2020-07-20 STM32 .icf File Note

STM32 IAR .icf File is the device configuration file

It descriptes the flash and sram size specification

/*###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__     = 0x0803FFFF;
define symbol __ICFEDIT_region_RAM_start__   = 0x20000000;
define symbol __ICFEDIT_region_RAM_end__     = 0x2000BFFF;
/*-Sizes-*/
define symbol __ICFEDIT_size_cstack__   = 0x400;
define symbol __ICFEDIT_size_heap__     = 0x200;
/**** End of ICF editor section. ###ICF###*/


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__   { };
define block HEAP      with alignment = 8, size = __ICFEDIT_size_heap__     { };

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,
                        block CSTACK, block HEAP };

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