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codec : add codec work flow

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2017-03-06 15:57:33 +00:00
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debug/codec/README.md
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# Codec driver example(es8323/es8316 on rockchip)
## Codec Block Diagram
codec硬件框图如下(ES8323)
![codec blcok diagram](./pngs/codec_block_diagram.png)
### 录音过程(ADC data)
模拟输入从LIN1/RIN1,经过MUX到ADC,通过ASDOUT发送给对端(CPU I2S控制器)
### 放音过程(DAC data)
数字信号从DSDIN进入(对端CPU I2S控制器),发送到DAC,DAC通过DACL/DACR连接到MixL/MixR,最后输出到LOUT1/ROUT1
## Codec驱动(es8323.c)
### 硬件连接

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