程序没有执行 程序

hlhfootball

#include <hidef.h>      /* common defines and macros */
#include <mc9s12dg128.h>     /* derivative information */
#pragma LINK_INFO DERIVATIVE "mc9s12dg128b"

#include"sci.c"

 

void main(void) {
 /* put your own code here */
unsigned int AdValue;

DDRB=0XFF;

EnableInterrupts;
 
ATD0CTL2=0X83; //Normal ATD functionality,
               //cause the associate CCF flag to clear automatically
ATD0CTL3=0X04;//Conversion Sequence Length IS 8 BIT,Continue conversion
ATD0CTL4=0X00;
ATD0CTL5=0X00;//10-bit / left justified / unsigned - bits 6-15
              //Single conversion sequence,Sample only one channel.AN0

SCI0Init();

while(ATD0STAT0_SCF) {
AdValue=ATD0DR0;

WritedataToSCI0(AdValue,2);
PORTB_BIT0!=PORTB_BIT0;
ATD0CTL5=0X00;

}
}

以上是我写的程序，但是它没进入while条件判断语句，能指点一下吗，谢谢！

[此贴子已经被作者于2007-7-28 21:28:04编辑过]