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You are here: Home / Topics / 89c51 microcontroller doesn’t work

89c51 microcontroller doesn’t work

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Microcontroller › 8051 › 89c51 microcontroller doesn’t work

  • This topic has 1 reply, 2 voices, and was last updated 12 years, 3 months ago by AJISH ALFRED.
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  • August 26, 2013 at 2:24 am #2603
    ramesh
    Participant

    hi, i use 89c51 microcontroller for waterlevel project for hobby, project works for 1 week then after 1 week it doesn’t work after reset it works again. i provided power supply continuous for 1 week. does it hamper microcontroller?

    August 26, 2013 at 4:28 am #10377
    AJISH ALFRED
    Participant

    Hi Ramesh,

    You’ve done industrial level test with your hobby project. Hobby project are not meant for permanent installation or 24*7 running. 

    There could be many reasons and the first thing that comes to my mind is the oscillator issue. The low quality crystals may stop working properly after a long period of continuous operation. That’s the reason why the microcontrollers have internal oscilators also. If there is an option to switch between internal and external oscillator incase any of them fails, you must enable that option.

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