RE: nRF5340 Audio I2S slave loads bit and frame clock pins when no Bluetooth connection

Maria Gilje — Thu, 01 Aug 2024 08:14:10 GMT

Hello,

[quote user=""]I want to run the i2s port as a slave. [/quote]

For LE Audio projects the nRF5340 I2S is the master to account for different Bluetooth LE and I2S speeds. This is handled in the drift and presentation compensation modules in the Audio application.

Without the compensation modules, audio artifacts could occur if the speeds are different for Bluetooth LE and I2S. To avoid artifacts you need to compensate for the drift somehow. We have no current solution for this, but we are aware of the use-case.

From internal discussions it appears that you are in contact with a Nordic FAE already, so let me know if you need support here or if you are getting supported directly.

Best regards,

Maria