Xon/Xoff (X-on/X-off or XON/XOFF)

Xon/Xoff is a method of flow control used in computer networks. When data is being sent from one computer to another, Xon/Xoff signals are used to ensure that the data is received properly. If the receiving computer is not able to keep up with the data being sent, it will send an Xoff signal to the sender, telling it to stop sending data. Once the receiving computer is able to catch up, it will send an Xon signal, telling the sender to resume sending data.

What is XON XOFF handshaking?

XON/XOFF is a type of handshaking protocol used to control data flow in serial communications. It is typically used in conjunction with hardware flow control, which is a separate handshaking protocol that uses special control signals to regulate data flow.

XON/XOFF handshaking works by sending special control characters to the receiving device to signal when it is okay to send data, and when it should stop sending data. The most common control characters used for this are XON (transmit on) and XOFF (transmit off).

When the receiving device receives an XON character, it knows that it is okay to start sending data. When it receives an XOFF character, it knows to stop sending data. This allows the two devices to regulate the flow of data between them, and prevents data from being lost or corrupted.

XON/XOFF handshaking is not a very reliable form of handshaking, and can be susceptible to data loss if the control characters are not received correctly. It is also not a very efficient form of handshaking, as it requires the sending device to stop and start sending data frequently.

Hardware flow control is a more reliable and efficient form of handshaking, and is typically used in preference to XON/XOFF handshaking. What is flow control on serial port? Flow control on serial port is a mechanism to control the amount of data that can be sent or received at one time. This is usually accomplished by hardware (flow control lines) or software (XON/XOFF).

What is software flow control in UART?

In UART, software flow control is a method of controlling the flow of data between two devices using special control characters. When one device wants to send data to another, it first sends a "request to send" (RTS) character. The receiving device can then either allow the data to be sent by sending a "clear to send" (CTS) character, or it can block the data by sending a "not clear to send" (NCTS) character. How do I use XON XOFF? In order to use XON/XOFF flow control, you need to configure your software to use it. In most cases, this will involve setting a flag in your software's settings. Once you have done this, your software will handle the flow control automatically.

What does xoff mean?

XOFF is a control character used in data communications to indicate that transmission should be paused. When a receiving device receives an XOFF character, it will stop sending data to the sending device. The sending device can then resume transmission by sending an XOFF character.