Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

how to generate tone in DE1

hi, i come across this project in this site http://www.fpga4fun.com/musicbox.html, which creates a music box. I wan to implement them in DE1 board but i dun know how to use the audio parameters. ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

I believe the line out is connected to the wolfson audio codec chip. You would have to communicate with that chip to initialize it, and then generate the tones. This is a little more complicated though - if you're interested take a look at the DE1 synthesizer demo for tone generated music, or at the DE1 audio demo for playing PCM.

Using a mif file is not required, it's just to have some kind of ROM behavior. You can use even a big case switch to specify the tones to play, like in the MusicBox tutorial.