Arduino wifi shield firmware

Hi All...

Does anyone know if its possible to write custom firmware for the Arduino wifi shields UC3 processor? Is the source available?

Does anyone know if its possible to write custom firmware for the Arduino wifi shields UC3 processor?

It comes with firmware. Therefore, it should be apparent that it is possible to develop firmware.

Is the source available?

No.

I guess what I should have asked is, can new firmware be installed in the wifi shield UC3 processor?

Is the source available?

Yes, it is: https://github.com/arduino/wifishield/tree/master/firmware/wifiHD/src