单片机课程设计
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发布时间：2022-04-24 06:57
共3个回答
热心网友
时间：2022-06-17 05:49
刚给一个兄弟做的
KEYVALEQU 30H
KEYTMEQU 31H
KEYSCANEQU 32H
DATEQU 33H
SCANLEDEQU 39H
CLKEQU 77H
SECEQU 78H
MINEQU 79H
HOUREQU 7AH
PAUSEBIT 00H
DOTBIT 01H
ORG 0000H
LJMP MAIN
ORG 000BH
LJMP T0ISR;50ms定时
ORG 001BH
LJMP T1ISR;扫描显示
ORG 0030H
MAIN:
MOV SP,#5FH
MOV TMOD,#11H
MOV TH0,#03CH
MOV TL0,#0B0H
MOV TH1,#0ECH
MOV TL1,#078H
MOV KEYVAL,#0
MOV SCANLED,#0
MOV 33H,#10H
MOV 34H,#10H
MOV 35H,#10H
MOV 36H,#10H
MOV 37H,#10H
MOV 38H,#10H
MOV SEC,#0
MOV MIN,#0
MOV HOUR,#0
MOV CLK,#0
CLR PAUSE
SETB EA
SETB ET1
SETB TR1
LOOP:
LCALL KEYSEL
MOV A,KEYVAL
CJNE A,#0FFH,LOOP1
SJMP LOOP
LOOP1:
CJNE A,#10,LOOP2;“ON”启动
SETB TR0
SETB ET0
SETB PAUSE
SJMP LOOP
LOOP2:
CJNE A,#11,LOOP3;“=”清零
MOV SEC,#0
MOV MIN,#0
MOV HOUR,#0
LCALL DISCHG
SJMP LOOP
LOOP3:
CJNE A,#15,LOOP4;“+”暂停
CLR TR0
CLR ET0
CLR PAUSE
SJMP LOOP
LOOP4:
CJNE A,#14,LOOP5;“-”清显示暂停
MOV 33H,#10H
MOV 34H,#10H
MOV 35H,#10H
MOV 36H,#10H
MOV 37H,#10H
MOV 38H,#10H
CLR TR0
CLR ET0
CLR PAUSE
SJMP LOOP
LOOP5:
CJNE A,#10,LOOP6;数字键
LOOP6:
JC LOOP7
LJMP LOOP
LOOP7:
JNB PAUSE,LOOP8;暂停状态可以输入数字键
LJMP LOOP
LOOP8:
MOV 33H,34H
MOV 34H,35H
MOV 35H,36H
MOV 36H,37H
MOV 37H,38H
MOV 38H,KEYVAL
MOV A,34H
SWAP A
ORL A,33H
LCALL BCDH
MOV HOUR,A
MOV A,36H
SWAP A
ORL A,35H
LCALL BCDH
MOV MIN,A
MOV A,38H
SWAP A
ORL A,37H
LCALL BCDH
MOV SEC,A
LJMP LOOP
;------------------
;BCD转换为十六进制
BCDH:
MOV B,#10H
DIV AB
MOV R7,B
MOV B,#10
MUL AB
ADD A,R7
RET
;------------------
;十六进制转换为BCD
HBCD:
MOV B,#10
DIV AB
SWAP A
ORL A,B
RET
;------------------
KEYSEL:
MOVKEYVAL,#0
MOVKEYSCAN,#0EFH
LCALLGETKEY
MOVA,KEYTM
JZKEYS1
MOVKEYVAL,A
SJMPKEYRTN
KEYS1:
MOVKEYSCAN,#0DFH
LCALLGETKEY
MOVA,KEYTM
JZKEYS2
CLRC
ADDA,#4
MOVKEYVAL,A
SJMPKEYRTN
KEYS2:
MOVKEYSCAN,#0BFH
LCALLGETKEY
MOVA,KEYTM
JZKEYS3
CLRC
ADDA,#8
MOVKEYVAL,A
SJMPKEYRTN
KEYS3:
MOVKEYSCAN,#7FH
LCALLGETKEY
MOVA,KEYTM
JZKEYRTN
CLRC
ADDA,#12
MOVKEYVAL,A
KEYRTN:
LCALL CHGKEY
RET
;--------------------
GETKEY:
MOV KEYTM,#0
MOVA,KEYSCAN
MOVP3,A
NOP
MOVA,P3
ANLA,#0FH
XRLA,#0FH
JZNOKEY
MOV R2,#10
LCALL DELAY
MOVA,P3
ANLA,#0FH
XRLA,#0FH
JZNOKEY
MOVA,P3
ANLA,#0FH
MOVR7,A
SF:
MOVA,P3
ANLA,#0FH
XRLA,#0FH
JNZSF
MOVA,R7
CJNEA,#0EH,NK1
MOVKEYTM,#1
SJMPNOKEY
NK1:
CJNEA,#0DH,NK2
MOVKEYTM,#2
SJMPNOKEY
NK2:
CJNEA,#0BH,NK3
MOVKEYTM,#3
SJMPNOKEY
NK3:
CJNEA,#07H,NOKEY
MOVKEYTM,#4
NOKEY:RET
;--------------------
DELAY:
MOV R3,#50
DELAY1:
MOV R4,#100
