Understanding TeraTerm and its Console Interface for Windows: A Simple I/O Implementation

Introduction

TeraTerm is a popular terminal emulator application for various platforms, including Windows. One of its primary uses is to provide a console interface for simple Input/Output (I/O) implementations, especially for embedded systems using Universal Asynchronous Receiver/Transmitter (UART) consoles. In this article, we will explore the basics of using TeraTerm on a Windows PC for such implementations, focusing on its simple I/O functionality without the command-line interface.

Setting Up TeraTerm

Before diving into the I/O implementation, let's first set up TeraTerm on your Windows PC:

1. Download and install TeraTerm from its official website: https://sourceforge.net/projects/ttssh2/files/
2. Launch TeraTerm and connect to the console using the appropriate settings, such as the UART port, baud rate, data bits, stop bits, and parity.

Simple I/O Implementation

Now that TeraTerm is set up, let's explore how to implement simple I/O operations using it:

Sending Data

To send data to the console using TeraTerm:

1. Type the data in the terminal window.
2. Press the Enter key to send the data.

For example:

 TeraTerm> Hello, World!
 

Receiving Data

To receive data from the console using TeraTerm:

1. Set the console to send the data.
2. Type Ctrl+O in TeraTerm to open the local echo setting window.
3. Uncheck the "Local Echo" option and click "OK" to disable local echo.
4. Set the console to send the data by sending a character, such as "?".
5. Type Ctrl+J in TeraTerm to open the screen output setting window.
6. Check the "Raw" option under the "Local Echo" tab and click "OK" to enable raw output.
7. Type Ctrl+Q in TeraTerm to send a break signal to the console to start sending data.
8. Receive the data in TeraTerm by reading the console input.

   For example:

   
    #include <stdio.h>
    #include <conio.h>
    int main()
    {
    int data;
    while ((data = _kbhit()) != EOF)
    {
    printf("%c", _getch());
    }
    return 0;
    }
   

In this article, we explored the basics of using TeraTerm on a Windows PC for simple I/O implementations using its console interface. We covered setting up TeraTerm, sending and receiving data, and some basic considerations for using raw output. For more advanced I/O implementations, you may want to explore other libraries and tools, such as the Windows API or third-party libraries like libserialport.

References

• TeraTerm
• Windows Console
• libserialport