TMS320F28069: Custom bootloader 程序跳转的问题

MEMORY
{
PAGE 0 :   /* Program Memory */
   progRam     : origin = 0x008000, length = 0x002000    /* RAML8      : 8K,用于程序*/
   dataRam     : origin = 0x00A000, length = 0x00A000    /* RAML0~RAML7: 40K,用于数据*/
   stkRam      : origin = 0x000050, length = 0x0007B0    /* M0~M1      : 2K,用于堆栈*/

   APP_FLAG   : origin = 0x3F4000, length = 0x000010     /* bootloader flag,ast-boot-28069*/
   APP_VER    : origin = 0x3F4010, length = 0x000010     /* bootloader version,1.0.0.1*/
   FLASHA      : origin = 0x3F4020, length = 0x003F60     /* bootloader */

   CSM_RSVD    : origin = 0x3F7F80, length = 0x000076     /* Part of FLASHA.  Program with all 0x0000 when CSM is in use. */
   BEGIN       : origin = 0x3F7FF6, length = 0x000002     /* Part of FLASHA.  Used for "boot to Flash" bootloader mode. */
   CSM_PWL_P0  : origin = 0x3F7FF8, length = 0x000008     /* Part of FLASHA.  CSM password locations in FLASHA */

   ROM         : origin = 0x3FF3B0, length = 0x000C10     /* Boot ROM */
   RESET       : origin = 0x3FFFC0, length = 0x000002     /* part of boot ROM  */
   VECTORS     : origin = 0x3FFFC2, length = 0x00003E     /* part of boot ROM  */

   BOOT_RSVD   : origin = 0x000000, length = 0x000050     /* Part of M0, BOOT rom will use this for stack */
   USB_RAM     : origin = 0x040000, length = 0x000800     /* USB RAM		  */
}

/* 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: */
   AppFlag             : > APP_FLAG,      PAGE = 0  
   AppVer              : > APP_VER,       PAGE = 0  
   
   .cinit              : > FLASHA,      PAGE = 0
   .pinit              : > FLASHA,      PAGE = 0
   .text               : > FLASHA,      PAGE = 0
   codestart           : > BEGIN,         PAGE = 0

   csmpasswds          : > CSM_PWL_P0,    PAGE = 0
   csm_rsvd            : > CSM_RSVD,      PAGE = 0

   ramfuncs            : LOAD = FLASHA,
                         RUN = progRam,
                         LOAD_START(_RamfuncsLoadStart),
                         LOAD_END(_RamfuncsLoadEnd),
                         RUN_START(_RamfuncsRunStart),
						       LOAD_SIZE(_RamfuncsLoadSize),
                         PAGE = 0

   .stack              : > dataRam,      PAGE = 0
   .cio                : > dataRam,      PAGE = 0
   .sysmem             : > dataRam,      PAGE = 0
   .ebss               : > dataRam,      PAGE = 0
   .esysmem            : > dataRam,      PAGE = 0

   .econst             : > FLASHA,      PAGE = 0
   .switch             : > FLASHA,      PAGE = 0

   .reset              : > RESET,      PAGE = 0, TYPE = DSECT
   vectors             : > VECTORS,    PAGE = 0, TYPE = DSECT

}

#define FLASH_ENTRY_POINT 0X3E4000

const unsigned char ucWelcome[] = "bootloader 1.0.0.1";
Uint32 main(void)
{
	/** 将需要在RAM中运行的代码从Flash拷贝到RAM中*/
	memcpy(&RamfuncsRunStart, &RamfuncsLoadStart, (Uint32)&RamfuncsLoadSize);

	/* 系统初始化 */
	DisableDog();
	XtalOscSel();
	InitPll(DSP28_PLLCR,DSP28_DIVSEL);

	DELAY_US(100);
	/** 初始化对外接口 */
	EST_Initialize();
	
	SCIB_Init();
	
	SCIB_TxByte(ucWelcome,sizeof(ucWelcome) - 1);
	/** app接收程序 */
	return 0X3E4000;
}

