【APM32F411V开发板测评】SRAM启动RT-Thread

/*

 * linker script for APM32F411 with GNU ld

 */



/* Program Entry, set to mark it as "used" and avoid gc */

MEMORY

{

    DATA (rxw) : ORIGIN = 0x20000000, LENGTH = 128k  /* 128KB sram */

}

ENTRY(Reset_Handler)

_system_stack_size = 0x200;



SECTIONS

{

    .text :

    {

        . = ALIGN(4);

        _stext = .;

        KEEP(*(.apm32_isr_vector))      /* Startup code */

        . = ALIGN(4);

        *(.text)                        /* remaining code */

        *(.text.*)                      /* remaining code */

        *(.rodata)                      /* read-only data (constants) */

        *(.rodata*)

        *(.glue_7)

        *(.glue_7t)

        *(.gnu.linkonce.t*)



        /* section information for finsh shell */

        . = ALIGN(4);

        __fsymtab_start = .;

        KEEP(*(FSymTab))

        __fsymtab_end = .;

        . = ALIGN(4);

        __vsymtab_start = .;

        KEEP(*(VSymTab))

        __vsymtab_end = .;

        . = ALIGN(4);



        /* section information for initial. */

        . = ALIGN(4);

        __rt_init_start = .;

        KEEP(*(SORT(.rti_fn*)))

        __rt_init_end = .;

        . = ALIGN(4);



        . = ALIGN(4);

        _etext = .;

    } > DATA



    /* .ARM.exidx is sorted, so has to go in its own output section.  */

    __exidx_start = .;

    .ARM.exidx :

    {

        *(.ARM.exidx* .gnu.linkonce.armexidx.*)



        /* This is used by the startup in order to initialize the .data secion */

        _sidata = .;

        _start_address_init_data = .;

    } > DATA

    __exidx_end = .;



    /* .data section which is used for initialized data */



    .data :

    {

        . = ALIGN(4);

        /* This is used by the startup in order to initialize the .data secion */

        _sdata = . ;

        _start_address_data = .;



        *(.data)

        *(.data.*)

        *(.gnu.linkonce.d*)



        . = ALIGN(4);

        /* This is used by the startup in order to initialize the .data secion */

        _edata = . ;

        _end_address_data = .;

    } >DATA



    .stack :

    {

        . = . + _system_stack_size;

        . = ALIGN(4);

        _estack = .;

        _end_stack = .;

    } >DATA



    __bss_start = .;

    _start_address_bss = .;

    .bss :

    {

        . = ALIGN(4);

        /* This is used by the startup in order to initialize the .bss secion */

        _sbss = .;



        *(.bss)

        *(.bss.*)

        *(COMMON)



        . = ALIGN(4);

        /* This is used by the startup in order to initialize the .bss secion */

        _ebss = . ;



        *(.bss.init)

    } > DATA

    __bss_end = .;

    _end_address_bss = .;



    _end = .;



    /* Stabs debugging sections.  */

    .stab          0 : { *(.stab) }

    .stabstr       0 : { *(.stabstr) }

    .stab.excl     0 : { *(.stab.excl) }

    .stab.exclstr  0 : { *(.stab.exclstr) }

    .stab.index    0 : { *(.stab.index) }

    .stab.indexstr 0 : { *(.stab.indexstr) }

    .comment       0 : { *(.comment) }

    /* DWARF debug sections.

     * Symbols in the DWARF debugging sections are relative to the beginning

     * of the section so we begin them at 0.  */

    /* DWARF 1 */

    .debug          0 : { *(.debug) }

    .line           0 : { *(.line) }

    /* GNU DWARF 1 extensions */

    .debug_srcinfo  0 : { *(.debug_srcinfo) }

    .debug_sfnames  0 : { *(.debug_sfnames) }

    /* DWARF 1.1 and DWARF 2 */

    .debug_aranges  0 : { *(.debug_aranges) }

    .debug_pubnames 0 : { *(.debug_pubnames) }

    /* DWARF 2 */

    .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }

    .debug_abbrev   0 : { *(.debug_abbrev) }

    .debug_line     0 : { *(.debug_line) }

    .debug_frame    0 : { *(.debug_frame) }

    .debug_str      0 : { *(.debug_str) }

    .debug_loc      0 : { *(.debug_loc) }

    .debug_macinfo  0 : { *(.debug_macinfo) }

    /* SGI/MIPS DWARF 2 extensions */

    .debug_weaknames 0 : { *(.debug_weaknames) }

    .debug_funcnames 0 : { *(.debug_funcnames) }

    .debug_typenames 0 : { *(.debug_typenames) }

    .debug_varnames  0 : { *(.debug_varnames) }

}

diff --git a/bsp/apm32/apm32f411v-tinyboard/rtconfig.py b/bsp/apm32/apm32f411v-tinyboard/r

tconfig.py

index 37b0d21d3a..e354b55a49 100644

--- a/bsp/apm32/apm32f411v-tinyboard/rtconfig.py

+++ b/bsp/apm32/apm32f411v-tinyboard/rtconfig.py

@@ -46,7 +46,7 @@ if PLATFORM == 'gcc':

     DEVICE = ' -mcpu=cortex-m4 -mthumb -mfpu=fpv4-sp-d16 -mfloat-abi=hard -ffunction-sect

ions -fdata-sections'

     CFLAGS = DEVICE + ' -Dgcc'

     AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp -Wa,-mimplicit-it=thumb '

-    LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rt-thread.map,-cref,-u,Reset_Handler -T board/linker_scripts/link.lds'

+    LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=rt-thread.map,-cref,-u,Reset_Handler -T board/linker_scripts/link_ram.lds'



     CPATH = ''

     LPATH = ''

--- a/bsp/apm32/libraries/APM32F4xx_Library/Device/Geehy/APM32F4xx/Source/system_apm32f4xx.c

+++ b/bsp/apm32/libraries/APM32F4xx_Library/Device/Geehy/APM32F4xx/Source/system_apm32f4xx.c

@@ -43,7 +43,7 @@

 /* #define DATA_IN_ExtSRAM */



 /* Uncomment the following line if you need to relocate your vector Table in Internal SRAM. */

-/* #define VECT_TAB_SRAM */

+#define VECT_TAB_SRAM