NEC LCD8205 Manual do Utilizador descarregar pdf (Página 10)

-9

bytes) Type: Operation type code

00h: Set parameter

01h: Momentary

Like the Auto Setup function which automatically changes the parameter.

This returned value from the monitor is encoded to ASCII characters.

Ex.) The byte data 01h is encoded to ASCII character '0' and '1' (30h and 31h).

-13

bytes) Max. value: Maximum value which monitor can accept. (16bits)

This returned value from the monitor is encoded to ASCII characters.

Ex.) '0','1','2' and '3' means 0123h (291)

-17

bytes) Current Value: (16bits)

This returned value from the monitor is encoded to ASCII characters.

Ex.) '0','1','2' and '3' means 0123h (291)

byte) ETX: End of Message

ASCII ETX (03h)

5.2.3. Set parameter

Send this message to change monitor’s adjustment and so on.

The controller requests a monitor to change value.

byte) STX: Start of Message

ASCII STX (02h)

-3

bytes) OP code page: Operation code page

This OP code page data must be encoded to ASCII characters.

Ex.) The byte data 02h must be encoded to ASCII '0' and '2' (30h and 32h).

Refer to 5.3.1. “VCP (OP code page/OP code) List”.

-5

bytes) OP code: Operation code

This OP code data must be encoded to ASCII characters.

Ex.) OP code 1Ah -> OP code (Hi) = ASCII '1' (31h)

OP code (Lo) = ASCII 'A' (41h)

Refer to 5.3.1. “VCP (OP code page/OP code) List”.

-9

bytes) Set value

: (

16bit)

This data must be encoded to ASCII characters.

Ex.) 0123h -> 1

(MSB) = ASCII '0' (30h)

= ASCII '1' (31h)

= ASCII '2' (32h)

(LSB)

= ASCII '3' (33h)

byte) ETX: End of Message

ASCII ETX (03h)

5.2.4. "Set parameter" reply

<< The Monitor echoes back the parameter and status of the requested operation code.>>

byte) STX: Start of Message

ASCII STX (02h)

OP code page

OP code Set Value

STX

Hi Lo Hi Lo MSB

LSB

ETX

-3

-5

-9

Result

OP code page

OP code

Type Max value Requested setting Value

STX

Hi Lo Hi

Lo Hi

MSB

LSB

MSB

LSB

ETX

-3

-5

-7

-9

-13

-17

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 78 79

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NEC LCD8205 Manual do Utilizador Página 10

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