关于IAR for ARM的.icf文件

wotyndal

        用IAR EWARM开发S3C2440A裸机程序，程序下载到Nand Flash，想实现程序先在内部4KB RAM中运行初始化代码，将Nand Flash中的程序拷贝到外部SDRAM后，代码开始跳转到SDRAM中执行。
        据我研究，需要配置连接器配置文件（.icf），但是一直没有成功，请教大伙帮帮忙呀！如下是我的.icf文件：
/*###ICF### Section handled by ICF editor, don't touch! ****/
/*-Editor annotation file-*/
/* IcfEditorFile="$TOOLKIT_DIR$\config\ide\IcfEditor\a_v1_0.xml" */
/*-Specials-*/
define symbol __ICFEDIT_intvec_start__ = 0x0000;
/*-Memory Regions-*/
define symbol __ICFEDIT_region_ROM_start__ = 0x0000;
define symbol __ICFEDIT_region_ROM_end__   = 0x0FFFFFFF;
define symbol __ICFEDIT_region_RAM_start__ = 0x30000000;
define symbol __ICFEDIT_region_RAM_end__   = 0x33FFFFFF;
/*-Sizes-*/
define symbol __ICFEDIT_size_cstack__   = 0x2000;
define symbol __ICFEDIT_size_svcstack__ = 0x100;
define symbol __ICFEDIT_size_irqstack__ = 0x100;
define symbol __ICFEDIT_size_fiqstack__ = 0x100;
define symbol __ICFEDIT_size_undstack__ = 0x100;
define symbol __ICFEDIT_size_abtstack__ = 0x100;
define symbol __ICFEDIT_size_heap__     = 0x8000;
/**** End of ICF editor section. ###ICF###*/


/* Internal RAM symbol define ------------------------------------------------*/
/* Internal RAM symbol define ------------------------------------------------*/
/*-Specials-*/
define symbol __IRAM_intvec_start__ = 0x0000;
/*-Memory Regions-*/
define symbol __IRAM_region_ROM_start__ = 0x0000;
define symbol __IRAM_region_ROM_end__   = 0x02000000;
define symbol __IRAM_region_RAM_start__ = 0x0000;
define symbol __IRAM_region_RAM_end__   = 0x1000;
/*-Sizes-*/
define symbol __IRAM_size_cstack__   = 0x10;
define symbol __IRAM_size_svcstack__ = 0x8;
define symbol __IRAM_size_irqstack__ = 0x8;
define symbol __IRAM_size_fiqstack__ = 0x8;
define symbol __IRAM_size_undstack__ = 0x8;
define symbol __IRAM_size_abtstack__ = 0x8;
define symbol __IRAM_size_heap__     = 0x40;
/* Internal RAM symbol define --------------------END-------------------------*/
/* Internal RAM symbol define --------------------END-------------------------*/


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 SVC_STACK with alignment = 8, size = __ICFEDIT_size_svcstack__ { };
define block IRQ_STACK with alignment = 8, size = __ICFEDIT_size_irqstack__ { };
define block FIQ_STACK with alignment = 8, size = __ICFEDIT_size_fiqstack__ { };
define block UND_STACK with alignment = 8, size = __ICFEDIT_size_undstack__ { };
define block ABT_STACK with alignment = 8, size = __ICFEDIT_size_abtstack__ { };
define block HEAP      with alignment = 8, size = __ICFEDIT_size_heap__     { };

define region IRAM_RAM_region   = mem:[from __IRAM_region_RAM_start__   to __IRAM_region_RAM_end__];

define block IRAM_CSTACK    with alignment = 8, size = __IRAM_size_cstack__   { };
define block IRAM_SVC_STACK with alignment = 8, size = __IRAM_size_svcstack__ { };
define block IRAM_IRQ_STACK with alignment = 8, size = __IRAM_size_irqstack__ { };
define block IRAM_FIQ_STACK with alignment = 8, size = __IRAM_size_fiqstack__ { };
define block IRAM_UND_STACK with alignment = 8, size = __IRAM_size_undstack__ { };
define block IRAM_ABT_STACK with alignment = 8, size = __IRAM_size_abtstack__ { };
define block IRAM_HEAP      with alignment = 8, size = __IRAM_size_heap__     { };


initialize by copy { readwrite };
//initialize by copy with packing = none { section __DLIB_PERTHREAD }; // Required in a multi-threaded application
do not initialize  { section .noinit };

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

place at start of ROM_region { readonly section .cstart }; // Place Startup Code at start of ROM
place in          ROM_region { readonly };                 // Place Other Code in ROM

place in IRAM_RAM_region     { readwrite section .cstart,  // Place Startup readwrite section in Internal RAM
                               block IRAM_CSTACK, block IRAM_SVC_STACK, block IRAM_IRQ_STACK, block IRAM_FIQ_STACK,
                               block IRAM_UND_STACK, block IRAM_ABT_STACK, block IRAM_HEAP };
place in      RAM_region     { readwrite,                  // Place Other readwrite section in External SDRAM
                               block CSTACK, block SVC_STACK, block IRQ_STACK, block FIQ_STACK,
                               block UND_STACK, block ABT_STACK, block HEAP };

wotyndal

补充：我通过位于NOR Flash中的U-Boot启动，把代码下载到Nand Flash，2440没能达到预期的效果（LED亮）；通过J-Link调试发现PC一直没能跳转到SDRAM（0x30000000）中，虽然能够达到预期效果（LED亮）。