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如圖的4個(gè)8*8拼成的16*16點(diǎn)陣，我想讓這個(gè)點(diǎn)陣的箭頭從左下角向左上角移動(dòng)，但不知為什么，最上面一排LED會(huì)跟隨著亮，求解答
- #include<reg51.h>
- sbit LE1=P3^6;
- sbit LE2=P3^7;
- typedef unsigned char uint8_t;
- typedef unsigned char bool;
- typedef unsigned short int uint16_t;
- typedef unsigned int uint32_t;
- typedef unsigned long int uint64_t;
- uint64_t pattern[]={
- 0x7f000000,0x3f000000,0x1f000000,0x3f000000,
- 0x7f000000,0xfb000000,0x71000000,0x20000000
- };
- void delay(uint16_t n)
- {
- while(n--);
- }
- int main (void)
- {
- char Startpos,Endpos;
- char abovesign;
- uint8_t loop;
- uint8_t times;
- uint16_t dat;
- while(1)
- {
- for(abovesign=-1;abovesign<=22;abovesign++)
- {
- Startpos=0x10-(uint8_t)abovesign;
- Endpos=Startpos+7;
- for(times=0;times<=50;times++)
- {
- for(loop=0x00;loop<=0x0f;loop++)
- {
-
- if(loop>=Startpos&&loop<=Endpos)
- {
- dat=(pattern[loop-Startpos]>>abovesign)>>8;
- }
- else
- {
- dat=0x0000;
- }
- P2&=0x00;
-
- P3&=0xf0;
- delay(2);
- P3|=loop;
-
-
-
-
- P2&=0x00;
-
- LE1=1;
- P2|=(uint8_t)(dat);
- delay(3);
- LE1=0;
- delay(2);
-
- P2&=0x00;
-
- LE2=1;
- P2|=(uint8_t)(dat>>8);
- delay(3);
- LE2=0;
- delay(2);
-
- }
- }
- delay(10);
- }
- }
- return 0;
- }
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