Keywords: Serial port communication in Windows 7 using Hyper-terminal and Putty, Putty, Hyper terminal in Windows 7 Some times you need to access serial port of your PC/LAPTOP to perform some actions like if you want to connect a GSM modem or if you are an Embedded systems programmer then to access program or interface your micro-controllers to your system. If you are performing these tasks on either Windows or Linux then you will requires some program that can communicate with your hardware and system. In the old days, Windows used to be provided Hyper terminal but now from Windows Vista they don’t provide such a tool, could not understand the reason though. ? How ever you can still use Hyper terminal in Windows 7 as well as you can use other freely available serial communication utilities like Putty. Putty is a great and free tool and available for both Windows and Linux platforms.
Before I start please note that:. If your system does not have any serial port, you can still use a USB-to-Serial adapter When you buy a USB-to-Serial port adapter you will get a driver for it as well. This driver makes a virtual serial port in your system.
In Windows, serial port named as COM port. If you want to use Hyper terminal than you have to download. If you want to use Putty than download this file from. Now you have to follow below steps to communicate with your device: Step – 1: Connect your device with your system through RS-232 cable or USB-to-Serial adapter and check whether it’s connected successfully or not. (see step 2) Step – 2: Open device manager and check for COM ports, it get assigned a COM port or not. See below screen shot. If you are not aware about accessing device manager then follow Step – 3: Note down the “COM port number” as we will require it.
Step – 4: Check user manuals or other reference documents related to your hardware for the following information: Baud Rate Data bits Stop bits Parity Flow control Above properties are critical to make the communication correctly, if you don’t configure these properties properly then you will get either junk data or no data. If you are going to use Hyper terminal than follow Step-5 to Step-9 otherwise follow Step-10 to Step-12. Serial Communication using Hyper Terminal Step – 5 a Extract the downloaded “hypertermina.rar” file in your system, open the “Hyper terminal” folder and double click on hyper terminal application. You should see the window like the screen shot given below.
Step – 5 b Insert a name for the connection, for ex. Step – 5 c Select your “COM” i.e Serial port. Step – 5 d You will see the window like below screen shot. Set the values, you noted before remember i.e.
According to your device requirements. Step – 5 e Now you are ready to communicate with your device. I am inserting a screen shot which shows a messages received by the device. Step – 6 a By default you wont see the character you type,but if want to see the character you type that is going to received by your device then you have to click on ‘properties’, you will see the window like below: Step – 6 b Click on “settings”, you will see the window like below, click on ‘ASCII Setup’. Step-6 c Select “Echo typed character locally”, see screen shot below: Step – 7 a If you want to receive a file from your device the click on ‘settings’, then select ‘Receive file’ option.
Step – 7 b Choose the receiving protocol whatever your device support, see attached screen shot. Step – 8 If you want to send a file, then select “Send file” option and sending protocol.
Step – 9 Similarly you can capture the text and save it in a file. Serial Communication using Putty Step – 10 Double click on downloaded ‘Putty.exe’, you will see a window like this: Step – 11 Select ‘serial’, insert com port and baud rate value and click on ‘Serial’ (Left pan), you will see a window look like this: Step – 12 Enter all the setting according your device and then click on open, Step -13 After clicking on ‘open’, you will see a window like this, now you are ready to communicate with your device.
Putty is much more than a simple serial port communication tool, I will cover more on Putty in my future post. For now, that’s all now you can communicate with your device using serial port, Please like and share if you find it useful.
HI, First check whether your PC has a serial port or not. If not then you have to use an USB to RS232 converter cable.
Install the driver from the cd of USB-2-RS232 converter into your PC. It’s provide a virtual serial port to use. Now connect RS232 part to your device and USB part to your PC. Power up the weight machine and open a hyper-terminal or any other serial port utility or software provided by the machine vendor and start the communication.
Configure serial port properties according the user manual of your weight machine. To know about serial port settings read the full post. Hope it’ll help you.
Have a nice day!!!
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Dear thanks for you source code and clear explanations about codes, i am using VS 2005 and i used your cods but it was not work, i send errors in the below: 1- Build started: Project: hello, Configuration: Debug Win32 - 1Compiling. Hello, I have generated my code in eclipse ide. The code seems to running fine. I am able to open the serial port and able to receive the data too. But I am facing issues with the writing part. The application seems to getting stuck at WriteFile function.
