Hello, I am having issues with configuring the SAI in FRDM K64F to the following mode:
SAI_Rx is slave and gets FS and BCK from external audio ADC.
SAI_Rx sends BCK and FS to SAI_Tx
SAI_Tx is a master and sends BCK and FS to the external amplifier.
Both Tx and Rx are in I2S mode
SAI_MCLK - should this be configured as external input and get it from the ADC as well?
I have SDK 2.2 but I'm configuring registers manually to have better understanding.. but it is not working.
To get the above config, the datasheet instructs to set the Rx to A-sync mode and Tx to Sync mode. I configured the other registers to the best of my knowledge, but I cannot get the Tx BCK to be sourced from the SAI_Rx. The Tx BCK defaults to internal 24MHz clock.