Is there any Host Interface software design document for ESP32 ?

[ckinnera]

Hi all,

I am looking for a Host interface software design document or a reference code, where it describes how to configure the ESP32 from an external Host MCU via SDIO/SPI bus. Basically I wanted to use ESP32 as a slave network processor from STMF439.

Thanks in advance.

Best Regards,
Chiranjeevi