I tried checking the value of the status returned by this function but code seems to be getting stuck in WriteFile function itself as it never reaches the next part of the code. Below is my implementation of WriteFile function in which transmitBuffer is a char type array. RetVal = WriteFile(portHandle, transmitBuffer, 10, &bytesTransmitted, NULL); Can somebody help??. or to post comments.
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Screen-shot of the Termite utility Termite is an easy to use and easy to configure RS232 terminal. It uses an interface similar to that of 'messenger' or 'chat' programs, with a large window that contains all received data and an edit line for typing in strings to transmit. Highlights of the utility are the ease of installation (possibly with pre-configured settings) using a heuristic search for the appropriate COM port and, as was mentioned, its user-friendliness. Other features are:. for pre-processing or alternative views of the data, logging received data to a file, adding a toolbar to Termite, keyboard macros, and other functionality that you may think of. A that you typed, with auto-completion.
Resizeable main window, with a 'keep window on top' option, multilingual user interface. Ability to run with from a read-only medium (no installation is necessary). Support for (MIDI, DMX512). Different colouring for transmitted and received data (blue=transmitted, green=received). Data can be.
Search dialog for transmitted/received text (right-click pop-up menu). the contents of the transmitted/received text (right-click pop-up menu). Downloads & license Termite 3.3 is copyrighted software that is free for personal and commercial use. Beginning crossword clue. You may use it and distribute it without limitations.
You may however not remove or conceal the copyright. There are no guarantees or warranties whatsoever; use it at your own risk. The example plug-in filters are distributed under the. (294 KiB) A self-extracting setup that contains Termite and all plug-ins and documentation (but excluding the source code for these plug-ins). This setup is provided to conveniently and quickly install Termite. (Note that Termite does not require installation, but it may just be convenient to do so.) (76 KiB) Termite RS232 terminal in a ZIP archive. Just unzip and run; Termite writes nothing in the registry, no installation or uninstallation is required.
(3.2 MiB) The allows showing control characters as characters, rather than as. No installation of this font is needed; just unzip the font into the same directory as where Termite resides. (36 KiB) A filter that adds a time-stamp to received data. For those who want to write their custom plug-in filter(s), the commented source code that this ZIP file also contains may serve as a starting point. (32 KiB) A filter that shows the received data as a hex dump instead of as plain text, and that also allows you to send non-ASCII bytes by typing hexadecimal values on the transmit line. This ZIP file contains a compiled filter as well as commented source. (41 KiB) A filter that shows any received text that matches one of several patterns in a different (user-selectable) colour.
The patterns are regular expressions. This ZIP file contains a compiled filter as well as commented source. It uses the for matching regular expressions.
The source code for the is not included in the above ZIP file, and must be downloaded separately. (27 KiB) This plug-in filter shows the status of the auxiliary modem and handshaking lines (CTS, DSR, RI and CD) and it allows you to toggle the RTS and DTR lines. The ZIP file contains a compiled filter as well as commented source code. (34 KiB) This plug-in filter writes all data that it receives to a log file (new data is appended to existing data).
The ZIP file contains a compiled filter as well as commented source code and project files for Microsoft Visual Studio. (28 KiB) This plug-in filter transmits a user-defined string of text on the press of a function key (keys F1 to F12 are currently supported). The ZIP file contains a compiled filter as well as commented source code. (40 KiB) This plug-in filter checks the incoming text or data for keywords or patterns.
Serial Console Server
When it detects such a pattern, it automatically transmits a user-defined reply. The 'pattern' used for matching is regular expression. A series of such match/reply rows can be used to handle a simple handshake protocol.
The ZIP file contains a compiled filter as well as commented source code. This filter uses the for matching regular expressions. The source code for the is not included in the above ZIP file, and must be downloaded separately. (70 KiB) Programmer's documentation (Adobe Acrobat format).
(92 KiB) A guide to add a translation of the user interface of Termite (Adobe Acrobat format). Recent changes (version 3.3). Reception of a “backspace” character is now handled by erasing the character left of the cursor. Some products update a counter or a progress meter by sending a few backspace characters to erase the “old” status before overwriting it with the new status. Termite restores the size and position of its window on start-up from the last time it was started. It now also checks whether the window would fit on the (virtual) desktop, as to avoid that Termite might move itself off screen when the display settings change.
