
Quick Start
Recommended Equipment
Before beginning, the following equipment is needed:
? Maxim MAX5474 EV kit (USB cable included)
? User-supplied Windows 2000/XP/Vista-compatible
PC with a spare USB port
? One ohmmeter
Note: In the following sections, software-related items
are identified by bolding. Text in bold refers to items
directly from the EV kit software. Text in bold and
underlined refers to items from the Windows operating
system.
Procedure
The EV kit is fully assembled and tested. Follow the
steps below to verify board operation. Caution: Do not
turn on the power supply until all connections are
completed.
1) Visit www.maxim-ic.com/evkitsoftware to download
the latest version of the EV kit software,
5474Rxx.ZIP. Save the EV kit software to a tempo-
rary folder and uncompress the ZIP file.
2) Install the EV kit software on the computer by run-
ning the INSTALL.EXE program inside the tempo-
rary folder. The program files are copied and icons
are created in the Windows Start | Programs
menu.
3) Verify that a shunt is installed on pins 1-2 of jumper
JU1. This configures the MAX5474 IC’s VDD to 3.3V
from the USB interface circuit.
4) Verify that a shunt is installed on pins 1-3 of
jumpers JU2, JU3, and JU4. This configures the
logic-input pins to receive signals from the USB
interface circuit.
5) Verify that no shunt is installed on jumpers JU5 and
JU6, the L PCB pad is not connected to GND, and
the H PCB pad is not connected to the W PCB pad.
6) Connect the ohmmeter across the W and L PCB
pads.
7) Connect the USB cable from the PC to the
MAX5474 EV kit. A Building Driver Database win-
dow pops up in addition to a New Hardware
Found message when installing the USB driver for
the first time. If a window similar to the one
described above does not appear after 30s,
remove the USB cable from the board and recon-
nect it. Administrator privileges are required to
install the USB device driver on Windows
2000/XP/Vista.
8) Follow the directions of the Add New Hardware
Wizard to install the USB device driver. Choose the
Search for the best driver for your device option.
Specify the location of the device driver to be
C:\Program Files\MAX5474 (default installation
directory) using the Browse button. During device
driver installation, Windows may show a warning
message indicating that the device driver Maxim
uses does not contain a digital signature. This is not
an error condition and it is safe to proceed with
installation. Refer to the USB_Driver_Help.PDF doc-
ument for additional information.
9) Start the MAX5474 EV kit software by opening its
icon in the Start | Programs menu.
10) The software automatically searches for the
MAX5474. After successful connection, the EV kit soft-
ware main window appears in the upper-left corner of
the window. Select the Up/Down buttons to change
the wiper position, or enter the desired wiper position
into the Wiper Input combo box (see Figure 1).
See the Detailed Description of Software section for
more information on the software features.
Figure 1. MAX5474 Evaluation Kit Software Main Window
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