8155扩展io口的问题

ID:145601 · 发表于 2016-11-2 10:35

不知道哪里除了问题仿真不能看到结果灯都是灰的
电路和代码都检查了，也没查出是哪里出了问题

# include <absacc.h>
# define PORTA XBYTE[0X7F01]
# define CONTROL XBYTE[0X7F00]
void delaylong(void);
void delayshort(void) ;
void main(void)
{

   CONTROL=0X03;//éè¶¨1¤×÷·½ê½
   PORTA=0X01;//1Ø±ÕËùóDLED

   while(1)
   {
            PORTA=0X36;//ÄÏ±±Âì￡¬¶«Î÷oì
            delaylong();
            PORTA=0X37;//¶«Î÷oì
            delayshort();
            PORTA=0X35;//ÄÏ±±»Æ￡¬¶«Î÷oì       ÄÏ±±»ÆμÆéáμú1′Î
            delayshort();
            PORTA=0X37;//¶«Î÷oì
            delayshort();
            PORTA=0X35;//ÄÏ±±»Æ￡¬¶«Î÷oì       ÄÏ±±»ÆμÆéáμú2′Î
            delayshort();
   PORTA=0X37;//¶«Î÷oì
            delayshort();
            PORTA=0X35;//ÄÏ±±»Æ￡¬¶«Î÷oì       ÄÏ±±»ÆμÆéáμú3′Î
            delayshort();
   PORTA=0X1B;//¶«Î÷Âì￡¬ÄÏ±±oì
   delaylong();
            PORTA=0X3B;//ÄÏ±±oì
   delayshort();
   PORTA=0X2B;//¶«Î÷»Æ￡¬ÄÏ±±oì       ÄÏ±±»ÆμÆéáμú1′Î
   delayshort();
   PORTA=0X3B;//ÄÏ±±oì
   delayshort();
   PORTA=0X2B;//¶«Î÷»Æ￡¬ÄÏ±±oì       ÄÏ±±»ÆμÆéáμú2′Î
   delayshort();
   PORTA=0X3B;//ÄÏ±±oì
   delayshort();
   PORTA=0X2B;//¶«Î÷»Æ￡¬ÄÏ±±oì       ÄÏ±±»ÆμÆéáμú3′Î
   delayshort();
   }
}
//Ñóê±oˉêy
void delaylong()
{
   unsigned  j,k,m;
   for(j=0;j<30000;j++);
   for(k=0;k<30000;k++);
   for(m=0;m<30000;m++);
   for(j=0;j<30000;j++);
   for(k=0;k<30000;k++);
   for(m=0;m<30000;m++);
   for(j=0;j<30000;j++);
   for(k=0;k<30000;k++);
   for(m=0;m<30000;m++);


}

void delayshort()
{
   unsigned  j,k;
   for(j=0;j<30000;j++);
   for(k=0;k<30000;k++);
}