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Evaluate: MAX6884/MAX6885

MAX6884 Evaluation System/

Evaluation Kit

Quick Start

Recommended Equipment

● Maxim MAX6884EVCMOD2 (contains MAX6884 EV

kit board and CMOD232 module)

● DC power supply, 9VDC at 200mA (included with

CMOD232 module)

● Computer running Windows 98, 2000, or XP with a

spare serial (COM) port

● Standard 9-pin,

straight-through, male-to-female

cable (serial extension cable) to connect the com-

puter’s serial port to the Maxim command module

interface board

● DC power supply, 3.3V at 100mA

Procedure

The MAX6884 EV kit is fully assembled and tested.

Follow the steps below to verify board operation.

Do not

turn on the power supply until all connections are

completed:

Command Module Setup

1) Enable the SDA/SCL pullup resistors on the com-

mand module by setting both switches (SW1) to the

on position.

2) Set the command module working voltage to 3.3V

by placing a shunt across pins 1-2 of the VDD select

jumper (J1).

3) Connect a cable from the computer’s serial port to

the command module (CMOD232) interface board.

Use a

straight-through 9-pin male-to-female cable.

To avoid damaging the EV kit or your computer, do

not use a 9-pin null-modem cable or any other propri-

etary interface cable that is physically similar to the

straight-through cable.

4) Connect the provided wall cube power supply to the

CMOD232 board.

EV Kit Setup

0xA0h by verifying that a shunt is placed across pins

2-3 of jumper JU4.

6) Ensure that shunts are installed across pins 2 and 3

of jumpers JU1, JU2, and JU3.

7) Ensure that a shunt is NOT installed on jumper JU5.

8) Connect the 3.3V DC power supply to the VLED and

GND pads.

9) Connect the 3.3V DC power supply to the VCC and

GND pads.

10) Carefully align the 20-pin connector of the MAX6884

EV kit with the 20-pin header of the CMOD232 inter-

face board. Gently press them together.

11) The MAX6884.EXE software program can be run

from the CD-ROM or hard drive. Use the INSTALL.

EXE program to copy the files and create icons in the

Windows 98/2000/XP

Start menu.

12) Plug the CMOD232 wall cube into an electrical outlet.

13) Turn on the 3.3V power supply.

14) Start the MAX6884 program by opening its icon in the

Start menu.

15) Normal device operation can be verified by the

“Status: MAX6884 Operational” text in the interface

box.

Detailed Description of Software

Main Window

The evaluation software’s main window (Figure 1) con-

sists of an

Interface diagnostic box, an ADC Conversion

Results box, the MAX6884 Control Tabs (see below) and

some system-level controls.

The

Interface box indicates the current Device informa-

tion, the

sent or received for the last read/write operation. Select

the installed device

Part # and Address using the appro-

priate controls. The double arrows (>> or <<) indicate

the direction of the data flow; where >> indicates that the

master (CMOD232 board) device is transmitting data to

the slave (MAX6884) and << indicates that the master

device is receiving data from the slave.

The software polls the checked ADC conversion registers

of the MAX6884 every 500ms. To stop reading these

registers, uncheck the appropriate checkbox in the

ADC

Conversion Results section of the MAX6884 software.

Select the desired reference type (

Internal or External)

from the

Reference drop-down box. Enter the reference

Note: Indicate that you are using the MAX6884/MAX6885 when contacting this component supplier.

SUPPLIER

PHONE

FAX

WEBSITE

TDK

847-803-6100

847-390-4405

www.component.tdk.com

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