Data Sheet

Shenzhen Waytronic Electronics Co., Ltd. WT2003S-16S Chip
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Return format
Operation code
Return value(2BYTE)
0XC5
The total number of files
3.4.4.4. Query the total number of music files in the specified SD card folder (C6)
Start code
Length
Command
Folder Name (from high to low)
Check code
End code
7E
08
C6
‘M’
‘U’
‘S’
‘I’
‘C’
XX
EF
The folder name is in the form of ASCII code. The above commands mean reading the total number of
audio files in “MUSIC” folder of root directory.
Return format (C6 00 00 means no audio file or such folder)
Operation code
Return value(2BYTE)
0XC6
The total number of files
3.4.4.5. Query the total number of music files in U disk (C7)
Start code
Length
Command
Check code
End code
7E
03
C7
CA
EF
Return format
Operation code
Return value(2BYTE)
0XC7
The total number of files
3.4.4.6. Query the total number of music files in specified U disk folder (C8)
Start code
Length
Command
Folder name(from high to low)
Check code
End code
7E
08
C8
‘M’
‘U’
‘S’
‘I’
‘C’
XX
EF
The folder name is in the form of ASCII code. The above commands mean reading the total number of
audio file in “MUSIC” file of root directory.
Return format (C8 00 00means no audio file or this folder)
Operation code
Return value(2BYTE)
0XC8
The total number of files
3.4.4.7. Query the file track currently playing (C9)
Start code
Length
Command
Check code
End code
7E
03
C9
CC
EF