Using MPU9250 with nRF52 SDK and 52832 part

RE: Using MPU9250 with nRF52 SDK and 52832 part

achandran — Thu, 31 May 2018 16:01:41 GMT

Thanks. This is what I am thinking about too, do you have any pointers on what files you pulled and the changes you had to do for it to build?

RE: Using MPU9250 with nRF52 SDK and 52832 part

Kerry Calvert — Thu, 31 May 2018 15:41:55 GMT

I ended up pulling some code from the Thingy distribution in my source code base and making some modifications to the source and header so it could build. The modifications were to get around the assumptions about the pca10040 made in the Thingy code so I could build against a project that is using the pca10032.

The net result is a few modules pulled from the Thingy code that have modifications (inv_mpu.c, inv_mpu_dmp_motion_driver.c, drv_mpu_9250, and a few others) that will have to be reviewed on new releases of SDKnRF52 or Thingy code base. It is not ideal, but is manageable.

RE: Using MPU9250 with nRF52 SDK and 52832 part

achandran — Thu, 31 May 2018 13:48:50 GMT

Kerry,

I am going through this exact problem. I am using Keil for developing and wwas hoping to use the MPU9250 driver with pca10040. Did you resolve your questions? Any pointers?

RE: Using MPU9250 with nRF52 SDK and 52832 part

Susheel Nuguru — Tue, 13 Mar 2018 09:07:00 GMT

Hi,

https://github.com/NordicSemiconductor/Nordic-Thingy52-FW/blob/master/source/drivers/drv_mpu9250.c

https://github.com/NordicSemiconductor/Nordic-Thingy52-FW/blob/master/include/drivers/drv_mpu9250.h

Did you know that these are official files? If not, then this could be a good modules to base your libraries on

RE: Using MPU9250 with nRF52 SDK and 52832 part

Kerry Calvert — Fri, 09 Mar 2018 18:24:58 GMT

I looked over the sample code provided, but did not see the equivalent code such as drv_mpu9250 and drv_motion from the Thingy project. We are trying to decide whether the use the SDK13 on which the Thingy was built to take advantage of testing that has been done with this code, or to port this code to be compatible with a build based on SDK14.2

Is there a recommendation regarding doing this port in terms of what sort of risk we are taking, and what sort of support would be available if we run into problems?

RE: Using MPU9250 with nRF52 SDK and 52832 part

Kerry Calvert — Fri, 09 Mar 2018 18:00:35 GMT

Is there a recommendation regarding doing this port in terms of what sort of risk we are taking, and what sort of support would be available if we run into problems?

RE: Using MPU9250 with nRF52 SDK and 52832 part

karthikeyan — Mon, 05 Mar 2018 04:24:58 GMT

hi,

here is the source file for pca10040 download it from this link

https://github.com/Martinsbl/nrf5-mpu-examples

regards