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Unable to read from QSerialPort using MSVC compiler

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qserialportmingwmsvcread serial
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  • T Turi

    @jsulm
    I have already tried all this and all seem work fine, without any error. But my application still does not read from the serial only if I use the MSVC compiler.

    jsulmJ Offline
    jsulmJ Offline
    jsulm
    Lifetime Qt Champion
    wrote on last edited by
    #12

    @Turi Did you verify that the other side sends something?

    https://forum.qt.io/topic/113070/qt-code-of-conduct

    T 1 Reply Last reply
    0
    • T Turi

      @jsulm
      I have already tried all this and all seem work fine, without any error. But my application still does not read from the serial only if I use the MSVC compiler.

      J.HilkJ Offline
      J.HilkJ Offline
      J.Hilk
      Moderators
      wrote on last edited by
      #13

      @Turi what versions are we actually talking here ?

      Qt(from the kit), msvc, windows etc.

      and can you show more of your actually class that does the serial communication?


      Be aware of the Qt Code of Conduct, when posting : https://forum.qt.io/topic/113070/qt-code-of-conduct


      Q: What's that?
      A: It's blue light.
      Q: What does it do?
      A: It turns blue.

      T 1 Reply Last reply
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      • jsulmJ jsulm

        @Turi Did you verify that the other side sends something?

        T Offline
        T Offline
        Turi
        wrote on last edited by
        #14

        @jsulm
        Yes, the other side reveives and sends messages.

        1 Reply Last reply
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        • J.HilkJ J.Hilk

          @Turi what versions are we actually talking here ?

          Qt(from the kit), msvc, windows etc.

          and can you show more of your actually class that does the serial communication?

          T Offline
          T Offline
          Turi
          wrote on last edited by
          #15

          @J-Hilk
          I'm using:

          • Qt Creator 4.9.0
          • Based on Qt 5.12.2 (MSVC 2017, 32 bit)
          • Windows 10 Enterprise

          Unfortunately I can't show more of my actually class due to the fact that is reserved code.

          jsulmJ 1 Reply Last reply
          0
          • T Turi

            @J-Hilk
            I'm using:

            • Qt Creator 4.9.0
            • Based on Qt 5.12.2 (MSVC 2017, 32 bit)
            • Windows 10 Enterprise

            Unfortunately I can't show more of my actually class due to the fact that is reserved code.

            jsulmJ Offline
            jsulmJ Offline
            jsulm
            Lifetime Qt Champion
            wrote on last edited by
            #16

            @Turi said in Unable to read from QSerialPort using MSVC compiler:

            Based on Qt 5.12.2 (MSVC 2017, 32 bit)

            This is the Qt version which was used to build QtCreator.
            What Qt version do you use?

            https://forum.qt.io/topic/113070/qt-code-of-conduct

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            • T Offline
              T Offline
              Turi
              wrote on last edited by
              #17

              Qt 5.12.3
              MinGW 7.3.0 32-bit
              MSVC 2017 32-bit

              jsulmJ 1 Reply Last reply
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              • T Turi

                Qt 5.12.3
                MinGW 7.3.0 32-bit
                MSVC 2017 32-bit

                jsulmJ Offline
                jsulmJ Offline
                jsulm
                Lifetime Qt Champion
                wrote on last edited by
                #18

                @Turi Can you try with 5.15.2?

                https://forum.qt.io/topic/113070/qt-code-of-conduct

                T 1 Reply Last reply
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                • jsulmJ jsulm

                  @Turi Can you try with 5.15.2?

                  T Offline
                  T Offline
                  Turi
                  wrote on last edited by
                  #19

                  @jsulm
                  Can you pass me a link where I can download this version?

                  jsulmJ 1 Reply Last reply
                  0
                  • T Offline
                    T Offline
                    Turi
                    wrote on last edited by
                    #20

                    I tried with Qt 5.12.2 but not work.

                    jsulmJ 1 Reply Last reply
                    0
                    • T Turi

                      @jsulm
                      Can you pass me a link where I can download this version?

                      jsulmJ Offline
                      jsulmJ Offline
                      jsulm
                      Lifetime Qt Champion
                      wrote on last edited by
                      #21

                      @Turi said in Unable to read from QSerialPort using MSVC compiler:

                      Can you pass me a link where I can download this version?

                      Use the Qt Maintenance Tool to add that Qt version to your installation.

                      https://forum.qt.io/topic/113070/qt-code-of-conduct

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                      • T Turi

                        I tried with Qt 5.12.2 but not work.

                        jsulmJ Offline
                        jsulmJ Offline
                        jsulm
                        Lifetime Qt Champion
                        wrote on last edited by
                        #22

                        @Turi said in Unable to read from QSerialPort using MSVC compiler:

                        I tried with Qt 5.12.2 but not work.

                        I seggested 5.15.2, not 5.12.2

                        https://forum.qt.io/topic/113070/qt-code-of-conduct

                        T 1 Reply Last reply
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                        • jsulmJ jsulm

                          @Turi said in Unable to read from QSerialPort using MSVC compiler:

                          I tried with Qt 5.12.2 but not work.

                          I seggested 5.15.2, not 5.12.2

                          T Offline
                          T Offline
                          Turi
                          wrote on last edited by
                          #23

                          @jsulm Sorry, my bad. With Qt 5.15.2 my application works fine. Thank you.
                          So, is this a bug of older versions?

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                          • SGaistS Offline
                            SGaistS Offline
                            SGaist
                            Lifetime Qt Champion
                            wrote on last edited by
                            #24

                            There was a bug with QSerialPort on Windows but IIRC it has been also fixed for the 5.12 series if you really need it. But you have to update to the latest release of that series.

                            Interested in AI ? www.idiap.ch
                            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                            • Christian EhrlicherC Online
                              Christian EhrlicherC Online
                              Christian Ehrlicher
                              Lifetime Qt Champion
                              wrote on last edited by
                              #25

                              Here the bug report for this issue: https://bugreports.qt.io/browse/QTBUG-78086

                              Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                              Visit the Qt Academy at https://academy.qt.io/catalog

                              1 Reply Last reply
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