Event handling for Accelerometer

[kmassa5]

Hi!

I am using an ASXL375 accelerometer with a nRF52832, and I am trying to figure out a good way to read the sensor data asynchronously (allowing the other processes the board is carrying out to run in the meantime). I have seen this main.c file that only reads sensor data, but the problem is, I want the board to other things. Should I set up some kind of timer to read the sensor once in a given time interval? Any other suggestions for those who have implemented something like this in the past?

Thanks!

[awneil]

Do you need to read the data periodically? If so, a timer is the obvious choice.

Or do you just want to read the data as & when you need it?

Many accelerometers have the facility to signal to the "host" when they need attention - have you looked into that?

kmassa5 said:

ASXL375

You mean ADXL375 ?

www.analog.com/.../adxl375.html

[kmassa5]

Thanks for your help!

Yes, ADXL375, thank you for catching that. It sounds like a timer is probably going to be the simplest solution for my use case.

What do you mean by "need attention?" What kinds of events might trigger an accelerometer to signal the host?

[awneil]

kmassa5 said:

What kinds of events might trigger an accelerometer to signal the host

That would be detailed in the datasheet for the accelerometer in question.

The ADXL375 has 2 interrupt lines, and 7 possible interrupt sources