[sdiy] STM32 vs WM8731

[Richie Burnett]

Eric wrote:

> If you have a scope with high impedance probes, look at the SCL input 
> pin - if you see MCLK there at a low level, it's a good bet your WM8731 
> can't hear the I2C bus due to the crosstalk. Reroute the signals or put a 
> simple RC lowpass filter on the MCLK to mitigate that.

On MCLK?  Or lowpass filter the I2C SCL input to remove the MCLK clock 
feedthrough?

-Richie,