MPU6050 with NRF52832 in segger

[Sunil vignesh]

Hi,

I am working on MPU-6050 sensor.

I have downloaded the NRF5-MPU-EXAMPLE  from this link

in that there is no SES file.

How to create a SES file to work this code in segger..

[Jørgen Holmefjord]

Hi,

I would recommend that you copy a SES project from another example in the same SDK version and modify this with the paths and source files required for the MPU examples. This video tutorial should show you how to add files into the SES project.

For instance, if you want to use nrf5-ble-mpu-data-ready-interrupts example on a PCA10040 board, you should copy the ses folder from examples\ble_peripheral\ble_app_uart\pca10040\s132\ into examples\nrf5-mpu-examples\nrf5-ble-mpu-data-ready-interrupts\pca10040\s132\ and then add the required MPU library files.

Best regards,
Jørgen

[Jørgen Holmefjord]

You need to define the symbols (in project preprocessor symbold), configuring what device you are using. This is specified in the "How to use" section of the GitHub repository page.

[Sunil vignesh]

HI,

As you said i have created the SES folder in the example path:

F:\nRF52 SDK files\nRF5_SDK_15.2.0_9412b96\nRF5_SDK_15.2.0_9412b96\examples\nrf5-mpu-examples\nrf5-ble-mpu-simple\pca10040\s132\SES

and copy the BLE_UART SES file into that and changed the name into nrf5-ble-mpu-simple_pca10040_s132 for EMPROJECT file and EMSESSION file and changed in the <open solution> in editor.

then I

1. remove the main.c file

2. added main.c file of nrf5-ble-mpu-simple_pca10040_s132, app_mpu.c,ble_mpu.c,nrf_drv_mpu_twi.c and nrf_drv_mpu_spi.c

3.  in sdk_config.h file

#ifndef NRFX_TWI_ENABLED
#define NRFX_TWI_ENABLED 1
#endif
// <q> NRFX_TWI0_ENABLED  - Enable TWI0 instance
 

#ifndef NRFX_TWI0_ENABLED
#define NRFX_TWI0_ENABLED 1
#endif

#ifndef TWI_ENABLED
#define TWI_ENABLED 1
#endif

// <e> TWI0_ENABLED - Enable TWI0 instance
//==========================================================
#ifndef TWI0_ENABLED
#define TWI0_ENABLED 1
#endif

