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can anybody tell me the program for a squarewave generationn...

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Question by chandana
Submitted on 1/22/2004
Related FAQ: 8051 microcontroller FAQ
Rating: Rate this question: Vote
can anybody tell me the program for a squarewave generationn using controller 89C51 and plus by using its internal timer. urgent.  

mail me at :    cjethani@hotmail.com


Answer by Pash
Submitted on 1/3/2006
Rating: Not yet rated Rate this answer: Vote
sq_wave:
  mov p1,#ffh
  call delay
  mov p1,#00h
  call delay
  sjmp sq_wave

delay:
  mov r0,#ffh
back_1:
  mov r1,#ffh
back_2:
  djnz r1,back_2
  djnz r0,back_1
  ret

end




 

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