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nRF52840 flash linker placement config through SES IDE (include FDS)

Hi there,

I was used IAR to compile my source, and combine with bootloader and soft device, and it was always work fine.

Now I have changed my compiling tool to SES IDE, but I found that will work abnormal when FDS read or write.

(debug message or LED control will not work when I executed the FDS read or write)

My FDS page is 1024, and the application start address is set to 0x26000

and my linker section placement config is as below. 

  • Segger Embedded Studio (SES) Release 4.16
  • windows 7
  • nRF52 (PCA10056, nRF52840)
  • nRF5_SDK_15.2.0_9412b96
  • base on the serial_uartes_pca10056 sample code

How can I config the flash linker placement through the SES IDE (include FDS), or if this issue is caused by other reasons?

Thank you for helping me.

  • HI CJChang, 

    The Section Placement Macros look correct, can you post your flash_placement.xml file? ( Should be located in the same folder as the .emProject project file)

    It sounds odd that initiating a FDS write or read should affect logging or the GPIOs. Would it be possible for you to upload the project folder so that I could debug the issue?

    Best regards

    Bjørn

  • Hi bjorn-spackeli

    Thank you.

    I had a compiler error before, and I reference below link to modify the flash_placement.xml file, and compile success.

     But I found that will work abnormal when FDS read or write. ( i.e., fnGetFlashData() in main.c )

    https://devzone.nordicsemi.com/f/nordic-q-a/12029/segger-embedded-studio---unplaced_sections-problem

    add <ProgramSection alignment="4" load="Yes" name=".fs_data" />

    attach is my project folder, bootloader and softdevice.

    Thank you for your help.

    <!DOCTYPE Linker_Placement_File>
    <Root name="Flash Section Placement">
      <MemorySegment name="FLASH" start="$(FLASH_PH_START)" size="$(FLASH_PH_SIZE)">
        <ProgramSection alignment="0x100" load="Yes" name=".vectors" start="$(FLASH_START)" />
    	<ProgramSection alignment="4" load="Yes" name=".fs_data" />
        <ProgramSection alignment="4" load="Yes" name=".init" />
        <ProgramSection alignment="4" load="Yes" name=".init_rodata" />
        <ProgramSection alignment="4" load="Yes" name=".text" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".nrf_queue" inputsections="*(.nrf_queue*)" address_symbol="__start_nrf_queue" end_symbol="__stop_nrf_queue" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".log_const_data" inputsections="*(SORT(.log_const_data*))" address_symbol="__start_log_const_data" end_symbol="__stop_log_const_data" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".log_backends" inputsections="*(SORT(.log_backends*))" address_symbol="__start_log_backends" end_symbol="__stop_log_backends" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".nrf_balloc" inputsections="*(.nrf_balloc*)" address_symbol="__start_nrf_balloc" end_symbol="__stop_nrf_balloc" />
        <ProgramSection alignment="4" keep="Yes" load="No" name=".nrf_sections" address_symbol="__start_nrf_sections" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".log_dynamic_data"  inputsections="*(SORT(.log_dynamic_data*))" runin=".log_dynamic_data_run"/>
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".log_filter_data"  inputsections="*(SORT(.log_filter_data*))" runin=".log_filter_data_run"/>
        <ProgramSection alignment="4" load="Yes" name=".dtors" />
        <ProgramSection alignment="4" load="Yes" name=".ctors" />
        <ProgramSection alignment="4" load="Yes" name=".rodata" />
        <ProgramSection alignment="4" load="Yes" name=".ARM.exidx" address_symbol="__exidx_start" end_symbol="__exidx_end" />
        <ProgramSection alignment="4" load="Yes" runin=".fast_run" name=".fast" />
        <ProgramSection alignment="4" load="Yes" runin=".data_run" name=".data" />
        <ProgramSection alignment="4" load="Yes" runin=".tdata_run" name=".tdata" />
      </MemorySegment>
      <MemorySegment name="RAM" start="$(RAM_PH_START)" size="$(RAM_PH_SIZE)">
        <ProgramSection alignment="0x100" load="No" name=".vectors_ram" start="$(RAM_START)" address_symbol="__app_ram_start__"/>
        <ProgramSection alignment="4" keep="Yes" load="No" name=".nrf_sections_run" address_symbol="__start_nrf_sections_run" />
        <ProgramSection alignment="4" keep="Yes" load="No" name=".log_dynamic_data_run" address_symbol="__start_log_dynamic_data" end_symbol="__stop_log_dynamic_data" />
        <ProgramSection alignment="4" keep="Yes" load="No" name=".log_filter_data_run" address_symbol="__start_log_filter_data" end_symbol="__stop_log_filter_data" />
        <ProgramSection alignment="4" keep="Yes" load="No" name=".nrf_sections_run_end" address_symbol="__end_nrf_sections_run" />
        <ProgramSection alignment="4" load="No" name=".fast_run" />
        <ProgramSection alignment="4" load="No" name=".data_run" />
        <ProgramSection alignment="4" load="No" name=".tdata_run" />
        <ProgramSection alignment="4" load="No" name=".bss" />
        <ProgramSection alignment="4" load="No" name=".tbss" />
        <ProgramSection alignment="4" load="No" name=".non_init" />
        <ProgramSection alignment="4" size="__HEAPSIZE__" load="No" name=".heap" />
        <ProgramSection alignment="8" size="__STACKSIZE__" load="No" place_from_segment_end="Yes" name=".stack"  address_symbol="__StackLimit" end_symbol="__StackTop"/>
        <ProgramSection alignment="8" size="__STACKSIZE_PROCESS__" load="No" name=".stack_process" />
      </MemorySegment>
    </Root>
    

