How to initialize a constant inside the DATAEEPROM of a STM32L053 MCU.

[CZamb.2]

I'm trying to use this lines of code:

#define DATA_EEPROM_BASE_ADDRESS = 0x08080000;

const calibration_param_t parameters __attribute__((at(DATA_EEPROM_BASE_ADDRESS)));

but if I check in debug, the constant structure parameters is allocated inside the code flash (at the address 0x0800d4f8).

Should I add something to the linker script for example? in my .ld file I have this memory definition:

MEMORY

{

 RAM  (xrw)  : ORIGIN = 0x20000000,  LENGTH = 8K

 FLASH  (rx)  : ORIGIN = 0x08000000,  LENGTH = 64K

}

Flash ends at 0x08010000, that is lower than 0x08080000..could that be the problem? if yes, how to modify the script?

thank you

Cristiano

[CZamb.2]

I have found a solution by myself. I have modified the .ld file in order to add a section:

/* Memories definition */

MEMORY

{

 RAM  (xrw)  : ORIGIN = 0x20000000,  LENGTH = 8K

 FLASH  (rx)  : ORIGIN = 0x08000000,  LENGTH = 64K

 EEPROM (rx)  : ORIGIN = 0x08080000,  LENGTH = 2K

}

/* Sections */

SECTIONS

{

[....]

/* User_heap_stack section, used to check that there is enough "RAM" Ram type memory left */

 ._user_heap_stack :

 {

  . = ALIGN(8);

  PROVIDE ( end = . );

  PROVIDE ( _end = . );

  . = . + _Min_Heap_Size;

  . = . + _Min_Stack_Size;

  . = ALIGN(8);

 } >RAM

/* Added this section */

 .dataeeprom :

 {

  . = ALIGN(4);

  _sdataeeprom = .;    /* create a global symbol at data start */

  *(.dataeeprom)      /* .data sections */

  *(.dataeeprom*)     /* .data* sections */

*(.eeprom)      /* .data sections */

  *(.eeprom*)     /* .data* sections */

  . = ALIGN(4);

  _edataeeprom = .;    /* define a global symbol at data end */

 } >EEPROM AT> FLASH

[....]

and defining the constant this way:

const calibration_param_t calibration_parameters __attribute__((section(".eeprom"))) = {

it works...any idea if this is actually ok? I can't understand why I had to add two sections (dataeeprom and eeprom), as using section(".dataeeprom") was not working.

thank you

C.