SmartMotion® MEMS Motion Sensors

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13263
By alep52 , 15 May 2015

Hi everyone,

In my application i have to change the world coordinates frame several times, which i can achieve calculating a new accelerometer bias. The problem relies in the internal registers of DMP that keeps the last quaternion and this way the filter takes some time to converge. I would like to know if there is any way to load a new quaternion to DMP registers or reset the quaternion values to {1,0,0,0}.

Any clue?

By kolegaz , 13 May 2015

Dear support,

I need help to setup the Contextual Awareness developer kit.
So far, I have been able to build the eMD6.0 'mllite_test' project, flash it through the MSP-FET430UIF probe, and debug it step by step.

I can also see the 'BlueRadios' bluetooth device, and connect to it.
Windows creates a serial device, and assigns it to my COM port 12.

Problems start when I try to run the python demo application : running the DOS command

By phabibjr , 12 May 2015

Hello,

I am trying to read magnetometer data from MPU9250 using dsPIC33F. The code was running well in MPU9150 platform and when I tried porting (with modification on the Bypass Enable bit) to MPU9250 it does not work.

I am able to read device ID and it shows 0x48. Then I did tried to read the calibration data by reading from ASAX,ASAY,ASAZ. This executes but all the data are the same. Then I tried to read the magneto registers by,

1. setting INT_PIN_CFG = 0x02 (this is as part of the initialisation of IMU)

By hatemtaha , 9 May 2015

Hello, everyone. I hope this isn't a FAQ. I tried doing a search for "accelerometer bias" but it wouldn't show me any results because both words are too common. :?
My one and only MPU-6050 reads 0.89g on its z axis when it's one way up and -1.12g the other way up (direct register reads, ±2g range). That's some serious bias! Is this typical or do I just have a defective MPU?

By edeng , 26 February 2015

Hi,

I've got a problem with the absolute orientation of the quaternions. I am using a MPU9250 with the Embedded Motion Apps 6.1 (9 axis fusion) on a msp430f5528.

When I turn the hardware off and on again the orientation in the room is different (same hardware, fixed with tape on the table).

Has anyone observed the same behavior? Any suggestions how to solve the problem?

Thanks in advance!

By kjones , 25 February 2015

Has been any one able to have simple_app working with CCS6 ?
I got the following errors:
error #20: identifier "UPCS0" is undefined (this is well known)

warning #10204-D: could not resolve index library "libmath.a" to a compatible library
>> Compilation failure
error #10269: output file "motion_driver-5.1.2.out" exceeds code size limit
error #10010: errors encountered during linking; "motion_driver-5.1.2.out" not built