vs1003
请教高手vs1003如何调音量呢？
[解决办法]
8.6.11 SCI_VOL (RW)
SCI_VOL is a volume control for the player hardware. For each channel, a value in the range of
0..254 may be de?ned to set its attenuation from the maximum volume level (in 0.5 dB steps).
The left channel value is then multiplied by 256 and the values are added. Thus, maximum
volume is 0 and total silence is 0xFEFE.
Example: for a volume of -2.0 dB for the left channel and -3.5 dB for the right channel: (4*256)
+ 7 = 0x407. Note, that at startup volume is set to full volume. Resetting the software does not
reset the volume setting.
Note: Setting SCI_VOL to 0xFFFF will activate analog powerdown mode
这个寄存器...
LZ还需要仔细看数据手册
http://www.vlsi.fi/datasheets/vs1003.pdf
