STM32F767 linker script problem

[Pilous Droip]

Hello. I have problem with linker script.

I have this memory map:

MEMORY
{
    FLASH (rx)        :   ORIGIN = 0x08000000, LENGTH = 2048K
    ITCMRAM (rw)      :   ORIGIN = 0x00000000, LENGTH = 16K
    DTCMRAM (rw)      :   ORIGIN = 0x20000000, LENGTH = 128K
    SRAM1 (rw)        :   ORIGIN = 0x20020000, LENGTH = 368K
    SRAM2 (rw)        :   ORIGIN = 0x2007C000, LENGTH = 16K
    BKPSRAM (rw)      :   ORIGIN = 0x40024000, LENGTH = 4K
}
 
 
/* Include main link script. Note: it will be searched in -L paths. */
INCLUDE Linker/sections.ld

 When I add this line, program crash:

. = ALIGN(4);
    _si_itcmram = LOADADDR(.itcmram_code);
    .itcmram_code : ALIGN(32)
    {
        . = ALIGN(32);
        _sitcmram = .;
        /* NULL */
        QUAD(0)
        QUAD(0)
        QUAD(0)
        QUAD(0)
        QUAD(0)
        QUAD(0)
        QUAD(0)
        QUAD(0)
        /* code */
        *(.itcmram_code .itcmram_code.*)
        _eitcmram = .;
        . = ALIGN(32);
    } > ITCMRAM AT>FLASH

 any idea, why program fail?

>>>> HardFault Exception <<<<
 
Fault registers:
SCB->HFSR  = 0x40000000
 DEBUGEVT  = 0
 FORCED    = 1
 VECTTBL   = 0
SCB->CFSR  = 0x00010000
 IACCVIOL  = 0
 DACCVIOL  = 0
 MUNSTKERR = 0
 MSTKERR   = 0
 MLSPERR   = 0
 MMARVALID = 0
 IBUSERR   = 0
 PRECISE E = 0
 IMPRECISE = 0
 UNSTKERR  = 0
 STKERR    = 0
 LSPERR    = 0
 BFARVALID = 0
 UNDEFINSTR= 1
 INVSTATE  = 0
 INVPC     = 0
 NOCP      = 0
 UNALIGNED = 0
 DIVBYZERO = 0
SCB->DFSR  = 0x0000000b
SCB->MMFAR = 0x00000000
SCB->BFAR  = 0x00000000
SCB->AFSR  = 0x00000000
SCB->ABFSR = 0x00000000
 
Exception stack frame:
R0    0x0000007e
R1    0x00000044
R2    0x0801c3c6
R3    0x40000000
R12   0x00000001
LR    0x08008063
PC    0x00000040
xPSR  0x81000000
 
 
 >>> forcing SYSTEM RESET

[Pilous Droip]

Problem was in startup file: startup_stm32f7x7xx.s

[Amel NASRI]

Hi @Pilous Droip​ ,

Could you please explain what was exactly the issue?

Thanks,

Amel