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LSM9DS1 DRDY_M and DEN_A/G pins

Damon Kelly
Associate II

How do the LSM9DS1 DRDY_M and DEN_A/G pins function?

6 REPLIES 6
Damon Kelly
Associate II

I see this has been answered before.

However, how should DEN_A/G be connected? Gnd, Vdd, floating?

Eleon BORLINI
ST Employee

Hi Damon, you can connect DEN_A/G pin to your MCU without initializing it, if you don't need to use it.

Damon Kelly
Associate II

If I'm not using it, should I connect it to GND or Vdd?

Eleon BORLINI
ST Employee

Hi Damon, yes, connecting to GND should be ok

Damon Kelly
Associate II

Thank you, Eleon

NHend.7
Associate II

Hi from my understanding that DEN is a I/O pin that creates a trigger to Automatically send data to the MCU. This can be used instead of a standard i2c or spi call?

This pin seems very dangerous as there is very very little info on how to use it correctly.

So grounding this pin is for the best until the documentation is updated.

BR