[技术问答] 基于scatter file的代码分区操作

; *************************************************************

; *** Scatter-Loading Description File generated by uVision ***

; *************************************************************



LR_IROM1 0x08000000 0x00040000  {    ; load region size_region

  ER_IROM1 0x08000000 0x00006000  {  ; load address = execution address

   *.o (RESET, +First)

   *(InRoot$Sections)

   .ANY ;(+RO)

  }

  IRAM1 0x20000000 0x00004000  {  ; RW data

   .ANY (+RW +ZI)

  }

  IRAM2 0x20004000 0x00002000  {  ; RW data

   .ANY (pg_data1)

  }

  IRAM3 0x20006000 0x00002000  {  ; RW data (+RW +ZI)

   .ANY (pg_data2)

  }

}

LR_IROM2 0x08026000 0x00002000 {

  DATA_FLASH 0x08026010 FIXED 0x00001000  {  ; load address = execution address

   * (flash_data) 

  }

}

/* variable in IRAM1 region */

uint8_t ZI_data_IRAM1[10];

uint8_t RW_data_IRAM1[10]={0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};

/* const variable in ER_ROM1 region */

const uint8_t RO_dataROM1[10]={0,1,2,3,4,5,6,7,8,9};

/* variable in IRAM2 region */

#pragma arm section rwdata = "pg_data1"

uint8_t rw_data_IRAM2[10] = {0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0x55};

#pragma arm section rwdata

#pragma arm section zidata = "pg_data1"

uint8_t zi_data_IRAM2[10];

#pragma arm section zidata

/* variable in IRAM3 region */

#pragma arm section rwdata = "pg_data2"

uint8_t rw_data_IRAM3[10] = {0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa, 0xaa};

#pragma arm section rwdata

#pragma arm section zidata = "pg_data2"

uint8_t zi_data_IRAM3[10];

#pragma arm section zidata



/* const variable in DATA_FLASH region */

#pragma arm section rodata = "flash_data"

const uint8_t ro_data_flash[10] = {0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01};

#pragma arm section rodata