LIS3DH Self-test output change far from the expected

[mehdi elmabrouk]

Posted on October 24, 2017 at 19:03

Hello, 

I'm trying to perform self-test feature of the lis3dh, by following the insctruction identified in the appliacation-note  AN3308. the Self-test output change Obtained is geater than the maximum value identified in the datasheet. (between 4000 Lsb and 5000 

Lsb, in datasheet this value should be between 17 Lsb and 300 Lsb

).

Any idea ?

Thanks in advance for your support STCommunity. 

[Miroslav BATEK · Accepted solution]

Posted on October 25, 2017 at 09:47

The output data are 10 bit left-justified expressed in two’s complement.

You have to divide the value by 2^6 = 64.

[mehdi elmabrouk]

Posted on October 25, 2017 at 12:45

Thank you Miroslav, it solve the problem