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

RE: 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 — Wed, 02 Sep 2020 11:31:04 GMT

yes now it working as expected thank you

RE: 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

Kenneth — Wed, 02 Sep 2020 07:22:52 GMT

Try add keep="yes" to the programsection.

RE: 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 — Tue, 01 Sep 2020 11:20:43 GMT

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

RE: 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 — Mon, 31 Aug 2020 14:33:15 GMT

thank you for the fast response on this. i will definitely use this solution but still i am curious to know that, we can't make separate hex( which is having some data ) file and directly flash into internal flash .... right ?

RE: 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

Kenneth — Mon, 31 Aug 2020 13:05:41 GMT

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