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Altera_Forum's avatar
Altera_Forum
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16 years ago

DE1 audio codec

I have a problem with the sound in DE1 board: the volume is very low, I'm using audio core, audio/video inic,Development Board External Interface core, and Audio and Video Config with NIOS II processor, Help me please....

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    Have you tried with increasing the volume with writing volume register of Audio codec ?

    Regards,

    Hardik Sheth
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    Ok thanks for you answer, but I can't see a register for volume control, the audio core register map contains only control, fifospace, leftdata and rigthdata registers, where I can find the register for volume control ?

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    You can refer audio codec data sheet for volume control register for line out and head phone output.

    You have to send these register value using I2C interface.

    Regards,

    Hardik