F28335 Zone6外扩Ram,在线仿真调试时出现“No source available for "c

具体情况是这样的，我打算把程序下载到Flash中，然后上电时将程序全部拷贝到Ram运行，当我在CMD文件中选择将.text段的运行地址设为L0 SRAM时，可以正常调试仿真，也能够不在Debug模式下正常运行，但是，当把CMD文件中.text段的运行地址设为ZONE6A时，在线仿真调试就会出现“No source available for "c_int00() at 0x102b47" 。有人说需要在“DSP2833x_CodeStartBranch.asm”中添加Xintf初始化，但是，添加之后仍然出现“No source available for "c_int00() at 0x102b47" ，请大家解惑？

Chunlei Xiao：

/*############################################################################

FILE: DSP2833x_nonBIOS_flash.cmd

DESCRIPTION: Linker allocation for all sections. ############################################################################ Author: Tim Love Release Date: March 2008############################################################################*/

MEMORY{PAGE 0: /* Program Memory */ /* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE1 for data allocation */

ZONE0 : origin = 0x004000, length = 0x001000 /* XINTF zone 0 */ RAM_L0L1L2L3: origin = 0x008000, length = 0x004000 /* on-chip RAM */ OTP : origin = 0x380400, length = 0x000400 /* on-chip OTP */ ZONE6A : origin = 0x100000, length = 0x080000 /* XINTF zone 6 */ //ZONE7A : origin = 0x200000, length = 0x00FC00 /* XINTF zone 7 – program space */ FLASHH : origin = 0x300000, length = 0x008000 /* on-chip FLASH */ FLASHG : origin = 0x308000, length = 0x008000 /* on-chip FLASH */ FLASHF : origin = 0x310000, length = 0x008000 /* on-chip FLASH */ FLASHE : origin = 0x318000, length = 0x008000 /* on-chip FLASH */ FLASHD : origin = 0x320000, length = 0x008000 /* on-chip FLASH */ FLASHC : origin = 0x328000, length = 0x008000 /* on-chip FLASH */ FLASHA : origin = 0x338000, length = 0x007F80 /* on-chip FLASH */ CSM_RSVD : origin = 0x33FF80, length = 0x000076 /* Part of FLASHA. Program with all 0x0000 when CSM is in use. */ BEGIN_FLASH : origin = 0x33FFF6, length = 0x000002 /* Part of FLASHA. Used for "boot to Flash" bootloader mode. */ CSM_PWL : origin = 0x33FFF8, length = 0x000008 /* Part of FLASHA. CSM password locations in FLASHA */ ADC_CAL : origin = 0x380080, length = 0x000009 /* Part of TI OTP */ IQTABLES : origin = 0x3FE000, length = 0x000b50 /* IQ Math Tables in Boot ROM */ IQTABLES2 : origin = 0x3FEB50, length = 0x00008c /* IQ Math Tables in Boot ROM */ FPUTABLES : origin = 0x3FEBDC, length = 0x0006A0 /* FPU Tables in Boot ROM */ ROM : origin = 0x3FF27C, length = 0x000D44 /* Boot ROM */ RESET : origin = 0x3FFFC0, length = 0x000002 /* part of boot ROM */ VECTORS : origin = 0x3FFFC2, length = 0x00003E /* part of boot ROM */

PAGE 1 : /* Data Memory */ /* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE0 for program allocation */ /* Registers remain on PAGE1 */

BOOT_RSVD : origin = 0x000000, length = 0x000080 /* on-chip RAM block M0 */ RAMM0 : origin = 0x000080, length = 0x000400 /* Part of M1, BOOT rom will use this for stack */ RAMM1 : origin = 0x000480, length = 0x000380 /* on-chip RAM block M1 */ RAML4 : origin = 0x00C000, length = 0x001000 /* on-chip RAM block L4 */ RAML5 : origin = 0x00D000, length = 0x001000 /* on-chip RAM block L5 */ RAML6 : origin = 0x00E000, length = 0x001000 /* on-chip RAM block L6 */ RAML7 : origin = 0x00F000, length = 0x001000 /* on-chip RAM block L7 */ ZONE6B : origin = 0x180000, length = 0x080000 /* XINTF zone 6 */ //ZONE7B : origin = 0x20FC00, length = 0x000400 /* XINTF zone 7 – data space */}

/**************************************************************//* Link all user defined sections *//**************************************************************/SECTIONS{

/*** Code Security Password Locations ***/ csmpasswds : > CSM_PWL PAGE = 0 csm_rsvd : > CSM_RSVD PAGE = 0

/*** User Defined Sections ***/ codestart : > BEGIN_FLASH, PAGE = 0 /* Used by file CodeStartBranch.asm */ wddisable : > FLASHA, PAGE = 0 copysections : > FLASHA, PAGE = 0

