Serial communication ports

There are many methods and solutions that can help you test and troubleshoot serial ports. As you can see, Serial Port Tester by Electronic Team stands out for its powerful and versatile functionality. This serial port test tool can be used not only as a great alternative to HyperTerminal but also as a great solution for development and debugging of serial apps and hardware. Eltima IBC uses cookies to personalize your experience on our website. By continuing to use this site, you agree to our cookie policy.

Click here to learn more. Olga Weis Sep 21, Serial Port Testing Software is a professional utility that gives developers a centralized place to record and display the data going through all tested serial ports. Serial Port Monitor. Download day fully-functional trial period. Let's look at 3 main use cases. There you should select the visualizer that will display captured serial data to you. Also, you can start the monitoring session in new window by enabling the corresponding option.

Common serial port problems How to log RS activity. How to compare serial port testing sessions After you have saved the monitoring session, you can compare it with another session to see the differences. Resend the same data to a serial port In order to test whether the problem in your serial network is fixed, you can reproduce the communication between a COM port and a serial app or device. How to perform an RS loopback test A loopback test is a diagnostic test in which the signal returns to the transmitter after passing through the communication channel in both directions.

Below you can see the pinout of a common serial connector, DE For a loopback test with no hardware flow control marked red in Fig.

For a loopback test with a hardware flow control marked blue in Fig. Loopback Test in HyperTerminal HyperTerminal is a program that allows your PC to function as a computer terminal and connect with other systems remotely. Select the icon for your connection. Specify the communications port that will be tested. Now lets declare an event handler to handle the event. The code to manipulate the read data can be specified here.

In my example the RFID tag had 12 letters value and only one card need to be read till a particular operation is completed. So, I have set a condition to close the port if string variable has length of Actually RFID readers can read more than tags per minute. Then you can store the values in some array and according to your need you can manipulate them.

I insist that you should use condition as the above code for a tag [HGGBVVV] may return values of one letter at a time and it will be very fast. So to make sure that a tag has been read completely find the length and use the condition to do some operation or read another tag.

Now, you can't assign the value read directly to a textbox in the same event handler as it will throw some exception. You have to use the Invoke method to call your method, which can do the appending work in case of my program or manipulation work in your problem etc.

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NET Framework in Winforms. I understand the inconvenience you faced. I certainly help you with this issue. This issue could have occurred due to corrupt Chipset Drivers. I would suggest you to try to uninstall and reinstall latest chipset drivers from manufacturer website in compatibility mode and check. Follow the steps to install drivers in compatibility mode.

Right click on the setup file of the driver and select Properties b. Select Compatibility Tab. Place a check mark next to Run this program in Compatibility mode and select the operating system accordingly from the drop down list.

Let the driver to install and then check the functionality. Select Run as administrator. Now if you expand the section on COM ports, all the COM ports that have ever been created will be displayed, the non present ones being in grey. I hope this helps. Let us know the status of the issue so that we can assist you better. How satisfied are you with this reply?