There is a new option in the timestamp filter: put a timestamp on every new line (regardless of the interval at which the lines arrive). When data is forwarded from one port to another, by default it is forwarded unmodified. A filter may now optionally request to sit in between the forwarding, so that it can modify the data going from one port to another. BUG fixes in the filters for “auto-reply” and “function keys”, plus a fix for a potential buffer-overrun in the “highlight” filter.
Usage Termite focuses on text data, and specifically text that is sent and received as strings terminated with 'new-line' characters. It has no provisions for transferring files or binary data. (That said, with the 'hexadecimal view' plug-in, you can send and receive bytes as hexadecimal values, and you may write a 'plug-in' filter for file transfer as well). The user interface of Termite, here pictured with the active The interface of the Termite program has one large (initially empty) text area, which is called the 'reception view'. Above it is a set of buttons in a 'button bar' and below it is a 'transmit' line into which you can type a line of text. The utility automatically opens the RS232 port for which it was set up. It shows the current configuration at the left in the button bar.
If these are not correct, you can use the button Settings to choose a different port or configuration. The Settings dialog also allows you to enable/disable 'local echo' and/or to append a line termination to every string that you send. Received bytes with values below ASCII 32 (the space character) are displayed as either a control character like, or as two hex characters between square brackets. So 08 stands for the 'backspace' character and 1B is the Escape key. There is an exception for the tab, carriage return and line feed characters (ASCII 9, 13 and 10 respectively); these cause spacing ( tab) or a line break. Whether you see the control character or 08 for the backspace key, depends on whether the is present and configured in the settings.
If you wish to send a non-ANSI/ASCII character, you need the 'hexadecimal view' plug-in filter, see 'Downloads' above. After connecting a serial cable between the PC and the remote device (or remote PC, in which case you must use a null-modem cable) and configuring the port, you can send data by typing text in the transmit line and pressing the 'Enter' key. Any data that the remote device sends, will appear in the reception view. Optionally, the text that you transmit is copied to the reception view (the option is called 'local echo', you will find in in the dialog under the Settings button).
To distinguish the received data from the echoed data, the echoed text is coloured blue, whereas the received data is green. The remaining functionality is straightforward: the Clear button clears the reception view, the About button gives copyright information and the Close button terminates the utility. One 'hidden' feature is the ability to disconnect the RS232 port, without terminating the utility.
You can close an RS232 connection with a click in the status field in the upper left corner of the window (left of the button bar). Another click on that line re-opens the connection with the current settings. You can use this to 'free' the port temporarily for another application. Click here to disconnect, or re-connect Edit history To speed up entering repetitive commands, Termite keeps a history of recently sent commands. This history is in a circular queue with the most recent command at the top. To browse through the history, use the 'arrow up' and 'arrow down' keys.
If you type in a few characters in the 'transmit' edit line, Termite will use the history to auto-complete the entry. Pressing the arrow up and arrow down keys then browse through the entries that match in the first letters. For example, if you have sent the words 'test', 'top', 'view' and 'set' previously, and you type the letter 't' on the edit line, Termite will first auto-complete this to either 'test' or 'top' (depending on which word you sent last) and the arrow keys will toggle between 'test' and 'top'.
If you clear the edit line and then use the arrow keys, Termite will loop through the entire history of 'test', 'top', 'view' and 'set'. Auto-completion and history matching are case sensitive, by the way. Auto-completion is enabled by default, but can be disabled through the.
Scrolling By default, Termite scrolls its reception window so that the most recently received text is displayed. In case you want to look back at text that has scrolled out of the reception view, just scroll the text back into view. Termite will stop to scroll to the end every time it receives new data. To make Termite restart with its automatic scrolling to newly received data, scroll the reception view manually to the end of the data. In other words, Termite only scrolls up text to show newly received data if it is already at the end of the current data. Printing, searching text, clipboard support Some additional functions are available from a pop-up menu that appears when you right-click in the reception view. The 'Copy' command copies only the selected text to the clipboard if a selection exists, and copies all text in absense of a selection.
Likewise, the 'Save' command saves only the selected text to a file if a selection exists (and all text if no selection exists). Configuration Termite stores the configuration in an INI file (see the next section for the location of the INI file).
