I made a Delphi application that transmits data to COM port every second. The COM port is a virtual null-modem (com0com) between the data transmitting software and a VirtualBox machine. Everything is fine, but if nothing is listeninig at the other end Host Windows becomes increasingly unresponsive.
Unresponsive Windows if nothing is picking up COM port data
165 Views Asked by Paul At
1
There are 1 best solutions below
Related Questions in DELPHI
- How can I read the header of request to webserver
- Receiving Notifications for Individual Task Completion OmniThreadLibrary Parallel.ForEach
- Delphi - How to get result of function from QuickReport without viewing a report?
- Out of memory while adding documents to a Firebird BLOB field with Delphi
- How to MakeScreenshot fullpage on Delphi
- How to program a COM object with an IEnumerator, IEnumerable interface inside
- How to Dynamically Add Controls to Delphi Form
- How to write a string in Stringrid with DelimitedText in FMX Delphi 11
- TGrid/TStringGrid multi cell selection / multi editing in delphi firemonkey (12)
- How to localize "Today" in the Delphi TMonthCalendar?
- How can I call a SOAP webserver method in Vue.js?
- Efficiently Handling Large Number of API Calls with Delphi 10.4 and OmniThreadLibrary
- Delphi can not compile the unit create by its "XML Data Binding Wizard"
- Save Form Properties in File and then restore those Properties after reopening
- Is it possible to open a blob without saving it to file
Related Questions in SERIAL-PORT
- Nonin Oximeter 3231
- How would I go about filtering non-standardly formatted serial data which contains some junk binary between data entries?
- SerialPort timeouts in ReadChar() method, WPF, "The operation has timed out."
- Rust tokio_serial: async fn readable does not block execution. Runs with 100% CPU load
- Why is there a large ploting delay/lag in my real-time serial port ploting app after more than 10000 datapoints reading?
- I get "DevTools was disconnected from the page" error when connecting Arduino to the computer and switching between tabs
- RS422 communication using PySerial (Raspberry PI)
- Python script becomes unresponsive at 100% CPU usage (single core)
- Redirecting stdin and stdout to the same device in shell
- C# System.IO.Ports throws System.IO.Ports is currently only supported on Windows, but i'm currently using windows
- C# COM Port slowing down to read one byte a second after sending message
- What are the differences between a windows serial port and a macos serial port using NodeJS?
- How to increase baudrate on Device Manager Windows?
- Nextion with Arduino change text
- no console after using :wq in vim
Related Questions in COM0COM
- C#: Wrapping SerialPort.BaseStream in StreamReader seemingly unable to deal with only CR as NewLine
- Creating A Virtual RS-485 Null Modem
- Creating a pair of virtual serial ports within a Docker container
- Serial Port Communication problem while using UART
- Com0Com create ports from command prompt
- Any way to lockdown a virtual comm port to a specific baud rate?
- How to make com0com ports appear as real physical port?
- UWP doesn't connect to virtual serial port
- Unresponsive Windows if nothing is picking up COM port data
- com0com virtual port does not open by UWP
- Creating a pair between a real and virtual serial port
- com0com and pyserial virtual serial ports. Can this be used to simulate unplugging a serial usb device?
- Accessing virtual com ports inside a WS2016 docker container
- Closing Windows (virtual) Serial Ports - how long does the OS take to free them?
- Setting com0com friendly names
Trending Questions
- UIImageView Frame Doesn't Reflect Constraints
- Is it possible to use adb commands to click on a view by finding its ID?
- How to create a new web character symbol recognizable by html/javascript?
- Why isn't my CSS3 animation smooth in Google Chrome (but very smooth on other browsers)?
- Heap Gives Page Fault
- Connect ffmpeg to Visual Studio 2008
- Both Object- and ValueAnimator jumps when Duration is set above API LvL 24
- How to avoid default initialization of objects in std::vector?
- second argument of the command line arguments in a format other than char** argv or char* argv[]
- How to improve efficiency of algorithm which generates next lexicographic permutation?
- Navigating to the another actvity app getting crash in android
- How to read the particular message format in android and store in sqlite database?
- Resetting inventory status after order is cancelled
- Efficiently compute powers of X in SSE/AVX
- Insert into an external database using ajax and php : POST 500 (Internal Server Error)
Popular # Hahtags
Popular Questions
- How do I undo the most recent local commits in Git?
- How can I remove a specific item from an array in JavaScript?
- How do I delete a Git branch locally and remotely?
- Find all files containing a specific text (string) on Linux?
- How do I revert a Git repository to a previous commit?
- How do I create an HTML button that acts like a link?
- How do I check out a remote Git branch?
- How do I force "git pull" to overwrite local files?
- How do I list all files of a directory?
- How to check whether a string contains a substring in JavaScript?
- How do I redirect to another webpage?
- How can I iterate over rows in a Pandas DataFrame?
- How do I convert a String to an int in Java?
- Does Python have a string 'contains' substring method?
- How do I check if a string contains a specific word?
After I went from com0com to pure hardware solution the problem disappeared. Also my application in virtual machine stopped to hang regularly.