SmartMotion® MEMS Motion Sensors

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13263
By nimishpandeyl3… , 11 May 2022

Can the ICM-20948 update its _H/_L data registers in the middle of a user read operation ie. returning the high byte of sample i and the low byte of sample i+1, or even completely scrambled data? I need to know as I'm trying to approximately synchronise several ICM-20948s to an external clock, and I can't use the FSYNC pin.

By tsivarajeconsy… , 4 May 2022

Hi,
We are interfacing ICM-42670-P to a host processor and tried reading "WHO AM I" register (75h).
The read data from the register is 0x61 where as in datasheet, it is given as 0x67.
Can you please check and let us know the reason difference in the read id value?
Thanks,
Sivaraj

By deanharkenuavi… , 2 May 2022

I am trying to run MotionLink 4.2.0 with my DK-42652 and it unable to use the response it is getting from the DK's Atmel processor firmware. It always requests that I re-flash the board. I have reflashed the board using MotionLink and I have reflashed it using Atmel's Microchip Studio. The board is behaving properly when using these flashing tools.

By 1216052941qqcom , 23 April 2022

I am using ICM-42688-P.I was asked to put 8 chips on 1 board, and I found every GYRO noise lower than 170Hz increase when other chips was inited.More chips, greater the noise.
GYRO_ODR is 2kHz,GYRO_UI_FILT_BW is 400Hz,GYRO_NF_DIS off,GYRO_AAF_DIS 170Hz.
I have no idea how to avoid noise increase.May somebody help me?
There are pictures which show the frequency characteristic of noise.

By jefflblackmagi… , 19 April 2022

Hello,
Do you guys have any figure of the latency for the processing of motion data(ICM-20948)?
i.e what's the latency like measured from when the motion actual happens and motion data are delivered to the host through the FIFO?
What's the components of the latency? DMP, Low Pass Filtering .... etc?
Thanks
Jeff

By chethanroombrcom , 8 April 2022

We are developing BLE air mouse remote to integrate with our product and we are using NRF52832 with ICM40627.In nordic smart remote3 firmware was used ICM20608, due NRND we are trying to replace with ICM40627.This aml library is different from ICM20608 library also .lib file is also not found to add with keil.
Please help us how to implement aml library with nordic smart remote3 firmware.

Best Regards,
Chethan kumar

By amazone , 7 April 2022

hi there~

The libInvnAlgoAGM.a library seems to be for cortex-m4.

I'm trying to use it on esp32. (Xtensa dual-core 32-bit LX6 microprocessor)

Is there a way to use the library in esp32?

By junjiechangecoevcom , 6 April 2022

At present, we are using ICM20602 to debug the SELF-TEST function. Refer to the official demo driver to realize self-test, but the threshold range inside is very large. We have a sensor damaged by ultrasonic waves. The three-axis acceleration outputs half of the range when it is stationary. , can still pass the self-test, can there be a more suitable threshold to judge whether the sensor is normal? At the same time, there are many delays in the self-check program, and the total time is about 1s, which is a bit too long. Can it be reduced to the ms level?

By vijiljoseoctan… , 6 April 2022

We have created icm-42670-p circuit with NRF52840, in SPI mode, We are not getting any data from the device.
Power supply fine -3.3V
SPI pins are working, verified with Oscilloscope. MISO pin is not responding
We are using TDK Library