LIS331 return always zero when I read axis data

ludovicsocie · ‎2016-04-06

Posted on April 06, 2016 at 13:55

Hi everybody,

I use a LIS331 with I2C communication. I can read and write the configuration register (CTRL_REG1 for example) but when I want to read any data register, the read value is always zero.

CTRL_REG1 value is 07h, therefore the axis are enabled.

I have tried to read STATUS_REG and the value is zero.

Anyone has had this problem ?

Have I forgotten a step in configuration or something like that ?

Thanks in advance.

#lis331

davidworden9 · ‎2016-09-20

Posted on September 20, 2016 at 21:09

Did you ever find a solution to this?

I have a similar phenomenon with the AIS3624DQ. I am able to read the X-axis, but the Y and Z are always returning zero. When I read out the CTRL_REG1 register, I see that X, Y, and Z are all enabled, so they all should be giving me values.

Any insight? Thanks!

EDIT: Fixed it. Turned out that the bit-field I had within my CTRL_REG1 structure had the bits reversed, so the Y and Z bits weren't being set.