EVP380 Command Frames: Folder Navigation, Playback Control, and more

Modified on Mon, 27 Jul at 4:08 PM

TABLE DES MATIÈRES

Jump to Folder Commands
Playback and Standby Commands
Volume Adjustment
Information Requests

Jump to Folder Commands

Byte	Role	Value	Description
0	Sync	0x80 \| id	Synchronization byte and player identifier
1	Command	0x01	Jump to a folder (000-127)
		0x11	Jump to a folder (128-255)
		0x21	Jump to a folder (256-383)
		0x31	Jump to a folder (384-511)
		0x41	Jump to a folder (512-639)
		0x51	Jump to a folder (640-767)
		0x61	Jump to a folder (768-895)
		0x71	Jump to a folder (896-999)
2	Parameters	[0x00-0x7F]	Folder number in the command range (0-127)

Example
0x81 0x41 0x7C → Instruction for player 001 to jump to folder 636.

Playback and Standby Commands

Byte	Role	Value	Description
0	Sync	0x80 \| id	Synchronization byte and player identifier
1	Command	0x02	Playback and standby commands
2	Parameters	0x01	PLAY — Playback from the start of the file
		0x02	Stop
		0x03	Next track in the current folder
		0x04	Previous track in the current folder
		0x05	Pause / Play at the current position
		0x06	Play next folder
		0x07	Play previous folder
		0x08	Put the player in standby and exit standby mode
		0x09	Increase volume by +1 step
		0x0A	Decrease volume by -1 step
		0x0B	Unused
		0x0C	Put the player in standby
		0x0D	Wake the player
		0x0E	Pause the player
		0x0F	Resume playback after a pause
		0x10	Mute / Unmute the audio output
		0x11	Mute the audio output
		0x12	Unmute the audio output to its previous level
		0x13	Put the screen in standby via HDMI-CEC
		0x14	Turn on the screen via HDMI-CEC (One Touch Play)
		0x15	Put the screen in standby or turn it on via HDMI-CEC depending on the context
		0x16	Turn on a projector via PJLINK
		0x17	Turn off a projector via PJLINK

Volume Adjustment

Byte	Role	Value	Description
0	Sync	0x80 \| id	Synchronization byte
1	Command	0x03	Volume command
2	Parameters	[0x00-0x64]	Volume adjustment (0-100)

Information Requests

The player can provide information to a connected device via the RS-232 link to obtain the player's status, the currently playing title, remaining time, and other information.

Byte	Role	Value	Description
0	Sync	0x80 \| id	Synchronization byte and player identifier
1	Command	0x04	Information request
2	Parameters	0x01	Player status (PLAYING / STOP / PAUSE / ERROR)
		0x02	Name of the currently playing file
		0x03	Name and location of the file (e.g., 001/bird.mp4)
		0x04	Media used (USB / SD / Internal Memory)
		0x05	Unused
		0x06	Name of the currently playing folder (e.g., 005)
		0x07	Unused
		0x08	Unused
		0x09	Remaining time of the current track (e.g., 00:05:14)
		0x0A	Total time of the current file (e.g., 01:42:27)
		0x0B	Player volume value (0-100)

When the player receives an information request, it sends the data in ASCII format on the Tx pin of the RS-232 output. A CR/LF (carriage return/line feed) is sent at the end of the information.

Frame sent to the player to request player status: 0x81 0x04 0x01
    Byte 1: 0x81: status byte, player number 001
    Byte 2: 0x04: information request
    Byte 3: 0x01: request for player status

Frame sent to the player to request remaining time: 0x82 0x04 0x09
    Byte 1: 0x82: status byte, player number 002
    Byte 2: 0x04: information request
    Byte 3: 0x09: request for remaining time
    The player returns: 00:03:12 + CR/LF (in ASCII) = 30 30 3A 30 33 3A 31 32 0D 0A (in Hex)