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APM2 can't upload firmware,"Communication Error - no connection"

Posted by yingzou on May 18, 2013 at 6:20am

I tried to upload 2560 bootloader with arduino and successful. And I refresh the 32U2 bootloader to load an new 32U2 PPM firmware,The computer can tip 2560 handware,but now, APM connect computer with MP can't upload arduplane firmware,Error tip is:Communication Error - no connection;When upload firmware the RX led  flicker slowly,I reconnect and try to go CLI mode,the terminal no response. is this error is 32u2 chip and atmega2560 communication failure caused it? Please help me.Thanks a lot!


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Replies

  • Sergio Luis de Almeida August 20, 2013 at 3:35pm

    Please look this topic  http://diydrones.com/forum/topics/ardupilot-mega-2-5-communication-...

    Permalink Reply by Peter Jobbagy on May 12, 2013 at 5:34am

    Hi there! I got my apm 2.5 board at yesterday, and when i tried to update firmware first time,  I had the same issue. Several hours and attempts after i found solution to my case. I have several com port because of some bluethoot moduls. After i disabled these com port and only the arduino 2560 port left in the device management, the update run succesfuly. after disabling other port the simple connect command was faster too.

    It works for me.

  • duong ngo August 10, 2013 at 8:38pm
    Are there any solution for this error ?? anybody can fix this :(
  • Simon Arnold August 10, 2013 at 1:50pm

    Same problem here too.

  • duong ngo July 7, 2013 at 5:48pm
    I have same problem here. I have to upload firmware by wiring SPI pins and using avrstudio 4.
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