8kHz sampling rate on BF533 EZ-Lite

Hi community,

I'm developing audio algorithm for speech enhancements. Unfortunately the
BF533 EZ-Lite is not supporting this sampling rate. So Analog told me to
use the "Audio Extender BFAUD-EZEXT". Actually there is only a BF537
driver for this extender, but this is not usable for the BF533. 

Has somebody a driver to setup a AD1938 codec on the extender board?

Cheers

Michael