/* Allocate IQ math areas: */ IQmath : > FLASHC PAGE = 0 /* Math Code */ IQmathTables : > IQTABLES, PAGE = 0, TYPE = NOLOAD //IQmathTables2 : > IQTABLES2, PAGE = 0, TYPE = NOLOAD FPUmathTables : > FPUTABLES, PAGE = 0, TYPE = NOLOAD /* Allocate DMA-accessible RAM sections: */ DMARAML4 : > RAML4, PAGE = 1 DMARAML5 : > RAML5, PAGE = 1 DMARAML6 : > RAML6, PAGE = 1 DMARAML7 : > RAML7, PAGE = 1 /* Allocate 0x400 of XINTF Zone 7 to storing data */ //ZONE7DATA : > ZONE7B, PAGE = 1

/* Allocate ADC_cal function (pre-programmed by factory into TI reserved memory) */ .adc_cal : load = ADC_CAL, PAGE = 0, TYPE = NOLOAD

/* .reset is a standard section used by the compiler. It contains the */ /* the address of the start of _c_int00 for C Code. /*/* When using the boot ROM this section and the CPU vector *//* table is not needed. Thus the default type is set here to *//* DSECT */ .reset : > RESET, PAGE = 0, TYPE = DSECT vectors : > VECTORS PAGE = 0, TYPE = DSECT

/*** Uninitialized Sections ***/ .stack : > RAMM0 PAGE = 1 .ebss : > ZONE6B PAGE = 1 .esysmem : > RAMM1 PAGE = 1

/*** Initialized Sections ***/ .cinit : LOAD = FLASHA, PAGE = 0 /* can be ROM */ RUN = ZONE6A , PAGE = 0 /* must be CSM secured RAM */ LOAD_START(_cinit_loadstart), RUN_START(_cinit_runstart), SIZE(_cinit_size)

.const : LOAD = FLASHA, PAGE = 0 /* can be ROM */ RUN = RAM_L0L1L2L3 , PAGE = 0 /* must be CSM secured RAM */ LOAD_START(_const_loadstart), RUN_START(_const_runstart), SIZE(_const_size)

.econst : LOAD = FLASHA, PAGE = 0 /* can be ROM */ RUN = RAM_L0L1L2L3, PAGE = 0 /* must be CSM secured RAM */ LOAD_START(_econst_loadstart), RUN_START(_econst_runstart), SIZE(_econst_size)

.pinit : LOAD = FLASHA, PAGE = 0 /* can be ROM */ RUN = RAM_L0L1L2L3, PAGE = 0 /* must be CSM secured RAM */ LOAD_START(_pinit_loadstart), RUN_START(_pinit_runstart), SIZE(_pinit_size)

.switch : LOAD = FLASHA, PAGE = 0 /* can be ROM */ RUN = RAM_L0L1L2L3, PAGE = 0 /* must be CSM secured RAM */ LOAD_START(_switch_loadstart), RUN_START(_switch_runstart), SIZE(_switch_size)

.text : LOAD = FLASHA, PAGE = 0 /* can be ROM */ RUN = ZONE6A , PAGE = 0 /* must be CSM secured RAM */ LOAD_START(_text_loadstart), RUN_START(_text_runstart), SIZE(_text_size)}

/******************* end of file ************************/

出错的CMD文件贴在上面，请大家解惑

10#：

回复 Chunlei Xiao:

你的程序还是放在内部FLASH里的，只是通过copy的方式搬运到外部RAM上运行，从.cmd文件上看，好像没有什么问题，所以你有在程序里进行memory copy吗？

Chunlei Xiao：

回复 10#:

你好，我在程序中并没有添加MemoryCopy()函数，但是添加了DSP28xxxSectionCopy_nonBIOS.asm,并且对DSP2833xCodeStartBranch.asm文件进行了修改，两个文件的内容，我贴在下面，请指教

CodeStartBranch.asm文件

***********************************************************************

WD_DISABLE .set 1 ;set to 1 to disable WD, else set to 0

.ref copy_sections .global code_start .ref _InitSysCtrl .ref _InitXintf

************************************************************************ Function: codestart section** Description: Branch to code starting point***********************************************************************

.sect "codestart"

code_start: .if WD_DISABLE == 1 LB wd_disable ;Branch to watchdog disable code .else LB copy_sections ;Branch to copy_sections .endif

;end codestart section

************************************************************************ Function: wd_disable** Description: Disables the watchdog timer*********************************************************************** .if WD_DISABLE == 1

.sect "wddisable"wd_disable: SETC OBJMODE ;Set OBJMODE for 28x object code EALLOW ;Enable EALLOW protected register access MOVZ DP, #7029h>>6 ;Set data page for WDCR register MOV @7029h, #0068h ;Set WDDIS bit in WDCR to disable WD EDIS ;Disable EALLOW protected register access LB copy_sections ;Branch to copy_sections

.endif

;end wd_disable

.end

;//===========================================================================;// End of file.;//===========================================================================

