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  4. YT-LINK并不怎么好用，受限制比较大，以下是我的解决方案

YT-LINK并不怎么好用，受限制比较大，以下是我的解决方案

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  • snikeguoS 离线
    snikeguoS 离线
    snikeguo
    写于 最后由 snikeguo 编辑
    #1

    YTLINK这个初衷是为了降低开发者开发难度，但是汽车行业 现在都有BOOT，对于连接件脚本里逻辑代码，或者用户自定义导出符号，就显得力不从心。
    比如我的工程是BM BT APP三个工程，打算复用链接脚本：我在COnfig TOOL上折腾了许久，还是不行，最后没办法放弃了，开始自定义脚本。以下是我工程的链接脚本，放出来：

    #!armclang -E --target=arm-arm-none-eabi -mcpu=cortex-m7 -xc



#define __BootManagerImageStartAddress__ 0x2000000
#define __BootManagerImageMaxSize__  128*1024

#define __BootImageStartAddress__    __BootManagerImageStartAddress__ + __BootManagerImageMaxSize__ + 0x800	/*这0x800是给打包工具留的*/
#define __BootImageMaxSize__  256*1024 -0x800

#define __AppImageStartAddress__   __BootImageStartAddress__ + __BootImageMaxSize__ +0x800
#define __AppImageMaxSize__   (1024*1024) - __AppImageStartAddress__ - 0x800
#define __AppImageMaxEndAddress__  __AppImageStartAddress__ + __AppImageMaxSize__ 


#define __CodeFlashStartAddress__  __AppImageStartAddress__
#define __CodeFlashMaxSize__  __AppImageMaxSize__

BootManagerImage __BootManagerImageStartAddress__
{
	BootManagerImageStart __BootManagerImageStartAddress__ FIXED EMPTY 0
	{
	
	}
}

BootImage __BootImageStartAddress__
{
	BootImageStart __BootImageStartAddress__ FIXED EMPTY 0
	{
	
	}
}


LR_BVT_0 __CodeFlashStartAddress__
{

        AppImageStart __CodeFlashStartAddress__ FIXED EMPTY 0
        {
        }
        bvt_header_region_start AlignExpr(+0,4) FIXED EMPTY 0
        {
        }
        bvt_header_region +0 NOCOMPRESS
        {
                *(.bvt_header)
        }
        bvt_header_region_end +0  EMPTY 0
        {
        }
        sb_config_group_region_start AlignExpr(+0,4) FIXED EMPTY 0
        {
        }
        sb_config_group_region +0 NOCOMPRESS
        {
                *(.sb_config_group)
        }
        sb_config_group_region_end +0  EMPTY 0
        {
        }
        sb_config_section_region_start AlignExpr(+0,16) FIXED EMPTY 0
        {
        }
        sb_config_section_region +0 NOCOMPRESS
        {
                *(.sb_config_section)
        }
        sb_config_section_region_end +0  EMPTY 0
        {
        }
        sb_cmac_region_start AlignExpr(+0,16) FIXED EMPTY 0
        {
        }
        sb_cmac_region +0 NOCOMPRESS
        {
                *(.sb_cmac)
        }
        sb_cmac_region_end +0  EMPTY 0
        {
        }
        BVT_end +0 EMPTY 0
        {
        }
}
ScatterAssert(ImageLength(LR_BVT_0) <= 0x800)

LR_IVT_0 __CodeFlashStartAddress__ + 0x800
{

        IVT_start __CodeFlashStartAddress__ + 0x800 FIXED EMPTY 0
        {
        }
        isr_vector_region_start +0 FIXED EMPTY 0
        {
        }
        isr_vector_region +0 NOCOMPRESS
        {
                *(.isr_vector)
        }
        isr_vector_region_end +0  EMPTY 0
        {
        }
        IVT_end +0 EMPTY 0
        {
        }
}
ScatterAssert(ImageLength(LR_IVT_0) <= 1024)

LR_TEXT_0 __CodeFlashStartAddress__ + 0xC00
{

        TEXT_start __CodeFlashStartAddress__ + 0xC00 FIXED EMPTY 0
        {
        }
        text_region_start +0 FIXED EMPTY 0
        {
        }
        text_region +0 NOCOMPRESS
        {
                *(.text*)
        }
        text_region_end +0  EMPTY 0
        {
        }
        rodata_region_start +0 FIXED EMPTY 0
        {
        }
        rodata_region +0 NOCOMPRESS
        {
                *(.rodata*)
        }
        rodata_region_end +0  EMPTY 0
        {
        }
        TEXT_end +0 EMPTY 0
        {
        }

