MAX187 Evaluation System/Evaluation Kit

2

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__MAX187 EV System Quick Start

This section applies only to the use of the MAX187 EV

kit operating with Maxim’s 68HC16 module.

1) Copy the files from the distribution disk to your hard

drive or to blank floppy disks. Store the MAX187 EV

kit software in its own directory to prevent conflicts

with other Maxim EV kit files. The necessary files are

in the root directory of the distribution disk, and

ancillary files are located in the SOURCE and

TMS320 subdirectories. These subdirectories are

not required for EV kit operation, and are described

in other sections of this manual.

2) Carefully connect the boards by aligning the 40-pin

header of the MAX187 EV kit with the 40-pin con-

nector of the 68HC16 µC module and gently press

them together. The two boards should be flush

against one another.

3) Use a small flat-blade screwdriver to connect a 9V

to 15V DC power source to the µC module. The ter-

minal block is located next to the on/off switch, in

the upper right corner of the module. Observe the

polarity marked on the board.

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

the µC module. If using a 9-pin serial port, use a

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

serial port uses a 25-pin connector, a standard 25-

pin to 9-pin adapter will be required.

5) Start up the MAX187 software on the IBM PC by set-

ting the current directory to match the directory con-

taining the Maxim programs, and then type the pro-

gram name “MAX187”.

6) The program allows the user to select which serial

port is connected to the µC module. Press the

space bar until the correct port is highlighted, then

press ENTER.

7) The MAX187 program will switch to terminal-emula-

tion mode. At this point, apply power to the 68HC16

module. The LED should light, and within 5 seconds

the program will display a logon banner. The LED is

a status indicator, not a power indicator; it will flash

to indicate module readiness. Refer to the 68HC16

module self-check system.

8) To download and run the RAM resident code on the

µC module, press ALT+L (i.e. hold down the ALT

key and strike the L key). The program prompts for

the file name. Press the ENTER key to download

and run the file KIT187.S19 on the 68HC16 module.

9) The KIT187.S19 RAM resident program offers a

menu of commands, listed in Table 1.

Stand-Alone MAX187 EV Kit

_________________________Quick Start

This section applies only to the use of the MAX187 EV

kit without the µC module.

1) Connect a regulated 5V DC power supply to the ter-

minals labeled POS5 and GND. The GND pad is

ground, and the POS5 pad is the 5V input. The

board draws less than 5mA of supply current.

2) To enable the MAX187’s internal reference, connect

the SHDN pin to 5V. To use an external reference,

leave the SHDN pin open and provide a reference

voltage at the VREF pad. To put the MAX187 in

shutdown mode, connect the SHDN pin to ground.

3) Connect the interface signals to the CS, SCK, and

DOUT test points. Use the AGND test point as sig-

nal ground. See the MAX187 data sheet for timing

information.

4) Apply the input voltage to the terminals labeled

INPUT and GND.

_______EV System Component List

____________EV Kit Component List

QTY

DESCRIPTION

1

MAX187 evaluation kit (MAX187EVKIT-DIP)

1

68HC16 µC module (68HC16MODULE-DIP)

DESIGNATION

QTY

DESCRIPTION

C1

1

0.1µF ceramic capacitor

C2, C3

2

4.7µF electrolytic capacitors

J1

1

Female 40-pin data connector

J4

1

6-pin header

JU1

1

3-pin header

R1

1

10k

Ω resistor

U1

1

Maxim MAX187ACPA

None

4

Rubber feet

None

1

8-pin socket for U1

None

1

MAX187 printed circuit board