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11)SERIAL COMMUNICATION- A |
ORG 000H |
SJMP MAIN |
MAIN:MOV TMOD,#20H |
MOV TH1,#-6 |
MOV SCON,#50H |
SETB TR1 |
AGAIN: MOV SBUF,#”A” |
HERE:JNB TI, HERE |
CLR TI |
SJMP AGAIN |
END |
12)VIT UNIVERSITY |
ORG 0000H |
SJMP MAIN |
MAIN: MOV DPTR,#3000H |
MOV TMOD,#20H |
MOV RO,#0EH |
MOV TH1,#0FDH |
MOV SCON,#50H |
SETB TR1 |
UP:CLR A |
MOVC A,@A+DPTR |
AGAIN:MOV SBUF,A |
HERE:JNB T1, HERE |
CLR TI |
INC DPTR |
DJNZ R0,UP |
SJMP $ |
ORG 3000H |
DB ‘VIT UNIVERSITY’ |
END |
13) |
ORG 0000H |
MOV TMOD,#20H |
MOV SCON, #50H |
SETB TR1 |
HERE: JNB RI,HERE |
MOV A,SBUF |
MOV P1,A |
CLR RI |
SJMP HERE |
END |
14) PROGRAM THAT CONTINUOUSLY SENDS 8 BIT DATA FROM |
P0 TO P1 WHILE CREATING A SQUARE WAVE OF 200US PERIOD |
ON PIN P2.1. USE TIMER 0 |
ORG 0000H |
LJMP MAIN |
ORG 000BH |
CPL P2.1 |
RETI |
ORG 0030H |
MAIN:MOV TMOD,#02H |
MOV P0,#0FFH |
MOV TH0,#-92 |
MOV IE,#82H |
SETB TRO |
BACK:MOV A, P0 |
MOV P1,A |
SJMP BACK |
END |
15)GENERATE TWO WAVES FOR DUTY CYCLE 40% AND 70% |
USING INTERRUPT |
ORG 0X000 |
MOV TMOD,#01H |
MOV TH0,#0FDH |
MOV TH0,#0F0H |
MOV TH1,#0C9H |
MOV TL1,#0C7H |
MOV TCON,#52H |
MOV P1,#00H |
MOV P2,#00H |
SETB ET0 |
SETB ET1 |
SETB EA |
MAIN: LOOP: |
SJMP MAIN-LOOP |
TIME Q0-ISR |
CLR TF0 |
MOV TH0,#0FDH |
MOV TL0,#0FDH |
CPL P1.0 |
RETI |
TIME Q1-ISR |
CLR TF1 |
MOV TH1,#0C7H |
MOV TL1,#0C7H RETE |
CPL P2.0 |
END |
16)WAVEFORM THAT GENERATES (ON-50MS, OFF-80MS) |
ORG 0000H |
LJMP MAIN |
ORG 000BH |
DJNZ R0,TEN |
MOV R0,#36H |
JB P1.1,0HN |
DJNZ R2,TEN |
MOV R2,#8 |
SETB P1.1 |
CPL P0.1 |
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