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AT89S52 doesn't work as exected.

bhagirath patadia

Hi,

I am working on a small project, for which i have created chip code, which i have tested and it works fine in Keil IDE. But the same when uploaded to chip behaves partly expected or totally unexpected. Some times the chip doesn't reset even done hardware reset.

I have checked it with 3 chips, but no success. My programmer seems fine as it is detecting attached chip and programming chip correctly.

In my project I need serial communication, which is also not working fine. Sometime the MCU skips sending or receiving characters, or doesn't respond to command event after hardware resets.

Could you please suggest me how to resolve this?

Let me know if any further information is required.

Details
AT89S52, USB Programmer, C Programming language,

Regards,

Bhagirath

Parents
  • 0 in reply to ²erik malund

    but they assume familiarity with hardware design terms.

    Unfortuately, the OP has not divulged whether he designed this hardware, or understands hardware at all.

    To the OP: remember that nobody knows anything about you, your backround, your experience, your project, etc, other than what you clearly & explicitly state in your posts.

Reply
  • 0 in reply to ²erik malund

    but they assume familiarity with hardware design terms.

    Unfortuately, the OP has not divulged whether he designed this hardware, or understands hardware at all.

    To the OP: remember that nobody knows anything about you, your backround, your experience, your project, etc, other than what you clearly & explicitly state in your posts.

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