What is wrong & where - 16F877A+U2 USB programmer

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  1. - 5th May 2010, 05:43 #1
    Megahertz's Avatar
    Megahertz
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    Yes it is the one on the left. Thanks
  2. - 5th May 2010, 13:52 #2
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    Megahertz,

    Are you setting the chip in the right position like Darrel is showing you in the picture above? Pin 1 has to be in the right position. Also, try using different USB ports in your computer and even a different computer.

    Robert
  3. - 9th May 2010, 08:06 #3
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    Quote Originally Posted by rsocor01 View Post
    Megahertz,

    Are you setting the chip in the right position like Darrel is showing you in the picture above? Pin 1 has to be in the right position. Also, try using different USB ports in your computer and even a different computer.

    Robert
    Apologies for the delayed reply. Yes I am setting the chip the right way. I also tried on different computer but red led flashes on the board. I have to reconnect the USB cable around 4-5- times before it turns green and then programs the chip. Then most of the times the same story again for the next chip I want to program.
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