473,799 Members | 3,082 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

docking station serial port

I'm unable to communicate with an external modem through the serial
port of the docking station (named COM1). When I communicate with COM3
(internal modem) there aren't problem: I open the port , send AT and
receive OK. When I use COM1 I open the port , send AT and have no
answer. If then I open the port with hyperterminal I receive the
response (OK): that means the write command works, but seams the
reading buffer that .net use remain empty.
If I communicate with hyperterminal everething works right.
Any suggestion ?

thanks
notebook HP 6710b
XP SP2
framework 2.0
Nov 3 '08 #1
0 1565

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

4
9094
by: ^CeFoS^ | last post by:
Hello to everybody, I've done an application that draws in a frame the trajectory of a robot. The robot position is readed through the serial port, and several commands are wrote through the same port to change the direction of the robot. The trajectory frame is managed by an applet, and the project works good when the applet is called by a html document allocated in the same local machine under W98 where the classes and the serial port...
2
13199
by: willie | last post by:
Hi, I'm writing a program which requires the use of three serial ports and one parallel port. My application has a scanning devices on each port, which I can access fine with pyserial. However, I'm unsure of how exactly I should be designing the program, I thought I could use threading to start class: class scanner(Thread): def __init__(self,port):
13
4834
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...
4
11208
by: joe bloggs | last post by:
I am writing a mobile application to interface with a legacy system and I am planning to use web services to communicate with this system. The legacy system receives data through a serial port. What I would like to do is make the serial port accessible via a web service. The web service and the legacy application would be running on the same machine. The mobile application would access the web service via a network connection. It...
4
17825
by: Frank | last post by:
Hello, how to get information about all serial ports in the PC? I use the following code, but i got only the data of the FIRST serial port. All other serial port information are not available with this code sample: ManagementObjectSearcher searcher = new ManagementObjectSearcher("Select * from WIN32_SerialPort");
13
6213
by: Rob | last post by:
Hi all, I am fairly new to python, but not programming and embedded. I am having an issue which I believe is related to the hardware, triggered by the software read I am doing in pySerial. I am sending a short message to a group of embedded boxes daisy chained via the serial port. When I send a 'global' message, all the connected units should reply with their Id and Ack in this format '0 Ack' To be certain that I didn't miss a...
1
2516
by: steve | last post by:
Hi All Has anybody have experience with interfacing a windows application to service station petrol pumps I am planning to develop a windows application for Petrol stations using VB.net 2005 I am having trouble getting information about the signal from the petrol pumps to the PC
4
11810
by: rowan | last post by:
I'm writing a driver in Python for an old fashioned piece of serial equipment. Currently I'm using the USPP serial module. From what I can see all the serial modules seem to set the timeout when you open a serial port. This is not what I want to do. I need to change the timeout each time I do a "read" on the serial port, depending on which part of the protocol I've got to. Sometimes a return character is expected within half a second,...
2
2151
by: =?Utf-8?B?aGVyYmVydA==?= | last post by:
I need to develop a "docking station" simulator for Apple IPod in .NET. The PC acting as a development station connects to the IPod docking station using a parallel port. Where is this software available ? Where can I find the Ipod docking station specs? as an alternative, is a "docking station" library available in .NET? thank you very much
0
10490
Oralloy
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...
0
10260
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
10243
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,...
0
10030
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
1
7570
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
6809
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();...
0
5467
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...
1
4146
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
3
2941
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.