Infocus C95 Benutzerhandbuch

Projector Control

Page 5

Version 1.

Currently there is only one type of body so the size is fixed to 0x0006. The CRC field contains the CRC of the message.
The CRC algorithm is given in Appendix 1. To disable CRC set CRC_lo=0x00 and CRC_hi = 0x00.
The Message Head – if the CRC are disabled – then looks like the following string:
0xBE  0xEF 0x80 0x06 0x00 0x00 0x00.

 

This Head will be present in all strings sent to the projector from the host.

The message body has the following structure:

Byte 0

Byte 1

Byte 2

Byte 3

Byte 4

Byte 5

OpTypeLo

0x00

FuncNum_lo

0x00

Opval_lo

Opval_hi

Field Name

Field Value

Description

OpTypeLo
0x01

Operation Set. Set current value

0x02

Operation Get. Gets the current value

0x03

Operation Initialize. Initialize the value to default.
Should not be used

0x04

Operation Increment. Increment the value by one
step. Only valid for “Adjust” functions.

0x05

Operation Decrement. Decrement the value by one
step. Only valid for “Adjust” functions.

0x06

Operation Execute. Execute the operation. Only
used for “Execute” operations

FuncNum

The actual function number to execute. A list of
usable FuncNum is given in Chapter 9

-

Only used by Operation Set. The actual value to set
the operation to. For all other operation actions, this
field is set to 0x0000.