        ARM_start +0 FIXED EMPTY 0
        {
        }
        ARM.exidx_region_start +0 FIXED EMPTY 0
        {
        }
        ARM.exidx_region +0 NOCOMPRESS
        {
                *(.ARM.exidx*)
        }
        ARM.exidx_region_end +0  EMPTY 0
        {
        }
        ARM_end +0 EMPTY 0
        {
        }

        CODE_RAM_start AlignExpr(0x400,4)  EMPTY 0
        {
        }
        code_ram_region_start AlignExpr(+0,4)  EMPTY 0
        {
        }
        code_ram_region +0 NOCOMPRESS
        {
                *(.code_ram)
        }
        code_ram_region_end +0  EMPTY 0
        {
        }
        CODE_RAM_end +0 EMPTY 0
        {
        }
}
ScatterAssert(ImageLength(LR_TEXT_0) <= 0x09F400)

LR_IVT_RAM_0 0x0
{

        IVT_RAM_start AlignExpr(+0,1024)  EMPTY 0
        {
        }
        IVT_RAM AlignExpr(+0,1024) EMPTY 0x400
        {
        }
        IVT_RAM_end +0 EMPTY 0
        {
        }
}
ScatterAssert(ImageLength(LR_IVT_RAM_0) <= 0x400)

LR_OS_HEAP_ITCM_0 0x2400
{

        OS_HEAP_ITCM_start +0  EMPTY 0
        {
        }
        OS_HEAP_ITCM_region_start +0  EMPTY 0
        {
        }
        OS_HEAP_ITCM_region +0 NOCOMPRESS
        {
                *(.OS_HEAP_ITCM)
        }
        OS_HEAP_ITCM_region_end +0  EMPTY 0
        {
        }
        OS_HEAP_ITCM_end +0 EMPTY 0
        {
        }
}
ScatterAssert(ImageLength(LR_OS_HEAP_ITCM_0) <= 0x5C00)

LR_STACK_0 0x20000000
{

        STACK_start +0  EMPTY 0
        {
        }
        STACK +0 EMPTY 0x2000
        {
        }
        STACK_end +0 EMPTY 0
        {
        }
}
ScatterAssert(ImageLength(LR_STACK_0) <= 0x2000)

LR_Os_HEAP_DTCM_0 0x20002000
{

        OS_HEAP_DTCM_start +0  EMPTY 0
        {
        }
        OS_HEAP_DTCM +0 EMPTY 0
        {
        }
        OS_HEAP_DTCM_end +0 EMPTY 0
        {
        }
}
ScatterAssert(ImageLength(LR_Os_HEAP_DTCM_0) <= 0x1E000)

LR_RAM_0 0x20020000
{

        BSS_start +0  EMPTY 0
        {
        }
        bss_region_start +0  EMPTY 0
        {
        }
        bss_region +0 NOCOMPRESS
        {
                *(.bss*)
        }
        bss_region_end +0  EMPTY 0
        {
        }
        BSS_end +0 EMPTY 0
        {
        }
}
ScatterAssert(ImageLength(LR_RAM_0) <= 0x3FF00)

LR_BOOT_APP_COM_RAM_0 0x2005ff00
{

        BOOT_APP_COM_RAM_start +0  EMPTY 0
        {
        }
        BOOT_APP_COM_BSS_region_start +0  EMPTY 0
        {
        }
        BOOT_APP_COM_BSS_region +0 NOCOMPRESS
        {
                *(.BOOT_APP_COM_BSS)
        }
        BOOT_APP_COM_BSS_region_end +0  EMPTY 0
        {
        }
        BOOT_APP_COM_RAM_end +0 EMPTY 0
        {
        }
}
ScatterAssert(ImageLength(LR_BOOT_APP_COM_RAM_0) <= 0x100)

LR_TEXT_1 0x2000c00 + ImageLength(LR_TEXT_0)
{

        DATA_RAM_start AlignExpr(ImageLimit(BSS_end),4)  EMPTY 0
        {
        }
        data_region_start +0  EMPTY 0
        {
        }
        data_region +0 NOCOMPRESS
        {
                *(.data*)
        }
        data_region_end +0  EMPTY 0
        {
        }
        DATA_RAM_end +0 EMPTY 0
        {
        }
}
ScatterAssert( 0x09F400 >= (0 + ImageLength(LR_TEXT_0)))
ScatterAssert(ImageLength(LR_TEXT_1) <= 0x09F400-(0 + ImageLength(LR_TEXT_0)))

