MotionFX blocked in MFX_MAGCALUNKNOWN state

[Gabriel Gabor]

Posted on February 23, 2018 at 16:00

Hi,

I'm trying to use the MotionFX library with the LSM9DS1. I can initialise the library and I start to send updates using the MotionFX_MagCal_run method then I get the params with MotionFX_MagCal_getParams but the cal_quality is always 0, I tried multiple times. Also, I double checked that I set the sample time and timestamp correctly.

Not sure what I'm missing, is there any way to debug the behaviour of the library?

Regards,

Gabriel

[Miroslav BATEK]

Posted on February 23, 2018 at 16:16

Please check this thread firts

https://community.st.com/0D50X00009XkWhLSAV

If you are able to plot X, Y, Z during sensor rotation it would be helpful.

[Gabriel Gabor]

Posted on February 26, 2018 at 14:57

Thanks again for the quick response!

Here's the magnetometer data that I send using the MotionMC_Update function:

https://gist.github.com/gpgabriel/c0f55be9f32c0d548629d0525e79450e

 

The data above is calculated as follows:

calcMag(mx) * 1000 * FROM_MGAUSS_TO_UT50

where calcMag returns Gs.

I'm still blocked in the MFX_MAGCALUNKNOWN state. I'll try to add a video with an actual plot asap.

[kkia]

Hi to all

I exactly have the same problem.

I use MPU9250 and I update the library in the main function, (I do not use any RTOS), and also my code is blocked in MMC_CALQSTATUSUNKNOWN state. I do not use MotionFX, I only use MotionMC, my compass data is correct. what happens is that the library always report MMC_CALQSTATUSUNKNOWN and after moving my compass in a 3D 8 shape path, the library hangs and I have to reset my micro controller.

I also appreciate it if we could solve this problem.

[kkia]

Ow I just go the answer!

make sure of three notes:

1- calibration must be run for at least 5 seconds. before this time you always get the default values.

2- you should duplicate the heap and stack size in the assembly file, for the library probably uses dynamic memory.

3- you can use HAL_GetTick as the timestamp.

also take a look at this topic:

https://community.st.com/s/question/0D50X00009XkWyASAV/motionmc-calibration-fails-all-params-have-default-value