How to configure LIS2DE12 to support ODR=5.3kHz ?

[Hae Ryon Jung]

Posted on December 13, 2016 at 01:06

Hi All,

I am developing device to analyze vibration with LIS2DE12 acceclerometer.

I have encountered problem that sensor did not work with ORD=5.3kHz, it worked fine for all other ODRs.

How to configure sensor to work ODR=5.3kHz ?

My configuration is as follows

CTRL_REG1 : 0x97

CREL_REG3 : 0x10

CTRL_REG4 : 0x10

All other registers are default.

My expected processing steps are as follows

1. INT1 pin is enabled when sensor data is ready

2. MCU got INT1 signal, send event to handle interrupt

3. interrupt handler read sensor data.

As I have measured, the period of INT1 signal is around 1.3kHz

please take a look at my configuration and let me know anything to check.

Regards,

Hae Ryong

[Hae Ryon Jung]

Posted on December 21, 2016 at 09:16

Hi All, 

I've got following answer from local FAE.

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To work with ODR=5.3kHz, LPen bit of CTRL_REG1 should be set. there is error at data sheet, it will be fixed at next release.

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Thanks for your concern.

[Miroslav BATEK]

Posted on February 08, 2017 at 16:27

New version of the datasheet for

http://www.st.com/resource/en/datasheet/lis2de12.pdf

was released.

Section 8.6 CTRL_REG1 (20h) was modified to properly describe also configuration for ODR=5.3kHz.