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    Micro Processors - Tag - questions - EngineersHub
    Tag results found for "Micro Processors" in Questions.
    Question
    Pisini Yagna Venkata Bhanu Pradeep
    4 months ago
    1 Answer(s) posted Write an answer 274
    Answer
    Read Mode
    Answer posted by Manish Matta
    4 months ago

    PROGRAMMING  STEPS OF THE COUNTER AND TIMER OF THE 8051 MICRO CONTROLLER :

    1. Load the TMOD register indicating which timer is used and which MOD is to be selected.

    2.               Load TL & TH with initial count values.

    3.               Start the timer.

    4.               Keep monitoring the TF flag come out of the loop when TF = 1.

    5.               Stop the timer.

    6.               Clear the TF flag to continue the next counting.

    7.               Again reload TH & TL.

    EXAMPLE PROGRAM:

             MOV TMOD,#o1H

    BACK: MOV TL0,#F2

              MOV TH0,#FFH

        CPL P1.0

        LCALL DELAY

       SJMP BACK

    DELAY: SETB TR0

    AGAIN: JNB TF0,AGAIN

    CLR TRO

    CLR TFO

    RET

    0
    Question
    Pisini Yagna Venkata Bhanu Pradeep
    4 months ago
    0 Answer(s) posted Write an answer 278
    Question
    Pisini Yagna Venkata Bhanu Pradeep
    5 months ago
    0 Answer(s) posted Write an answer 280

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