Adding ADC (Audio-Input) to Odroid N2

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Activation of I2S - Input on Odroid-N2

• Hardkernel-Forum: I2S output on N2
• Odroid-Wiki: Application-Note: Sound
• Odroid-Wiki: 7pin connector J7
• Odroid-Forum: Audio ADC to I2S Data In, Odroid N2, is it possible?

Pins used for I2S-Input

Connector J7
Pin 4 I2S MCLK ---------------> ADC
Pin 5 I2S LRCLK --------------> ADC
Pin 6 I2S SCLK ----------------> ADC
Pin 7 I2S DATA OUTPUT ----> not used

Connector J2
GPIOA 4 I2S_DIN <------------ ADC (Pin 26)

• Odroid-Wiki: J2 expansion connector pinout
• Odroid-Wiki: Source-Code to set register-Values

set the Mux register, for GPIOA.4 - 464, to ALT2

• Audiophonics.fr: Stereo ADC Board WM8782 I2S 24bit 192kHz

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