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

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

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

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？

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

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。

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

.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

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

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。

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。

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。

好的，多谢，我先试一试，争取不再麻烦你。