Hi,
I have LPCXpresso54608 evaluation board ( OM13092 ). I use Mcuxpresso Ide and sdk examples. I chose one of sdk examples and wanted to relocate all data in external sdram. I added pin_mux.c settings to use sdram and used a function to init sdram in main function ( BOARD_InitSDRAM() ). Then, I built and released project.
I got a linker script file ( driver_examples_emc_emc_sdram_Release.ld ) at the location
"\MCUXpressoIDE_10.1.1_606\workspace\driver_examples_emc_emc_sdram\Release".
Opened it and arranged little bit and activated it from Project menu. Project>Properties>C/C++ Build>Settings>Tool Settings>MCU Linker>Managed Linker Script. Deactivated Manage linker scripts and selected my own linker script and its path.
I know almost nothing about linker scripts file so I might(definitely did) make a mistake. and then I see datas and others files located in Board_Sdram. But I could not press 'Resume Debug Session' button because it was unvisible. I pressed button 'Terminate All debug Sessions' and I got a new error window I made a mistake somewhere and I am asking where I might make a mistake ?
What did I do in Release.ld file? Here it is.( just deleted all 'SRAM_0_1_2_3' texts and wrote 'BOARD_SDRAM' instead.)
/*
* GENERATED FILE - DO NOT EDIT
* (c) Code Red Technologies Ltd, 2008-2013
* (c) NXP Semiconductors 2013-2018
* Generated linker script file for LPC54608J512
* Created from linkscript.ldt by FMCreateLinkLibraries
* Using Freemarker v2.3.23
* MCUXpresso IDE v10.1.1 [Build 606] [2018-01-02] on Mar 14, 2018 1:57:33 PM
*/
INCLUDE "mmdriver_examples_emc_emc_sdram_Release_library.ld"
INCLUDE "mmdriver_examples_emc_emc_sdram_Release_memory.ld"
ENTRY(ResetISR)
SECTIONS
{
.text_Flash2 : ALIGN(4)
{
FILL(0xff)
*(.text_Flash2*) /* for compatibility with previous releases */
*(.text_BOARD_FLASH*) /* for compatibility with previous releases */
*(.text.$Flash2*)
*(.text.$BOARD_FLASH*) *(.rodata.$Flash2*)
*(.rodata.$BOARD_FLASH*) } > BOARD_FLASH
/* MAIN TEXT SECTION */
.text : ALIGN(4)
{
FILL(0xff)
__vectors_start__ = ABSOLUTE(.) ;
KEEP(*(.isr_vector))
/* Global Section Table */
. = ALIGN(4) ;
__section_table_start = .;
__data_section_table = .;
LONG(LOADADDR(.data));
LONG( ADDR(.data));
LONG( SIZEOF(.data));
LONG(LOADADDR(.data_RAM2));
LONG( ADDR(.data_RAM2));
LONG( SIZEOF(.data_RAM2));
LONG(LOADADDR(.data_RAM3));
LONG( ADDR(.data_RAM3));
LONG( SIZEOF(.data_RAM3));
LONG(LOADADDR(.data_RAM4));
LONG( ADDR(.data_RAM4));
LONG( SIZEOF(.data_RAM4));
__data_section_table_end = .;
__bss_section_table = .;
LONG( ADDR(.bss));
LONG( SIZEOF(.bss));
LONG( ADDR(.bss_RAM2));
LONG( SIZEOF(.bss_RAM2));
LONG( ADDR(.bss_RAM3));
LONG( SIZEOF(.bss_RAM3));
LONG( ADDR(.bss_RAM4));
LONG( SIZEOF(.bss_RAM4));
__bss_section_table_end = .;
__section_table_end = . ;
/* End of Global Section Table */
*(.after_vectors*)
} >PROGRAM_FLASH
.text : ALIGN(4)
{
*(.text*)
*(.rodata .rodata.* .constdata .constdata.*)
. = ALIGN(4);
} > PROGRAM_FLASH
/*
* for exception handling/unwind - some Newlib functions (in common
* with C++ and STDC++) use this.
