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STM32H743,环境为IAR,程序采用XIP方式,程序在QSPI中。(1).readwrite 数据运行地址在内部SRAM中,__iar_data_init3将.readwrite 数据从QSPI中拷贝到内部SRAM中没有问题,程序可正常执行,其它分配在SDRAM中的数据可正常读写。
define symbol __ICFEDIT_intvec_start__ = 0x90000000;
/*-Memory Regions-*/
define symbol __ICFEDIT_region_ROM_start__ = 0x90000000;
define symbol __ICFEDIT_region_ROM_end__ = 0x97FFFFFF;
define symbol __ICFEDIT_region_RAM_start__ = 0x24000000;
define symbol __ICFEDIT_region_RAM_end__ = 0x2407FFFF;
/*-Sizes-*/
define symbol __ICFEDIT_size_cstack__ = 0x2000;
define symbol __ICFEDIT_size_heap__ = 0x2000;
/**** 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 };
(2).readwrite 数据运行地址在SDRAM中,__iar_data_init3将.readwrite 数据从SPI中拷贝到SDRAM中出现HardFault_Handler。请问下是什么原因?
define symbol __ICFEDIT_intvec_start__ = 0x90000000;
/*-Memory Regions-*/
define symbol __ICFEDIT_region_ROM_start__ = 0x90000000;
define symbol __ICFEDIT_region_ROM_end__ = 0x97FFFFFF;
define symbol __ICFEDIT_region_RAM_start__ = 0xC0000000;
define symbol __ICFEDIT_region_RAM_end__ = 0xC07FFFFF;;
/*-Sizes-*/
define symbol __ICFEDIT_size_cstack__ = 0x2000;
define symbol __ICFEDIT_size_heap__ = 0x2000;
/**** 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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