LR_RAM_1 0x20020000 + ImageLength(LR_RAM_0)
{


        OS_HEAP_RAM_start AlignExpr(ImageLimit(DATA_RAM_end),4)  EMPTY 0
        {
        }
        OS_HEAP_RAM AlignExpr(ImageLimit(DATA_RAM_end),4) EMPTY 0
        {
        }
        OS_HEAP_RAM_end AlignExpr(+0,4) EMPTY 0
        {
        }
}
ScatterAssert( 0x3FF00 >= (0 + ImageLength(LR_RAM_0)))
ScatterAssert(ImageLength(LR_RAM_1) <= 0x3FF00-(0 + ImageLength(LR_RAM_0)))

    KEIL工程的，由于要做到代码复用，所以用了#! armclang的扩展，具体链接：https://developer.arm.com/documentation/ka002282/latest/

    后话，目前来说链接脚本哪家都有或多或少的问题，稍微比较好用的也只能是GCC了,以下是我的S32K的链接脚本：

    /*==================================================================================================
*   Project              : RTD AUTOSAR 4.7
*   Platform             : CORTEXM
*   Peripheral           : 
*   Dependencies         : none
*
*   Autosar Version      : 4.7.0
*   Autosar Revision     : ASR_REL_4_7_REV_0000
*   Autosar Conf.Variant :
*   SW Version           : 3.0.0
*   Build Version        : S32K3_RTD_3_0_0_D2303_ASR_REL_4_7_REV_0000_20230331
*
*   (c) Copyright 2020 - 2023 NXP Semiconductors
*   All Rights Reserved.
*
*   NXP Confidential. This software is owned or controlled by NXP and may only be
*   used strictly in accordance with the applicable license terms. By expressly
*   accepting such terms or by downloading, installing, activating and/or otherwise
*   using the software, you are agreeing that you have read, and that you agree to
*   comply with and are bound by, such license terms. If you do not agree to be
*   bound by the applicable license terms, then you may not retain, install,
*   activate or otherwise use the software.
==================================================================================================*/
/*
* Target device: This linker is demo and it is using for device S32K312 only. It is not part of the production code deliverables.
* Target core: ARM cortex M7
* Linker need to align with MPU default setup in system.c
*/

/*
* GCC Linker Command File:
* 0x00000000    0x00007FFF  32768   ITCM
* 0x20000000    0x2000FFFF  65536   DTCM
* 0x00400000    0x005FFFFF  2097152 Program Flash
* 0x10000000    0x1001FFFF  131072  Data Flash
* 0x20400000    0x20417FFF  98304  SRAM_0
* Last 176 KB of CODE_FLASH reserved by HSE Firmware
* standby_data section should contain only uninitialized data
*/
HEAP_SIZE  = DEFINED(__heap_size__)  ? __heap_size__  : 0x00000200;
__STANDBY_RAM_LIMIT_END  = 0x20407FFF;  /* 32Kbyte for standby ram */

ENTRY(Reset_Handler)


__BootManagerImageStartAddress__ =  0x00400000;
__BootManagerImageMaxSize__ = 128K;

__BootImageStartAddress__ =   __BootManagerImageStartAddress__ + __BootManagerImageMaxSize__ + 0x800;/*这0x800是给打包工具留的*/
__BootImageMaxSize__  = 256K -0x800;

__AppImageStartAddress__ =  __BootImageStartAddress__ + __BootImageMaxSize__ +0x800; 
__AppImageMaxSize__ =  768K - 0x800;
__AppImageMaxEndAddress__ = __AppImageStartAddress__ + __AppImageMaxSize__ ;

