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T0H EQU 30H
T0L EQU 31H
ORG 0000H
LJMP MAIN
ORG 000BH
LJMP T0ISR
ORG 0030H
MAIN:
MOV SP,#5FH
MOV TMOD,#01H
SETB ET0
SETB EA
LOOP:
MOV DPTR,#FREQ
MOV A,P2
MOV R1,#0 //é«ä½é®æªæä¸åºå=0
ANL A,#03H
JB ACC.0,LOOP01
MOV R1,#14 //ä¸é³é®æä¸åºå=14
SJMP LOOP0
LOOP01:
JB ACC.1,LOOP0
MOV R1,#28 //é«é³é®æä¸åºå=28
LOOP0:
JB P0.0,LOOP1
MOV A,R1 //â1âé®æä¸
MOVC A,@A+DPTR
MOV T0H,A
INC DPTR
MOV A,R1
MOVC A,@A+DPTR
MOV T0L,A
LJMP LOOP
LOOP1:
JB P0.1,LOOP2
MOV A,R1 //â2âé®æä¸
ADD A,#2
MOVC A,@A+DPTR
MOV T0H,A
INC DPTR
MOV A,R1
ADD A,#2
MOVC A,@A+DPTR
MOV T0L,A
LJMP LOOP
LOOP2:
JB P0.2,LOOP3
MOV A,R1 //â3âé®æä¸
ADD A,#4
MOVC A,@A+DPTR
MOV T0H,A
INC DPTR
MOV A,R1
ADD A,#4
MOVC A,@A+DPTR
MOV T0L,A
LJMP LOOP
LOOP3:
JB P0.3,LOOP4
MOV A,R1 //â4âé®æä¸
ADD A,#6
MOVC A,@A+DPTR
MOV T0H,A
INC DPTR
MOV A,R1
ADD A,#6
MOVC A,@A+DPTR
MOV T0L,A
LJMP LOOP
LOOP4:
JB P0.4,LOOP5
MOV A,R1 //â5âé®æä¸
ADD A,#8
MOVC A,@A+DPTR
MOV T0H,A
INC DPTR
MOV A,R1
ADD A,#8
MOVC A,@A+DPTR
MOV T0L,A
LJMP LOOP
LOOP5:
JB P0.5,LOOP6
MOV A,R1 //â6âé®æä¸
ADD A,#10
MOVC A,@A+DPTR
MOV T0H,A
INC DPTR
MOV A,R1
ADD A,#10
MOVC A,@A+DPTR
MOV T0L,A
LJMP LOOP
LOOP6:
JB P0.6,LOOP7
MOV A,R1 //â7âé®æä¸
ADD A,#12
MOVC A,@A+DPTR
MOV T0H,A
INC DPTR
MOV A,R1
ADD A,#12
MOVC A,@A+DPTR
MOV T0L,A
LJMP LOOP
LOOP7:
CLR TR0
LJMP LOOP
;-----------------------------
T0ISR:
CLR TR0
MOV TH0,T0H
MOV TL0,T0L
SETB TR0
CPL P3.0
RETI
;-----------------------------
FREQ:
DB 0F2H,03DH ;ä½é³1
DB 0F3H,0BDH ;ä½é³2
DB 0F5H,014H ;ä½é³3
DB 0F5H,0B1H ;ä½é³4
DB 0F6H,0D0H ;ä½é³5
DB 0F7H,0D1H ;ä½é³6
DB 0F8H,0B5H ;ä½é³7
DB 0F9H,01EH ;ä¸é³1
DB 0F9H,0DEH ;ä¸é³2
DB 0FAH,08AH ;ä¸é³3
DB 0FAH,0D8H ;ä¸é³4
DB 0FBH,068H ;ä¸é³5
DB 0FBH,0E8H ;ä¸é³6
DB 0FCH,05AH ;ä¸é³7
DB 0FCH,08FH ;é«é³1
DB 0FCH,0EFH ;é«é³2
DB 0FDH,045H ;é«é³3
DB 0FDH,06CH ;é«é³4
DB 0FDH,0B4H ;é«é³5
DB 0FDH,0F4H ;é«é³6
DB 0FEH,029H ;é«é³7
;-----------------------------
END
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