C6657 emif flash加载问题

我按照之前的一个帖子修改了cmd文件，修改如下：

然后我又在main函数入口把load在flash的vecs段直接搬移到L2SRAM上执行 程序仿真情况下直接就跑飞，麻烦ti专家帮忙指导一下！！！

6835.KeyStone_noboot1.txt

我的main函数入口修改如下：

void main()

{

int i,ret;
memcpy(&RAM_VECT_START,&FLASH_VECT_START,(size_t)&VECT_SIZE);
BOOT_init();//初始化主频和ddr
CSL_BootCfgUnlockKicker();
//GPIO16作为普通io
*(volatile unsigned int *)(0x02620580)= 0xffff0000;
gpio_init();
EMIF16_Init();
memset(read_data,0,2048);
TSC_init(); //enable time stame counter for test
TM6657_BOARD_INIT();//gpio中断
ret = DDRTest();
while(1)；

}

interrupt void GPIOIsr()
{
//CICClearSystemEvent(SOC_CIC_0_REGS, INTC0_GPIO16_B);
flag= ~flag;
gpGPIO_regs->BANK_REGISTERS[0].OUT_DATA =flag<<16;
printf("gpio16 intc!\r\n");
*(volatile unsigned int *)(0x02600000+0x0024)= 0; //清中断
}

我要烧写的程序是裸机程序 就是上面那个main函数程序，直接烧写在0x70000000这个地址！底下那个Gpioisr程序就是中断程序；仿真时正常的，加载到板子里面他可以进入到中断子程序，但是进入2-3之后他退出就直接程序跑飞。中断向量表如下：

(GPIO_vectos.asm)

.ref _c_int00
.ref GPIOIsr
.ref Exception_service_routine
.ref exception_record
.global VECTORS

;--------------------------------------------------------------

.sect ".text"
;create interrupt vector for NMI
NMI_ISR:
STW B1,*-B15[1]

;save some key registers when exception happens
MVKL exception_record,B1
MVKH exception_record,B1

STW B3, *+B1[0]
STW A4, *+B1[1]
STW B4, *+B1[2]
STW B14, *+B1[3]
STW B15, *+B1[4]

;jump to exception service routine
MVKL Exception_service_routine, B1
MVKH Exception_service_routine, B1
B B1

LDW *-B15[1],B1
NOP 4

;--------------------------------------------------------------
;create interrupt vector for reset (interrupt 0)
VEC_RESET .macro addr
MVKL addr,B0
MVKH addr,B0
B B0
MVC PCE1,B0
NOP 4
.align 32
.endm

;create interrupt vector for other used interrupts
VEC_ENTRY .macro addr
STW B0,*--B15
MVKL addr,B0
MVKH addr,B0
B B0
LDW *B15++,B0
NOP 4
.align 32
.endm

;create interrupt vector for unused interrupts
VEC_DUMMY .macro
unused_int?:
B unused_int? ;dead loop for unused interrupts
NOP 5
.align 32
.endm

;--------------------------------------------------------------
;interrupt vector table
.sect "vecs"
.align 1024
vectors:
VEC_RESET _c_int00 ;RESET
VEC_ENTRY NMI_ISR ;NMI/Exception
VEC_DUMMY ;RSVD
VEC_DUMMY ;RSVD
VEC_ENTRY GPIOIsr ;interrupt 4
VEC_DUMMY ;interrupt 5
VEC_DUMMY ;interrupt 6
VEC_DUMMY ;interrupt 7
VEC_DUMMY ;interrupt 8
VEC_DUMMY ;interrupt 9
VEC_DUMMY ;interrupt 10
VEC_DUMMY ;interrupt 11
VEC_DUMMY ;interrupt 12
VEC_DUMMY ;interrupt 13
VEC_DUMMY ;interrupt 14
VEC_DUMMY ;interrupt 15

.end