LSM9Ds1 Self-test

[bhavesh]

Posted on January 12, 2016 at 13:15

How may i know about self-test, what is the procedure after enable self-test for each one, and what kind of data will there that i have to use for further analysis, and how.

#self-test

[Petr S]

Posted on October 29, 2016 at 20:21

Hello,

LSM9DS1 SelfTest is STMicroelectronics confidential information. For simple SelfTest you can use the following procedure:

1.

Read ACC XYZ outputs (ACC_NOST_DATA)

Read GYR XYZ outputs (GYR_NOST_DATA)

Read MAG XYZ outputs (MAG_NOST_DATA)

2.

Enable ACC ST (ST=SelfTest)

Read ACC XYZ outputs (ACC_ST_DATA)

Verify that: ACC_NOST_DATA - ACC_ST_DATA = POSITIVE value for each axis

Disable ACC ST

3.

Enable GYR ST

Read GYR XYZ outputs (GYR_ST_DATA)

Verify that: GYR_NOST_DATA - GYR_ST_DATA = POSITIVE value for each axis

Disable GYR ST

4.

Enable MAG ST

Read MAG XYZ outputs (MAG_ST_DATA)

Verify that: MAG_NOST_DATA - MAG_ST_DATA = NEGATIVE value for each axis

Best regards,

Petr

[David M.]

Posted on August 31, 2017 at 09:56

As

Zalesky.Arie

‌, I am also wondering if it is'NOST_DATA - ST_DATA' or 'ST_DATA - NOST_DATA'. I tested the procedure on a sensor that seems ok, and the results for 'MAG_NOST_DATA - MAG_ST_DATA' are positive for each axis (i.e. in contradiction to the mentioned formula if the sensor I tested is working).

Best,

David

[arie]

Posted on March 14, 2017 at 13:08

Hi

Shouldnt it be the ST_DATA FIRST , minus the NOST_DATA??

[Petr S]

Posted on September 05, 2017 at 11:59

Hello all,

for LSM9DS1 magnetometer selftest you better use

http://www.st.com/content/ccc/resource/technical/document/application_note/69/d7/05/fe/a9/3e/4b/ea/DM00136626.pdf/files/DM00136626.pdf/jcr:content/translations/en.DM00136626.pdf

 including the limits since 

LSM9DS1 contains LIS3MDL magnetometer.

Regards,

Petr