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DAEV9118.001

29 January, 2002

48,&.67$57

1

Copy files from the disk to the desired directory of a PC

2

Restart the PC in MS-DOS mode.

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3

Connect the data bus between the two evaluation boards (PC adapter and buzzer boards)

4

Connect buzzer or loudspeaker to the JP1 of the buzzer board, see figure 1

5

Connect 7.5 V power supply to the buzzer board. Adjust current limiter to 600 mA if possible

6

Connect adapter board (PCB with 25-pin D-type connector) to the parallel port of the PC

7

Run the evaluation kit program by typing: buzzer –p XX –m YY (XX is the number of the parallel port, YY

is the melody number)

Example: buzzer –p 1 –m 0

8

You should hear the signal from the buzzer or the loudspeaker

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The hardware is partitioned into two PCBs in order

to provide robust data transfer from a PC to

MAS9118 even if the distance between the two is

several

meters.

Most

of

the

components

on

evaluation board are used for the data transfer from

the PC to MAS9118.

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The time domain is synchronized to the crystal

oscillator frequency (F

frequencies are generated from this frequency as

follows:

8

= 1000 kHz

(1)

(2)

8 = 1000 kHz

(3)

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The PCB including buzzer (buzzer board) adjusts

supply and signal voltages of MAS9118. It has five

jumpers, see figure 1.

X3 is used for connecting 5 V for the interface logic

(default position is ON).

X5 is used for connecting the interface voltage level

to MAS9118 (default position is ON). The voltage is

normally 1.8 V and can be adjusted by R2 trimmer.

X4 is used for connecting the operating voltage to

MAS9118 (default position is ON). The voltage is

normally 3.6 V and can be adjusted by R1 trimmer.

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X6 is used for generating reset signal to MAS9118

(default position is OFF). Since MAS9118 has

power-on-reset this jumper can normally be off.

JP1 is used for connecting a buzzer, a loudspeaker

or a measurement instrument to the output pins of

MAS9118 (OUTP, OUTN).

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(62.5 kHz). MS-DOS mode is required in order to

quarantee continuous data flow.

Note that the buzzer.exe program will disable the PC

system clock interrupt and stop the PC system time.

Therefore, it is recommended to boot the PC after

using the program in order to retrieve the right

system time.

The help of the buzzer.exe program is shown each

time the program is started.

The melodies are started by typing

EX]]HUSSRUW±PPHORG\

Zhere #port is the parallel port of the PC used for

the data transfer (0…3) and

PHORG\ is the number of the pre-programmed

melody (0…5).