Debug Problem with ARM LPC2103

[KVSN]

I am new to ARM. I am usig LPC2103 controller.i wrote simple stratup code to my project.but it does not work.  When I debug the program, struk in PLL what for lock loop in startup code.

my code like this

 

void SYS_INIT()

{

PLLCFG =0X02; 

PLLCON=0X01;     //enable pll

PLLFEED=0xAA;   // feed sequence

PLLFEED=0x55;

while(!(PLLSTAT & 0x0400));  // wait for is PLL is locked

PLLCON=0x03;

PLLFEED=0xAA;

PLLFEED=0x55;

APBDIV=0x01;

}

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