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:ORG 0000H MOV DPTR,#TAB MOV P0,#0FFH LOP:LOOP0:MOV 20H,#9 MOV R0,#10 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;...
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,#...
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:include<reg51.h> sbit k1=P1^0;define uint16 unsigned int define uchar unsigned char uchar code shuzu[ ]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};void delay(){ uint16 i=1000;while(i--);} void main(){ uchar n ;P2=0xfe;P1=0xff;while(1){ if...
AT89c51单片机编程实现9–0循环显示数码管显示,求图求程序答:include<reg51.h>#define uchar unsigned charuchar table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f};void delay(){uchar i,j;for(i=0;i<200;i++)for(j=0;j<250;j++);}main(){uchar i;i=9;while(1){if(i>9)i=9;P1=table[i];delay();i--;}} ...
51单片机数码管显示1-19以及PMW 显示答://数码管显示0~19 include<reg52.h> define uint unsigned int define uchar unsigned char sbit wela=P2^7;sbit dula=P2^6;uchar t,shi,ge,num;uchar code table[]= {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};void init(){ t=0;TMOD=0x01;TH0=(65536-50000)/256...