MEMORY
{
PAGE 0 :   /* Program Memory */
           /* Memory (RAM/FLASH/OTP) blocks can be moved to PAGE1 for data allocation */
   OTP         : origin = 0x3D7800, length = 0x000400     /* on-chip OTP */
   progRAM     : origin = 0x008000, length = 0x00C000     /* RAML1~RAML8,48K*/
   // FLASHH      : origin = 0x3D8000, length = 0x004000     /* on-chip FLASH */
   // FLASHG      : origin = 0x3DC000, length = 0x004000     /* on-chip FLASH */
   // FLASHF      : origin = 0x3E0000, length = 0x004000     /* on-chip FLASH */
   //FLASHE      : origin = 0x3E4000, length = 0x004000     /* on-chip FLASH */   
   //FLASHD      : origin = 0x3E8000, length = 0x004000     /* on-chip FLASH */
   //FLASHC      : origin = 0x3EC000, length = 0x004000     /* on-chip FLASH */
   progRom     : origin = 0x3E4002, length = (0x00C000 - 0x2)     /* FLASHC|FLASHD|FLASHE */   

   CSM_RSVD    : origin = 0x3F7F80, length = 0x000076     /* Part of FLASHA.  Program with all 0x0000 when CSM is in use. */
 
   BEGIN       : origin = 0x3E4000, length = 0x000002    /* BEGIN,part of FLASHE*/
   CSM_PWL_P0  : origin = 0x3F7FF8, length = 0x000008     /* Part of FLASHA.  CSM password locations in FLASHA */

   FPUTABLES   : origin = 0x3FD860, length = 0x0006A0	  /* FPU Tables in Boot ROM */
   IQTABLES    : origin = 0x3FDF00, length = 0x000B50     /* IQ Math Tables in Boot ROM */
   IQTABLES2   : origin = 0x3FEA50, length = 0x00008C     /* IQ Math Tables in Boot ROM */
   IQTABLES3   : origin = 0x3FEADC, length = 0x0000AA	  /* IQ Math Tables in Boot ROM */

   ROM         : origin = 0x3FF3B0, length = 0x000C10     /* Boot ROM */
   RESET       : origin = 0x3FFFC0, length = 0x000002     /* part of boot ROM  */
   VECTORS     : origin = 0x3FFFC2, length = 0x00003E     /* part of boot ROM  */
                                              */

   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 */
}



SECTIONS
{

   /* Allocate program areas: */
   .cinit              : > progRom,     PAGE = 0
   .pinit              : > progRom,     PAGE = 0
   .text               : > progRom,     PAGE = 0
   codestart           : > BEGIN,      PAGE = 0
   ramfuncs            : LOAD = progRom,
                         RUN = progRAM,
                         LOAD_START(_RamfuncsLoadStart),
                         LOAD_END(_RamfuncsLoadEnd),
                         RUN_START(_RamfuncsRunStart),
						 LOAD_SIZE(_RamfuncsLoadSize),
                         PAGE = 0

   csmpasswds          : > CSM_PWL_P0, PAGE = 0
   csm_rsvd            : > CSM_RSVD,   PAGE = 0

   /* Allocate uninitalized data sections: */
   .stack              : > progRAM,      PAGE = 0
   .ebss               : > progRAM,      PAGE = 0
   .esysmem            : > progRAM,      PAGE = 0

   /* Initalized sections to go in Flash */
   /* For SDFlash to program these, they must be allocated to page 0 */
   .econst             : > progRom,     PAGE = 0
   .switch             : > progRom,     PAGE = 0

   /* Allocate IQ math areas: */
   IQmath              : > progRom,     PAGE = 0            /* Math Code */
   IQmathTables        : > IQTABLES,   PAGE = 0, TYPE = NOLOAD
   
   /* Allocate FPU math areas: */
   FPUmathTables       : > FPUTABLES,  PAGE = 0, TYPE = NOLOAD
   .reset              : > RESET,      PAGE = 0, TYPE = DSECT
   vectors             : > VECTORS,    PAGE = 0, TYPE = DSECT

}