Is there any way to make hex file like setting.hex file which is automatically write my data in "APP DATA" section when i include the .hex file with my application.hex file

[Amit Kanade]

hello all,

i am using nRF52832 SoC in my project and my requirement is to write some configuration into internal flash when i flash the program using segger j link.

for better understanding i explain the steps which i want

1. i have one application.hex, setting.hex, bootloader.hex files

2. i have added setting.hex and bootloader.hex file in additional load file section in segger embedded studio

Now what i required

i want to make one .hex file which is having some configuration about my project ( like setting.hex file which write the setting in internal flash when we flash the program on SoC ) but i don't have any idea, how i make this type of hex file

i need one configuration.hex (which is having configuration about my project) file so i can include this hex file in additional load file section and access the data from my application

[Kenneth]

Have you considered using nrfjprog --memwr for this?

Alternatively compile a project with something like:
const uint32_t  my_variable __attribute__((at(ABSOLUTE_ADDRESS))) __attribute__((used)) = value;
const uint32_t UICR_ARRAY[4] __attribute__((at(0x10001080))) __attribute__((used)) =  {1, 2, 3, 4};

Or follow this:
https://devzone.nordicsemi.com/f/nordic-q-a/28589/placing-data-at-a-specific-memory-address-with-segger-embedded-studio

[Amit Kanade]

hello kenneth

i tried with same way but did not get the expected result

i am using segger embedded studio so i write code something like:

#define SERIAL_NUMBER ( 0x12 )

    const uint32_t vpd_addr
    __attribute__((section(".vpd_address")))
    __attribute__((used)) = SERIAL_NUMBER;

also define section in flash_placement.xml like this

<MemorySegment name="$(FLASH_NAME:FLASH)">

[...]
    <ProgramSection alignment="4" load="yes" name=".vpd_address" start="0x00074000" />
[...]

 </MemorySegment>

after this changes i debug the code and view the memory map but my value is not written on 0x74000 address

[Kenneth]

Try add keep="yes" to the programsection.

[Amit Kanade]

yes now it working as expected thank you