problem with ATMEGA 32U4 controller

Discussion in 'The Projects Forum' started by vivek20055, Apr 24, 2013.

  1. vivek20055

    Thread Starter Member

    Nov 4, 2012
    88
    0
    Hi,

    I am working on Atmega 32u4 controller.
    I have a problem with the controller in my circuit.
    My controller is not detecting when the usb is plugged in.
    I checked the Vcc,GND and crystal oscillator connections which are perfect.

    Is there any other connections which I need to check to figure out the problem.

    This controller is having the factory default boot loader or I need to dump the boot loader for the working of the controller.

    Regards
    Vivek Alaparthi
     
  2. kubeek

    AAC Fanatic!

    Sep 20, 2005
    4,670
    804
    Please post a schematic of how you have it connected right now.
     
    aws505 likes this.
  3. vivek20055

    Thread Starter Member

    Nov 4, 2012
    88
    0
    Hi,

    I am adding the schematic here
    The pdf contains the controller circuit on the right hand side on the top

    please check it and give comments on it
     
    Last edited: Apr 25, 2013
  4. OldSkoolEffects

    Member

    Nov 18, 2009
    68
    1
    This chip apparently needs some massaging to get it reading correctly. I have one on a https://www.sparkfun.com/products/11098 and had to follow their tutorial to get things working correctly.
     
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