__DataFlashStartAddress__ = 0x10000000 ; 
__DataFlashEndAddress__ = 0x00020000 ;

__CodeFlashStartAddress__ = __AppImageStartAddress__;
__CodeFlashMaxSize__ = __AppImageMaxSize__;

MEMORY
{
    int_pflash              : ORIGIN = __CodeFlashStartAddress__, LENGTH = __CodeFlashMaxSize__    /* 2048KB - 176KB (sBAF + HSE)*/
    int_dflash              : ORIGIN = 0x10000000, LENGTH = 0x00020000    /* 128KB */
    int_itcm                : ORIGIN = 0x00000000, LENGTH = 0x00008000    /* 32KB */
    

    dtcm_msp_stack          : ORIGIN = 0x20000000, LENGTH = 0x00001000  /*4KB Interrupt Stack Size*/
    dtcm_sram               : ORIGIN = 0x20001000, LENGTH = 0x0000F000 /* 除了给中断栈之外所有的dtcm*/

    SRAM_0                  : ORIGIN = 0x20400000, LENGTH = 0x17F00    /* SRAM所有的大小*/
    BootAppComSram          : ORIGIN = 0x20417F00, LENGTH = 0x100       /*BOOT和APP交互用的RAM,上电不需要初始化*/
    ram_rsvd2               : ORIGIN = 0x20418000, LENGTH = 0             /* End of SRAM */
}
_estack = ORIGIN(dtcm_msp_stack) + LENGTH(dtcm_msp_stack);    /* 把dtcm+0x1000处的地址作为中断栈的栈顶 */

ITCM_START = ORIGIN(int_itcm) ;
ITCM_END  = ORIGIN(int_itcm) + LENGTH(int_itcm);

DTCM_START = ORIGIN(dtcm_msp_stack);
DTCM_END = ORIGIN(dtcm_sram) +  LENGTH(dtcm_sram);

SRAM0_START = ORIGIN(SRAM_0) ;
SRAM0_END  = ORIGIN(SRAM_0) + LENGTH(SRAM_0);

__BootAppComSramStart__ = ORIGIN(BootAppComSram);


SECTIONS
{

    .pflash :
    {
        KEEP(*(.boot_header))
        . = ALIGN(2048);
        __text_start = .;
        __interrupts_init_start = .;
        KEEP(*(.intc_vector))
        . = ALIGN(4);
        __interrupts_init_end = .;
        KEEP(*(.core_loop))
        . = ALIGN(4);
        *(.startup)
        . = ALIGN(4);
        *(.systeminit)
        . = ALIGN(4);
        *(.text.startup)
        
        . = ALIGN(4);
        *(.text)  
        *(.text*)

       *(EXCLUDE_FILE (*C40_Ip.o) .text)
        . = ALIGN(4);
        *(EXCLUDE_FILE (*C40_Ip.o) .mcal_text)

        . = ALIGN(4);
        *(.acmcu_code_rom)
        . = ALIGN(4);
        __acfls_code_rom_start = .;
        *(.acfls_code_rom)
        . = ALIGN(4);
        __acfls_code_rom_end = .;
        KEEP(*(.init))
        . = ALIGN(4);
        KEEP(*(.fini))
        . = ALIGN(4);
        *(.rodata)
        *(.rodata*)
        . = ALIGN(4);
        embedxrpc_service_start = .;
        KEEP(*(.embedxrpc_service))
        embedxrpc_service_end = .;
        . = ALIGN(4);
    } > int_pflash

	ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >int_pflash

  .ARM : {
    __exidx_start = .;
    *(.ARM.exidx*)
    __exidx_end = .;
  } >int_pflash

   .preinit_array     :
  {
    PROVIDE_HIDDEN (__preinit_array_start = .);
    KEEP (*(.preinit_array*))
    PROVIDE_HIDDEN (__preinit_array_end = .);
  } >int_pflash

  .init_array :
  {
    PROVIDE_HIDDEN (__init_array_start = .);
    KEEP (*(SORT(.init_array.*)))
    KEEP (*(.init_array*))
    PROVIDE_HIDDEN (__init_array_end = .);
  } >int_pflash

  .fini_array :
  {
    PROVIDE_HIDDEN (__fini_array_start = .);
    KEEP (*(SORT(.fini_array.*)))
    KEEP (*(.fini_array*))
    PROVIDE_HIDDEN (__fini_array_end = .);
  } >int_pflash
  
   .int_vector :
    {
        . = ALIGN(2048);
        __interrupts_ram_start = .;
        . += __interrupts_init_end - __interrupts_init_start;
        . = ALIGN(4);
        __interrupts_ram_end = .;
    } > dtcm_sram
     __RAM_INTERRUPT_START    = __interrupts_ram_start;
    
    _sidata = LOADADDR(.data);