This way, Termite remembers its settings between sessions. When distributing Termite, you may wish to include an INI file with pre-sets. You can run Termite directly off a CD-ROM, but the utility will not be able to store its configuration in the INI file if the INI file resides on a read-only medium. A typical INI file is below. Port= Device ProlificSerial2 If using the device name of a serial port is not an option, for example, because your hardware has a real serial port instead of a virtual one, you can alternatively use the 'port scanning' protocol. To activate this protocol, set ' Port=0' below the ' Settings' section. Port scanning chooses the first port for which the two following conditions hold:.
the port is not already open (in use);. after setting the DTR line, the remote device pulls DSR up. Port scanning cannot be selected from the Settings dialog, you have to edit the INI file to activate it. The tests for port scanning are primitive. They do not check what device or program is hooked at the other end. The only thing that you know after a port scan is that something is connected to the port and that no other program is currently using that particular port.
In the old days, it had become common practice to connect the DTR and DSR pins in the connectors of the cable (sometimes even at both ends). This is bad practice, because with such cables you cannot even diagnose cable connection problems. Yet, such cables still exist, and the port scan may be fooled by it.
The DRT/DSR handshake usually works with USB-to-RS232 converter cables too. Non-standard Baud rates The MIDI protocol is essentially the RS232 protocol over a current-loop physical layer and with a Baud rate of 31250 bps —for details, see the article '.
Likewise, DMX512 is essentially the RS232 protocol over an RS485 physical layer and with a Baud rate of 250,000 bps. Termite presents you with a list of standard Baud rates, but it allows you to enter different values. The key issue is that the RS232 hardware must support the Baud rate that you select. All RS232 hardware and all USB-to-RS232 converter plugs support the standard Baud rates, but only few support non-standard Baud rates.
We have tested non-standard Baud rates successfully with USB-to-RS232 converters based on the. Forwarding data between two RS232 (virtual) ports You can use Termite to put a PC (or laptop) between two systems and monitor their RS232 communication. The PC or laptop that Termite runs on must have two RS232 ports.
Instead of connecting both systems together, you connect both with the PC that runs Termite. Then, you have to choose one port as the primary port and the other as the 'forward' port, see the dialog of Termite. With forwarding set up, all data received on the primary port is transmitted through the forward port. All data received on the forward port is transmitted through the primary port. The 'sent/received colouring' of Termite is also still in effect: data received on the primary port is in green and data received on the secondary port is in blue. In this configuration, Termite would typically only be used to monitor the communication between two devices. If you type in text on the edit line and transmit it, this text is only sent through the primary port.
In the above diagram, Termite runs on a computer that sits between two other systems/devices. If one of these systems is also a computer (running Microsoft Windows), the set-up may be simplified by running Termite on that system.
The dual RS232 port needed for Termite may be replaced by a virtual COM port pair, such as the. A virtual null-modem creates two ports that exist only in software. Any data presented to one port of this pair is retransmitted at the other port —the same as how port forwarding works in Termite. If you connect an application to one port of the pair and Termite to the other port, the application now talks to Termite. When Termite is then configured to forward transmitted/received data to a physical port (to which the other system is connected), the two systems communicate as before and Termite intercepts all data.
Filters (plug-ins) Plug-in filters allow you to extend Termite in several ways:. Append or insert text or data to what is received (for example, the 'timestamp' sample filter inserts the relative time of reception to every packet of data that Termite receives).
Remove received data from Termite's queue (before Termite processes it), for example to automatically dump it to a file or to process it separately. Create windows with different views of the received data. In combination with the ability to remove data from Termite's queue, this allows you to filter out different kinds of data from a complex stream, and display each kind in its own way. Handle function keys (for short-cuts or user-defined macros). On start-up, Termite collects all plug-in filters that are in the same directory as the Termite application itself.
You can enable and disable a filter in the Settings dialog of Termite (see above). Installing a filter is therefore a mere matter of copying the file to the correct location and enabling it. Optionally, filters may have their own configuration options. Termite launches the filter's configuration dialog when the filter is enabled. To access the configuration dialog of a filter that is already enabled, double-click on the filter name (you must double-click on the name, not on the 'check box'). Typically, a filter stores its configuration in the same INI file as the one Termite uses (Termite passes the path to this INI file to the filter when it loads the filter). Technically, a filter is a DLL with a few special functions (of which only one is mandatory).
The filename extension must be '.flt' instead of '.dll' for a filter. In the Settings dialog, Termite uses the filename minus the '.flt' extension for the filter name. See the short document for details on writing filters.
