RT1052开发板分散加载文件问题

zam52013 · 发表于 2019-7-17 22:30:35

#define m_flash_config_start          0x60000000
#define m_flash_config_size          0x00001000

#define m_ivt_start                   0x60001000
#define m_ivt_size                   0x00001000

#define m_interrupts_start          0x60002000
#define m_interrupts_size          0x00000400

#define m_text_start                0x60002400
#define m_text_size                   0x01FFDC00

#define m_data_start                0x20000000
#define m_data_size                   0x00020000

#define m_data2_start                0x20200000
#define m_data2_size                0x00040000

LR_m_text m_interrupts_start m_text_start+m_text_size-m_interrupts_size { ; load region size_region
  VECTOR_ROM m_interrupts_start m_interrupts_size { ; load address = execution address
* (RESET,+FIRST)
  }
  ER_m_text m_text_start m_text_size { ; load address = execution address
* (InRoot$$Sections)
.ANY (+RO)
  }
  RW_m_data m_data_start m_data_size-Stack_Size-Heap_Size { ; RW data
.ANY (+RW +ZI)
* (NonCacheable.init)
* (NonCacheable)
  }
  ARM_LIB_HEAP +0 EMPTY Heap_Size { ; Heap region growing up
  }
  ARM_LIB_STACK m_data_start+m_data_size EMPTY -Stack_Size { ; Stack region growing down
  }
}

看到大部分的加载文件都是这样的，包括官网的，但是我发现这里只对m_data_start进行了分配并没有对m_data2_start进行分配，通过编译出来的文件查看，我的程序也全部分配到m_data_start空间，没有分配到其他的空间。
如果我按照如下分配就分配了相应的程序。
#define m_flash_config_start          0x60000000
#define m_flash_config_size          0x00001000

#define m_ivt_start                   0x60001000
#define m_ivt_size                   0x00001000

#define m_interrupts_start          0x60002000
#define m_interrupts_size          0x00000400

#define m_text_start                0x60002400
#define m_text_size                   0x01FFDC00

#define m_data_start                0x00000000
#define m_data_size                   0x00020000

#define m_data1_start                0x20000000
#define m_data2_size                   0x00020000

#define m_data2_start                0x20200000
#define m_data2_size                0x00040000

LR_m_text m_interrupts_start m_text_start+m_text_size-m_interrupts_size { ; load region size_region
  VECTOR_ROM m_interrupts_start m_interrupts_size { ; load address = execution address
* (RESET,+FIRST)
  }
  ER_m_text m_text_start m_text_size { ; load address = execution address
* (InRoot$$Sections)
.ANY (+RO)
  }
  RW_m_data m_data_start m_data_size-Stack_Size-Heap_Size { ; RW data
.ANY (+RW +ZI)
* (NonCacheable.init)
* (NonCacheable)
  }
RW_m_data m_data1_start m_data1_size { ; RW data
.ANY (+RW +ZI)
  }
RW_m_data m_data2_start m_data2_size { ; RW data
.ANY (+RW +ZI)
  }
  ARM_LIB_HEAP +0 EMPTY Heap_Size { ; Heap region growing up
  }
  ARM_LIB_STACK m_data_start+m_data_size EMPTY -Stack_Size { ; Stack region growing down
  }
}

这样分配能正常分配，itcm里也有数据，所有的ram也都利用起来的，但是运行程序有一部分有点不太正常，跑的是free-rtos。
@原子哥，帮忙解答一下。