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ADAU1716 reset

SigmaDSP & SigmaStudio inventis Jan 7, 2011 00:00 5 replies Original on forum ↗
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inventis Question
Jan 7, 2011 00:00

Hello,

In order to synchronize the I2S data stream I need to reset de device.

Do you have any suggestion?

ADIApproved Reply
Jan 7, 2011 00:00

Can you please provide more detail about your system and what you are trying to accomplish?

As long as your ADAU1761 is running off the same master clock as the other devices on your I2S bus, there should be no need to reset the ADAU1761. It should simply sync with the other devices, based on the LRCLK and BCLK signals on the serial port.

inventis Reply
Jan 10, 2011 00:00

Dear Brett,

in my scenario I have 2 ADAU1761 and a microcontroller connected by I2S.

The first ADAU1761 is the master, the second ADAU1761 and the micro are SLAVE devices.

The microcontroller read a SDcard and stram the audio on the I2S.

I certain case I need to reset the micro and in order to syncronize the micro I2S I need to have a

correct I2S DATA line level.

ADIApproved Reply
Jan 10, 2011 00:00

How are you detecting that the I2S data stream is out of sync? Are you dropping or doubling samples?

ADIApproved Reply
Jan 11, 2011 00:00

It sounds like in your system that one of the ADAU1761s should be your clock master to supply clocks to the microcontroller. The ADAU1761's serial port clocks need to be synchronous with the master clock, or else you will get added/dropped samples. If another device, such as the microcontroller, is your clock master, then you will need a sample rate converter between the ADAU1761 and serial port clock source.

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