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  4. error: "Cannot configure TxEcho for open device" QCanBusDevice
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error: "Cannot configure TxEcho for open device" QCanBusDevice

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qcanbusdevicecan bus
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  • B Babs

    Hello i'm working with QCanBusDevice class and a systeccan plugin. I create my CanDevice in my class constructor and send messages to the device using writeFrame function.
    I get the error "Cannot configure TxEcho for open device" each time i send a message.
    Can anyone help?

    aha_1980A Offline
    aha_1980A Offline
    aha_1980
    Lifetime Qt Champion
    wrote on last edited by
    #2

    Hi @Babs,

    which Qt version are you using?

    Please check with the CAN Example (you can compile and run it from QtCreator). You should not get this message on every frame write, maximum once on open().

    Regards

    Qt has to stay free or it will die.

    B 1 Reply Last reply
    2
    • aha_1980A aha_1980

      Hi @Babs,

      which Qt version are you using?

      Please check with the CAN Example (you can compile and run it from QtCreator). You should not get this message on every frame write, maximum once on open().

      Regards

      B Offline
      B Offline
      Babs
      wrote on last edited by
      #3

      @aha_1980 I'm using Qt 5.12.0.
      If i understand well i must get this error when i call setConfigurationParameter after i connect my device. I'm not doing so and setConfiguration Parameters in my class constructor before connecting the device.

      aha_1980A 1 Reply Last reply
      0
      • B Babs

        @aha_1980 I'm using Qt 5.12.0.
        If i understand well i must get this error when i call setConfigurationParameter after i connect my device. I'm not doing so and setConfiguration Parameters in my class constructor before connecting the device.

        aha_1980A Offline
        aha_1980A Offline
        aha_1980
        Lifetime Qt Champion
        wrote on last edited by
        #4

        @Babs Please check with the CAN Example and report the results here.

        Qt has to stay free or it will die.

        B 2 Replies Last reply
        0
        • aha_1980A aha_1980

          @Babs Please check with the CAN Example and report the results here.

          B Offline
          B Offline
          Babs
          wrote on last edited by
          #5

          @aha_1980 I get the same error when i try to send a message via CAN example.[link text](0_1554898958966_error.PNG link url)
          0_1554898966685_compil.PNG

          1 Reply Last reply
          0
          • aha_1980A aha_1980

            @Babs Please check with the CAN Example and report the results here.

            B Offline
            B Offline
            Babs
            wrote on last edited by
            #6

            @aha_1980 I get the same error even with the CAN example

            aha_1980A 1 Reply Last reply
            0
            • B Babs

              @aha_1980 I get the same error even with the CAN example

              aha_1980A Offline
              aha_1980A Offline
              aha_1980
              Lifetime Qt Champion
              wrote on last edited by
              #7

              @Babs Ok, but do you get it every time you send a frame or once after open?

              I need this information to fix the plugin.

              Qt has to stay free or it will die.

              B 1 Reply Last reply
              0
              • aha_1980A aha_1980

                @Babs Ok, but do you get it every time you send a frame or once after open?

                I need this information to fix the plugin.

                B Offline
                B Offline
                Babs
                wrote on last edited by
                #8

                @aha_1980 I get the error every time i send a frame.

                aha_1980A 2 Replies Last reply
                0
                • B Babs

                  @aha_1980 I get the error every time i send a frame.

                  aha_1980A Offline
                  aha_1980A Offline
                  aha_1980
                  Lifetime Qt Champion
                  wrote on last edited by
                  #9

                  Hi @Babs,

                  I just tried but I cannot reproduce your problem with Qt 5.13 Beta.

                  So please, give the exact configuration you did, otherwise it's impossible to reproduce this error.
                  0_1554919692071_892d3a58-9df4-4899-83a2-f5da2c8adb0d-grafik.png

                  My configuration:
                  0_1554919746260_47d77f82-8a22-489f-9eb3-d9dcbeb494be-grafik.png
                  Regards

                  Qt has to stay free or it will die.

                  1 Reply Last reply
                  0
                  • B Babs

                    @aha_1980 I get the error every time i send a frame.

                    aha_1980A Offline
                    aha_1980A Offline
                    aha_1980
                    Lifetime Qt Champion
                    wrote on last edited by
                    #10

                    @Babs

                    Update: I was partly able to reproduce your problem! The error happens when you open the device (one time, as I already assumed) and I pushed a fix for review: https://codereview.qt-project.org/258740

                    If everything goes well, this fix will be in Qt 5.12.4

                    Regards

                    Qt has to stay free or it will die.

                    B 1 Reply Last reply
                    2
                    • aha_1980A aha_1980

                      @Babs

                      Update: I was partly able to reproduce your problem! The error happens when you open the device (one time, as I already assumed) and I pushed a fix for review: https://codereview.qt-project.org/258740

                      If everything goes well, this fix will be in Qt 5.12.4

                      Regards

                      B Offline
                      B Offline
                      Babs
                      wrote on last edited by
                      #11

                      @aha_1980 Thanks you.
                      Regards,

                      1 Reply Last reply
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