  • HI CJChang, 

    can you try to use the attached flash_placement.xml file?

    <!DOCTYPE Linker_Placement_File>
    <Root name="Flash Section Placement">
      <MemorySegment name="FLASH" start="$(FLASH_PH_START)" size="$(FLASH_PH_SIZE)">
        <ProgramSection load="no" name=".reserved_flash" start="$(FLASH_PH_START)" size="$(FLASH_START)-$(FLASH_PH_START)" />
        <ProgramSection alignment="0x100" load="Yes" name=".vectors" start="$(FLASH_START)" />
        <ProgramSection alignment="4" load="Yes" name=".init" />
        <ProgramSection alignment="4" load="Yes" name=".init_rodata" />
        <ProgramSection alignment="4" load="Yes" name=".text" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".sdh_ble_observers" inputsections="*(SORT(.sdh_ble_observers*))" address_symbol="__start_sdh_ble_observers" end_symbol="__stop_sdh_ble_observers" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".cli_command" inputsections="*(.cli_command*)" address_symbol="__start_cli_command" end_symbol="__stop_cli_command" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".pwr_mgmt_data" inputsections="*(SORT(.pwr_mgmt_data*))" address_symbol="__start_pwr_mgmt_data" end_symbol="__stop_pwr_mgmt_data" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".nrf_queue" inputsections="*(.nrf_queue*)" address_symbol="__start_nrf_queue" end_symbol="__stop_nrf_queue" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".sdh_stack_observers" inputsections="*(SORT(.sdh_stack_observers*))" address_symbol="__start_sdh_stack_observers" end_symbol="__stop_sdh_stack_observers" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".sdh_req_observers" inputsections="*(SORT(.sdh_req_observers*))" address_symbol="__start_sdh_req_observers" end_symbol="__stop_sdh_req_observers" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".sdh_state_observers" inputsections="*(SORT(.sdh_state_observers*))" address_symbol="__start_sdh_state_observers" end_symbol="__stop_sdh_state_observers" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".log_const_data" inputsections="*(SORT(.log_const_data*))" address_symbol="__start_log_const_data" end_symbol="__stop_log_const_data" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".sdh_soc_observers" inputsections="*(SORT(.sdh_soc_observers*))" address_symbol="__start_sdh_soc_observers" end_symbol="__stop_sdh_soc_observers" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".log_backends" inputsections="*(SORT(.log_backends*))" address_symbol="__start_log_backends" end_symbol="__stop_log_backends" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".nrf_balloc" inputsections="*(.nrf_balloc*)" address_symbol="__start_nrf_balloc" end_symbol="__stop_nrf_balloc" />
        <ProgramSection alignment="4" keep="Yes" load="No" name=".nrf_sections" address_symbol="__start_nrf_sections" />
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".cli_sorted_cmd_ptrs"  inputsections="*(.cli_sorted_cmd_ptrs*)" runin=".cli_sorted_cmd_ptrs_run"/>
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".fs_data"  inputsections="*(.fs_data*)" runin=".fs_data_run"/>
