I O Port Error
Contents |
resources Windows Server 2012 resources Programs MSDN subscriptions Overview Benefits Administrators Students Microsoft Imagine Microsoft Student Partners ISV Startups TechRewards Events Community Magazine
C# Open Serial Port Example
Forums Blogs Channel 9 Documentation APIs and reference Dev centers Samples c# serial port open Retired content We’re sorry. The content you requested has been removed. You’ll be auto redirected in
C# Serial Port Exception Handling
1 second. System.IO.Ports SerialPort Class SerialPort Events SerialPort Events ErrorReceived Event ErrorReceived Event ErrorReceived Event DataReceived Event ErrorReceived Event PinChanged Event TOC Collapse the table of content system.io.ioexception: a device attached to the system is not functioning Expand the table of content This documentation is archived and is not being maintained. This documentation is archived and is not being maintained. SerialPort.ErrorReceived Event .NET Framework (current version) Other Versions Visual Studio 2010 .NET Framework 4 Visual Studio 2008 .NET Framework 3.5 .NET Framework 3.0 .NET Framework 2.0 Indicates that an error has occurred eltima serial port monitor with a port represented by a SerialPort object.Namespace: System.IO.PortsAssembly: System (in System.dll)Syntax C#C++F#VB Copy public event SerialErrorReceivedEventHandler ErrorReceived RemarksError events can be caused by any of the items in the SerialError enumeration. Because the operating system determines whether to raise this event or not, not all parity errors may be reported. PinChanged, DataReceived, and ErrorReceived events may be called out of order, and there may be a slight delay between when the underlying stream reports the error and when code can when the event handler is executed. Only one event handler can execute at a time.If a parity error occurs on the trailing byte of a stream, an extra byte will be added to the input buffer with a value of 126.The ErrorReceived event is raised on a secondary thread when an error is received from the SerialPort object. Because this event is raised on a secondary thread, and not the main thread, attempting to modify some elements in
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings
C# Serialport
and policies of this site About Us Learn more about Stack Overflow portmon the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only https://msdn.microsoft.com/en-us/library/system.io.ports.serialport.errorreceived(v=vs.110).aspx takes a minute: Sign up IO exception error when using serialport.open() up vote 16 down vote favorite 7 FINAL UPDATE It was our firmware the whole time. Embarrassing to a degree, but I'm happy we can move forward and I can put learning Java off for another day. My answer is below. UPDATE So I have more or less given http://stackoverflow.com/questions/14885288/io-exception-error-when-using-serialport-open up on this. I think it is a bug that goes down to the API but I have neither the time, resources nor skill-set to get to the bottom of it. I think there exists some hardware to whom Windows just gives the middle finger. I have downloaded Eclipse, switched to Java and will try to see if that works. If not, you'll see me back here. However, I would absolutely love to solve this and so if anyone has the time or inclination to dig deep into this one, I'd love to see what you come up with. Obviously I will be checking back here from time to time. Please make sure you '@' me in your comments so I am alerted. ORIGINAL POST I know there are a few other people dealing with this issue, but I was hoping someone could help me. I am trying to connect to a COM Port but I am getting an IO exception when I try to use the serialport.Open() command: System.IO.IOException: The parameter is incorrect. at System.IO.Ports.InternalResources.WinIOError(Int32 errorCode, String str) a
