Hyper Terminal Setup

Hyper Terminal is a communication program that come free with Windows, it is also available from http://www.hilgraeve.com.  We will use Hyper Terminal to send and receive characters over the serial port.  The following sets show how to create a connection.

Hyper Terminal is usually found in 'start | All Programs | Accessories | Communications' 
Click on HyperTerminal.  If you have never run HyperTerminal before it will ask for your location and area code - this will not be needed for our application but enter this information anyway to get the software to start.

Hyper Terminal will begin by asking for the Connection Description.  Enter a Name in the Name file such as 'USBTTL' and if you wish pick an Icon from the list and click OK.

The Connect To screen now appears, select the COM port that the USB to TTL cable has been assigned from the 'Connect using:' drop down list and click OK.  If you do not know which port it is, then click here to see how to find out.

Next the Port Properties dialog box appears.  The example uses a baudrate of 9600 so select '9600' in the 'Bits per second:' drop down box, and selct 'None' in the 'Flow control:' drop down box.  The other settings should be the defaults.

The main HyperTerminal window will now appear and the connection will be open.  The default settings require both a 'new line' and a 'line feed' special character to be sent in order to start a new line.  The settings allow the 'line feed' to automatically be done when receiving a 'new line'.  To turn this setting on, first disconnect by either selecting 'disconnect' from the Call Menu or by clicking on the Icon.  The select 'Properties' from the 'File' Menu, the Properties dialog box appears, Select the 'Settings' Tab.  Click on 'ASCII Setup...'

In the ASCII Setup Dialog box, tick the 'Append line feeds to incoming line ends' check box in the ASCII Receiving section and click OK.

Select 'Call' from the 'Call' Menu to open the serial port.  HyperTerminal is now ready to send and receive characters.  Note that with our settings any key pressed will just be sent down the USB to TTL cable (it will not be displayed on the screen).  Only characters being sent to the PC will be displayed on the screen.

 

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