CCS/TMS320C6657: Bios can't start

Tool/software: Code Composer Studio

My DSP development board input clock changed from 100MHz to 62.5Mhz，My DSP's PLL and DDR PLL configuration have changed accordingly.

Now when using the emulator（JTAG），The BIOS can boot and everything works fine.

But since the auto-startup, the main function works fine, but the BIOS_start function cannot be executed.

What is the reason?

the main function is:

EVM_init();

nand6657 = (PLATFORM_DEVICE_info*)malloc(sizeof(int)*50);

if(nand6657)
printf("that is ok");
else
printf("not enough memory");

if(!(nandInit()))
{
printf("init failed");
}

nand6657->width = 8;
nand6657->spare_size = 64;
nand6657->column = 2048;

NandGetDetails(nand6657);

gpioInit();

emifinit();

Hwi_disable();

hwiCreate();

Hwi_enable();

BIOS_start();