peripheral devices, I use serial data streams a lot. Mostly USB virtual serial posts from FTDI, but also the USB Communication Device Class and real 16550-compatible UARTs on the PCI http://www.sparxeng.com/blog/software/must-use-net-system-io-ports-serialport bus. Since looking at data through an in-circuit emulator debug interface is generally http://forum.micasaverde.com/index.php?topic=14788.0 a miserable experience, getting serial data communication with a custom PC application is essential to analyzing data quality and providing feedback on hardware designs. C# and the .NET Framework provide a rapid application development that is ideal for early development that needs to track changing requirements as hardware designs evolve. Ideal in most respects, serial port I should say. The System.IO.Ports.SerialPort class which ships with .NET is a glaring exception. To put it mildly, it was designed by computer scientists operating far outside their area of core competence. They neither understood the characteristics of serial communication, nor common use cases, and it shows. Nor could it have been tested in any real world scenario prior to shipping, without finding flaws that litter both c# serial port the documented interface and the undocumented behavior and make reliable communication using System.IO.Ports.SerialPort (henceforth IOPSP) a real nightmare. (Plenty of evidence on StackOverflow attests to this, from devices that work in Hyperterminal but not .NET because IOPSP makes setting certain parameters mandatory, although they aren’t applicable to virtual ports, and closes the port on failure. There’s no way to bypass or ignore failure of these settings during IOPSP initialization.) What’s even more astonishing is that this level of failure occurred when the underlying kernel32.dll APIs are immensely better (I’ve used the WinAPI before working with .NET, and still do when I want to use a function that .NET doesn’t have a wrapper for, which notably includes device enumeration). The .NET engineers not only failed to devise a reasonable interface, they chose to disregard the WinAPI design which was very mature, nor did they learn from two decades of kernel team experience with serial ports. A future series of posts will present the design and implementation of a rational serial port interface built upon, and preserving the style of, the WinAPI serial port functions. It fits seamlessly into the .NET event dispatch model, and multiple coworkers have expressed that it’s e
AV Control » GC100[99] : Failed to open IO Port (error message in vera blue screen) « previous next » Print Pages: [1] Author Topic: GC100[99] : Failed to open IO Port (error message in vera blue screen) (Read 2303 times) Piwtorak Hero Member Posts: 984 Karma: +4/-0 GC100[99] : Failed to open IO Port (error message in vera blue screen) « on: May 10, 2013, 06:35:25 am » Hello,,,today my vera is reporting this message in the blue top part of the screen.thanks for the helpGC100[99] : Failed to open IO Port Logged Vera3 (1), Airport Extreme (2), Apple TV (3), Sqblaster (1), GE Switch (3), GE Dimmer (1), Leviton VRCSZ2 (2), GE 45601 (1), Intermatic HA03 (2), GE Zwave Outlet (1), Remote Control Curtain (1) and growing. CMRancho Beta Testers Hero Member Posts: 1010 Karma: +1/-0 Re: GC100[99] : Failed to open IO Port (error message in vera blue screen) « Reply #1 on: May 10, 2013, 11:08:59 am » So is mine. My GC-100 and iTach both used to be rock solid. Now they are erratic. Even if they initially open a port, they lose it very soon. Logged Vera123beta; Schlage, Kwikset, TZEMT400; Linksys cams, Smarteye cams, HSM100; Aeon, Everspring, Cooper, Leviton, Intermatic, FortrezZ, Global Caché, USB-UIRT, Somfy, etc. Piwtorak Hero Member Posts: 984 Karma: +4/-0 Re: GC100[99] : Failed to open IO Port (error message in vera blue screen) « Reply #2 on: May 10, 2013, 12:26:43 pm » The mine is Itach Global Cache Dry Contact Wifiusing GC-100 plugin...past today all the day with this error on my vera and after simply the message disappeared Logged Vera3 (1), Airport Extreme (2), Apple TV (3), Sqblaster (1), GE Switch (3), GE Dimmer (1), Leviton VRCSZ2 (2), GE 45601 (1), Intermatic HA03 (2), GE Zwave Outlet (1), Remote Control Curtain (1) and growing. tecnico Newbie Posts: 9 Karma: +0/-0 Re: GC100[99] : Failed to open IO Port (error message in vera blue screen) « Reply #3 on: June 06, 2013, 10:41:15 am » Any solution to this? Logged Piwtorak Hero Member Posts: 984 Karma: +4/-0 Re: GC100[99] : Failed to open IO Port (error message in vera blue screen) « Reply #4 on: June 09, 2013, 04:28:30 pm » I do not remember what I did to solve this but tomorrow I will search on my records. Logged Vera3 (1), Airport Extreme (2), Apple TV (3), Sqblaster (1), GE