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S.Kamath
S.Kamath
Associate III
September 19, 2021
Question

STM32H753 + STPMS2L + DFSDM : PT100 example using STM32CubeMx

  • September 19, 2021
  • 1 reply
  • 2234 views

Hi,

We're using STM32H753 (2 nos.) and STPMS2L in new product development. I'm looking for PT100 thermometer DFSDM example code generation using STM32CubeMx. Any example code available on PT100 voltage & current sensing on 2-channels?

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1 reply

I
Imen.D
Technical Moderator
September 23, 2021

Hello @S.Kamath​ ,

You'll probably want to review the DFSDM example within STM32CubeH7 MCU package:

\STM32Cube_FW_H7_V1.9.0\Projects\STM32H743I-EVAL\Examples\DFSDM\DFSDM_AudioRecord

This example shows how to use the DFSDM HAL API to perform stereo audio recording, and it can be a starting point for you to learn about DFSDM and to develop your own application.

Then, you can modify this working application depending on your needs.

This STM32H7 online training provides a support for Digital FIlter for SD Modulators Interface (DFSDM).

You can also refer to this AN4990 Application note Getting started with sigma-delta digital interface on applicable STM32 microcontrollers

Hope this helps you!

When your question is answered, please close this topic by choosing Select as Best. This will help other users find that answer faster.

Imen

In order to give better visibility on the answered topics, please click on 'Best answer' on the reply which solved your issue or answered your question. Thanks
S.Kamath
S.KamathAuthor
Associate III
September 24, 2021
Thanks Imen for prompt response.
Couple of questions –
1. Is there any STM32CubeMx tutorials available on DFSDM?
2. Please find screenshot below for 2-wire PT100 thermometer measurements. Please let me know how to connect 4-wire PT100 thermometer?
[cid:image001.png@01D7B183.E065D080]
Best Regards,
Sadashiva Kamath
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