MPU9250 with TM4C129X device (code+ sketch)

Hello PAk,

What sort of help are you looking for?

Regards
Amit

Amit Ashara said:

Hello PAk,

What sort of help are you looking for?

Regards
Amit

Hello Amit.

The data I'm getting is not working as expected. I have corrected the I2C function (in specific the !I2CMasterBusy and HWREG(ulI2CBase + I2C_O_MRIS) issues)

The same code is working better with mbed in a Nucleo board with the same MPU9250 device, so maybe there is an issue with the compiler, maybe it is the i2c readings, maybe it is how the sqrt functions behave with CCS compiler.... I am not sure, but I have spent 3 days with this and I am not able to find the cause.

Thank you

Hello PAk

It seems that polling may not be a good method considering the issues that are already known. Why aren't you using the interrupt driven mechanism?

Regards
Amit

Actually the interrupt function on the pin PM7 is described, but it is not implemented the interrupt enable to make things simple at first.
Please, feel free to change the code as you please.

Hello PAk

I was referring to the interrupt of the I2C peripheral to avoid polling I2C registers.

Regards
Amit

Amit Ashara said:

Hello PAk

I was referring to the interrupt of the I2C peripheral to avoid polling I2C registers.

Regards
Amit

That is also true....but the answer is mroe or less the same. I tried to clone the mbed/arduino most extended sketch and try to make it work on Tivaware-CCS.

In fact, changing some addresses, it works with MPU9150 as well.

If you want I can upload the MPU9150 code. 

Hello PAk

Unfortunately, I cannot help in development, but only debug. So if there is an issue that can be reproduced with MPU9150 (as I don't have MPU9250), I could help.

Regards
Amit

Thanks to the decision of TI of not supporting this device and my effort + time....I decided to not provide that information in this forum.

Sorry about any inconvenience.

Hello PAk

PAk said:

It happens the same than with the MPU9250, and probably is i2c related.

You mean that the issue occurs on the MPU9150 as well and that I can reproduce it with the sensor hub booster pack?

Regards

Amit

Yes, exactly. Maybe you would need to change the i2c port, I am using i2c2.
Regards

Hello PAk,

OK, got it. I will be get back to the post after a week, as there are 2 USB debugs pending for me on the forum....

Regards
Amit

Great!!!
I'll wait for your opinion!!
Regards

Any news on this? Amit

Regards

Hello PAk

I am unable to get working on this thread.

Regards
Amit

Amit Ashara said:

Hello PAk

I am unable to get working on this thread.

Regards

Amit

Wow!! Like that? It took me a while to make the example compatible with mpu9150...not happy at all.

Please, tell your boss thanks to him we have decided to make our new designs over Nucleo platform.

Probably, will port the existing too.

Good luck.