SmartMotion® MEMS Motion Sensors

Is it possible to retain magnetometer offsets stored in the DMP, to avoid having to rotate the device before each use?

Hi,

I am trying to set up BLE mode of smartbug md-42688-P using the smartbug app as per userguide. However, says no devices found. The laptop an discover other bluetooth devices. The USB works fine. Any suggestion will be appreciated.

I am developing ICM42605.

If I compile the original source code using Atmel Studio, it compiles normally without errors. There is no error in libInvnAlgoAGM.a.

However, the MCU is nRF52840 and when compiling using Keil uvision, the following error appears in the library libInvnAlgoAGM.a.

The part number is same for all ICs. Only the Lot number and Date of manufacturing are different, as per the below attached image.

Case - 1: When we are mounting the ICM20948, came along with the DK20948 dev kit from TDK InvenSense, is working fine with our custom board and Devkit, when we flash the "eMD-SmartMotion-ICM20948-1.1.0-MP" software package provided by TDK InvenSense. In this case, all functionality in the "eMD-SmartMotion-ICM20948-1.1.0-MP" software package works flawlessly.

I am using the INVENSENSE motion driver v6.12 for the MPU9250 with an STM32F411 microcontroller. I changed some files in it so the driver can communicate with the MPU9250.

Hello,
Just initializing ICM20948 using LibIDD add more than 60kB on flash memory usage. I think it is to mush for an embedded application!
Anybody has found a way to optimise / reduce memory usage?
Thank you.

Hi, I have a question regarding ICM-20948 FIFO.
When the FIFO (no DMP) is set to continuous mode and filled with data (4096 bytes) at sample rate of 50Hz (20msec), the ovf interrupt occurs every 6.8sec
When this happens, with I2C Frequency of 400kHz it takes 20usec to read one byte (2.5usec/bit * 8 bits) or 82msec to read the entire FIFO (20usec/byte * 4096 bytes). Correct?
This means that during FIFO read time(82msec) new incoming samples will come to the FIFO( 20msec sample rate) to be written.

Hello,
I need help to know which file i should program ? HostSerif or SerfHal Or i keep both files ?
it seems hostserif is deprecated, but DeviceIcm20948 include both of serif files!
Thank you.

On the ICM20648 (and/or newer 6-axis solutions), is it possible to run the DMP at whichever setting for ODR whilst simultaneously sampling the raw sensor data at a significantly faster rate? The application is navigation using the DMP with the intent of monitoring for sensor saturation across all elements (i.e., simple if value exceeds threshold). It operates in an environment unsuitable for magnetic navigation due to interference but we need to monitor for shocks that cause navigation errors using a 6-axis solution.

Dear sir/madam,
I have an MPU6000 sensor which I use to measure acceleration in three axes. In the datasheet and the register map files of the sensor, two sensitivity scale factors are defined for gyroscope and accelerometer separately.
When I change the sensitivity scale factor of the gyroscope which is FS_SEL, I see the scale and the maximum measured ratio of the gyroscope change.