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ADAU 1761 Problem

SigmaDSP & SigmaStudio Bambinz Aug 3, 2015 00:00 3 replies Original on forum ↗
Thread Summary

Thread Summary

The user experienced an issue with the ADAU1761 codec and BF707 DSP where the circular buffer emptied after 28 seconds, causing the codec to unload the buffer multiple times. The problem was resolved, but the exact cause was not specified. The user also asked if loading only 1 sample (8-bit) with adi_adau1761_SubmitTxBuffer was a potential issue.
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Bambinz Question
Aug 3, 2015 00:00

Hi all,

I would like to use the ADAU1761 with the DSP BF707. I receive data from the UART from a WifiModule. I write the data in a circular buffer and this data is reproduced with ADAU1761. The program work very well, but after 28second the buffer is empty. I checked the sampling frequency, the buffer code, ecc but it is correct. When the buffer is empty I fill it with 0, but the codec unload the buffer in few time for once and again, again ,again, ... this for 5 - 10 time. After this moment the codec work correctly.

I don't understand why the codec not work at the sampling frequency in this case, when my buffer is empty I send 0 to the codec.

Thank you very much and excuse my English.

Audio Signal Processors

SigmaDSP Audio Processors

adau1761

Bambinz Reply
Aug 3, 2015 00:00

I load only 1 sample ( 8 bit) whit adi_adau1761_SubmitTxBuffer, it is one problem?

Bambinz Reply
Aug 3, 2015 00:00

I resolved the problem.

EZAdministrator Reply
Aug 2, 2018 00:00

This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

Thank you,
EZ Admin