pow213:
Thank you for your help. Do you know if it's possible for me to get the AT32 chip with firmware already installed on it so I can solder it to my PCB without worrying about installing the firmware myself?
I doubt that enough people are building Arduino WiFi Shields from scratch to make pre-loading the firmware on an AT32 chip a practical business model. You should include an ICSP header for the AT32 in your design so you can load the firmware after you solder the board. You will probably need to learn how to build and install the AT32 firmware. Good luck with that.