ENGLISH
Serial Remote Control (DN-V310 only)
■Commands can be sent to the DVD player and the status requested and sent to the host via
This DVD player can be controlled by a PC. Connect the player and a serial port on the PC with a
■
Pin no. | Signal |
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1 | - |
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2 | TXD |
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3 | RXD |
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4 | - |
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5 | GND |
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6 | - |
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7 | CTS |
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8 | RTS |
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9 | - |
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■Communication conditions
Configure the serial port of the PC as shown below.
Bit Rate | 9,600 bps |
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Data length | 8 bits |
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Parity | none |
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Stop bit | 1 bit |
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Flow control | None |
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■Basic format
•Command format
[group, command, parameter list]\r
•Response code format
0: No error
x: Error code x
Example 1:
Player receives : [PC, RC, 66]\r
Player sends : [PC, RC, 0]\r
When the external controller receives the response this implies that the player has verified the received message (syntax), and the command will be executed.
Example 2:
Player receives : [PC, PlayT, 16]\r
Player sends : [PC, PlayT, 2]\r
If an internal error occurs and the command cannot be executed, an error message (Error code 2 : Invalid parameter) will be send.
•Interval time
When transmitting commands consecutively, put more than 300 ms blank between commands.
■System commands
Communication between a DVD controller and the DVD player consist of 3 different types of information:
•External control commands
•External control status
•Asynchronous responses
The messages between the DVD and the DVD controller look like:
“[group, command, parameter list]\r”
A group, command and
The
When the player receives a message from the external controller, it will be acknowledged. This acknowledgment will be done in 2 different ways.
For external control commands, the acknowledgment will
look like: |
|
• Group | : group specified in the received message |
| (PC) |
• Command | : command specified in the received |
| message |
•
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