HE910/EVK2 Main UART Not responding anymore

4 thoughts on “HE910/EVK2 Main UART Not responding anymore

  1. I am using the HE910 on theEVK2 board.  I am using the USB to serial drivers and have the USB cable connected from my PC to the EVK2 PCB.  I have been sending AT commands successfully through Hyperterminal for weeks with no issue.  A couple days ago, I attempted a copy and paste to host and inadvertantly did a Select All of my entire Hyperterminal session.  This caused the serial port to freeze.

     

    Now, when I connect the USB cable, the com ports appear ok, but when I type into Hyperterminal, my typing is no longer echoed back to the screen and the program locks up after I type the first few characters of my AT command.

     

    I tried using the DB9 RS232 connector and get the same result.  I also tried using RSTerm and it locks up too.

     

    Can anyone please suggest a method for me to get my COM ports communicating again?

     

    Regards,

    Kurt

     

    1. I supposed the serial interface got weird settings, maybe inadvertent hardware flow control? I suggest to perform a firmware upgrade to freshen the module.

       

      1. Cosmin,

         

        Can you direct me to the download location for the HE910/EVK2 firmware and instructions on how to do the upgrade?

         

        Regards,

         

        Kurt