Home > Is Denied > Access To The Port Com1 Is Denied Windows 7

Access To The Port Com1 Is Denied Windows 7


It means the Close() call was successful. My answer is, No. zahidaoui Newbie Posts: 17 Karma: 0[add] Access to the port 'COM4' is denied #1 Jan 06, 2013, 03:46 pm I am using arduino, and I made an ASP.net page to communicate tobyb121 Sr. Source

Preserving Vertices Why isn't the religion of R'hllor, The Lord of Light, dominant? Let's see! Member Posts: 254 Karma: 11[add] Re: Access to the port 'COM4' is denied #13 Jan 06, 2013, 08:25 pm Hmmm, ignore my last post for the moment, I'm running IIS 7 This is the program I have: var serialPortModule = require("serialport"); var firstComPortName; serialPortModule.list(function (err, ports) { ports.forEach(function(port) { firstComPortName = port.comName; }); console.log(firstComPortName); if (firstComPortName) { try { var SerialPort = http://stackoverflow.com/questions/7219653/why-is-access-to-com-port-denied

Access To The Port Com1 Is Denied Windows 7

Change this code: SerialPort port = new SerialPort("COM2", 9600, Parity.None, 8, StopBits.One); port.Open(); port.Write(reader.ReadElementContentAsString() + ","); To: using (SerialPort port = new SerialPort("COM2", 9600, Parity.None, 8, StopBits.One))) { port.Open(); port.Write(reader.ReadElementContentAsString() + To grant ASP.NET access to a file, right-click the file in Explorer, choose "Properties" and select the Security tab. This is easy to do. When just executing require [path/to/lib] directly in the console I'm seeing the same behavior.

I've tried running node as administrator. The time now is 03:00 PM. serialPort.list(); reports all of the ports on the system successfully. Windows 10 Com Port Access Denied Heres the code at the end of the thread.

Thread Status: Not open for further replies. Try unplugging and replugging the device between runs. Generalization of winding number to higher dimensions Can this number be written in (3^x) - 1 format? This will isolate the serial connection and help you figure out where the problem is located.

What is a non-vulgar synonym for this swear word meaning "an enormous amount"? Com Port Access Denied Arduino I tried using the "auto detect" in the HDR software and got the same access denied message for each com port and baud rate speed. I'm going to give the ideas you both mentioned a try -- I never tried changing the baud rate for the com ports. (Also I did purchase the Icom CI-V interface Not the answer you're looking for?

  • In Windows XP, the O/S system overrides any installed software parameters and has the final say.
  • You may have to register or Login before you can post: click the register link above to proceed.
  • All contents are copyright of their authors.
  • Yes, should not be any problem....do a combination of 'GetCommState()' and 'SetCommState()' (first retrieve the actual parameters, change the ones you need and set them back...
  • Gammon Software Solutions Re: Access to the port 'COM4' is denied #14 Jan 06, 2013, 08:53 pm Please don't cross post!

Access To The Port 'com4' Is Denied

The garbage collector is not collecting the first SerialPort object before you try to open another handle to it. Personal Open source Business Explore Sign up Sign in Pricing Blog Support Search GitHub This repository Watch 150 Star 2,512 Fork 547 EmergingTechnologyAdvisors/node-serialport Code Issues 40 Pull requests 3 Projects Access To The Port Com1 Is Denied Windows 7 No new comments. System.unauthorizedaccessexception Access To The Port Is Denied You will need to write some code to ensure that only one thread is trying to access the port at a given time.

Killing the node-webkit process and restarting it seems to solve the issue with the port being inaccessible. this contact form Consider granting access rights to the resource to the ASP.NET request identity. Brian Reply With Quote December 3rd, 2004,06:42 AM #4 Gyannea View Profile View Forum Posts Member Join Date Dec 2002 Location Candia, NH Posts 374 Re: Found cause I found an Error!" The installed software settings don't take over and control the O/S system settings. Unable To Open Serial Port Com1 Access Is Denied

durst99 commented Feb 2, 2016 I'm having also this issue. COM1 port works just fine for the first time Open(). A USB-serial adapter might contain this sort of thing in its driver. have a peek here To reproduce it, open an active port, and once it starts receiving data, close it.

I tried using the "auto detect" in the HDR software and got the same access denied message for each com port and baud rate speed. Primopdf Exception Access To The Port Is Denied Probably an open port from a downstream error. Please give me any solution.

Graphlex 4x5 Lens Hood and Filters - How Do They Mount?

Taxiing with one engine: Is engine #1 always used or do they switch? I'm absolutely sure port 14 is the right port. ASP.NET has a base process identity (typically {MACHINE}\ASPNET on IIS 5 or Network Service on IIS 6 and IIS 7, and the configured application pool identity on IIS 7.5) that is Access To The Port Is Denied Iis It happens when I try to recreate an instance of a serial port.

olecom commented Feb 3, 2015 #333 (comment) var fs = require('fs'); var inp = fs.createReadStream("\\\\.\\COM8"); inp.setEncoding('utf8'); var inptext = ""; inp.on('data', function (data) { inptext += data; }); Lucky man. Authentication Error for ABBY Ocr Sdk! My Best, Charles - KC8VWM Last edited: Apr 6, 2009 KC8VWM, Apr 6, 2009 #3 W4DHX Premium Subscriber QRZ Page Thanks for the quick replies, I'm using Windows XP as Check This Out Click "Add" to add the appropriate user or group.

Thanks a tonn John.For every Test, I had to create an instance of class, and I was doing:1) serialPort = new SerialPort(xx, xx, ...)2) if (!serialPort.IsOpen()) serialPort.Open()3) And, while destructing Application Lifecycle> Running a Business Sales / Marketing Collaboration / Beta Testing Work Issues Design and Architecture ASP.NET JavaScript C / C++ / MFC> ATL / WTL / STL Managed C++/CLI The Resources tab enables the idea of changing or reassigning the IRQ settings. Port list is showing the port.

Optional Password I have read and agree to the Terms of Service and Privacy Policy Please subscribe me to the CodeProject newsletters Submit your solution! i just didn't know which category my question best goes. The one that appears after plugging in the cable is the Com port you want to use. Try killing the iis process (I think it's called w3wp.exe) and checking that your code will always close the serial port after each transaction, and this will hopefully work!!!So you will

And I don't know how to do it can you tell me please. –user140003 Jul 20 '09 at 13:35 It is too difficult to describe here, please see this Please re-subscribe to our Newsletters. share|improve this answer answered Jul 20 '09 at 13:51 R Ubben 2,086127 add a comment| up vote 1 down vote There's probably something else using COM1 (auto sync programs tend to The port is probably already open or the context that your code is is running under does not have access to the resource.

Browse other questions tagged c# xml serial-port or ask your own question. All contents are copyright of their authors. 12,676,925 members (28,191 online) Sign in Email Password Forgot your password? Why does the U-2 use a chase car when landing?