MMA8452 Low-pass filter working principle

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MMA8452 Low-pass filter working principle

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Contributor II

Hey, 

I'd like to make an inclinometer with the MMA8452.

Since i only need the static acceleration, the LPF is a good option to have.

The only thing i need to do is enable it in the  HP_FILTER_CUTOFF  register?

I can't seem to find any info on this.

thanks

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TomasVaverka
NXP TechSupport
NXP TechSupport

Hi Michael,

 

No, the Pulse_LPF_EN bit in the 0x0F register only affects the data for the pulse detection function which is not relevant for your application.

 

HPF.JPG

 

Best regards,

Tomas

 

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TomasVaverka
NXP TechSupport
NXP TechSupport

Hi Michael,

 

No, the Pulse_LPF_EN bit in the 0x0F register only affects the data for the pulse detection function which is not relevant for your application.

 

HPF.JPG

 

Best regards,

Tomas