SectionCopy_nonBIOS.asm文件

.ref _c_int00 .global copy_sections .global _cinit_loadstart, _cinit_runstart, _cinit_size .global _const_loadstart, _const_runstart, _const_size .global _econst_loadstart, _econst_runstart, _econst_size .global _pinit_loadstart, _pinit_runstart, _pinit_size .global _switch_loadstart, _switch_runstart, _switch_size .global _text_loadstart, _text_runstart, _text_size ************************************************************************ Function: copy_sections** Description: Copies initialized sections from flash to ram***********************************************************************

.sect "copysections"

copy_sections:

MOVL XAR5,#_const_size ; Store Section Size in XAR5 MOVL ACC,@XAR5 ; Move Section Size to ACC MOVL XAR6,#_const_loadstart ; Store Load Starting Address in XAR6 MOVL XAR7,#_const_runstart ; Store Run Address in XAR7 LCR copy ; Branch to Copy MOVL XAR5,#_econst_size ; Store Section Size in XAR5 MOVL ACC,@XAR5 ; Move Section Size to ACC MOVL XAR6,#_econst_loadstart ; Store Load Starting Address in XAR6 MOVL XAR7,#_econst_runstart ; Store Run Address in XAR7 LCR copy ; Branch to Copy

MOVL XAR5,#_pinit_size ; Store Section Size in XAR5 MOVL ACC,@XAR5 ; Move Section Size to ACC MOVL XAR6,#_pinit_loadstart ; Store Load Starting Address in XAR6 MOVL XAR7,#_pinit_runstart ; Store Run Address in XAR7 LCR copy ; Branch to Copy

MOVL XAR5,#_switch_size ; Store Section Size in XAR5 MOVL ACC,@XAR5 ; Move Section Size to ACC MOVL XAR6,#_switch_loadstart ; Store Load Starting Address in XAR6 MOVL XAR7,#_switch_runstart ; Store Run Address in XAR7 LCR copy ; Branch to Copy

MOVL XAR5,#_text_size ; Store Section Size in XAR5 MOVL ACC,@XAR5 ; Move Section Size to ACC MOVL XAR6,#_text_loadstart ; Store Load Starting Address in XAR6 MOVL XAR7,#_text_runstart ; Store Run Address in XAR7 LCR copy ; Branch to Copy MOVL XAR5,#_cinit_size ; Store Section Size in XAR5 MOVL ACC,@XAR5 ; Move Section Size to ACC MOVL XAR6,#_cinit_loadstart ; Store Load Starting Address in XAR6 MOVL XAR7,#_cinit_runstart ; Store Run Address in XAR7 LCR copy ; Branch to Copy

LB _c_int00 ; Branch to start of boot.asm in RTS library

copy: B return,EQ ; Return if ACC is Zero (No section to copy)

RPT AL ; Copy Section From Load Address to || PWRITE *XAR7, *XAR6++ ; Run Address

return: LRETR ; Return

.end

10#：

回复 Chunlei Xiao:

有上面的汇编代码完成拷贝就可以了，但是好像没有看到XINTF的初始化？而且它需要在copy代码之前。

Chunlei Xiao：

回复 10#:

是的，上面CodeStartBranch.asm文件中确实没有对XINTF进行初始化，请问怎么样才能在拷贝代码之前对XINTF进行初始化。我当时是在CodeStartBranch.asm文件中

.if WD_DISABLE == 1

LCR _initsysctrl ;

LCR _initXintf ;对XINTF进行初始化

LB copy_sections ;Branch to copy_sections

.endif

但是，程序并不能正常运行

10#：

回复 Chunlei Xiao:

参考类似的语句有对XINTF初始化即可：

MOVZ DP, #7029h>>6 ;Set data page for WDCR register MOV @7029h, #0068h ;Set WDDIS bit in WDCR to disable WD

你可以单步调试看看是否正常跳转。

Chunlei Xiao：

回复 10#:

多谢耐心指教！如果想用这种方式对XINTF初始化，必须采用汇编指令才可以是吗？如果是这样的话，我能否从《SPRU430 ‐ TMS320C28x CPU和指令集参考指南》中，找到一些关于这方面的汇编指令信息，或者TI的官方文档中，有没有这方面的描述。

10#：

回复 Chunlei Xiao:

是的，建议在执行copy之前通过汇编进行XINTF的初始化，并没有那么复杂，只需要按照上面提到的方式，先找到对应寄存器所在的页(DP, data page)，然后通过偏移量寻址的方式对该寄存器写入初始化值即可。同时确保在此之前对应的XINTF引脚也已经通过GPIO初始化为XINTF的功能，而不是保持默认的GPIO状态。

Chunlei Xiao：

回复 10#:

好的，多谢，我先试一试，争取不再麻烦你。

10#：

回复 Chunlei Xiao:

没事，你先看看，还有问题欢迎回来继续讨论，只要尽可能提供多的信息就好，方便大家集思广益。

F28335 Zone6外扩Ram,在线仿真调试时出现“No source available for "c_int00() at 0x102b47"

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