topic Re: Sampling rate for FXOS8700 in linux using evdev events in Sensors https://community.nxp.com/t5/Sensors/Sampling-rate-for-FXOS8700-in-linux-using-evdev-events/m-p/881298#M5583 <HTML><HEAD></HEAD><BODY><P>Thank you! I’ll try that…</P></BODY></HTML> Wed, 13 Mar 2019 20:59:46 GMT cheperuiz24 2019-03-13T20:59:46Z Sampling rate for FXOS8700 in linux using evdev events https://community.nxp.com/t5/Sensors/Sampling-rate-for-FXOS8700-in-linux-using-evdev-events/m-p/881296#M5581 <HTML><HEAD></HEAD><BODY><P>When I access the inputs generated by the driver for the accelerometer I can only get less than 10 samples per second. Is there a way to sample faster than that through this method or do I need to access the device directly using the i2c bus? The platform is i.MX6QP.</P><P></P><P>Thanks!</P></BODY></HTML> Tue, 03 Feb 2026 22:00:11 GMT https://community.nxp.com/t5/Sensors/Sampling-rate-for-FXOS8700-in-linux-using-evdev-events/m-p/881296#M5581 cheperuiz24 2026-02-03T22:00:11Z Re: Sampling rate for FXOS8700 in linux using evdev events https://community.nxp.com/t5/Sensors/Sampling-rate-for-FXOS8700-in-linux-using-evdev-events/m-p/881297#M5582 <HTML><HEAD></HEAD><BODY><P>Hello Jose,</P><P></P><P>You can access the device through I2C in order to change the Output Data Rate “ODR” (register CTRL_REG1) from 1.563 Hz to 800 Hz for each sensor or up to 400 Hz when in hybrid mode (both sensors active). Another way to improve the resolution of the data is through oversampling ”OSR” (register CTRL_REG2); the oversampling settings allow the end user to optimize the resolution versus power trade-off in a given application. More details can be found in the <A href="https://www.nxp.com/docs/en/data-sheet/FXOS8700CQ.pdf">datasheet</A>.</P><P></P><P>You may find useful the following application notes as well:</P><P></P><P><A href="https://www.nxp.com/docs/en/application-note/AN4076.pdf">https://www.nxp.com/docs/en/application-note/AN4076.pdf</A></P><P><A href="https://www.nxp.com/docs/en/application-note/AN4075.pdf">https://www.nxp.com/docs/en/application-note/AN4075.pdf</A></P><P></P><P>Have a great day,</P><P>Paulina</P></BODY></HTML> Wed, 13 Mar 2019 20:31:39 GMT https://community.nxp.com/t5/Sensors/Sampling-rate-for-FXOS8700-in-linux-using-evdev-events/m-p/881297#M5582 lisettelozano 2019-03-13T20:31:39Z Re: Sampling rate for FXOS8700 in linux using evdev events https://community.nxp.com/t5/Sensors/Sampling-rate-for-FXOS8700-in-linux-using-evdev-events/m-p/881298#M5583 <HTML><HEAD></HEAD><BODY><P>Thank you! I’ll try that…</P></BODY></HTML> Wed, 13 Mar 2019 20:59:46 GMT https://community.nxp.com/t5/Sensors/Sampling-rate-for-FXOS8700-in-linux-using-evdev-events/m-p/881298#M5583 cheperuiz24 2019-03-13T20:59:46Z