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".log_dynamic_data"  inputsections="*(SORT(.log_dynamic_data*))" runin=".log_dynamic_data_run"/>
        <ProgramSection alignment="4" keep="Yes" load="Yes" name=".log_filter_data"  inputsections="*(SORT(.log_filter_data*))" runin=".log_filter_data_run"/>
        <ProgramSection alignment="4" load="Yes" name=".dtors" />
        <ProgramSection alignment="4" load="Yes" name=".ctors" />
        <ProgramSection alignment="4" load="Yes" name=".rodata" />
        <ProgramSection alignment="4" load="Yes" name=".ARM.exidx" address_symbol="__exidx_start" end_symbol="__exidx_end" />
        <ProgramSection alignment="4" load="Yes" runin=".fast_run" name=".fast" />
        <ProgramSection alignment="4" load="Yes" runin=".data_run" name=".data" />
        <ProgramSection alignment="4" load="Yes" runin=".tdata_run" name=".tdata" />
      </MemorySegment>
      <MemorySegment name="RAM" start="$(RAM_PH_START)" size="$(RAM_PH_SIZE)">
        <ProgramSection load="no" name=".reserved_ram" start="$(RAM_PH_START)" size="$(RAM_START)-$(RAM_PH_START)" />
        <ProgramSection alignment="0x100" load="No" name=".vectors_ram" start="$(RAM_START)" address_symbol="__app_ram_start__"/>
        <ProgramSection alignment="4" keep="Yes" load="No" name=".nrf_sections_run" address_symbol="__start_nrf_sections_run" />
        <ProgramSection alignment="4" keep="Yes" load="No" name=".cli_sorted_cmd_ptrs_run" address_symbol="__start_cli_sorted_cmd_ptrs" end_symbol="__stop_cli_sorted_cmd_ptrs" />
        <ProgramSection alignment="4" keep="Yes" load="No" name=".fs_data_run" address_symbol="__start_fs_data" end_symbol="__stop_fs_data" />
        <ProgramSection alignment="4" keep="Yes" load="No" name=".log_dynamic_data_run" address_symbol="__start_log_dynamic_data" end_symbol="__stop_log_dynamic_data" />
        <ProgramSection alignment="4" keep="Yes" load="No" name=".log_filter_data_run" address_symbol="__start_log_filter_data" end_symbol="__stop_log_filter_data" />
        <ProgramSection alignment="4" keep="Yes" load="No" name=".nrf_sections_run_end" address_symbol="__end_nrf_sections_run" />
        <ProgramSection alignment="4" load="No" name=".fast_run" />
        <ProgramSection alignment="4" load="No" name=".data_run" />
        <ProgramSection alignment="4" load="No" name=".tdata_run" />
        <ProgramSection alignment="4" load="No" name=".bss" />
        <ProgramSection alignment="4" load="No" name=".tbss" />
        <ProgramSection alignment="4" load="No" name=".non_init" />
        <ProgramSection alignment="4" size="__HEAPSIZE__" load="No" name=".heap" />
        <ProgramSection alignment="8" size="__STACKSIZE__" load="No" place_from_segment_end="Yes" name=".stack"  address_symbol="__StackLimit" end_symbol="__StackTop"/>
        <ProgramSection alignment="8" size="__STACKSIZE_PROCESS__" load="No" name=".stack_process" />
      </MemorySegment>
    </Root>
    

    In order to help you I need the entire project folder so that I can compile and debug the project. I cannot do that with just the hex files. 

    Best regards

    Bjørn

  • Hi bjorn-spockeli,

    it works !!

    Thank you for your great support !!

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