DJNZ R4,$
DJNZ R3,DELAY1
DJNZ R2,DELAY
RET
;--------------------
T0ISR:
PUSH ACC
CLR TR0
MOV TH0,#3CH
MOV TL0,#0B0H
SETB TR0
INC CLK
MOV A,CLK
CJNE A,#20,T0ISRE
MOV CLK,#0
INC SEC
MOV A,SEC
CJNE A,#60,T0ISRE
MOV SEC,#0
INC MIN
MOV A,MIN
CJNE A,#60,T0ISRE
MOV MIN,#0
INC HOUR
MOV A,HOUR
CJNE A,#24,T0ISRE
MOV SEC,#0
MOV MIN,#0
MOV HOUR,#0
T0ISRE:
LCALL DISCHG
POP ACC
RETI
;--------------------
DISCHG:
MOV A,HOUR
LCALL HBCD
PUSH ACC
ANL A,#0FH
MOV 34H,A
POP ACC
ANL A,#0F0H
SWAP A
MOV 33H,A
MOV A,MIN
LCALL HBCD
PUSH ACC
ANL A,#0FH
MOV 36H,A
POP ACC
ANL A,#0F0H
SWAP A
MOV 35H,A
MOV A,SEC
LCALL HBCD
PUSH ACC
ANL A,#0FH
MOV 38H,A
POP ACC
ANL A,#0F0H
SWAP A
MOV 37H,A
RET
;--------------------
T1ISR:
PUSH ACC
CLR TR1
MOV TH1,#0ECH
MOV TL1,#78H
SETB TR1
MOV DPTR,#LEDTAB
T100:
MOV R0,#DAT
MOV A,SCANLED
ADD A,R0
MOV R0,A
MOV A,SCANLED
JNZ T101
MOV P2,#01H
CLR DOT
SJMP T1DIS
T101:
DEC A
JNZ T102
MOV P2,#02H
SETB DOT
SJMP T1DIS
T102:
DEC A
JNZ T103
MOV P2,#04H
CLR DOT
SJMP T1DIS
T103:
DEC A
JNZ T104
MOV P2,#08H
SETB DOT
SJMP T1DIS
T104:
DEC A
JNZ T105
MOV P2,#10H
CLR DOT
SJMP T1DIS
T105:
MOV P2,#20H
CLR DOT
T1DIS:
MOV A,@R0
MOVC A,@A+DPTR
JNB DOT,T1DIS1
ORL A,#01H
T1DIS1:
CPL A
MOV P0,A
INC SCANLED
MOV A,SCANLED
CJNE A,#6,T1END
MOV SCANLED,#0
T1END:
POP ACC
RETI
;--------------------
CHGKEY:
MOV A,KEYVAL
JZ KV16
DEC A
JNZ KV01
MOV KEYVAL,#7
RET
KV01:
DEC A
JNZ KV02
MOV KEYVAL,#4
RET
KV02:
DEC A
JNZ KV03
MOV KEYVAL,#1
RET
KV03:
DEC A
JNZ KV04
MOV KEYVAL,#10
RET
KV04:
DEC A
JNZ KV05
MOV KEYVAL,#8
RET
KV05:
DEC A
JNZ KV06
MOV KEYVAL,#5
RET
KV06:
DEC A
JNZ KV07
MOV KEYVAL,#2
RET
KV07:
DEC A
JNZ KV08
MOV KEYVAL,#0
RET
KV08:
DEC A
JNZ KV09
MOV KEYVAL,#9
RET
KV09:
DEC A
JNZ KV10
MOV KEYVAL,#6
RET
KV10:
DEC A
JNZ KV11
MOV KEYVAL,#3
RET
KV11:
DEC A
JNZ KV12
MOV KEYVAL,#11
RET
KV12:
DEC A
JNZ KV13
MOV KEYVAL,#12
RET
KV13:
DEC A
JNZ KV14
MOV KEYVAL,#13
RET
KV14:
DEC A
JNZ KV15
MOV KEYVAL,#14
RET
KV15:
DEC A
JNZ KV16
MOV KEYVAL,#15
RET
KV16:
MOV KEYVAL,#0FFH
RET
;--------------------
LEDTAB:DB 0FCH;"0"00H
DB 60H;"1"01H
DB 0DAH;"2"02H
DB 0F2H;"3"03H
DB 66H;"4"04H
DB 0B6H;"5"05H
DB 0BEH;"6"06H
DB 0E0H;"7"07H
DB 0FEH;"8"08H
DB 0F6H;"9"09H
DB 0EEH;"A"0AH
DB 3EH;"B"0BH
DB 9CH;"C"0CH
DB 7AH;"D"0DH
DB 9EH;"E"0EH
DB 8EH;"F"0FH
DB 00H;" "10H
;--------------------
END
热心网友
时间：2022-06-17 05:50
2.电子日历 4.数字电压表设计 都简单，都有完整的。
热心网友
时间：2022-06-17 05:50
老兄啊，你这问题放了很就都没人会答了里，你也不给点动力，编程不是问题，可编了之后还要将程序用手机打字啊，手机不给力啊，你给的分也太抠了吧
