SmartMotion® MEMS Motion Sensors

I have an issue of reading MPU9250 Compass data.
Host CPU is DM368. The interface is SPI.
The device can work smoothly at the beginning. After a while, the compass data did not change anymore sometimes.
The register54(I2C Master Status) output is 0x1. That means slave 0 receives a nack(Using Slave0 to access Compass).

If happened, the issue could not be fixed by reset the MPU9250. It need to cut down the power of MPU9250 to fix it.
The issue happened on our several devices.

In the ICM-20649 datasheet (rev 1.0 12/13/2016) i see in Table 17 that ACCEL_FCHOICE of 0 gives a fixed output rate of 4500 Hz, yet in table 18 the first column shows ACCEL_FCHOICE of 0, with the ODR being selected via the sample rate divider. Could you clarify please.

Thanks,
Paul.

Hi,

We are using our own board for an industrial sensor but I can not figure out how to correctly calibrate it. Everything else works, we are using the SPI interface and the code is based on the "ICM20602_eMD_nucleo_1.7 / icm20602_lite" project.

When data is ready these functions are called:

apply_mouting_matrix(cfg_mounting_matrix, raw_acc, sRacc_data);

 apply_mouting_matrix(cfg_mounting_matrix, raw_gyro, sRgyro_data);

Followed by:
algorithms_process(); that contains the following:

Hello people,
Im trying to track the orientation of a Robot, whose orientation has to be tracked and displayed on custom developed PC app in 3D.
I used the Motion App v4.2 version and was able to obtain the Quaternion data from the DMP FIFO. Then i migrated to Motion Driver 6.12. But to my surprise i was able to observe a drift in Qz value over a long period of time. Is this expected in the latest 6.12 Motion Driver? or am i missing to perform any calibration step? Can someone please help me.

Hello,

I'm using the ICM-20948 on my board via SPI and the eMD v1.0 for nucleao board (that I use on a pic32mz).

I can get both 6 and 9 axis dmp data without problem.

Yet, it takes a lot of time after startup for the data to be relevant.

When i try to download motionlink software I get an error saying i don't have permission to developers corner and to send an email to requwst permission. I did that and have not heard back in almost a week. I am a registered user and have the dk-20789 evaluation board waiting to be used. How did ithers get access to download the software?

I download the DK-20602/20648/20789(non-DMP)/20948 eMD-SmartMotion 1.0.4, but it is a project for the TDK Dev Kit using the SAMG55J19A microcontroller. Inside the software project I saw one called EMD-AppICM20648 that includes eveything related to this dev board, there is also another project called EMD-Core-ICM20648 that includes everything related to the ICM-20648. My question is, can I use exactly the same the project EMD-Core in my development with the NRF52840? or should I develop everything starting from 0?

Thanks for supporting me.

Does anyone know where can I find the register's address of DMP? I am trying to develop low level drives for the ICM-20648 but in the datasheet I only see the hardware registers. The DMP I can't fin them and also I saw in the document "Programming Sequence for DMP Hardware Function" that there is a specific relase information that give the DMP register address. I attached a picture that shows that.

Hello,

We wish to use MPU6050 for our angle measurement device. There is a note "Not For New Designs" in digikey's website.

Is this product will be obsolete in the near future ?

What is the last production date for this product ?

Could you please give us some detailed information about this product ?

In addition, Is there a new replacement with this product which is totally pin compatible and software compatible ?

Best Regards

Hi,

Where can I find the MPU-9250 Self-Test applications note or the AN-
MPU-9250A-03, MPU-9250 Accelerometer, Gyroscope and Compass Self-Test Implementation document? Any information about performing the self-test would be helpful.

Thanks