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chipKIT-application-32MX795F512-nobootloader.ld
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chipKIT-application-32MX795F512-nobootloader.ld
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/* Default linker script, for normal executables */
OUTPUT_FORMAT("elf32-tradlittlemips")
OUTPUT_ARCH(pic32mx)
ENTRY(_reset)
/*
* Provide for a minimum stack and heap size
* - _min_stack_size -/* Default linker script, for normal executables */
OUTPUT_FORMAT("elf32-tradlittlemips")
OUTPUT_ARCH(pic32mx)
ENTRY(_reset)
/*
* Provide for a minimum stack and heap size
* - _min_stack_size - represents the minimum space that must be made
* available for the stack. Can be overridden from
* the command line using the linker's --defsym option.
* - _min_heap_size - represents the minimum space that must be made
* available for the heap. Can be overridden from
* the command line using the linker's --defsym option.
*/
EXTERN (_min_stack_size _min_heap_size)
PROVIDE(_min_stack_size = 0x800) ;
PROVIDE(_min_heap_size = 0x800) ;
/*************************************************************************
* Processor-specific object file. Contains SFR definitions.
*************************************************************************/
INPUT("processor.o")
/*************************************************************************
* Memory Regions
*
* Memory regions without attributes cannot be used for orphaned sections.
* Only sections specifically assigned to these regions can be allocated
* into these regions.
*************************************************************************/
MEMORY
{
exception_mem : ORIGIN = 0x9D000000, LENGTH = 0x1000
kseg0_program_mem (rx) : ORIGIN = 0x9D001000, LENGTH = 0x7E000
kseg0_eeprom_mem : ORIGIN = 0x9D07F000, LENGTH = 0x1000
kseg0_boot_mem : ORIGIN = 0x9FC00490, LENGTH = 0x970
kseg1_boot_mem : ORIGIN = 0xBFC00000, LENGTH = 0x490
debug_exec_mem : ORIGIN = 0xBFC02000, LENGTH = 0xFF0
config3 : ORIGIN = 0xBFC02FF0, LENGTH = 4
config2 : ORIGIN = 0xBFC02FF4, LENGTH = 4
config1 : ORIGIN = 0xBFC02FF8, LENGTH = 4
config0 : ORIGIN = 0xBFC02FFC, LENGTH = 4
kseg1_data_mem (w!x) : ORIGIN = 0xA0000000, LENGTH = 0x20000
sfrs : ORIGIN = 0xBF800000, LENGTH = 0x100000
configsfrs : ORIGIN = 0xBFC02FF0, LENGTH = 0x10
}
/*************************************************************************
* Memory Address Equates
*************************************************************************/
_ebase_address = ORIGIN(exception_mem);
_IMAGE_PTR_TABLE = _ebase_address + 0x0F8;
_IMAGE_HEADER_ADDR = _ebase_address + 0x0FC;
_GEN_EXCPT_ADDR = _ebase_address + 0x180;
_RESET_ADDR = ORIGIN(kseg1_boot_mem);
_EEPROM_ADDR = ORIGIN(kseg0_eeprom_mem);
_BEV_EXCPT_ADDR = 0xBFC00380;
_DBG_EXCPT_ADDR = 0xBFC00480;
_DBG_CODE_ADDR = ORIGIN(debug_exec_mem);
/*************************************************************************
* Bootloader program directives.
*
* _IMAGE_TYPE
*
* image type:
*/
_imageReserved = 0x00000000 ;
_imageMPIDE = 0x00000001 ; /* This is a normal MPIDE sketch */
_imageBootFlashBootloader = 0x00000002 ; /* This is a boot flash bootloader */
_imageProgramFlashBootloader = 0x00000004 ; /* This is a program flash bootloader */
_imageSplitFlashBootloader = 0x00000008 ; /* This has bootloader code in both boot and program flash */
/*
* Instructions for the bootloader
*/
_imageFullFlashEraseLess4KEEProm = 0x00010000 ; /* The original bootloader method of erasing all of program flash except the last 4K reserved for eeprom */
_imageJustInTimeFlashErase = 0x00020000 ; /* Only flash pages written too needed by the sketch is erased */
_imageLinkerSpecifiedFlashErase = 0x00040000 ; /* The linker defines the flash range to erase */
_imageFullFlashErase = 0x00080000 ; /* All of flash is erased */
_imageExecutionJumpAddress = 0x01000000 ; /* the bootloader will jump to the execution jump address immediately after programming */
_imageExecutionJumpToFirstInFlash = 0x02000000 ; /* the bootloader will jump to the first sketch loaded in flash ignoring the execution jump address immediately after programming */
/*
* _IMAGE_FLASH_SIZE
*
* Typically _imageJustInTimeFlashErase is selected to just erase the pages
* of flash that code is written too; thus leaving all other flash pages untouched.
*
* If _imageLinkerSpecifiedFlashErase set, then the range
* starting from _ebase_address for _IMAGE_FLASH_SIZE bytes are erased.
*
* If _imageFullFlashErase is specified, than the whole flash
* as known by the bootloader will be erased. This will erase eeprom as well
*
* if _imageFullFlashEraseLess4KEEProm is set, all of flash less the last 4K is
* erased, this is the old default. This bit could be set to make a program flash bootloader
* erasing everything but the old flash. If NOTHING is set, this will be the default as this is the old behavior.
*
* _JUMP_ADDR
*
* This is the address that the bootloader will jump to start execution
* of the sketch. This is almost always _RESET_ADDR.
*
* However, you can specify an alternate entry execution point for example
* if you have alternate starup code that, say, shared
* the runtime with other sketches or needed some kind of specific handling
*
* Immediately after programming (avrdude upload) the bootloader will typically
* jump to the just loaded sketch, no matter where it was loaded in flash.
* _imageExecutionJumpToFirstInFlash will tell the bootloader to jump to the first
* sketch in flash even if the just loaded one is not at the beginning of flash.
* This is useful when programming sketches in slots of flash and then always
* jumping to the program-flash loader (vector sketch) as if the board was just reset.
* This bit does not effect jumping to a sketch already in flash after reset.
* As of today, after reset, the first program in flash will always be jumped to.
*
*************************************************************************/
_IMAGE_TYPE = _imageMPIDE | _imageJustInTimeFlashErase | _imageExecutionJumpAddress;
_IMAGE_FLASH_SIZE = LENGTH(exception_mem) + LENGTH(kseg0_program_mem);
_JUMP_ADDR = _RESET_ADDR;
SECTIONS
{
.config_BFC02FF0 : {
LONG(0x3AFFFFFF)
} > config3
.config_BFC02FF4 : {
LONG(0xFFF87ADA)
} > config2
.config_BFC02FF8 : {
LONG(0xFF6ACD7B)
} > config1
.config_BFC02FFC : {
LONG(0x7FFFFFFF)
} > config0
}
SECTIONS
{
.bev_excpt _BEV_EXCPT_ADDR :
{
KEEP(*(.bev_handler))
} > kseg1_boot_mem
.dbg_excpt _DBG_EXCPT_ADDR (NOLOAD) :
{
. += (DEFINED (_DEBUGGER) ? 0x8 : 0x0);
} > kseg1_boot_mem
.dbg_code _DBG_CODE_ADDR (NOLOAD) :
{
. += (DEFINED (_DEBUGGER) ? LENGTH(debug_exec_mem) : 0x0);
} > debug_exec_mem
/* Boot Sections */
.reset _RESET_ADDR :
{
KEEP(*(.reset))
} > kseg1_boot_mem
}
/* From here out every linker script is the same, so just include it */
/*INCLUDE "chipKIT-application-COMMON.ld"*/