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Associate II
March 27, 2024
Question

DFSDM in STM32F412CEUX

  • March 27, 2024
  • 4 replies
  • 1386 views

Dear ST

I am using an STM32f412CEUX(UFQFPN48) 

STM32f412CEUX's the PB1( DFSDM_DATAIN0) and PB2(DFSDM1_CKIN0) of STM32f412CEUX is connected digital Microphone 

I want to get audio signal through STM32f412CEUX's DFSDM Block 

But I can not find DFSDM1_CKOUT pin for Microphone clock at STM32f412CEUX

 

question 

1) Does STM32F412CEUX  not support DFSDM Block to obtain audio signal from digital microphone 

   because DFSDM1_CKOUT pin is not exit at STM32f412CEUX

 

 

This topic has been closed for replies.

4 replies

Peter BENSCH
ST Technical Moderator
March 27, 2024

I am extremely sorry to inform you that the STM32F412 in the package UFQFPN48 has no pin for DFSDM1_CKOUT, so DFSDM cannot be used for digital MEMS microphones. However, CKOUT is available for packages with 64, 100 or 144 pins.

Hope that answers your question?

Regards
/Peter

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gregstm
Senior II
March 27, 2024

I've deliberately stayed with the STM32L4 series because it has a pin for the DFSDM1_CKOUT with the 48 pin packages (STM32L451, STM32L452, STM32L462).

hongjoAuthor
Associate II
March 28, 2024

Dera gregstm 

I need   floting point calculation to make something 

i will change STM32F412's 64 package 

 

thanks for supporting 

 

thanks

BR 

Mr.shim 

Joe WILLIAMS
ST Employee
April 12, 2024

Hi Hongjo

 

This post has been escalated to the ST Online Support Team for additional assistance.  We'll contact you directly.

 

Kind Regards

Joe WILLIAMS

STMicro Support