DA7218 output no sound

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杜玉东
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DA7218 output no sound

Hello,

We are using STM32F103R8T6 with DA7218.

STM32F103R8T6  output 8MHz to DA7212 MCLK.Sample rate for ADC and DAC is 48kHz .

1)MIC1_P and MIC1_P has signal output.

2)WCLK frequency is 48kHz.

3)BCLK frequency is 1.5MHz.

4)DATOUT output is changed when speak near to mic.

But when I jumper connect  DATOUT ande DATIN,there is no sound.I'm sure I have enabled MIXOUT_AM and  HP_AMP.I have attempt  many times,Can anyone help me?

 

Best regards!

 

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ED_Dialog
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Hello,

Hello,

Let me look into that for you.

Kind regards,
Elliott 

ED_Dialog
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Hello,

Hello,

I couldnt quite understand some of your post. What inputs and outputs are you using?

Kind regards,
ED

杜玉东
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Inputs is microphone,and

Inputs is microphone,and outputs is horn.The process is   MIC->ADC ->I2SADC ->I2SDAC -> SPK.

Best regards!

ED_Dialog
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Hello,

Hello,

I have attached some example scripts for your path.

Kind regards,

Elliott

 

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杜玉东
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Dear ED_Dialog ,

Dear ED_Dialog ,
I have find the problem,Two capacitors in HPCFP and HPCSP is in the wrong position.Thanks very much!

杜玉东
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I found the SPEC of MIC2

I found the SPEC of MIC2_Select is wrong,so the DA7218_configure.exe is.

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ED_Dialog
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Hello,

Hello,

Thank you for the update. 

I didnt quite understand when you said there was an error in the spec. What did you spot?

Kind regards,
ED