Using WM8731 Codec on DE2 board as an ADC

Hi HJ.C,

I think if you are beginner it's very hard to do this stuff all on your own.

May be this helps:

http://users.ece.gatech.edu/~hamblen/de2/

Go to

de2 software resources

and click on

altera de2 demos (http://users.ece.gatech.edu/%7ehamblen/de2/de2_demonstrations)

than you will see some example projects for the DE2 board.

Try

de2_i2sound/ (http://users.ece.gatech.edu/%7ehamblen/de2/de2_demonstrations/de2_i2sound/)

if it works with audio-in and audio-out, try to add your LPF stuff and check again.

You can try to change the project regarding the I²C stuff, too, so you will be able to configure the WM8731 as you like.

Hope it helps!