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Quick Start

The following instructions are for installing USB drivers

and the EV kit software. Once the USB drivers and EV

kit software have been installed, refer to the

Quick Start

section of the appropriate EV kit data sheet for EV kit-

specific instructions.

Recommended Equipment

• USBTO232 board (USB cable included)

• Maxim EV kit (or EV system) with a COM port PC

connection

• Corresponding EV kit data sheet

• User-supplied PC with a USB port

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

98SE/2000/XP operating system.

Procedure

1) Visit the Maxim website (www.maxim-ic.com/evkit-

software) to download the latest version of the EV

kit software that supports USB. Save the EV kit soft-

ware to a temporary folder and uncompress the file,

if it is a .zip file.

2) Install the EV kit software on your computer by run-

ning the INSTALL.EXE program inside the tempo-

rary folder. The program files are copied to

C:\Program Files\MAXxxxxx and icons are creat-

ed in the Windows Start | Programs menu.

3) Uncompress the USB driver file copied into

C:\Program Files\MAXxxxxx after the software is

installed. If you are using Windows 98SE, uncom-

press the USB_Driver_98_ME_V1.09.zip file. If you

are using Windows 2000/XP, uncompress the

USB_Driver_XP_2K_V2.00.zip file. Uncompress

the contents of the .zip file into C:\Program

Files\MAXxxxxx.

4) Verify that the following USBTO232 jumpers are in

the default positions:

JU1: (1-2)

JU2: (2-3)

JU3: (2-3)

5) Connect the included USB cable from the PC’s USB

port (Type A) to the Type B USB connector on the

USBTO232 board.

6) Verify that the red VCC power LED (D1) lights up.

Also verify that the green VCCIO power LED (D2)

lights up.

7) Go to the appropriate USB

Driver Installation sec-

tion in this data sheet for the version of Windows

you are using and return to step 8 when finished.

For example, if you are using Windows XP, go to

the

Windows XP USB Driver Installation section.

Windows XP: Page 3

Windows 2000: Page 11

Windows 98SE: Page 25

8) Connect the USBTO232 board to the EV kit (or EV

system) by connecting the male DB9 connector on

the USBTO232 board to the female DB9 connector

on the EV kit.

9) Refer to the

Quick Start section of the appropriate EV

kit data sheet for further EV kit-specific instructions.

Detailed Description of Hardware

The USBTO232 is an adapter board that converts a

PC’s USB port into a standard COM port. The

USBTO232 board has three configurable jumpers: JU1,

JU2, and JU3. Jumper JU1 is the I/O supply selection

(see Table 1), jumper JU2 is the USB power-supply

indicator (see Table 2), and jumper JU3 is the 3.3V

power-supply indicator (see Table 3).

Table 1. I/O Supply Selection (VCCIO)

*

Default position.

Table 2. USB Power-Supply Indicator

(VCC–D1)

*

Default position.

Table 3. 3.3V Power-Supply Indicator

(VCC30–D2)

*

Default position.

JUMPER

SHUNT POSITION

DESCRIPTION

1-2*

VCCIO = VCC = 5V

JU1

2-3

VCCIO = VCC30 = 3.3V

JUMPER

SHUNT POSITION

DESCRIPTION

1-2

General-purpose LED

connected to CBUS0

JU2

2-3*

Indicates USB power present

when red LED (D1) is lit

JUMPER

SHUNT POSITION

DESCRIPTION

1-2

General-purpose LED

connected to CBUS1

JU3

2-3*

Indicates regulated 3.3V

power present when green

LED (D2) is lit

USB-to-COM Port Adapter Board User Guide