Debugging Hardfault

[julienh]

Hi,

I'm working on an application with an accelerometer without SoftDevice (for the moment). The accelerometer communicate in I2C. It send an interruption when a new sample is available (50Hz).

Some simple calculation are done on these values.

During debugging, I have some random hardfault. What can I do to understand the root cause of this hardfault?

I'm using Segger embedded studio. You can see below a screen shot of the call stack when that happened.

[Jørgen Holmefjord]

Are you checking error codes from all function calls? How often do you see the hardfault? Could you post code snippets from the accel_read() and register_get() functions?