    .data :
    {
       . = ALIGN(4);
        _sdata = .;        /* create a global symbol at data start */
        *(.data)           /* .data sections */
        *(.data*)          /* .data* sections */
        *(.RamFunc)        /* .RamFunc sections */
        *(.RamFunc*)       /* .RamFunc* sections */
        
        . = ALIGN(4);

        KEEP(*C40_Ip.o(.text*))
        KEEP(*C40_Ip.o(.mcal_text))

        . = ALIGN(4);
        *(.mcal_data)

        . = ALIGN(4);
        *(.ramcode)
        
        . = ALIGN(4);
        _edata = .;        /* define a global symbol at data end */

    } > dtcm_sram AT>int_pflash

    .bss :
    {
        . = ALIGN(4);
        _sbss = .;         /* define a global symbol at bss start */
        __bss_start__ = _sbss;
        *(.bss)
        *(.bss*)
        *(COMMON)

        . = ALIGN(4);
        *(.mcal_bss)

        . = ALIGN(4);
        _ebss = .;         /* define a global symbol at bss end */
        __bss_end__ = _ebss;
        
        . = ALIGN(4);
        __OS_HEAP0_START = .;
        
        PROVIDE ( end = . );
    	PROVIDE ( _end = . );
    } > dtcm_sram
    
	__OS_HEAP0_END = ORIGIN(dtcm_sram) + LENGTH(dtcm_sram);
	
	__OS_HEAP1_START = ORIGIN(SRAM_0) ;
    __OS_HEAP1_END            = ORIGIN(SRAM_0) + LENGTH(SRAM_0);
    
    

    Fls_ACEraseRomStart      = __acfls_code_rom_start;
    Fls_ACEraseRomEnd        = __acfls_code_rom_end;
    Fls_ACEraseSize          = (__acfls_code_rom_end - __acfls_code_rom_start) / 4; /* Copy 4 bytes at a time*/

    Fls_ACWriteRomStart      = __acfls_code_rom_start;
    Fls_ACWriteRomEnd        = __acfls_code_rom_end;
    Fls_ACWriteSize          = (__acfls_code_rom_end - __acfls_code_rom_start) / 4; /* Copy 4 bytes at a time*/

    

    __ENTRY_VTABLE           = __interrupts_init_start;

    __CORE0_VTOR             = __interrupts_init_start;
	__CORE1_VTOR             = __CORE0_VTOR;
    __CORE2_VTOR             = __CORE0_VTOR;


}

    如果云途想做简化链接脚本，可以实现一个Python/C#/JS类,执行用户脚本，得到有多少个memory，每个memory有多少个Group，每个Group有多少个Section等等,用户可以这么写:

    var bvt_header_secction=new section();
bvt_header_secction.Name =  "*(.bvt_header)";
bvt_header_secction.ForceLength= 0x800;

var sb_config_group=new section();
sb_config_group.Name = "*(.sb_config_group)"

var sb_config_section=new section();
sb_config_section.Name= "*(.sb_config_section)";

...
var pflash0=new pflash(YTM32.YTM32B1HA10.PFLASH0START);

pflash0.AddSections(bvt_header_secction);//bvt_header_secction.由于ForceLength不为0，所以pflash0内部地址累加器(pflash0.AddressAccumulator)是pflash0.Base+0x800
pflash0.AddSections(sb_config_section);
...
LinkerHost.ExportSymbol("MySymbol",pflash0.AddressAccumulator);//导出当前符号

if(LinkerHost.IsDefined("BUILD_APP")) //通过COnfigTool界面配置的
pflash0.AddressAccumulator + = 0x666; //用户打算跳过0x666个字节。

Chip.AddMemory(pflash0);
Chip.AddMemory(pflash1);
Chip.AddMemory(dtcm);
.....
return Chip;

    ConfigTOOL宿主机那边只要获取到Chip，就可以生成IAR，GCC等等的脚本了。

    1 条回复 最后回复
    0
    • FrankieF 离线
      FrankieF 离线
      Frankie YunTu
      写于 最后由 编辑
      #2

      可以先看看：
      https://forum.ytmicro.com/topic/111/boot-app-的简单-demo?=1739587358163
      https://forum.ytmicro.com/topic/320/yt-link使用手册?      =1739587710514

      理论上你想实现的功能，在YT-LINK上都能配置出来。

      1 条回复 最后回复
      0

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