设置到外部SDRAM

2万 · 2021-8-8 22:45

在 STM32F429 上，IAR 中如何将堆（HEAP）设置到外部SDRAM？

1万 · 2021-8-8 22:48

什么意思？不是很明白你说的什么，能再解释一下这个现象吗

2万 · 2021-8-8 22:51

搜索网上资料，对 icf 进行了调整，编译可以通过，但实际运行时死机，不知道哪位大师成功设置过
下面是我设置的icf内容：
/*###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;
define symbol __ICFEDIT_region_RAM_start__ = 0x20000000;
define symbol __ICFEDIT_region_RAM_end__    = 0x2003ffff;
define symbol __ICFEDIT_region_RAM1_start__ = 0xD0700000;
define symbol __ICFEDIT_region_RAM1_end__    = 0xD07fffff;
define symbol __ICFEDIT_region_CCMRAM_start__ = 0x10000000;
define symbol __ICFEDIT_region_CCMRAM_end__ = 0x1000FFFF;
/*-Sizes-*/
define symbol __ICFEDIT_size_cstack__ = 0x1000;
define symbol __ICFEDIT_size_heap__ = 0x80000;
/**** 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__] | mem:[from __ICFEDIT_region_RAM1_start__ to __ICFEDIT_region_RAM1_end__];
define region CCMRAM_region = mem:[from __ICFEDIT_region_CCMRAM_start__ to __ICFEDIT_region_CCMRAM_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 at address mem:__ICFEDIT_region_RAM_start__ { readwrite section .data };
place at address mem:__ICFEDIT_region_RAM1_start__ { readwrite section .bss };

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