28235程序经常跑飞，比如我申请一个buffer，程序就会不断重新运行。

比如我的主函数在调用这个结构体后就会复位重新run，一直重新run。
但是我把tx_buf调小，就不会跑飞，请问这有可能是什么问题？
typedef unsigned long un32;
struct sys_struct
[
un32 sys_state;
un32 buffer[32];
un32 tx_buf[128];
struct FPGA_struct fpga;
struct adc_struct adc;
struct time_struct time;
struct thread_struct thread;
];




这是别人给我的一个cmd文件，难道这里写的有问题？
/*
// TI File $Revision: /main/9 $
// Checkin $Date: August 28, 2007 11:23:38 $
//###########################################################################
//
// FILE: F28335.cmd
//
// TITLE: Linker Command File For F28335 Device
//
//###########################################################################
// $TI Release: DSP2833x Header Files V1.01 $
// $Release Date: September 26, 2007 $
//###########################################################################
*/
/* ======================================================
// For Code Composer Studio V2.2 and later
// ---------------------------------------
// In addition to this memory linker command file,
// add the header linker command file directly to the project.
// The header linker command file is required to link the
// peripheral structures to the proper locations within
// the memory map.
//
// The header linker files are found in DSP2833x_Headerscmd
//
// For BIOS applications add: DSP2833x_Headers_BIOS.cmd
// For nonBIOS applications add: DSP2833x_Headers_nonBIOS.cmd
========================================================= */
/* ======================================================
// For Code Composer Studio prior to V2.2
// --------------------------------------
// 1) Use one of the following -l statements to include the
// header linker command file in the project. The header linker
// file is required to link the peripheral structures to the proper
// locations within the memory map */
/* Uncomment this line to include file only for non-BIOS applications */
/* -l DSP2833x_Headers_nonBIOS.cmd */
/* Uncomment this line to include file only for BIOS applications */
/* -l DSP2833x_Headers_BIOS.cmd */
/* 2) In your project add the path to DSP2833x_headerscmd to the
library search path under project->build options, linker tab,
library search path (-i).
/*========================================================= */
/* Define the memory block start/length for the F28335
PAGE 0 will be used to organize program sections
PAGE 1 will be used to organize data sections
Notes:
Memory blocks on F28335 are uniform (ie same
physical memory) in both PAGE 0 and PAGE 1.
That is the same memory region should not be
defined for both PAGE 0 and PAGE 1.
Doing so will result in corruption of program
and/or data.

L0/L1/L2 and L3 memory blocks are mirrored - that is
they can be accessed in high memory or low memory.
For simplicity only one instance is used in this
linker file.

Contiguous SARAM memory blocks can be combined
if required to create a larger memory block.
*/

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 */
RAML0 : origin = 0x008000, length = 0x001000 /* on-chip RAM block L0 */
RAML1 : origin = 0x009000, length = 0x001000 /* on-chip RAM block L1 */
RAML2 : origin = 0x00A000, length = 0x001000 /* on-chip RAM block L2 */
RAML3 : origin = 0x00B000, length = 0x001000 /* on-chip RAM block L3 */
ZONE6A : origin = 0x100000, length = 0x00FC00 /* XINTF zone 6 - program space*/
ZONE7 : origin = 0x200000, length = 0x100000 /* XINTF zone 7 */
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 : 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 */
OTP : origin = 0x380400, length = 0x000400 /* on-chip OTP */
ADC_CAL : origin = 0x380080, length = 0x000009 /* ADC_cal function in Reserved memory */

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 = 0x000050 /* Part of M0, BOOT rom will use this for stack */
RAMM0 : origin = 0x000050, length = 0x0003B0 /* on-chip RAM block M0 */
RAMM1 : origin = 0x000400, length = 0x000400 /* on-chip RAM block M1 */
RAML4 : origin = 0x00C000, length = 0x001000 /* on-chip RAM block L1 */
RAML5 : origin = 0x00D000, length = 0x001000 /* on-chip RAM block L1 */
RAML6 : origin = 0x00E000, length = 0x001000 /* on-chip RAM block L1 */
RAML7 : origin = 0x00F000, length = 0x001000 /* on-chip RAM block L1 */
RAML8 : origin = 0x010000, length = 0x001000 /* on-chip RAM block L1 */
ZONE6B : origin = 0x10FC00, length = 0x000400 /* XINTF zone 6 - data space */
FLASHB : origin = 0x330000, length = 0x008000 /* on-chip FLASH */
]
/* Allocate sections to memory blocks.
Note:
codestart user defined section in DSP28_CodeStartBranch.asm used to redirect code
execution when booting to flash
ramfuncs user defined section to store functions that will be copied from Flash into RAM
*/

SECTIONS
[

/* Allocate program areas: */
.cinit : > FLASHA PAGE = 0
.pinit : > FLASHA, PAGE = 0
.text : > FLASHA PAGE = 0
codestart : > BEGIN PAGE = 0
ramfuncs : LOAD = FLASHD,
RUN = RAML0,
LOAD_START(_RamfuncsLoadStart),
LOAD_END(_RamfuncsLoadEnd),
RUN_START(_RamfuncsRunStart),
PAGE = 0
csmpasswds : > CSM_PWL PAGE = 0
csm_rsvd : > CSM_RSVD PAGE = 0

/* Allocate uninitalized data sections: */
//.stack : > RAMM1 PAGE = 1
.stack : > RAMM1 | RAML8 PAGE = 1
.ebss : > RAML4 PAGE = 1
.esysmem : > RAMM1 | RAML7 PAGE = 1
.cio : > RAML6 PAGE = 1
/* Initalized sections go in Flash */
/* For SDFlash to program these, they must be allocated to page 0 */
.econst : > FLASHA PAGE = 0
.switch : > 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 6 to storing data */
ZONE6DATA : > ZONE6B, PAGE = 1
/* .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

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