IDT USB-BRIDGEV2-EVAL Evaluation Board Manual

USB-BRIDGEV2-EVAL

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© 2015 Integrated Device Technology, Inc.

Evaluation Board Manual

PC – USB to I2C Interface Adapter

Features

 Simple USB to I2C interface for IDT evaluation Kits
 Additional Digital and Analog I/O option
 IDT Test Interface bridge for supported IDT devices
 Fully assembled
 Micro USB connector with Cable included
 Firmware update option
 LED status indicators

Evaluation Kit Contents

 USB-BRIDGEV2-EVAL board
 USB A to micro-USB AB cable
 USB-BRIDGEV2-EVAL manual
 CD containing:

- Electronic copy of USB-BRIDGEV2-EVAL manual

- PC USB Driver for Windows

Description

The USB-BRIDGEV2-EVAL USB Interface adapter board
provides quick access to the I2C and other features of
various IDT devices.

The tool is designed to allow PC based graphical user
interface access via I2C interface, general purpose I/Os,
analog input as well as IDT’s proprietary OTP (One Time
Programmable) Memory interface.

The board supports a I2C voltage level adjustment to the
target system and an onboard 1.8V regulator for 1.8V
slave-I2C operation in addition to the 5V USB derived
operation.

The board allows easy access via the USB micro AB
connector and included PC driver Software Package.

Figure 1 - USB-BRIDGEV2-EVAL, Full board image (not to scale)

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Evaluation Board Manual

Table of Contents

Table of Contents .............................................................. 2

Revision History ................................................................ 2

Windows Driver Installation for Windows XP to Win7 ....... 3

Windows Driver Installation for Windows 8 ....................... 5

Device Configuration ......................................................... 9

Schematic ....................................................................... 10

Ordering Guide ................................................................ 11

Revision History

August 3, 2015 Version 2.0
April 24, 2013 Version 1.0

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Evaluation Board Manual

Windows Driver Installation for Windows XP to Win7

The first time the USB-BRIDGEV2-EVAL is used the Windows Drivers must be instal led.

2

The installation of the Windows USB-to I
following steps:

1. Connect the USB-BRIDGEV2-EVAL without any target evaluation system connected to your PC via the USB cable
included.

2. Choose Update in the Device Manager or follow the instructions for a new device found after first connect of the
interface.

C-interface on a Windows (XP to Win7) 32-bit or 64-bit system is shown by the

3. Browse manually for the driver location:

4. Choose “Have a Disk” and select the “idt_usb_bridge.inf” from the uncompressed driver folder.

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5. Accept the Warning (IDT is currently certifying the driver with Microsoft™ to bypass the warning):

6. Verification of successful driver installation:

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Windows Driver Installation for Windows 8

The first time the USB-BRIDGEV2-EVAL is used the Windows Drivers must be installed.
The installation of the Windows USB-to I2C-interface on a Windows 8 system is shown by the following steps. Additional

reference is available at How to install a driver that does not contain digital signature information in Windows 8?

1. Connect the USB-BRIDGEV2-EVAL without any target evaluation system connected to your PC via the USB cable
included. The computer will report an error message that the driver is not digitally-signed.

2. Hold Shift key while choose to restart the computer.

3. Windows will show options below. Select Troubleshoot, Advanced options, Startup Settings, Restart.

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Evaluation Board Manual

4. After the computer restarts, select option 7) Disable driver signature enforcement.

5. When Windows restarts, reconnect the USB-BRIDGEV2-EVAL without any target evaluation system connected to
your PC via the USB cable included. The computer will report that driver is not successfully installed. Use Device
Manager to update the driver.

a. Choose Update in the Device Manager or follow the instructions for a new device found after first connecting

the interface.

b. Browse manually for the driver location:

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Step 5d

Evaluation Board Manual

c. Choose “Have a Disk” and select the “idt_usb_bridge.inf” from the uncompressed driver folder.

d. The computer will alert that “Windows can't verify the publisher of this driver software”. Choose “Install this

driver software anyway” to accept the Warning (IDT is currently certifying the driver with Microsoft™ to
bypass the warning):

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Step 6

Evaluation Board Manual

6. Verification of successful driver installation. Once the driver is installed, running IDTP91xx-PMIC-GUI should show
that the device is connected.

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µC CON

Level

Shift A

Level

Shift B

1

.8V

LDO

5V-USB

DATA

USB

VPUP

JP1

JP2

JP3

10

1 (SCL)
2 (SDA)

7
9

6

3 Level

8

(Analog)

11-14 (5V GPIO)

5 (Tri-Level)

3-4 (5V PWM)

Evaluation Board Manual

Device Configuration

Figure 2, Board Configuration

The USB-BRIDGEV2-EVAL has to be configured for the target system used. The detailed requirement for the target system
can be found in the respective manual.

The configuration will adjust the voltage level of the 2 on board level shifters (including pull up resistors) to the required target
system level using JP1,2 and 3 highlighted in the figure above and below.

Option 1 (JP1 shorted, JP2,3 open) will provide a 1.8V (on board LDO) voltage level for the I2C interface and CON-7,8 pins.
Option 2 (JP2 shorted, JP1,3 open) will provide the USB 5V voltage level for the I2C interface and CON-7,8 pins.
Option 3 (JP3 shorted, JP1,2 open) will provide the VPUP voltage level for the I2C interface and CON-7,8 pins. VPUP is

provided through the CON interface connector and allows the target system to supply the desired voltage level.
Option 1 and 2 can be combined with JP3 shorted to provide the 1.8V or 5V to the target system.

or provide a voltage through VPUP with JP1 and JP2 shorted!

Figure 3, System Overview

Never short JP1 and JP2 the same time

WARNING:

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Schematic

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USB-BRIDGEV2-EVAL

$100.00

0°C to +85°C

Box 14”x10”x2”

1

Evaluation Board Manual

Ordering Guide

Table 1. Ordering Summary

PART NUMBER PRICE AMBIENT TEMP.

RANGE

SHIPPING CARRIER QUANTITY

www.IDT.com

6024 Silver Creek Valley Road
San Jose, California 95138

Tel: [phone]

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informatio n in this docum ent, includi ng descripti ons of product features an d performance, is subject t o change with out notice. P erformance s pecifications and the oper ating paramet ers of the
described products are det ermined i n the i ndepende nt state and are n ot guar anteed to perfo rm the sam e way w hen inst alled in c ustom er produc ts. The informa tion cont ained her ein is provided
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