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Altera_Forum
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15 years ago

help for audio codec using VHDL

i am a begineer at using altera DE2 board and VHDL. i have to complete my project with in 10 days time but dont have any idea of where to start and how.. help ......... i need to build a duplex au...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

as someone pointed out, the code is very clear and I think really useful.

I've managed to use it with an i2c controller ported from altera's one, and the waveform generation just works fine. if i try loopback i have this result (with signal on line in):

sw0+sw9 up: hex0 stuck on "5", static. every time i switch sw0 down and then up, static (volume varying between trials).

basically, board now adds static to signal input, if present, or just plays static if no signal input is present. any hints? am I missing something?

thank you in advance,

best regards

C