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SAI interface in both direction simultaneously. (MQX 4.1 / K70)

Question asked by Poul-Erik Hansen on Jul 14, 2014
Latest reply on Jul 16, 2014 by EARL GOODRICH

I am using a K70F512 and uses the MQX RTOS version 4.1.

I need to use the SAI interface in both directions simultaneously, and I need to know the exact delay from D/A-converter to A/D-converter because I need to measure audio phase difference down to 1 degree at 10KHz.

Do you have a example of initialize both direction in one call ?

How can I make sure that I don't get one audio clock sample difference in the timing from time to time ?