I'm trying to use the mcbsp module on the F28335 microntroller to communicate with the pcm 3010 via I2S. I am trying to use the mcbspb module, and I would like to use GPIO pins 12-15 to connect. I have my XCLKOUT set correctly, but I just can't seem to get my code just right. I have tried injecting a sine wave into the codec, and I just get noise on the other end. My code is based off of one of the TI source files provided. It's an example of interrupt driven mcbsp communication, and I changed the setup values to what I expected would work. Any tips would be appreciated.