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TM4C1294NCPDT: Bootloader crc32

Part Number: TM4C1294NCPDT

Tool/software:

Hello, i have enabled crc32 check in bootloader and after that i  have noticed my problems.

I have added the 16 byte header and added the marker word,computed the crc32 value  binpack executable.

The first problem i noticed was this

    pui32App = (uint32_t *)APP_START_ADDRESS;
    if((pui32App[0] == 0xffffffff) ||
       ((pui32App[0] & 0xfff00000) != 0x20000000) ||
       (pui32App[1] == 0xffffffff) ||
       ((pui32App[1] & 0xfff00001) != 0x00000001))
    {
        return(1);
    }


because the header was on top of the binary this code will always return 1 (marker words : 0xFF01FF02 and 0xFF03FF04 ).

after i changed this code 

    pui32App = (uint32_t *)APP_START_ADDRESS;
    if((pui32App[4] == 0xffffffff) ||
       ((pui32App[4] & 0xfff00000) != 0x20000000) ||
       (pui32App[5] == 0xffffffff) ||
       ((pui32App[5] & 0xfff00001) != 0x00000001))
    {
        return(1);
    }






it has passed crc32 check but my code did not start.

Are there more modifications i need to do  ?