STM32H743 网口调试

发布于 2020-05-29 15:39:41 浏览：2178 订阅该版

参照网上帖子移植LWIP,网口还是没有调通，网上来求助，下边代码里attribute((section(“.RxDecripSection”))))，这个section需要在链接脚本里定义吗？该怎么写呢？我对链接脚本不了解，用的是rtthread-stdio编译。

elif defined ( GNUC ) / GNU Compiler /

ETHDMADescTypeDef DMARxDscrTab[ETHRXDESCCNT] attribute((section(“.RxDecripSection”))); / Ethernet Rx DMA Descriptors /
ETH_DMADescTypeDef DMATxDscrTab[ETH_TX_DESC_CNT] __attribute((section(“.TxDecripSection”))); / Ethernet Tx DMA Descriptors /
uint8_t Rx_Buff[ETH_RX_DESC_CNT][ETH_RX_BUFFER_SIZE] __attribute((section(“.RxArraySection”))); / Ethernet Receive Buffers /

endif

/*

linker script for STM32H743II with GNU ld
*/

/ Program Entry, set to mark it as “used” and avoid gc /
MEMORY
{
ROM (rx) : ORIGIN =0x8000000,LENGTH =2048k
RAM (rw) : ORIGIN =0x24000000,LENGTH =512k
}
ENTRY(Reset_Handler)
_system_stack_size = 0x200;

SECTIONS
{
.text :
{
. = ALIGN(4);
_stext = .;
KEEP((.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 = .;
    /* section information for utest */
    . = ALIGN(4);
    __rt_utest_tc_tab_start = .;
    KEEP(*(UtestTcTab))
    __rt_utest_tc_tab_end = .;
    /* section information for at server */
    . = ALIGN(4);
    __rtatcmdtab_start = .;
    KEEP(*(RtAtCmdTab))
    __rtatcmdtab_end = .;
    . = ALIGN(4);
    /* section information for initial. */
    . = ALIGN(4);
    __rt_init_start = .;
    KEEP(*(SORT(.rti_fn*)))
    __rt_init_end = .;
    . = ALIGN(4);
    PROVIDE(__ctors_start__ = .);
    KEEP (*(SORT(.init_array.*)))
    KEEP (*(.init_array))
    PROVIDE(__ctors_end__ = .);
    . = ALIGN(4);
    _etext = .;
} > ROM = 0
/* .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 = .;
} > ROM
__exidx_end = .;
/* .data section which is used for initialized data */
.data : AT (_sidata)
{
    . = ALIGN(4);
    /* This is used by the startup in order to initialize the .data secion */
    _sdata = . ;
    *(.data)
    *(.data.*)
    *(.gnu.linkonce.d*)
    PROVIDE(__dtors_start__ = .);
    KEEP(*(SORT(.dtors.*)))
    KEEP(*(.dtors))
    PROVIDE(__dtors_end__ = .);
    . = ALIGN(4);
    /* This is used by the startup in order to initialize the .data secion */
    _edata = . ;
} >RAM
.stack : 
{
    . = ALIGN(4);
    _sstack = .;
    . = . + _system_stack_size;
    . = ALIGN(4);
    _estack = .;
} >RAM
__bss_start = .;
.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)
} > RAM
__bss_end = .;
_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) }