DSP 28335 将Flash程序全部拷贝至Ram，串口通信失效？-TI中文支持网

请教下各位，我按照网上的说明，将DSP 中Flash代码程序全部拷贝至Ram中运行，实验过程中，编译无错误，

最终也能进去主中断，测试了下，代码指令的运行时间，也没问题，跟在ram中运行一致，表明代码已经成功拷贝至ram了，

但是，串口通信无法成功通信，dsp无法接收到串口发送过来的数据。。换了之前在flash中运行的程序是可以接受到的，这里就排除是串口的问题了。

请教下各位，这种现象，会是什么原因导致，有可能跟我配置的cmd文件有关系吗，但是，看了下cmd实在找不出什么问题。这里我把我配的cmd传上来，

哪位大神有空能帮我看看有没有问题存在！

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_L0_L5: origin = 0x008000, length = 0x006000 /* on-chip RAM */
OTP : origin = 0x380400, length = 0x000400 /* on-chip OTP */
ZONE6 : origin = 0x100000, length = 0x100000 /* 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 /* Part of M1, BOOT rom will use this for stack */
/* RAMM0 : origin = 0x000080, length = 0x000400 /* on-chip RAM block M0 */
/* RAMM1 : origin = 0x000480, length = 0x000380 /* on-chip RAM block M1 */
RAMM01 : origin = 0x000080, length = 0x000780 /* on-chip RAM block M0 */
/* 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 */
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 : > RAML7, PAGE = 1
DMARAML5 : > RAML7, PAGE = 1
DMARAML6 : > RAML7, 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 : > RAMM01 PAGE = 1
.ebss : > RAML6 PAGE = 1
.esysmem : > RAMM01 PAGE = 1

/*** Initialized Sections ***/ .cinit : LOAD = FLASHA, PAGE = 0 /* can be ROM */ RUN = RAM_L0_L5, 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_L0_L5, 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_L0_L5, 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_L0_L5, 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_L0_L5, 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 = RAM_L0_L5, PAGE = 0 /* must be CSM secured RAM */
LOAD_START(_text_loadstart),
RUN_START(_text_runstart),
SIZE(_text_size)
}

囧：

你的串口能收到数据吗？串口收到的数据是先放到寄存器的，和FLASH RAM没关系，如果串口收不到数据那就是串口的问题，如果收到却没放到正确的位置，那才有可能和存储空间有关