51单片机控制数码管循环显示0-9程序答:采用共阴极LED数码管,51单片机P1口输出数据:ORG 0000H JMP MAIN ORG 0100H MAIN:MOV DPTR,#TAB MOV R1,#00H DISP:MOV A,R1 MOVC A,@A+DPTR MOV P1,A LCALL DELAY INC R1 CJNE R1,#0AH,DISP SJMP TAB: DB 3FH,06H,5BH,4FH,66H,6DH,7DH,07H,7FH,6FHDELAY: MOV R4,#...
单片机 用51单片机显示一个数码管轮流显示9到0再从0到9每隔一秒出现一 ...答:LOOP1:MOV A,20H; 9-0 MOVC A,@A+DPTR MOV P0,A DEC 20H CALL DELL;YANSHI DJNZ R0,LOOP1 MOV 20H,#0;0-9 MOV R0,#10 LOOP2:MOV A,20H; 0-9 MOVC A,@A+DPTR MOV P0,A INC 20H CALL DELL;YANSHI DJNZ R0,LOOP2 AJMP LOP TAB:DB 0C0H,0F9H,0A4H,0B0H,99H,92H,82H,...
51单片机c语言设计,按键控制数码管,依次按下显示0到9循环?答:假设你的是共阳极数码管,P0接数码。按键接P2^0;include<reg52.h> typedef unsinged int uint;sbit key=P2^0;unsigned char tab[]={0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};void denay(uint x){ uint i,j;for(i=x;i>0;i--)for(j=110;j>0;j--)} void main(){ u...