Maxim Integrated │ 3

www.maximintegrated.com

Evaluates: DS2401, DS2406, DS2411,

DS2413, DS2431, DS24B33, DS28E07

DS9090EVKIT

Evaluation System

Quick Start

Required Equipment

● DS9490R# USB-to-1-Wire/iButton adapter (included)

● DS9120P+ socket adapter (included)

● Computer with a Windows 8, Windows 7, Windows

Vista, or Windows XP operating system (32-bit or 64-

bit) and a spare USB 2.0 or higher port

● TSOC or TO92 parts (included)

● OneWireViewer software with bundled drivers

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.

DS9090EVKIT Setup

Procedure

1) Install the 1-Wire drivers. See the Installing the

DS9490R# and 1-Wire Drivers section for instructions.

2) DS9120P+ jumper settings:

a) Remove jumpers from the JB1 to leave only the

middle three jumpers connected. See Figure 4.

b) Note that when evaluating a DS2413P device,

jumpers J1 and J4 are to be populated. For all

other 1-Wire slave devices, do not populate J1

or J4 with a jumper. When using the DS2413P

in socket S1, the user can populate R3 and R4

with 10kΩ pullups; otherwise, these need to

be added externally. PIOA can be observed on

J3:1 and PIOB can be observed on J3:5. See

Figure 9 for resistor and pin location.

c) Note that when evaluating a DS2411P device,

is necessary to place a jumper to 3.3V and a

wire must be soldered to jump R3 and R5. See

Figure 5.

Note: Refer to the DS9120P and each device IC

data sheet for complete schematic and pin input and

output to confirm proper operation for each device to

be evaluated.

3) Insert the DS9490R# into a spare USB port of

the PC. Only after OneWire Drivers Installation is

completed should the DS9490R# be inserted. Once

inserted, wait for the operating system to complete

the plug-and-play process. For Windows 2003

and XP (SP2), the OS prompts about installing the

DS9490R# device with the

Add Hardware wizard

before continuing. Newer operating systems com-

plete the plug-and-play process without the wizard.

During the installation process, the drivers are set

up to point to the USB adapter as the default port

type and port 1 (USB1) as the default port number.

The default port type and number settings can be

changed at any time after installation by running the

Default 1-Wire Net program that is installed with

the drivers. To do so, simply click on

Start | Pro-

grams | 1-Wire Drivers xXX (xXX represents the

OS architecture, either x86 or x64). Then click on

the icon labeled

Default 1-Wire Net. If problems are

encountered during installation, refer to

Application

Note 1740: White Paper 6: 1-Wire Drivers Installa-

tion Guide for Windows, specifically the “Appendix

A: 1-Wire USB Adapter (DS9490) Installation Help”

section.

4) Connect the DS9120P+ to the DS9490R# with the

supplied RJ11-to-RJ11 cable. One end of the cable

should be plugged into the DS9120P+ board and the

other end into the DS9490R#. See Figure 6.

5) Insert the 1-Wire device of interest into the

DS9120P+ socket. See Figure 7 for proper chip

orientation.

Run the

OneWireViewer.

Click on

Start | Programs | 1-Wire Drivers xXX.

Then click on the

OneWireViewer icon. This runs

the OneWireViewer. If the OneWireViewer cannot

find a suitable Java Runtime Environment (JRE), it

prompts the user with a message to download the

latest one from www.java.com. Once the

OneWireViewer is running, the 64-bit ROM ID values

(i.e., the 1-Wire network addresses) of all 1-Wire

chips inserted into the evaluation board are dis-

played. Clicking on the chip’s address selects the

chip and starts communicating with it. The OneWire-

Viewer then makes other tabs available that contain

functionality to exercise the chip (i.e., read and write

data, files, exercise PIO pins, etc.). It is also possible

to run the OneWireViewer on OS platforms other

than Windows, but it could require special setup and/

or additional software installation. Refer to the

OneWireViewer website for more information at

www.maximintegrated.com/onewireviewer.

6) When properly installed, the follow GUI should ap-

pear as shown in Figure 8.

FILE

DESCRIPTION

OneWireDrivers_xXX.msi

OneWireViewer (Installation file)

DS9090EVKIT EV System Files