problem with atmel 89c2051 circuit

Discussion in 'Embedded Systems and Microcontrollers' started by pradeep koderi, Nov 13, 2011.

  1. pradeep koderi

    Thread Starter New Member

    May 31, 2008
    5
    0
    dear collegues,

    written a code in C language using keil programming tool.
    compiled the same and saved in .hex file.Downloaded the
    program and assembled remaining passive components as detailed in 89c2051 datasheet.
    Noticed that all the output pin in microcontroller remains in high state.
    made reset and checked the crystal.All seems to be OK.

    Kindly provide suggestions in this regards.

    Pradeep
    :confused:
     
  2. RiJoRI

    Well-Known Member

    Aug 15, 2007
    536
    26
    Insufficient data.

    --Rich
     
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