你好，
我现在想让我的代码全部在外部ram中运行，外部的ram使用的Zone7，CMD文件划分如下：
MEMORY
{
PAGE 0 :
/* BEGIN is used for the "boot to SARAM" bootloader mode */
BEGIN : origin = 0x200000, length = 0x000002 /* Boot to M0 will go here */
RAMM0 : origin = 0x000050, length = 0x0003B0
RAML0 : origin = 0x008000, length = 0x001000
RAML1 : origin = 0x009000, length = 0x001000
RAML2 : origin = 0x00A000, length = 0x001000
RAML3 : origin = 0x00B000, length = 0x001000
ZONE7A : origin = 0x200002, length = 0x018000 /* XINTF zone 7 - program space */
CSM_RSVD : origin = 0x33FF80, length = 0x000076 /* Part of FLASHA. Program with all 0x0000 when CSM is in use. */
CSM_PWL : origin = 0x33FFF8, length = 0x000008 /* Part of FLASHA. CSM password locations in FLASHA */
ADC_CAL : origin = 0x380080, length = 0x000009
RESET : origin = 0x3FFFC0, length = 0x000002
IQTABLES : origin = 0x3FE000, length = 0x000b50
IQTABLES2 : origin = 0x3FEB50, length = 0x00008c
FPUTABLES : origin = 0x3FEBDC, length = 0x0006A0
BOOTROM : origin = 0x3FF27C, length = 0x000D44
PAGE 1 :
BOOT_RSVD : origin = 0x000002, length = 0x00004E /* Part of M0, BOOT rom will use this for stack */
RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */
RAML4 : origin = 0x00C000, length = 0x001000
RAML5 : origin = 0x00D000, length = 0x001000
RAML6 : origin = 0x00E000, length = 0x001000
RAML7 : origin = 0x00F000, length = 0x001000
ZONE7B : origin = 0x218002, length = 0x007FFE /* XINTF zone 7 - data space */
}
SECTIONS
{
/* Setup for "boot to SARAM" mode:
The codestart section (found in DSP28_CodeStartBranch.asm)
re-directs execution to the start of user code. */
codestart : > BEGIN, PAGE = 0
ramfuncs : > ZONE7A, PAGE = 0
.text : > ZONE7A, PAGE = 0
.cinit : > ZONE7A, PAGE = 0
.pinit : > ZONE7A, PAGE = 0
.switch : > ZONE7A, PAGE = 0
.stack : > ZONE7B, PAGE = 1
.ebss : > ZONE7B, PAGE = 1
.econst : > ZONE7B, PAGE = 1
.esysmem : > ZONE7B, PAGE = 1
IQmath : > ZONE7A, PAGE = 0
IQmathTables : > IQTABLES, PAGE = 0, TYPE = NOLOAD
FPUmathTables : > FPUTABLES, PAGE = 0, TYPE = NOLOAD
DMARAML4 : > ZONE7B, PAGE = 1
DMARAML5 : > ZONE7B, PAGE = 1
DMARAML6 : > ZONE7B, PAGE = 1
DMARAML7 : > ZONE7B, PAGE = 1
ZONE7DATA : > ZONE7B, PAGE = 1
.reset : > RESET, PAGE = 0, TYPE = DSECT /* not used */
csm_rsvd : > CSM_RSVD PAGE = 0, TYPE = DSECT /* not used for SARAM examples */
csmpasswds : > CSM_PWL PAGE = 0, TYPE = DSECT /* not used for SARAM examples */
/* Allocate ADC_cal function (pre-programmed by factory into TI reserved memory) */
.adc_cal : load = ADC_CAL, PAGE = 0, TYPE = NOLOAD
}
在外部SRAM仿真运行，下面的 程序，能够正常运行。通过串口能够输出 aa,bb,cc,dd,ee,ff.。
void SendData(void)
{
int i =0;
unsigned char str1[3] ={0xaa,0xbb,0xcc};
for(i=0; i<3; i++)
{
SendBSC0(str1[i]);
}
SendBSC0(0xdd);
SendBSC0(0xee);
SendBSC0(0xff);
}
但是，我实际使用时，通过一个自己写的boot程序，讲上边仿真时生成的hex文件，搬移到外部sram中，然后跳转到0x200000去执行程序，发现程序运行部正常
，串口输出结果为08 20 a0 dd ee ff。
实验了多次，问题出现在
SendBSC0(str1[i]);
代码上，好像在外部sram中运行时 获取str1数组中的数据有问题。为什么会出现这种现象？
麻烦大神帮忙看下，万分感谢！！！
