发布时间 : 星期五 文章基于单片机AT89C51控制的LED点阵屏显示时钟课程设计报（精）更新完毕开始阅读a00aadd8777f5acfa1c7aa00b52acfc789eb9fe2
INC R4 LCALL DELAY DJNZ R5,LOOP11
MOV A,32H ;显示要显档的数字
MOV B,#08H MUL AB MOV 3BH,A MOV R4,#00H MOV R5,#08H LOOP22: MOV A,3BH MOV DPTR,#TABE MOVC A,@A+DPTR MOV P2,R4 MOV P0,A MOV P1,#0FBH INC 3BH INC R4 LCALL DELAY DJNZ R5,LOOP22
MOV A,33H ;显示要显档的数字
MOV B,#08H MUL AB MOV 3BH,A MOV R4,#00H MOV R5,#08H LOOP33: MOV A,3BH MOV DPTR,#TABE MOVC A,@A+DPTR MOV P2,R4 MOV P0,A MOV P1,#0F7H INC 3BH INC R4 LCALL DELAY DJNZ R5,LOOP33
MOV A,34H ;显示要显档的数字
MOV B,#08H
MUL AB MOV 3BH,A MOV R4,#00H MOV R5,#08H LOOP44: MOV A,3BH MOV DPTR,#TABE MOVC A,@A+DPTR MOV P2,R4 MOV P0,A MOV P1,#0EFH INC 3BH INC R4 LCALL DELAY DJNZ R5,LOOP44 POP PSW POP ACC RET
DELAY: MOV 37H,#50 DEL: MOV 38H,#4
DJNZ 38H,$ DJNZ 37H,DEL RET TABE: ;0
DB 00H,18H,24H,24H,24H,24H,18H,00H ;1
DB 00H,10H,30H,10H,10H,10H,38H,00H ;2
DB 00H,18H,24H,04H,18H,20H,3CH,00H ;3
DB 00H,18H,24H,18H,04H,24H,18H,00H ;4
DB 00H,08H,18H,28H,7CH,08H,08H,00H ;5
DB 00H,1CH,10H,18H,04H,24H,18H,00H ;6
DB 00H,18H,24H,38H,24H,24H,18H,00H ;7
DB 00H,3CH,28H,08H,10H,10H,10H,00H