To get you started, the sample filters 'Timestamp', 'Hexadecimal View' and 'Status LEDs' come with full commented C source code. Translating Termite If you wish to translate Termite (or correct translations), first get the document '.
The process is simple, and requires only a simple text editor. If you wish, you can send the translated files to us (we will gladly accept them).
Note that by sending us your translations, you license us to include them in future versions of Termite. Rationale and alternatives I made Termite because I needed a utility for monitoring RS232 data coming from the hardware devices that we develop. We do that in-house, but devices regularly need to be monitored after installation. At a customers site. By our customers. Therefore, my design requirements were for the utility to be easy to set up, to run 'out of the box' with preconfigured settings, and to run directly from a CD-ROM or USB stick without requiring installation.
Over time, I added features that were needed for specific communication requirements that we stumbled upon, such as non-standard Baud rates, port forwarding, time-stamping received data and sending/receiving hexadecimal values. The last two items were later removed from the utility itself, for the sake of keeping the basic utility simple, and added back as.
In case Termite is not what you are looking for, some alternatives are:. The HyperTerminal applet that comes with Microsoft Windows, or the third-party. provides the free 'simpleterm' utility amongst its downloads. (Choose 'Downloads', then 'BASCOM'.
Then select the 'MCS Simple Terminal' from the list.)., a freeware serial terminal by Dieter Fauth is listed on the site of., which started as an open-source clone of Termite, but now has some features that Termite lacks, while lacking some of Termite's features., a free terminal that supports text and hexadecimal display, macros, scripting, graphic visualization and more. is focused at protocol debugging, especially regarding timing and data-flow handshaking issues.
If you’ve recently upgraded to Windows 7 or Windows 10 and are wondering what happened to HyperTerminal, you’re not alone! HyperTerminal was a sweet little program that let you connect to other computers, Telnet sites, host computers, BBSs, etc. Using your modem or Ethernet connection. In Windows 7, Vista, and 10, you will no longer find the HyperTerminal program. If you need HyperTerminal to control serial devices, there is a way to get it back!
Also, there are several new alternatives to HyperTerminal that are probably better for secure shell access and troubleshooting modems. Windows Remote Shell Firstly, if you only need remote shell access, you can use the new Windows Remote Shell command line option in Windows 7/8/10. To learn more about using WRS, simply open a command prompt and type in winrs /? It’s basically a SSH replacement that allows remote command line access over an encrypted connection. It also uses the SOAP protocol. You can also check out the on winrs that gives you some examples.
Phone and Modem Options If you were using HyperTerminal to troubleshoot modems, you can now use Phone and Modem Options to do this. Go to Control Panel, click on Hardware and Sounds and then click on Phone and Modem Options. If you don’t see it there, click on the drop down by View items and choose Small icons or Large icons. All you have to do is provide information about the Country/Region, Area Code, Carrier Code, and Outside Dial Number to access the dialog box. Once you do that, you can troubleshoot your modem in Windows 7 or Vista. HyperTerminal Alternatives If you don’t want to use all these alternative methods, you can still use alternative programs for HyperTerminal.
Here are some of my favorites. – This is a commercial terminal emulation program that you can use to communicate with serial COM ports, dial-up modems, and TCP/IP networks. If you need a good HyperTerminal program for Windows 10, then this is your best option. – TeraTerm is an open-source terminal emulator and SSH module that supports IPv6, SSH1, SSH2, Telnet, serial ports, and file transfer protocols (XMODEM, Kermit, ZMODEM, B-PLUS, etc).
– Another free Telnet and SSH implementation for Windows. It also is an xterm terminal emulator.
This is probably my favorite alternative to HyperTerminal. Original XP HyperTerminal If you just can’t live without the original HyperTerminal in Windows XP, you can actually extract two files from your XP installation and copy them over to Windows 7/8/10. The two files you will need are hypertrm.dll and hypertrm.exe.
Simply copy those files into any directory on your machine and it will work. You should be able to find hypertrm.exe in C: Program Files Windows NT and hypertrm.dll in C: Windows System32. If you have the Windows XP CD, you should be able to find both of these files in the i386 directory on the CD. So that’s about it!
Enable adobe on safari. Even though HyperTerminal is no longer in Windows 7/8/10, it’s really not needed since you have a lot of great alternatives like Putty, etc. If you want it simply because you’ve been using it for a long time, either download the Private Edition or copy the files from XP.