流水灯

xiaofu · 发表于 2013-10-3 20:50:11

为什么流水灯运行时数码管也会显示  ：

#include <hidef.h>
#include <MC9S12XS128.h>
#pragma LINK_INFO DERIVATIVE "mc9s12xs128"
/****************延时函数************************/
#define delay(n) \
{ \
unsigned int i,j; \
  for(i=0;i<n;i++) \
   for(j=0;j<600;j++); \
}
/*****************超频函数***********************/
void chaopin(void)
{
  CLKSEL=0X00;
  PLLCTL_PLLON=1;
  SYNR =0xc0 | 0x07;
  REFDV=0xc0 | 0x01;
  POSTDIV=0x00;
  _asm(nop);
  _asm(nop);
  _asm(nop);
  _asm(nop);
  while(!(CRGFLG_LOCK==1));
  CLKSEL_PLLSEL =1;
}

/*****************主函数***********************/
void main(void)
{
  DDRA=0X00;
  DDRB=0XFF;
  DDRM=0XFF;
  DDRJ=0XFF;
  DDRS=0XFF;
  DDRE=0XFF;
  chaopin();
  delay(900) ;
  PTS_PTS2=1;
  PORTE=0x00;
  PTM_PTM0=1;
  PTM_PTM1=1;

  for(;;)
  {
PTJ_PTJ7=1;
PTJ_PTJ7=1;
PORTB=0xfe;
delay(500);
PORTB=0xfd;
delay(500);
PORTB=0xfb;
delay(500);
PORTB=0xf7;
delay(500);
PORTB=0xef;
delay(500);
PORTB=0xdf;
delay(500);
PORTB=0xbf;
delay(500);
PORTB=0x7f;
delay(500);

PORTB=0x7f;
delay(500);
PORTB=0xbf;
delay(500);
PORTB=0xdf;
delay(500);
PORTB=0xef;
delay(500);
PORTB=0xf7;
delay(500);
PORTB=0xfb;
delay(500);
PORTB=0xfd;
delay(500);
PORTB=0xfe;
delay(500);

  }

}