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Driving a Sigma-Delta ADC with STM32H562RIT6

Farhad13651
Associate II

Hi

Please provide a sample code to interface a Sigma-Delta type ADC like the ADuM7701 with the STM32H562RIT6, which does not have a DFSDM unit, and guide me on optimizing the code so that the microcontroller is not solely occupied with processing the MDAT signal from the ADuM7701.

 
thank you
1 REPLY 1
AScha.3
Super User

Hi,

so on cpu without DFSDM  , could try using the SAI : PDM mode

AScha3_0-1760187066076.png

But:

AScha3_1-1760187099954.png

So look on git, sure you can find some pdm->decimation filter , then write your program.

+

>provide a sample code to interface a Sigma-Delta type ADC 

>and guide me on optimizing the code 

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Here you can find helping hands for your project:

 

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