Phone on Cyclone II

Hello everyone,

I'm working on a project for a university exam and I've stepped into some difficulties.

The project asks, among other things, to build a system over an Altera Cyclone II FPGA (EP2C20F484C7) that:

- receives a microphone input (using WolfsonWM8731 audio codec)

- sends the data over to another FPGA via serial port (MAX232) establishing a full duplex communication

- sends the received data out on the speakers.

I'm really new with VHDL and FPGA programming and manuals and CD examples are not very helpful due to their lack of comments.

If any of you has some advice/example code on how to implement the audio I/O and data transmission I'd be very thankful. I googled a lot and found a thread named "Integrate the Opencores's I2C ip into SOPC" in which someone gave the code to use the opencore's I2C interface but I cannot manage to find it.

Thanks for your help.

Bye!