Migrating from Keil to SES - Error with DFU INIT service

[KrishNa]

Hello Guys,,

I am trying to migrate my project form keil to segger embedded studio. My product is based on sdk 12.2.0, using softdevice s130 on nrf51822.
I searched for all the posts that helped in migrating to SES and able to successfully build my application project. But when flashing the build to my board
it is getting stuck at nrf_dfu_flash_erase function in dfu_init

I tried debugging and it is giving the error FS_ERR_INVALID_CFG in check_config(p_config) function. searched for the solution in the forum posts but nothing helped so far.
please help us to resolve as we are nearing production.

I am attaching my flash placement file for your reference

Fullscreen 1030.flash_placement.xml Download

<!DOCTYPE Linker_Placement_File>
<Root name="Flash Section Placement">
  <MemorySegment name="$(FLASH_NAME:FLASH)">
    <ProgramSection alignment="0x100" load="Yes" name=".vectors" start="$(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" 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" name=".bootloaderSettings" />
    <ProgramSection alignment="4" load="Yes" runin=".tdata_run" name=".tdata" />
    <ProgramSection alignment="4" keep="Yes" load="Yes" runin=".fs_data_run" name=".fs_data" />
  </MemorySegment>
  <MemorySegment name="$(RAM_NAME:RAM);SRAM">
    <ProgramSection alignment="0x100" load="No" name=".vectors_ram" start="$(RAM_START:$(SRAM_START:))" />
    <ProgramSection alignment="4" load="No" name=".fast_run" />
    <ProgramSection alignment="4" load="No" name=".data_run" />
    <ProgramSection alignment="4" load="No" name=".bss" />
    <ProgramSection alignment="4" load="No" name=".tbss" />
    <ProgramSection alignment="4" load="No" name=".tdata_run" />
    <ProgramSection alignment="4" load="No" name=".non_init" />
    <ProgramSection alignment="4" size="__HEAPSIZE__" load="No" name=".heap" />
    <ProgramSection alignment="8" size="__STACKSIZE__" load="No" place_from_segment_end="Yes" name=".stack" />
    <ProgramSection alignment="8" size="__STACKSIZE_PROCESS__" load="No" name=".stack_process" />
    <ProgramSection alignment="4" size="__STACKSIZE__" load="No" name=".fs_data_run" address_symbol="__start_fs_data"  end_symbol="__stop_fs_data" />
    <ProgramSection alignment="4" keep="Yes" load="No" name=".fs_data_run" address_symbol="__start_fs_data"  end_symbol="__stop_fs_data" />
  </MemorySegment>
  <MemorySegment name="$(FLASH2_NAME:FLASH2)">
    <ProgramSection alignment="4" load="Yes" name=".text2" />
    <ProgramSection alignment="4" load="Yes" name=".rodata2" />
    <ProgramSection alignment="4" load="Yes" runin=".data2_run" name=".data2" />
  </MemorySegment>
  <MemorySegment name="$(RAM2_NAME:RAM2)">
    <ProgramSection alignment="4" load="No" name=".data2_run" />
    <ProgramSection alignment="4" load="No" name=".bss2" />
  </MemorySegment>
</Root>

[bjorn-spockeli]

Thanks for the screenshots. 

In the disassembly I can see that the FS_SECTION_VARS_START_ADDR, which is loaded into r3 is 0x20005010 (  __fs_data_run_start__) and that FS_SECTION_VARS_END_ADDR is 0x20005430 ( __fs_data_run_load_end__). The config variable is 0x0001b0c0, which is flash and not RAM. 

The fs_dfu_config variable of type fs_config_t should be a static and should be placed in RAM, not flash. 

 You need change

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

under FLASH MemorySegment to the following to ensure that in runs in RAM

  <ProgramSection alignment="4" keep="Yes" load="Yes" name=".fs_data"  inputsections="*(.fs_data*)" runin=".fs_data_run"/>

I also see that you have two sections with name fs_data_run in the RAM memory Segments

<ProgramSection alignment="4" size="__STACKSIZE__" load="No" name=".fs_data_run" address_symbol="__start_fs_data" end_symbol="__stop_fs_data" />
<ProgramSection alignment="4" keep="Yes" load="No" name=".fs_data_run" address_symbol="__start_fs_data" end_symbol="__stop_fs_data" />

Can you try to remove the first one?

-Bjørn