rt-thread/bsp/stm32/stm32h723-lxb-disco/board/linker_scripts/link.icf

/*###ICF### Section handled by ICF editor, don't touch! ****/
/*-Editor annotation file-*/
/* IcfEditorFile="$TOOLKIT_DIR$\config\ide\IcfEditor\cortex_v1_0.xml" */
/*-Specials-*/
define symbol __ICFEDIT_intvec_start__ = 0x08000000;
/*-Memory Regions-*/
define symbol __ICFEDIT_region_ROM_start__ = 0x08000000;
define symbol __ICFEDIT_region_ROM_end__   = 0x080FFFFF; /* 1MB FLASH */
define symbol __ICFEDIT_region_RAM_start__ = 0x24000000;
define symbol __ICFEDIT_region_RAM_end__   = 0x2404FFFF; /* 320KB AXI SRAM */
/*-Sizes-*/
define symbol __ICFEDIT_size_cstack__ = 0x0400;
define symbol __ICFEDIT_size_heap__   = 0x000;
/**** End of ICF editor section. ###ICF###*/

/* Commented memory regions for reference */
/* define symbol __ICFEDIT_region_ITCM_start__ = 0x00000000; */
/* define symbol __ICFEDIT_region_ITCM_end__   = 0x0000FFFF; /\* 64KB ITCM *\/ */
/* define symbol __ICFEDIT_region_DTCM_start__ = 0x20000000; */
/* define symbol __ICFEDIT_region_DTCM_end__   = 0x2001FFFF; /\* 128KB DTCM *\/ */
/* define symbol __ICFEDIT_region_SRAM2_start__ = 0x30000000; */
/* define symbol __ICFEDIT_region_SRAM2_end__   = 0x30007FFF; /\* 32KB AHB SRAM D2 *\/ */
/* define symbol __ICFEDIT_region_SRAM3_start__ = 0x38000000; */
/* define symbol __ICFEDIT_region_SRAM3_end__   = 0x38003FFF; /\* 16KB AHB SRAM D3 *\/ */
/* define symbol __ICFEDIT_region_BSRAM_start__ = 0x38800000; */
/* define symbol __ICFEDIT_region_BSRAM_end__   = 0x38800FFF; /\* 4KB BACKUP SRAM D3 *\/ */

define memory mem with size = 4G;
define region ROM_region      = mem:[from __ICFEDIT_region_ROM_start__   to __ICFEDIT_region_ROM_end__];
define region RAM_region      = mem:[from __ICFEDIT_region_RAM_start__   to __ICFEDIT_region_RAM_end__];

define block CSTACK    with alignment = 8, size = __ICFEDIT_size_cstack__   { };

initialize by copy { readwrite };
do not initialize  { section .noinit };

place at address mem:__ICFEDIT_intvec_start__ { readonly section .intvec };

place in ROM_region   { readonly };
place in RAM_region   { readwrite, last block CSTACK};