[SOLVED] Create IVT and QSPI config on RT1052 Eval Board

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  • [SOLVED] Create IVT and QSPI config on RT1052 Eval Board

    I am trying to add a segment to a build for a RT1052 board.
    On the RT1052 you need to have a config section for QSPI which is located at the start of flash ( 0x60000000 ) which is 512 bytes long
    I inserted this section above the vector assignments in (MIMXRT1052_Vectors.s)

    Additionally you need to have IVT, which has info about the image in flash.


    I modified my flash_placement.xml file to add this segment, as follows.
    <ProgramSection alignment="4" load="No" name=".boot_hdr" start="0x60001000" />
    When I look into the map file it looks like the segment has been created but no data has been allocated for this section.


    __vectors_load_start__ = 0x60000000;
    .vectors 0x60000000 : AT(0x60000000)
    {
    __vectors_start__ = .;
    *(.vectors .vectors.*)
    }
    __vectors_end__ = __vectors_start__ + SIZEOF(.vectors);
    __vectors_size__ = SIZEOF(.vectors);
    __vectors_load_end__ = __vectors_end__;

    . = ASSERT(__vectors_start__ == __vectors_end__ || (__vectors_end__ >= __FLASH_segment_start__ && __vectors_end__ <= __FLASH_segment_end__) , "error: .vectors is too large to fit in FLASH memory segment");



    .boot_hdr 0x0000000060001000 0x0
    0x0000000060001000 __boot_hdr_start__ = .
    *(.boot_hdr .boot_hdr.*)
    0x0000000060001000 __boot_hdr_end__ = (__boot_hdr_start__ + SIZEOF (.boot_hdr))
    0x0000000000000000 __boot_hdr_size__ = SIZEOF (.boot_hdr)
    0x0000000060001000 __boot_hdr_load_end__ = __boot_hdr_end__
    0x0000000000000001 . = ASSERT (((__boot_hdr_start__ == __boot_hdr_end__) || ((__boot_hdr_end__ >= __FLASH_segment_start__) && (__boot_hdr_end__ <= __FLASH_segment_end__))), error: .boot_hdr is too large to fit in FLASH memory segment)
    0x0000000000000001 . = ASSERT ((__vectors_end__ <= __boot_hdr_start__), error: section .vectors overlaps absolute placed section .boot_hdr)
    0x0000000060001000 __init_load_start__ = ALIGN (__boot_hdr_end__, 0x4)

    Additionally when I look into the ld file that the placement.xml file creates it also has no data allocated.


    __boot_hdr_load_start__ = 0x60001000;
    .boot_hdr 0x60001000 : AT(0x60001000)
    {
    __boot_hdr_start__ = .;
    *(.boot_hdr .boot_hdr.*)
    }
    __boot_hdr_end__ = __boot_hdr_start__ + SIZEOF(.boot_hdr);
    __boot_hdr_size__ = SIZEOF(.boot_hdr);
    __boot_hdr_load_end__ = __boot_hdr_end__;

    . = ASSERT(__boot_hdr_start__ == __boot_hdr_end__ || (__boot_hdr_end__ >= __FLASH_segment_start__ && __boot_hdr_end__ <= __FLASH_segment_end__) , "error: .boot_hdr is too large to fit in FLASH memory segment");
    . = ASSERT(__vectors_end__ <= __boot_hdr_start__ , "error: section .vectors overlaps absolute placed section .boot_hdr");

    By looking at the ASSERT it looks like the linker thinks that the preceeding section (vectors) overlaps this section.
    But that section starts at 0x60000000 and it has a length of 0x200.


    Paul
  • Hello Paul,

    Thank you for your inquiry.
    When setting up your section you wrote load="No", change that to "Yes".
    Now the data should be allocated.

    Does that work for you?

    Best regards,
    Nino
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