Re: [問題] keilc uVision的問題

[dexders (（￣﹁￣；）)]

#include        <reg51.h>
#define LED     P2

void delay(unsigned int x);

unsigned char output[]={0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80};
main()
{
 unsigned char i ;
 LED=0xfe;
        while(1)
        {
                for(i=0;i<7;i++)
            {
                        delay(100);
                LED=~output[i];
        }
        for(i=7;i>0;i--)
        {
                        delay(100);
                LED=~output[i];
                }
        }
}

void delay(unsigned int x)
{
        unsigned int i,j;
        for (i=0;i<x;i++)
        for (j=1;j<=600;j++);
}


試試看這樣


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