MAXQ2000 Evaluation Kit

_____________________________________________________________________

3

Detailed Description

This evaluation kit must be used with the following doc-

uments:

• MAXQ2000 Data Sheet

• MAXQ Family User’s Guide

• MAXQ Family User’s Guide: MAXQ2000 Supplement

The MAXQ2000 EV kit board and LCD display daughter-

board are fully defined in the schematics provided in this

document. However, a short description of the major

components and connectors of the boards follows.

Power Supplies

There are three different ways to set up power supplies

when using the MAXQ2000 EV kit. The two boards that

require power supplies are the MAXQ2000 EV kit board

and the serial-to-JTAG interface board. The LCD

daughterboard simply plugs into the MAXQ2000 EV kit

board and does not require its own power supply.

Two different types of power supplies (which are not

included with the MAXQ2000 EV kit) are required to set

up the configurations listed below.

• 5V, ±5% 300mA DC regulated supply (25mm,

center-post, positive female connector) to power the

serial-to-JTAG interface board.

• 6V to 9V, 300mA DC supply (2.5mm, center-post,

positive female connector) to power the MAXQ2000

EV kit board.

Running Both Boards from

Separate Power Supplies

To run each of the boards from its own power supply,

connect supplies as follows.

• Connect a 5V, ±5% regulated DC wall supply to the

J2 power plug of the serial-to-JTAG interface board.

• Connect a 6V to 9V DC wall supply (center post posi-

tive, at least 300mA capacity) to the J1 power plug of

the MAXQ2000 EV kit board.

Note: When using two power supplies in this man-

ner, the JU11 jumper on the MAXQ2000 EV kit board

must be DISCONNECTED.

Running Both Boards from a Single Power Supply

If the serial-to-JTAG interface board is being used, a

single power supply can be used to power both boards

as follows.

• Connect a 5V, ±5% regulated DC wall supply to the

J2 power plug of the serial-to-JTAG interface board.

• Connect the JH3 jumper on the serial-to-JTAG inter-

face board.

• Connect the JU11 jumper on the MAXQ2000 EV kit

board.

Note: Do not connect a power supply to the J1 plug

on the MAXQ2000 EV kit when powering the boards

in this manner.

Running the MAXQ2000 EV KIT Board

from a Single Power Supply

If the MAXQ2000 has already been programmed using

the JTAG interface, it is possible to disconnect the seri-

al-to-JTAG board and power up the MAXQ2000

Evaluation Kit board on its own. This simply executes

the previously loaded firmware, with no possibility of in-

application load or debugging.

• Connect a 6V to 9V DC wall supply (center post posi-

tive, at least 300mA capacity) to the J1 power plug of

the MAXQ2000 EV kit board.

DESIGNATION

QTY

DESCRIPTION

SUPPLIER

PART

C1–C4

4

Empty capacitor footprint (0805)

—

—

J1

1

2 x 26, 0.1” spaced socket

3M

929975-01-26

R1–R3

3

Empty resistor footprint (0805)

—

—

U1

1

Static, 3V, 4-1/2 digit display LCD

Varitronix

VI-502-DP-RC-S

Component List—LCD Display Daughterboard