| |
by: M. Raab |
last post by:
i have written an application that utilizes serail ports. In order not to
have to reinvent code, I decided to use John Hind's sample code that he
presented in MSDN magazine last year (Serial Comm: Use P/Invoke to Develop a
..NET Base Class Library for Serial Device Communications John Hind - MSDN
Magazine - October 2002)
it works fine except for one problem. i cannot address any port higher than
COM9. I am using an equinox multi-serial...
|
by: Al the programmer |
last post by:
I need to access the serial ports on my webserver from an asp.net page. I
have no problem accessing the serial ports from a windows form application,
but the code doesn't work in asp.net. I have been told it is not possible to
access the serial ports from asp.net.
The application is used to control custom hardware. The hardware is
connected to a PC through serial ports. Our customer wants to control the
hardware from a remote...
|
by: David |
last post by:
I have written an application in VB.NET 2003 that uses the SAX serial
component for RS232 communications with hardware.
The program sets up 2 serial ports so that it can talk to 2 different
hardware devices simultaneaously.
When I run the program on a desktop running Windows 2000 it works fine. When
I run it on a Laptop using XP I start having problems.
It seems that when the ports are initiated, either one will work but not the
|
by: henrycortezwu |
last post by:
Hi All,
I'm trying to connect to a virtual port (COM19, OUTGOING, "Bluetooth
Serial Port") using VS2005 System.IO.Ports.
When I ran the ff code below here's what happens.
1) VS2005 Compiles w/o errors
2) My Nokia 6600 prompted me the message "Accept Connection request
from DEMON?"
note: DEMON is my computers name.
3) Using my Nokia 6600, I hit the button that refers to the "Yes"
|
by: Tom Brown |
last post by:
Hey people,
I've written a python app that r/w eight serial ports to control eight devices
using eight threads. This all works very nicely in Linux. I even put a GUI on
it using PyQt4. Still works nicely.
Then I put the app on on a virtual Windows machine running inside of vmware on
the same Linux box. Vmware only lets me have four serial ports so I run the
app against four serial ports using four threads. The app did not respond...
|
| |
by: LongBow |
last post by:
Hello,
Is there a way, in .NET, to determine what are the avialable Serial
(Communications) Ports on a Windows OS and is there a way to determine
that port isn't being use other than attempting to opening the Serial
Port and catching the associated exception? Thanks
If there isn't a way to determine the Serial Port within .NET I would
be willing, I guess, to use a WinAPI is that was the only way.
|
by: joaquimfpinto |
last post by:
Dear All,
I made an app in c# that uses several serial ports.
For the serial ports I use a pnp Sunix board, some with 8 serial ports
other with 4 or even 2 serial ports.
Whenever I use the development computer I don't have ay problem with
my application.
|
by: naveen.sabapathy |
last post by:
Hi,
I am trying to use virtual serial ports to develop/test my serial
communication program. Running in to trouble...
I am using com0com to create the virtual ports. The virtual ports
seem to be working fine when I test it with Hyperterminal .
I am using the example program that comes with pyserial, as below.
---------------
import serial
|
by: Nasif |
last post by:
Currently I am writing a program which sends and receives messages
through serial port to a device. I am using C# and Microsoft Visual
studio 2005 for windows program. But my problem is when i try to write
in serial port from my windows a Timeoutexception is thrown. I use
SerialPort class in System.IO.Ports and for writing port i used
write() function under the built in class SerialPort. But when i use
hyperterminal , everything goes fine....
|
by: Dave Harry |
last post by:
I'm using the following code to determine the available serial ports:
ComboBoxPort.Items.Clear()
For Each sp As String In My.Computer.Ports.SerialPortNames
ComboBoxPort.Items.Add(sp)
Next
It worked well in XP, but under Vista (now with SP1) the Bluetooth ports
don't show correctly.
We have half a dozen different brands and types of Bluetooth on various
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
| |
by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
|
by: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
|
by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
| |
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
|
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
|
1