*/
.ARM.extab : ALIGN(4)
{
*(.ARM.extab* .gnu.linkonce.armextab.*)
} > PROGRAM_FLASH
__exidx_start = .;
.ARM.exidx : ALIGN(4)
{
*(.ARM.exidx* .gnu.linkonce.armexidx.*)
} > PROGRAM_FLASH
__exidx_end = .;
_etext = .;
/* USB_RAM */
.m_usb_data (NOLOAD) :
{
*(m_usb_global)
} > USB_RAM
/* DATA section for SRAMX */
.data_RAM2 : ALIGN(4)
{
FILL(0xff)
PROVIDE(__start_data_RAM2 = .) ;
*(.ramfunc.$RAM2)
*(.ramfunc.$SRAMX)
*(.data.$RAM2*)
*(.data.$SRAMX*)
. = ALIGN(4) ;
PROVIDE(__end_data_RAM2 = .) ;
} > SRAMX AT>PROGRAM_FLASH
/* DATA section for USB_RAM */
.data_RAM3 : ALIGN(4)
{
FILL(0xff)
PROVIDE(__start_data_RAM3 = .) ;
*(.ramfunc.$RAM3)
*(.ramfunc.$USB_RAM)
*(.data.$RAM3*)
*(.data.$USB_RAM*)
. = ALIGN(4) ;
PROVIDE(__end_data_RAM3 = .) ;
} > USB_RAM AT>PROGRAM_FLASH
/* DATA section for BOARD_SDRAM */
.data_RAM4 : ALIGN(4)
{
FILL(0xff)
PROVIDE(__start_data_RAM4 = .) ;
*(.ramfunc.$RAM4)
*(.ramfunc.$BOARD_SDRAM)
*(.data.$RAM4*)
*(.data.$BOARD_SDRAM*)
. = ALIGN(4) ;
PROVIDE(__end_data_RAM4 = .) ;
} > BOARD_SDRAM AT>PROGRAM_FLASH
/* MAIN DATA SECTION */
.uninit_RESERVED : ALIGN(4)
{
KEEP(*(.bss.$RESERVED*))
. = ALIGN(4) ;
_end_uninit_RESERVED = .;
} > BOARD_SDRAM
/* Main DATA section (BOARD_SDRAM) */
.data : ALIGN(4)
{
FILL(0xff)
_data = . ;
*(vtable)
*(.ramfunc*)
*(.data*)
. = ALIGN(4) ;
_edata = . ;
} > BOARD_SDRAM AT>PROGRAM_FLASH
/* BSS section for SRAMX */
.bss_RAM2 : ALIGN(4)
{
PROVIDE(__start_bss_RAM2 = .) ;
*(.bss.$RAM2*)
*(.bss.$SRAMX*)
. = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
PROVIDE(__end_bss_RAM2 = .) ;
} > SRAMX
/* BSS section for USB_RAM */
.bss_RAM3 : ALIGN(4)
{
PROVIDE(__start_bss_RAM3 = .) ;
*(.bss.$RAM3*)
*(.bss.$USB_RAM*)
. = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
PROVIDE(__end_bss_RAM3 = .) ;
} > USB_RAM
/* BSS section for BOARD_SDRAM */
.bss_RAM4 : ALIGN(4)
{
PROVIDE(__start_bss_RAM4 = .) ;
*(.bss.$RAM4*)
*(.bss.$BOARD_SDRAM*)
. = ALIGN (. != 0 ? 4 : 1) ; /* avoid empty segment */
PROVIDE(__end_bss_RAM4 = .) ;
} > BOARD_SDRAM
/* MAIN BSS SECTION */
.bss : ALIGN(4)
{
_bss = .;
*(.bss*)
*(COMMON)
. = ALIGN(4) ;
_ebss = .;
PROVIDE(end = .);
} > BOARD_SDRAM
/* NOINIT section for SRAMX */
.noinit_RAM2 (NOLOAD) : ALIGN(4)
{
*(.noinit.$RAM2*)
*(.noinit.$SRAMX*)
. = ALIGN(4) ;
} > SRAMX
/* NOINIT section for USB_RAM */
.noinit_RAM3 (NOLOAD) : ALIGN(4)
{
*(.noinit.$RAM3*)
*(.noinit.$USB_RAM*)
. = ALIGN(4) ;
} > USB_RAM
/* NOINIT section for BOARD_SDRAM */
.noinit_RAM4 (NOLOAD) : ALIGN(4)
{
*(.noinit.$RAM4*)
*(.noinit.$BOARD_SDRAM*)
. = ALIGN(4) ;
} > BOARD_SDRAM
/* DEFAULT NOINIT SECTION */
.noinit (NOLOAD): ALIGN(4)
{
_noinit = .;
*(.noinit*)
. = ALIGN(4) ;
_end_noinit = .;
} > BOARD_SDRAM
/* Reserve and place Heap within memory map */
_HeapSize = 0x1000;
.heap : ALIGN(4)
{
_pvHeapStart = .;
. += _HeapSize;
. = ALIGN(4);
_pvHeapLimit = .;
} > BOARD_SDRAM
_StackSize = 0x1000;
/* Reserve space in memory for Stack */
.heap2stackfill :
{
. += _StackSize;
} > BOARD_SDRAM
/* Locate actual Stack in memory map */
.stack ORIGIN(BOARD_SDRAM) + LENGTH(BOARD_SDRAM) - _StackSize - 0: ALIGN(4)
{
_vStackBase = .;
. = ALIGN(4);
_vStackTop = . + _StackSize;
} > BOARD_SDRAM
/* ## Create checksum value (used in startup) ## */
PROVIDE(__valid_user_code_checksum = 0 -
(_vStackTop
+ (ResetISR + 1)
+ (NMI_Handler + 1)
+ (HardFault_Handler + 1)
+ (( DEFINED(MemManage_Handler) ? MemManage_Handler : 0 ) + 1) /* MemManage_Handler may not be defined */
+ (( DEFINED(BusFault_Handler) ? BusFault_Handler : 0 ) + 1) /* BusFault_Handler may not be defined */
+ (( DEFINED(UsageFault_Handler) ? UsageFault_Handler : 0 ) + 1) /* UsageFault_Handler may not be defined */
) );
/* Provide basic symbols giving location and size of main text
* block, including initial values of RW data sections. Note that
* these will need extending to give a complete picture with
* complex images (e.g multiple Flash banks).
*/
_image_start = LOADADDR(.text);
_image_end = LOADADDR(.data) + SIZEOF(.data);
_image_size = _image_end - _image_start;
}
