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Altera_Forum
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15 years ago

Line out volume adjustment in Wolfson WM8731 audio codec

Hello all, I have a design which successfully programs the WM8731 codec on my DE2-70 board via the 2-wire I2C interface. I am using pure HDL to configure the codec, no NIOS or software or anyt...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Hello,

I had a similar problem with the DE1 board.

In the end I traced the 'lineout' skt back to the chip and it turned out it was

connected to LHPOUT and RHPOUT (pins 13 and 14).

(viz the headphone outputs).

The lineout's were actually unconnected !

I re-programmed for headphone outputs and attached a headphone to the skt

and it worked correctly.

John (jt2)

Manchester