The common approach is to make a const array that contains the appropriate values (initial SP, initial PC = adress of init code, addresses of the interrupt service routines) and use some compiler-dependant magic to force the linker to place this array at address 0.

An example in gcc (from my http://www.voti.nl/bmptk):

void (* const __vectors[ 8 ])(void) 
__attribute__ ((section(".vectors"))) = {
   (void (*)(void)) & __stack_end,  
   __startup,
   // interrupt verctors etc.
};

The __ attribute__ ((section(".vectors")) marks this array as part of a section called "vectors". The matching linkerscript ensures that that section is placed first in the flash memory:

MEMORY
{
   rom (rx)     : org = ROM_START, len = ROM_SIZE
   ram (rwx)    : org = RAM_START, len = RAM_SIZE
   nul (rwx)    : org = 0x20000000, len = 0k
}
. . . 
SECTIONS
{
   .text :
   {

       . = ALIGN(4);
       KEEP(*(.vectors));

In normal situations this is something that your tool vendor/builder/creator has done for you.

The common approach is to make a const array that contains the appropriate values (initial SP, initial PC = adress of init code, addresses of the interrupt service routines) and use some compiler-dependant magic to force the linker to place this array at address 0.

An example in gcc (from my http://www.voti.nl/bmptk):

void (* const __vectors[ 8 ])(void) 
__attribute__ ((section(".vectors"))) = {
   (void (*)(void)) & __stack_end,  
   __startup,
   // interrupt verctors etc.
};

The __ attribute__ ((section(".vectors"))) marks this array as part of a section called "vectors". The matching linkerscript ensures that that section is placed first in the flash memory:

MEMORY
{
   rom (rx)     : org = ROM_START, len = ROM_SIZE
   ram (rwx)    : org = RAM_START, len = RAM_SIZE
   nul (rwx)    : org = 0x20000000, len = 0k
}
. . . 
SECTIONS
{
   .text :
   {

       . = ALIGN(4);
       KEEP(*(.vectors));
       . . .
       # other sections come here  (= the rest of your code)

In normal situations this is something that your tool vendor/builder/creator has done for you.

The common approach is to make a const array that contains the appropriate values (initial SP, initial PC = adress of init code, addresses of the interrupt service routines) and use some compiler-dependant magic to force the linker to place this array at address 0.

An example in gcc (from my http://www.voti.nl/bmptk):

void (* const __vectors[ 8 ])(void) 
__attribute__ ((section(".vectors"))) = {
   (void (*)(void)) & __stack_end,  
   __startup,
   // interrupt verctors etc.
};

The __ attribute__ ((section(".vectors")) marks this array as part of a section called "vectors". The matching linkerscript ensures that that section is placed first in the flash memory:

MEMORY
{
   rom (rx)     : org = ROM_START, len = ROM_SIZE
   ram (rwx)    : org = RAM_START, len = RAM_SIZE
   nul (rwx)    : org = 0x20000000, len = 0k
}
. . . 
SECTIONS
{
   .text :
   {

       . = ALIGN(4);
       KEEP(*(.vectors));

In normal situations this is something that your tool venoder/builder/creator has done for you.

The common approach is to make a const array that contains the appropriate values (initial SP, initial PC = adress of init code, addresses of the interrupt service routines) and use some compiler-dependant magic to force the linker to place this array at address 0.

An example in gcc (from my http://www.voti.nl/bmptk):

void (* const __vectors[ 8 ])(void) 
__attribute__ ((section(".vectors"))) = {
   (void (*)(void)) & __stack_end,  
   __startup,
   // interrupt verctors etc.
};

The __ attribute__ ((section(".vectors")) marks this array as part of a section called "vectors". The matching linkerscript ensures that that section is placed first in the flash memory:

MEMORY
{
   rom (rx)     : org = ROM_START, len = ROM_SIZE
   ram (rwx)    : org = RAM_START, len = RAM_SIZE
   nul (rwx)    : org = 0x20000000, len = 0k
}
. . . 
SECTIONS
{
   .text :
   {

       . = ALIGN(4);
       KEEP(*(.vectors));

In normal situations this is something that your tool vendor/builder/creator has done for you.