Maxim Integrated │ 6

www.maximintegrated.com

Evaluates: MAX77643

MAX77643 Evaluation Kit

Quick Start

Follow this procedure to become familiar with the EV kit.

Note: In the following sections, software-related items are

identified by bolding. Text in

bold and underlined refers

to items directly from the EV kit software. Text in italics

and underlined refers to items from the Windows operat-

ing system.

Required Equipment

● MAX77643 EV Kit

● MAX77643 EV Kit GUI

● Windows-Based PC

● Power Supply

● Ammeter

● DVM

● Micro-USB Cable

Procedure

1) Install the GUI software. Visit the product web-

page at

http://www.maximintegrated.com/MAX-

download the latest version of the EV kit software.

Save the EV kit software to a temporary folder and

extract the files from the ZIP file.

2) Install EV kit shunts according to Table 1.

3) Connect a Micro-B USB cable between the EV kit

USB port labelled “GUI” and the Windows-based PC.

4) Apply a 3.7V supply (set for 100mA current limit)

through an ammeter (set for 10mA range) across the

supply on.

5) Open the GUI and select

DeviceConnect in the

upper-left corner. Wait for a

CONNECTED_DE-

VICE_LIST window to pop up, and then press the

Connect button.

6) Press the on-key (SW1).

7) Measure SBB0, SBB1, and SBB2 with a voltmeter to

ensure that the device is on.

This concludes the Quick Start procedure. Users are

encouraged to explore the device and its register settings

with the GUI. For guidance on configuring the GPIOs,

see the GPIO Quick Start section. During general device

evaluation, set the ammeter range to greater than or

equal to 1A to minimize the impact of its series resistance.

For more information on the GUI, see the Software sec-

tion.

Table 1. Default Shunt Positions and Jumper Descriptions

REFERENCE

DESIGNATOR

DEFAULT

POSITION

FUNCTION

J3

1-2

1-2: Connects nEN to SW1 (Push-button).

2-3: Connects nEN to SW2 (Slide-switch).

J4

1-2

1-2: Connects INLDO to SBB0.

J5

3-4

3-4: Connects GPIO0 to GUI GPIO0 (See the GPIO Quick Start section for more details)

5-6: Connects GPIO0 to ground.

J8

3-4

3-4: Connects GPIO1 to GUI GPIO0 (See the GPIO Quick Start section for more details)

5-6: Connects GPIO1 to ground.

J6

1-2

J7

1-2

J9

1-2

J10

2-3

J11

1-2

1-2: Connects SCL to the on-board FT2232 UART through the MAX3395 level shifter.

J12

1-2

1-2: Connects SDA to the on-board FT2232 UART through the MAX3395 level shifter

J201

1-2

1-2: Connects SBB0 to the on-board electronic load.