Telemetry connection to Intel Edison

Posted by Philip W. Howard on June 27, 2015 at 8:10am

I have a Pixhawk that I'm trying to interface to an Intel Edison. I connect an Edison UART to one of the Pixhawk telemetry ports and I can read telemetry data just fine. But when I send commands to the Pixhawk (such as mavlink_param_request_list) they seem to be ignored. If I connect through a 3DR radio, the commands get the proper response.

Is there any reason why the interface would behave differently over the radio vs. a direct connection?

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Replies

  • Coty Wood July 6, 2015 at 9:53am

    Any luck with this?  

    • Philip W. Howard > Coty Wood July 6, 2015 at 10:05am

      No luck yet.

      I've tried both telem ports on the pixhawk with the same effect. Communicating through the 3DR radio I get 2-way communication (Pixhawk responds to commands) communicating through a hardwired serial connection, I get 1-way communication (I can listen to Pixhawk MAV messages, but it seems to ignore commands).

      Later today I was thinking of connecting an oscilloscope to the RX pin on the Pixhawk telem port to see if I can detect any difference between the direct connection and the 3DR radio connection.

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