实现51单片机对PGA2310控制的源代码，可以通过4位数码管显示两个声道当前音量，可以通过旋转式编码器来控制音量加减，其中因为PGA2310和旋转编码器在protuse里面都没有仿真原件，所以2310只能使用示波器来观察时序对比PGA2310datasheet给出的时序观看仿真结果，而编码器则使用两只button代替，实际上的编码器也就是两只开关交替导通来产生“码”的（此部分可自行改为直接由按键控制）。-51 single-chip implementation of PGA2310 control source code, can be four two-channel digital display current volume, you can rotary encoder to control the volume addition and subtraction, which because PGA2310 and rotary encoders which are not in protuse original simulation , so the 2310 can only use the oscilloscope to observe the timing sequence comparison PGA2310datasheet viewing simulation results are given, and the encoder use button instead of two, in fact, the encoder is two switches alternately turn to have a " code"　( This section can be changed directly by the key control on their own).