ICF文件

定义区间，有两种方式

define region FLASH2 = [from 0x87800000 to 0x87FFFFFF];
define region RAM2   = [from 0x80000000 to 0x8003FFFF];

define region FLASH2 = [from 0x87800000 size 0x200000];
define region RAM2   = [from 0x80000000 size 0x40000];

[from 0x20000000 size 128k]