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Altera_Forum's avatar
Altera_Forum
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17 years ago

Question about sample rate of audio codec WM8731 on DE2

hi, everyone. I have read code from the DE2 I2Sound Demonstration and compared with WM7831 datasheet. Everything is quite clear, except the setting of sample rate. According to the datasheet, wh...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

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Yes, but you can't just divide a clock by 3 without violating duty cycle restrictions. You would need to use a PLL.

When using a PLL, set the wanted frequency in the PLL MegaWizard. The MegaWizard will take care of selecting the best multiplication/division.

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thank you very much. I will use PLL as you suggest.

>:D<