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MAX5498 Evaluation Kit
Procedure
The MAX5498 EV kit is fully assembled and tested.
Table 1. Default Jumper Settings
Follow the steps below to verify board operation.
Caution: Do not turn on the power (insert USB cable
into computer) until all connections are completed.
1) Visit www.maxim-ic.com/evkitsoftware to down-
load the latest version of the EV kit software,
5498Rxx.ZIP. Save the EV kit software to a tempo-
rary folder and uncompress the ZIP file.
2) Install the EV kit software on your computer by run-
ning the INSTALL.EXE program inside the tempo-
JUMPER
J1, J2
JU1
JU2
SHUNT
POSITION
3-4
1-2
2-3
DESCRIPTION
Provides a ground reference for
resistor mode measurements
EV kit powered from USB bus voltage
(5V)
VSS tied to GND (single-supply
operation)
rary folder. The program files are copied and icons
are created in the Windows Start | Programs
menu.
3) Ensure that the MAX5498 EV kit board’s jumper set-
tings are correct (see Table 1 for jumper settings).
4) Connect one of the ohmmeters across the W1 and
L1 pads.
5) Connect the other ohmmeter across the W2 and L2
pads.
6) Connect the USB cable from the PC to the EV kit. A
Building Driver Database window pops up in addi-
tion to a New Hardware Found message when
installing the USB driver for the first time. If a win-
dow that is similar to the one described above is not
seen after 30s, remove the USB cable from the
board and reconnect it. Administrator privileges are
required to install the USB device driver on
Windows 2000 and XP. Refer to Application Note
3601: Troubleshooting Windows Plug-and-Play and
USB for Maxim Evaluation Kits if any problems arise
during this step.
7) 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\MAX5498 (default installation direc-
tory) using the Browse button. During device driver
installation, Windows XP shows a warning message
indicating that the device driver Maxim uses does not
contain a digital signature. This is not an error condi-
tion and it is safe to proceed with the installation.
8) Start the EV kit software by clicking its icon in the
Windows Start menu.
9) The software automatically searches for the
MAX5498. After successful connection, MAX5498
EV Kit connected is displayed in the lower-left cor-
ner of the EV kit main window, as shown in Figure 1.
Move the Channel 1 or Channel 2 track bars and
press the Write button to set the wiper position.
Detailed Description of Software
The MAX5498 EV kit software graphical user interface
(GUI) is a Windows program that provides a convenient
means to control the MAX5498 (Figure 1).
Factory Reset
Pressing the Factory Reset button returns wipers 1
and 2 (and the nonvolatile memory) to the midscale tap
position.
Wipers 1 and 2 Position
In the Channel 1 group box, set the tap value (either by
typing the decimal tap number into one of the edit
boxes or by moving the track bar), and then press the
Write button.
In the Channel 2 group box, set the tap value (either by
typing the decimal tap number into one of the edit
boxes or by moving the track bar), and then press the
Write button.
As confirmation, the Command History window shows
the executed SPI sequence. The first hex value is the
command byte sent to the device and the next two hex
values correspond to the W-L tap value (e.g., SPI: 0x01,
0x80, 0x00).
Nonvolatile Programming
In the Channel 1 group box, set the tap value (either by
typing the decimal tap number into one of the edit
boxes or by moving the track bar), and then press the
Write NV button.
In the Channel 2 group box, set the tap value (either by
typing the decimal tap number into one of the edit
boxes or by moving the track bar), and then press the
Write NV button.
As confirmation, the Command History group box
diaplays the executed SPI sequence. The first hex
value is the command byte sent to the device and the
next two hex values correspond to the W-L tap value
(e.g., SPI: 0x11, 0x80, 0x00).
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