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LC-W4 Basic Serial Command Functional Specifications

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Functional Execution Command

6.1 Format

6.1.1 PC issues a command in format as below:

“C” Command [CR]

Command: two characters (Refer to Functional Execution Command Table)

6.1.2 A projector changes the received data to decode and returns a result after being ready to

receive next command.

[ACK] [CR]: (0x06, 0x0D) When received Functional Execution Commands.

6.1.3 When the received data cannot be decoded, it returns “?” [CR]

6.2 Command Pipelining

When some functions (Volume +/-, Zoom +/-, etc.) need the command pipelining, the

performance is the same as that of the remote control.

6.2.1 System: issue any command every 100ms.

6.2.2 When receiving the appropriate command, the function is executed for 120ms from the

moment.

6.2.3 When receiving the same command continuously within 120ms, the function is executed for

another 120ms from the moment.

6.2.4 When there is no incoming command after 120ms, the execution of pipelining is stopped.

6.2.5 When the projector receives other incoming commands within 120ms, the execution of

pipelining is stopped.

6.3 Transfer Example

Change to video mode with Basic Command.

Command

PC ĺ Projector “C” “0” “7” CR

Projector ĺ PC ACK CR

Processing

(a few ms – 5s)

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Eiki LC-W4 Manual de usuario Pagina 7