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Unable To Open Com Port Error 5


more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Ah well who knows, in 10 years from now. The same thing happens here: gmeter-wattcher.py 83 84 # open up the FTDI serial port to get data transmitted to xbee 85 ser = serial.Serial(SERIALPORT, BAUDRATE) 86 ser.open() 87 Just delete I down loaded Pronterface and Sfact again and unzipped the Sfact in the same map as the Pronterface. check over here

If not, you'd instead >>> see the name of the process that has "stolen" the >>> com port. >>> >>> virtualbox.exe pid: 1234 ComputerName\UserID >>> E0: File (---) \Device\VCP0 >>> >>> Generated Fri, 23 Dec 2016 01:49:03 GMT by s_hp94 (squid/3.5.20) The many options and load sequences and prerequisites have left me a little confused. Filter by category This button does not work with screen readers.

Unable To Open Com Port Windows 7

What baudrate do you have set in your firmware? That's what makes it harder >>> to track down. >>> >>> These are some names for COM ports, in Windows. VMware? share|improve this answer answered May 24 '11 at 4:09 Eli Bendersky 125k50257334 add a comment| up vote 6 down vote accepted I figured it out.

  1. You need to know the naming >>> convention for virtual COM ports (COM4 via USB to serial, is >>> more virtual than physical).
  2. ASP.NET is not authorized to access the requested Jay, Aug 3, 2007, in forum: ASP .Net Replies: 2 Views: 1,266 Jay Aug 20, 2007 [pyserial - winXP] Serial port stop receiving
  3. http://virtuatopia.com/images/6/60/Virtualbox_serial_port_settings.jpg Also, Windows (as a host), is notorious for stealing control of COM ports.
  4. Tip: You can access the Windows "Device Manager" to see which COM port number was assigned to the programming cable.

World War III? You must specify the process by its PID. However, they > don't keep the port open, so it doesn't affect the ability of user > applications to later open the port. > >> Thanks, I think I read that Unable To Open Com Port 2 Here's the link where I read about calling ser.close() before ser.open() ...

I thought you > could have COM 4 in the host OS, and make it COM 1 or COM 2 in > the guest. Failed To Open Com Port Sp Flash Tool I don't think that behavior has been enabled by default for a > long time. > > If that were the case, then your terminal program wouldn't be able to > Be methodical whale you are trouble shutting, do not get frustrated. If not, post the smallest failing program you can come up with, and somebody will be able to help.

The last two entries, are my USB to serial adapters. Unable To Open Com Port Windows 10 However, why is it that TeraTerm can open the serial port? I shut down removed the drive and restarted, this solved the problem and I can now communicate. I now understand how to setup the Ponterface environment.

Failed To Open Com Port Sp Flash Tool

You were correct, I had the wrong COM port. Adam, Jun 27, 2012 #10 Grant Edwards Guest Re: PySerial could not open port COM4: [Error 5] Access is denied -please help On 2012-06-27, Adam wrote: > The Python script Unable To Open Com Port Windows 7 But one of > my other machines, has a real COM port on the SuperI/O chip, > so the entries for that would involve the word "serial" in some > way. Unable To Open Com Port Win Error Code 2 Try handle -a > allhand.txt Then open the allhand.txt with Notepad and look for interesting entries. ******* I tested right now, and first opened a session in HyperTerminal with one of

World War III? > at No thanks! > gmail.com Obviously pySerial considers the serial port open and will not open an already open serial port. check my blog GSM-Forum > Product Support Sections > No More Supported Solutions (Dead Products) > No More Supported H/W Products > Matador Engine Products > AlcaBull unable to open com port win error I'd have to look it back up when I have the time, which I >>> don't have at the moment, unfortunately. > > What they're referring to is that on startup, So this is solved. Failed To Open Com Port Flash Tool

The system returned: (22) Invalid argument The remote host or network may be down. Please use the previous link instead. The "hypertrm" one, is me using the >> built-in Windows terminal software, to talk to COM3, >> to keep the port artificially busy for the purposes >> of testing. >> >> http://blacklex.com/to-open/unable-to-open-com-port-win-error-123.html I'll help you get >started... > >Does this program work? > > import serial > ser = serial.Serial("COM4") > ser.close() > >At the moment, I don't have access to a Windows

https://github.com/adafruit/Tweet-a-Watt/downloads Click on the "Download as ..." button for the Python scripts Adam, Jun 28, 2012 #18 Grant Edwards Guest Re: PySerial could not open port COM4: [Error 5] Access Unable To Open Connection To Com3 Unable To Open Serial Port Board index The team • Delete all board cookies • All times are UTC - 5 hours Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group current community chat Stack My laptop does not have a serial >>> port so >>> I use a USB-to-serial converter, which is assigned COM4. >>> >> Doesn't VirtualBox allow "remapping" serial ports ?

I don't see anything in that snipping, which looks like a serial port.

When running under the Windows operating system, CHIRP remembers and automatically selects the previously used COM port. This will cause Windows to install the USB device driver again and then assign a different COM port than the one that was assigned to the previously used USB port. Yes, that's right ... Unable To Open Connection To Com1 Unable To Open Serial Port name Search for handles to objects with (fragment accepted).

Even Windows software, when you run it, would report "COM 4 is busy". Bob Morrison Wörth am Rhein, Germany "Luke, use the source!" BLOG - PHOTOS - Thingiverse Reply Quote Dobert Re: Problem with Ponterface printer interface January 18, 2012 01:06AM Registered: 4 years b. have a peek at these guys If things were working well in your case, you *might* see something of this form.

If the Controller is working it should just be a Matter of getting the right COM port and Baud rate setting in the Printer ‘Interface program’ to get it to work. History #1 Updated by Jim Unroe over 2 years ago Status changed from New to Feedback It sounds like you have the wrong COM port selected. IOW, try to find the smallest possible program that fails.