Canon LV-8235 UST Spécifications - Page 10

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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 (See Basic Functional Execution Command Table)

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

receive next command.

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

6.1.2 "?" [CR] When the received data cannot be decoded.

6.2. Command Pipelining

When some functions need the command pipelining, the performance is the same as that of the

remote control;

6.2.1. System: issues any command every 100 ms.

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

moment.

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

for another 120 ms from the moment.

6.2.4. When there is no incoming command after 120 ms, 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

Switch the projector to video mode with Basic Command.

PC → Projector

Projector → PC

LV-8235 UST Basic Serial Command Specifications

Command

"C" "0"

"7" CR

Processing

(A few ms

-7-

ACK

5s)