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When ADAU1452 Serial Input Port 1 config ASRC input,BCLK 、LRCLK error

SigmaDSP & SigmaStudio xinshuwei Jul 12, 2021 00:00 3 replies Original on forum ↗
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xinshuwei Question
Jul 12, 2021 00:00

I use ADAU1452 serial input port 1 ,config tmd8 asrc input,audio signal can output ,but i use Oscilloscope found BCLK and LRCLK waveform error.

LRCLK have pulse base on 48Khz ,BCLK have am modulation 。I see datasheet gpio is bidirectional 。How can i config Register let the waveform normal?Can you help me?

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DaveThib Reply
Jul 14, 2021 00:00

Hello xinshuwei,

In SigmaStudio you go to the Hardware tab

Then click on the Register Controls.

Then the serial port tab

Then you will see all the settings for each serial port to select if it is a master or slave.

Dave T

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xinshuwei Reply
Jul 15, 2021 00:00

Thank you reply

In my mcu booting code ,i also config the register of 0xF204,

it is equal to SigmaStudio setting!

the BCLK LRCLK pin don't have in/out config Register?

BR.

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xinshuwei Reply
Jul 21, 2021 00:00

Thank you Dave,i found the bug , sdata in1 and sdata out2 use the same BCLK and LRCLK, sdata out2 set master,so the clk waveform error.