SmartMotion® MEMS Motion Sensors

Hi,

I think problem is with DMP. From registers i can get all measurements data, but with DMP i cant get any data from fifo it is empty all the time. This software works with MPU9250 without any problems but with MPU6500 i cant get data from fifo.

Dear Community

Does anyone have a compatible liblibmplmpu.a library file for the raspberry pi? The ones included in the embedded motion driver 6 are all compiled with the -mthumb option which is not supported on the rpi (gcc armhf toolchain). Since it is such a popular platform...

Best regards

Frank

Two questions about ACCEL_CFG2 register in MPU-6500:
1) In MotionDriver 6.12, value BIT_FIFO_SIZE_1024 is not documented in MPU-6500 Register Map v2.1 (field is labelled reserved). What is this undocumented field, or is there a newer version of register map?
2) MotionDriver 6.12 sets ACCEL_FCHOICE_B to disable the accelerometer lowpass filter regardless of calls to mpu_set_lpf(). Is this Invensense' recommended usage? Should I avoid using the accel LPF?

Thanks
Martin

Hi. I hope this isn't a duplicate. I'm probably missing something obvious but I'm having a very hard time handling the FIFO mechanism on the MPU-9250.

I am communicating with the MPU-9250 with a Raspberry Pi Zero's I2C interface, using pure C++ code (no Python is involved). The I2C bus is presently running at 100 kHz.

I can successfully read and write all of the configuration registers, and I can successfully read the individual sensor output registers. A simple program which reads those individual registers shows output that tracks with the orientation of the device.

where can i find complete register map for mpu9250 or mpu6050?
where are DMP configuration registers and what is the role of each bit?

Hello everyone,
does anybody know, where to get some reasonable documentation for the above mentioned sensor. I have got some samples but without datasheet they are practically useless. It seems there is only the simplistic product brief document available.
Or is the product so "hot" that there is no DS yet?

Thanks

I'm having difficulty calculating power consumption of the MPU-9250 for our specific situation, which is 9-axis, with DMP, at roughly 100 Hz update rate for Accel and Gyro, 8 Hz for Mag. The datasheet doesn't provide curves or formulas to enable the calculation of supply current for various update rates for each sensor. Also, almost all of the active currents which are provided specify "no DMP", but I can't find the supply current anywhere for the DMP itself. Where or how might I find this information?

Thanks,
Scott

Hello @all,

I am trying to find the application notes for the MPU-9250. Where can I find the notes or can someone post a link for the application notes?

Thanks, best regards Alex

Hi Friends,
i'm working on MPU6050. i interfaced it with NXP LPC1343 ARM. I can able to read the WHO AM I register which is generating 0x68. But all the accelerometer and gyroscope register values are giving zero.
How can i get the right values ?

Thanks in advance...