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Altera_Forum
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14 years ago

Using WM8731 Codec on DE2 board as an ADC

I'm using the WM8731 Codec on the DE2 board as an ADC by taking in audio from the Line In jack and sampling it at 48KHz. I've got a project setup to do this using code supplied by Altera/Terasic and...
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Altera_Forum
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13 years ago

Hi,

I'm trying to configure WM8731 Codec on DE2 board as an ADC too. But i have no idea how the whole thing works. I'd like to pump in music through WM8731 Codec, and pass the music signal to FPGA (I have designed a LPF and program in cyclone II), then obtain the filtered music signal through WM8731 Codec again. The purpose that using WM8731 Codec is just to demo the audio signal filtering process in real time. I'd like to disable the filtering function that provided by WM8731 Codec. Other than configuring WM8731 Codec, i will need another file for configuring i2c so that WM8731 Codec can communicate with FPGA (cyclone II) ? Am i rite?

Please guide me through this. If possible, i'd like to have a copy of codes as reference. I'm just a beginner. Your help will be appreciated :)