SmartMotion® MEMS Motion Sensors

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By myworktask , 3 January 2016

Hello

I need to integrate the mpu-9250 to a board running linux 3.10 kernel

1. where can I download the Linux driver
2. is there an Android HAL support (I am currently working with Lolipop 5.1.1 but any reference will suffice)

thank you

By subt , 1 January 2016

Hi,

I use SPI to talk to the MPU9250. I succeeded in uploading the DMP firmware image from the Embedded Motion Driver 6.12 package and I get quaternion and raw accelerometer data output and I also configured the secondary I2C master to read magnetometer data from the internal AK8963 to the EXT_SENS_DATA_XX registers.
I also use the DMP interrupt to trigger the FIFO readout and now I have a few questions:

By fornari , 31 December 2015

Hi,

I`m doing an improvment on my project which uses a MPU-6050. I have to detect the vibration in a object that I know that oscilates between 800 Hz and 1800 Hz. My problem is the accelerometer Bandwidth of MPU-6050 which is about 1000 Hz, so I was looking for an model of accelerometer that could offer me a higher Bandwidth, at least 2000 Hz. I spend some time searching on google but I was not able to find nothing of the kind. Someone knows something about IMU accelerometers that can reach this frequencies?

Thanks for your time, have a nice day!

By laruatta , 28 December 2015

I've got the MPU9250 linked with an MSP430 via SPI, and I'm using my own driver because I ended up only needing the accelerometer, and no DMP. Accel FSR is set for +/-2g's, DLPF enabled and set at 5Hz, and a 4Hz sample rate.

The Y and Z axes look great, nice and stable, but the X axis is simply all over the place between -FSR and +FSR. I tried a second test board to make sure we didn't physically stress the primary board out of whack, and the second board exhibits identical symptoms.

By wilkins , 23 December 2015

I'm trying to understand how to use registers 65 and 66 (temperature measurement) with the MPU-9250. The register map shows that there exist a high and low byte. Shifting the high byte up and oring with the low byte seems to provide a reasonable value for TEMP_OUT. In one real reading this yields 2311.

By gammarui , 18 December 2015

Hi, I am evaluating the MPU6500 with MotionStudio 6.1 for integration in a medical device. As the requirements on risk management are quite high I would need to know a bit more about safety and warning functions. Does anyone have any knowledge/experience in:

1. Is there any warning flag for peak acceleration/angular speed reached? I guess that when the peak acceleration/angular speed have been reached the quaternion reported by the DMP will be invalid. Is there any way to detect if peak acceleration/angular speed have been reached except polling?

By cbanta , 18 December 2015

Hello All,
I'm trying to make a low power frequency sensor, for around 100-400hz I was originally going to use a microphone and calculate from there, but then I found that an accelerometer may be a better option. I ordered an mpu-6050, and I'm having a bit of difficulty finding good documentation on this either way now and was hoping someone here could help steer me in the right direction, and if you had some good resources that I can research with as well it'd be much appreciated.
Thanks,
CB

By mharradine , 16 December 2015

Could someone please point me in the direction for download of the Universal Datalogger software in order to evaluate an EV_ARM_XXAXA_D + MPU-6500EVB combination. It does not appear anywhere in the 'Downloads' section of the website.

Also do I need to install special USB drivers for the EV_ARM_XXAXA_D or are they included as part of the Datalogger install?

thanks in advance