Data Sheet

Shenzhen Waytronic Electronics Co., Ltd. WT2003S-16S Chip
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Return format
Operation code
High byte of file number
Low byte of file number
0XC9
XX
XX
3.4.4.8. Query the current external connection status(CA)
Start code
Length
Command
Check code
End code
7E
03
CA
CD
EF
Return format
Operation code
Return value
0XCA
XX
When insert or remove SD card or U disk, WT2000 will automatically return information to make prompt.
Low 4BIT of return value stands for the status of PC connection (BIT3), U disk (BIT2), SD card (BIT1)
and SPI-FLASH (BIT0).
0 stands for existence; 1 stands for nonexistence.
For example:
0x01: without PC connection (BIT3=0), without U disk (BIT2=0), without SD card (BIT1=0), with
SPI-FLASH (BIT0=1).
0x07: without PC connection (BIT3=0), with U disk (BIT2=1), with SD card (BIT1=1), with SPI-FLASH
(BIT0=1).
3.4.4.9. Query the song name of the current play(CB)
Start code
Length
Command
Check code
End code
7E
03
CB
CE
EF
Return format
Operation code
Return value
0XCB
XX(8bytes)
The return data is in the form of ASCII code. If the song name is less than 8 bytes, those without 8 bytes
will be supplemented with 20H to return.