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..

Means you have not included the paths to the header files in the project include paths. How to do that is described in the video tutorials I linked you. The MPU project you are using is not based on ble_app_uart, but on ble_app_template. The ble_app_uart example does not include all header file paths that is used by ble_app_template. With that said, it does not look like the example use sensorsim, and you can remove the inclusion of the header file from main.

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MPU6050 with NRF52832 in segger

Sunil vignesh over 7 years ago

Hi,

I am working on MPU-6050 sensor.

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

GitHub - Martinsbl/nrf5-mpu-examples

GitHub

Contribute to Martinsbl/nrf5-mpu-examples development by creating an account on GitHub.

in that there is no SES file.

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

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Jørgen Holmefjord over 7 years ago in reply to Sunil vignesh +1 verified

Means you have not included the paths to the header files in the project include paths. How to do that is described in the video tutorials I linked you. The MPU project you are using is not based on ble_app_uart…

0 Jørgen Holmefjord over 7 years ago

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
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- 0 Sunil vignesh over 7 years ago in reply to Jørgen Holmefjord
  Hi,
  
  i am trying to alternate " ble_app_uart_pca10040_s132 " segger solution to work in this MPU-6050 library
  
  for that i also got the error #error "No MPU defined. Please define MPU in Target Options C/C++ Defines"
  
  and more error like
  
  Rebuilding ‘ble_app_uart_pca10040_s132 - MPU’ from solution ‘ble_app_uart_pca10040_s132 - MPU’ 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_button.c’ Compiling ‘app_error.c’ Compiling ‘app_error_handler_gcc.c’ Compiling ‘app_error_weak.c’ Compiling ‘app_fifo.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 ‘nrf_drv_uart.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 ‘bsp.c’ Compiling ‘bsp_btn_ble.c’ Compiling ‘nrf_drv_mpu_spi.c’ Compiling ‘nrf_drv_mpu_twi.c’ Compiling ‘main.c’ app_mpu.h: No such file or directory Compiling ‘app_mpu.c’ app_mpu.c #error "No MPU defined. Please define MPU in Target Options C/C++ Defines" app_mpu.c #error "No/unknown MPU defined" app_mpu.c #elif with no expression 'MPU_REG_SMPLRT_DIV' undeclared (first use in this function) each undeclared identifier is reported only once for each function it appears in 'MPU_REG_INT_PIN_CFG' undeclared (first use in this function) 'MPU_REG_INT_ENABLE' undeclared (first use in this function) 'MPU_REG_SIGNAL_PATH_RESET' undeclared (first use in this function) 'MPU_REG_PWR_MGMT_1' undeclared (first use in this function) 'MPU_REG_ACCEL_XOUT_H' undeclared (first use in this function) 'MPU_REG_GYRO_XOUT_H' undeclared (first use in this function) 'MPU_REG_TEMP_OUT_H' undeclared (first use in this function) 'MPU_REG_INT_STATUS' undeclared (first use in this function) Compiling ‘ble_mpu.c’ ble_mpu.h ble_mpu.c #error "No MPU defined. Please define MPU in Target Options C/C++ Defines" ble_mpu.h ble_mpu.c #error "No/unknown MPU defined" Compiling ‘SEGGER_RTT.c’ Build failed
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- 0 Jørgen Holmefjord over 7 years ago in reply to 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.
  - 0 Sunil vignesh over 7 years ago in reply to Jørgen Holmefjord
    
    I am sorry, i don't know how to config the file please help me i need to work in MPU-6050 with TWI protocol
  - 0 Jørgen Holmefjord over 7 years ago in reply to Jørgen Holmefjord
    
    Please go through all the Segger Embedded Studio video tutorials. They explain how to do all this.
  - 0 Sunil vignesh over 7 years ago in reply to Jørgen Holmefjord
    
    while in a code itself we need to select MPU-6050..? and TWI..?
  - 0 Jørgen Holmefjord over 7 years ago in reply to Sunil vignesh
    
    You set it in the preprocessor symbols.
    
    Left click Project in the project file browser and selec Options.
    
    Select Common from the dropdown menu at the top left corner.
    
    Click on Preprocessor under Code on left side.
    
    Double click Preprocessor Definitions.
    
    Add the flags as described on Github. In your case you should add MPU60x0 and MPU_USES_TWI.
  - 0 Sunil vignesh over 7 years ago in reply to Jørgen Holmefjord
    
    Hi,
    
    Thank you
    
    i did that one.
    
    The sdk_config.h file must be the BLE UART sdk file or
    
    MPU_EXAMPLE\nrf5-ble-mpu-simple\pca10040\s132\config sdk_config.h
    
    which one we need to use?
    
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  - 0 Jørgen Holmefjord over 7 years ago in reply to Sunil vignesh
    
    There is a Migration guide in SDK 15.0.0 Getting Started section. Migration from 15.0.0 to 15.2.0 should be simpler as it is not a major SDK version update.
    
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  - 0 Sunil vignesh over 7 years ago in reply to Jørgen Holmefjord
    
    Jørgen Holmefjord said:
    Migration from 15.0.0 to 15.2.0
    
    But if we convert 14.2 sdk to 15.2 sdk. is might be same or its different as SDK version update
    
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  - 0 Jørgen Holmefjord over 7 years ago in reply to Sunil vignesh
    
    There should not be API changes from 15.0.0 to 15.2.0, but there could be additional features, bug fixes, etc. Follow the migration guide for SDK 15.0.0 and you should be well on your way.
  - 0 SL06 over 6 years ago in reply to Jørgen Holmefjord
    
    HI, I have installed the project in SDK14.2 as instructed. The project compiled and download with no error on the nrf52DK board. The MPU9255 is connected by i2C with SCL to pin P0.27, SDA to pin P026. Those pin number have been define in the nrf_drv_mpu_twi.c file. The MPU9255 is define in the Preprocessor definitions.
    
    Whe I run the program, I have the following error reported on the USB port:
    
    <info> app: [2J[;H
    <warning> nrf_sdh_ble: RAM starts at 0x200020E0, can be adjusted to 0x20002A68.
    <warning> nrf_sdh_ble: RAM size can be adjusted to 0xD598.
    <error> nrf_sdh_ble: sd_ble_enable() returned NRF_ERROR_NO_MEM.
    <error> app: Error 0x0004 (4) at line 566 in file: /Users/slareau/nrf52 development/nRF5_SDK_14.2.0_17b948a/examples/nrf5-mpu-examples/nrf5-ble-mpu-simple/main.c
    
    Line 564 to 566 in main.c are :
    
    // Enable BLE stack. err_code = nrf_sdh_ble_enable(&ram_start); APP_ERROR_CHECK(err_code);
    
    Could someone help me ?
    
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  - 0 Jørgen Holmefjord over 6 years ago in reply to SL06
    
    Your question is not related to the topic of this thread. Please post it in a separate thread. Also, see this tutorial.
    
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  - 0 SL06 over 6 years ago in reply to Jørgen Holmefjord
    
    After some research I can answer my question myself : to change ram start and size, you open «Project options», got to «linker» and to «Sertion placement macros», RAM start and size are the last values. See also : https://www.youtube.com/watch?v=uP8RYgYGRvI&hd=1&feature=youtu.be&t=254
    
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