4. added User include directories and preprocessor definitions as

while Build the project i got 6 errors

Rebuilding ‘nrf5-ble-mpu-simple_pca10040_s132’ from solution ‘nrf5-ble-mpu-simple_pca10040_s132’ in configuration ‘Release’
  Assembling ‘thumb_crt0.s’
  Compiling ‘nrf_log_backend_rtt.c’
  Compiling ‘nrf_log_backend_serial.c’
  Compiling ‘nrf_log_default_backends.c’
  Compiling ‘nrf_log_frontend.c’
  Compiling ‘nrf_log_str_formatter.c’
  Compiling ‘app_error.c’
  Compiling ‘app_button.c’
  Compiling ‘app_error_handler_gcc.c’
  Compiling ‘app_fifo.c’
  Compiling ‘app_error_weak.c’
  Compiling ‘app_scheduler.c’
  Compiling ‘app_timer.c’
  Compiling ‘app_uart_fifo.c’
  Compiling ‘app_util_platform.c’
  Compiling ‘hardfault_implementation.c’
  Compiling ‘nrf_assert.c’
  Compiling ‘nrf_atfifo.c’
  Compiling ‘nrf_atflags.c’
  Compiling ‘nrf_atomic.c’
  Compiling ‘nrf_balloc.c’
  Compiling ‘nrf_fprintf.c’
  Compiling ‘nrf_fprintf_format.c’
  Compiling ‘nrf_memobj.c’
  Compiling ‘nrf_pwr_mgmt.c’
  Compiling ‘nrf_ringbuf.c’
  Compiling ‘nrf_section_iter.c’
  Compiling ‘nrf_strerror.c’
  Compiling ‘retarget.c’
  Assembling ‘ses_startup_nrf52.s’
  Assembling ‘ses_startup_nrf_common.s’
  Compiling ‘system_nrf52.c’
  Compiling ‘boards.c’
  Compiling ‘nrf_drv_clock.c’
  Compiling ‘nrfx_clock.c’
  Compiling ‘nrfx_gpiote.c’
  Compiling ‘nrfx_power_clock.c’
  Compiling ‘nrfx_prs.c’
  Compiling ‘nrfx_uart.c’
  Compiling ‘nrfx_uarte.c’
  Compiling ‘nrfx_spi.c’
  Compiling ‘nrfx_twi.c’
  Compiling ‘nrfx_twim.c’
  Compiling ‘bsp.c’
  Compiling ‘bsp_btn_ble.c’
    nrfx_glue.h
    nrfx.h
    nrf_gpio.h
    boards.h
    bsp.h
    bsp_btn_ble.h
    bsp_btn_ble.c
    static assertion failed: "NRF_SDH_BLE_ENABLED not set!"
    in definition of macro '_SELECT_ASSERT_FUNC'
    in expansion of macro 'STATIC_ASSERT_MSG'
    in expansion of macro 'STATIC_ASSERT'
    in expansion of macro 'NRF_SDH_BLE_OBSERVER'
  Compiling ‘main.c’
    ble_srv_common.h
    main.c
    static assertion failed: "NRF_SDH_BLE_ENABLED not set!"
    in definition of macro '_SELECT_ASSERT_FUNC'
    in expansion of macro 'STATIC_ASSERT_MSG'
    in expansion of macro 'STATIC_ASSERT'
    in expansion of macro 'NRF_SDH_BLE_OBSERVER'
    in expansion of macro 'NRF_BLE_GATT_DEF'
    static assertion failed: "NRF_SDH_BLE_ENABLED not set!"
    in definition of macro '_SELECT_ASSERT_FUNC'
    in expansion of macro 'STATIC_ASSERT_MSG'
    in expansion of macro 'STATIC_ASSERT'
    in expansion of macro 'NRF_SDH_BLE_OBSERVER'
    in expansion of macro 'BLE_ADVERTISING_DEF'
    static assertion failed: "NRF_SDH_SOC_ENABLED not set!"
    in definition of macro '_SELECT_ASSERT_FUNC'
    in expansion of macro 'STATIC_ASSERT_MSG'
    in expansion of macro 'STATIC_ASSERT'
    in expansion of macro 'NRF_SDH_SOC_OBSERVER'
    in expansion of macro 'BLE_ADVERTISING_DEF'
    static assertion failed: "NRF_SDH_BLE_ENABLED not set!"
    in definition of macro '_SELECT_ASSERT_FUNC'
    in expansion of macro 'STATIC_ASSERT_MSG'
    in expansion of macro 'STATIC_ASSERT'
    in expansion of macro 'NRF_SDH_BLE_OBSERVER'
    'BSP_INIT_LED' undeclared (first use in this function)
    each undeclared identifier is reported only once for each function it appears in
  Compiling ‘app_mpu.c’
    app_mpu.c
    #warning "INFO: The MPU is using TWI drivers." [-Wcpp]
Build failed

[Jørgen Holmefjord]

You get these errors because you try to run the example in SDK 15.2.0. The Git repository say the examples have been written and tested for SDK 14.2.0, this is the version you have to use.

Please clone the mpu repository into examples directory in SDK v14.2.0. Then delete the entire nrf5-ble-mpu-simple directory, and extract the following: nrf5-ble-mpu-simple.zip

I have created the project for you.

[Sunil vignesh]

HI Jorgen,

Thanks a lot for the project.

as you said i replace the directory and i build

i got 3 errors

F:\nRF52 SDK files\nRF5_SDK_15.2.0_9412b96\nRF5_SDK_15.2.0_9412b96\components\libraries\experimental_log\src\nrf_log_backend_rtt.c: No such file or directory

F:\nRF52 SDK files\nRF5_SDK_15.2.0_9412b96\nRF5_SDK_15.2.0_9412b96\components\libraries\experimental_log\src\nrf_log_backend_serial.c: No such file or directory

F:\nRF52 SDK files\nRF5_SDK_15.2.0_9412b96\nRF5_SDK_15.2.0_9412b96\components\libraries\experimental_log\src\nrf_log_backend_uart.c: No such file or directory

and i have seen in the preprocessor that

../../../../../../components/libraries/experimental_log

../../../../../../components/libraries/experimental_log/src

../../../../../../components/libraries/experimental_memobj

../../../../../../components/libraries/experimental_section_vars

while in my directory there no such experimental_log folder

but there is only log/src/ (in that those files are available)

shall i change the preprocessor file or else i need to create the experimental_log folder..

[Sunil vignesh]

Hi,

IS there any library that suits for BMI160 bosch accelerometer gyroscope sensor 

any code related to SDK_15.2

[Jørgen Holmefjord]

Yes, you need to change the path to the log directory in preprocessor include paths to the correct path in SDK 15.2.0. Note that the example is not written for SDK 15.2.0 and there might be many API changes between the major SDK versions.