Write an 8051 ALP for rate generation using Timer0/Timer1 by using

a. Polling method

ORG 0000H

MOV P1,#00H

MOV TMOD,#10H

L1:

MOV TH1,#0FEH

MOV TL1,#034H

CPL P1.3

SETB TR1

HERE: JNB TF1,HERE

CLR TF1

CLR TR1

SJMP L1

END

b. ISR method

ORG 0000H

SJMP MAIN

ORG 000BH

CPL P1.3

RET

MAIN:  

CLR TF0

MOV IE,#82H

MOV P1,#00H

MOV TMOD,#01H

MOV TH0,#000H

MOV TL0,#000H

SETB TR0

WAIT: SJMP WAIT

END