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Associate III
June 12, 2025
Question

STEVAL-STWINKT1 with ST MEMS Studio is not working

  • June 12, 2025
  • 6 replies
  • 717 views

I am having STEVAL-STWINKT1 to be interfaced on USB channel for ST MEMS PC application.

I have flashed DATALOG2_Release.bin in eval kit.

I can get the ST MEMS PC Application showing the vibration sensor analysis graph. See attached.

mdalal_0-1749708646028.png

However, the issue I am facing is when the ST Eval board is moved from the desk to up in the air (only 1 cm). The firmware is hung, and the USB connection is lost. Can you suggest what is wrong with the firwmare?


Also, if possible, I would like to connect the kit BLE channel with the ST MEMS application but it does not connect even then on MEMS applicaiton. Can you suggest if I need to use a different firmware? Or something else?

6 replies

ST Employee
June 12, 2025
Hello,

I’m unable to replicate the issue. I can stream the data without any interruptions using the same setup as you. Based on your symptoms, I would suggest checking your USB cable and the USB connector on the board. There might be a weak connection causing disconnections when the board is moved.

Please note the following:

  • MEMS Studio does not support Bluetooth connections with the Datalog2 firmware.
  • The Datalog2 firmware can be used with the ST BLE Sensor mobile application.
  • Alternatively, you can create firmware in AlgoBuilder within MEMS Studio by selecting the target STWIN BLE. This firmware will communicate with MEMS Studio over BLE, allowing you to stream sensor data to the application.
mdalalAuthor
Associate III
June 13, 2025

THanks for the reply.

I tried with 5 different USB cables and all have same issue. The Green LED which gets turn ON and Off is also stuck which geenrally suggests something is wrong with the firwmarew itself.

Can you provide me a link to the firwmare you are using? Or you can attach the firmware here itself.

Mehul

ST Employee
June 16, 2025

I see.

I'm using firmware from the FP-SNS-DATALOG2 package in version 3.0.0.
https://www.st.com/en/embedded-software/fp-sns-datalog2.html

I suppose you are using the same.

Just to be sure do you have STEVAL-STWINKT1B or STEVAL-STWINKT1?

mdalalAuthor
Associate III
June 17, 2025
Billy OWEN
ST Employee
June 17, 2025

Hi @mdalal 

 

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

 

Regards,

Billy

mdalalAuthor
Associate III
June 18, 2025

Sounds good. Thanks.

mdalalAuthor
Associate III
June 23, 2025

Hi,

Any further updates on this? I see in general that once the ticket is transferred to "ST Online Support Team", the replies even become delayed and slowed down.

Mehul