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Associate
Jul 15, 2025 10:11 AM UTC
Solved

LIS2HH12 via SPI connection XYZ axis stall at fixed value

Hello.

I am working with the STM32U083 and LIS2HH12TR communication via SPI. 

Did the SPI settings configuration in mode 3 and build a simple project in cube ide to identify and read the accelerometer data.

The project also does the conversion in mg of the acceleration for all axis. 

When I move the axis I was expecting the values to change but there is no change as in picture below: (Debug data via uart ). 

Does anyone come out with this kind of problem ? 

Could it be sensor (accelerometer) damage, a soldering problem, or something else?

Following the terminal log:

EngHwho_0-1752574142740.png

Please support.

Thankyou

This topic has been closed for replies.
TDK
TDKBest answer
Jul 15, 2025 5:12 PM UTC

Some options:

  • Look for code on the internet.
  • Find a colleague or someone else otherwise invested who can assist.
  • Pay someone to write it.
"If you feel a post has answered your question, please click ""Accept as Solution""."

5 replies

TDK
Jul 15, 2025 1:21 PM UTC

Unlikely that all readings for all axes are exactly the same. Perhaps a code bug. Doesn't feel like a hardware issue.

"If you feel a post has answered your question, please click ""Accept as Solution""."
Andrew Neil
Super User
Jul 15, 2025 1:27 PM UTC

@EngHwho wrote:

Could it be sensor (accelerometer) damage, a soldering problem, or something else?

Thankyou


As @TDK , I'd guess most likely a coding issue.

Have you tried logging just the raw data direct from the accelerometer?

Have you looked at the data on the bus with an analyser?

A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
EngHwhoAuthor
Associate
Jul 15, 2025 4:09 PM UTC

Hello. First, thank you for the quick reply. I am a hardware PCB layout Engineer and have very low knowledge and experience in building firmware. I have to do it now because at least I want to test that the SPI bus connections are ok and read just for testing purposes the X, Y, Z axis. 

So far, the WhoamI register, as you saw on the terminal log I can read. How can I get some very simple code to test the Axis of this accelerometer? Can you advise me on a link or something? 

I tried from gitHub but the code was written for another platform and even "by my code modification(I am not sure how good I was)", could not successfully accomplish the task. 

I will appreciate any support.

Thankyou 

Andrew Neil
Super User
Jul 15, 2025 4:48 PM UTC
A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.