求汇编语言的单片机跑马灯程序 要求开始可以依次亮 按一次开关 点亮方 ...答:CSEG AT 0000H LJMP START CSEG AT 401BH LJMP INT CSEG AT 4100H START: MOV A,#01H MOV R1,#03H MOV R0,#5H MOV TMOD,#10H MOV TL1,#57H MOV TH1,#9EH ORL IE,#88H SETB TR1 LOOP1: CJNE R0,#00,DISP MOV R0,#5H INC R1 CJNE R1,#27H,LOOP2 MOV R1,#03H LOOP2: ...
汇编语言跑马灯问题答:ORG 0000H LJMP MAIN ORG 000BH LJMP T0ISR ORG 0030H MAIN:MOV TMOD,#01H MOV TH0,#HIGH(65536-50000)MOV TL0,#LOW(65536-50000)SETB TR0 SETB ET0 SETB EA MOV A,#0FEH MOV R2,#10 LOOP:MOV B,R2 JB P1.0,LOOP JNB P1.0,DEC R2 CJNE R2,#1,LOOP MOV R2,#10 SJMP LOOP...
用汇编语言设计4位LED动态显示,要求4位LED每隔1S交替显示1234和5678,画...答:CJNE R2,#200,T0CON MOV R2,#0 CPL 00H JB 00H,T0RD MOV 30H,#1 MOV 31H,#2 MOV 32H,#3 MOV 33H,#4 SJMP T0CON T0RD:MOV 30H,#5 MOV 31H,#6 MOV 32H,#7 MOV 33H,#8 T0CON:MOV DPTR,#LEDTAB T000:;数字显示 MOV R0,#DAT MOV A,SCANLED ADD A,R0 MOV R0,A MOV ...