Some users have had difficulty getting the S/PDIF output to match the ADC output on the PCM186x EVM.
I've attached a video on how to do this.
Once the PCM186x itself is configured, the PCM9211 needs to be updated with the a new SCK to LRCK rate.
The register in question on the PCM9211 is:
TXSCK[2:0]: DIT System Clock Control
By default it's 256. Which is why, when the device receives 24.576MHz as SCK, it assumes the data is 96kHz.
It needs to be changed to 512x so that it TX's 48kHz content.
w 80 61 20 # Here's the magic line to use in the I2C read.write tab.
Check out the video.
Cheers
Dafydd Roche
(Product Definition for PCM186x)
"Whiskey on the Mississippi" Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0
http://creativecommons.org/licenses/by/3.0/
