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How to get the PDM data by DFSDM module at STM32L4xx

Question asked by ll.hgyxb on Feb 9, 2018
Latest reply on Feb 12, 2018 by ll.hgyxb

I use DFSDM(at STM32L471RE) to record voice.

the human's voice is record OK. but I can not record the heartbeat voice. it is about 500Hz.

So I want to read the PDM data and analyze at PC.

How to get the PDM data?

I try to read DFSDM_CHyDATINR register, but can not read right value.