Data Sheet
Shenzhen Waytronic Electronics Co., Ltd. WT2003S-16S Chip
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It sends the maximum volume 31 level in this example. This command is available to adjust volume in
real time.
2.3.4.9. Specified play mode (AF)
Start code
Length
Command
Parameter
Check code
End code
7E
04
AF
00: Single play, no loop playback
(default)
B3
EF
01:Single loop play mode
B4
02:All audio loop play mode
B5
03:Random play mode
B6
Note: this command modifies the playing mode in the condition of no power down. After power down it
will restore the default mode. When using this command, just setting MCU once in the module
initialization can realize to execute according to the settings with power on each time.
2.3.4.10. Inter-cut play command (B1)
Start
code
Length
Command
Mark word
High order of
track
Low order of
track
Check
code
End
code
7E
06
B1
00
00
01
XX
EF
Note: When this command is received, the current playing audio will pause and the specified audio will
be played. After finishing playing, it will continue to play the pause audio (error within 1s is OK)
If the inter-cut play is not finished at the first time, the command will be invalid even sending the second
command. After finishing the first inter-cut play, waiting 50ms, then it can have the next inter-cut play.
Support inter-cut play between the same devices or different devices.
Mark Word: 00 stands for inter-cut specified index address in SPI-FLASH
2.3.4.11. Specified EQ mode(B2)
Start code
Length
Command
Parameters
Check code
End code
7E
04
B2
00: Normal
B6
EF
01: Pop
B7
02: Rock
B8
03: Jazz
B9
04: Classic
BA
05: Base
BB