The main advantage of serial communication is, the cost of the entire embedded system becomes cheap and transmits the information over a long distance. Hence, occupying less space and more resistant to cross-talk. so, these require fewer I/O (input-output) lines. Serial communication sends only one bit at a time. RS232 Parallel Communication Difference between Serial and Parallel communication How is this data stored in memory? To have a clear idea, I have explained the difference between Little Endian and Big Endian. Suppose, we have a 32-bit hexadecimal data ABCD87E2. Take this example to understand the concept of endianness. Depending on the data alignment endian is classified as Endianness is the way of storing the data at a particular memory address. An example is your smartphone.īeyond the transmission modes, we have to consider the endianness and protocol design of the host computer (sender or receiver). Here both sender and receiver can transmit and receive at the same time.
Serial communication protocol design full#
The Full Duplex mode is widely used communication in the world. If a client (laptop) sends a request for a web page, the web server processes the application and sends back the information. if a sender transmits, the receiver can accept but cannot send and vice versa. In Half Duplex mode, both sender and receiver are active but not at a time, i.e. Radio and Television transmission are the examples of simplex mode. If a sender transmits, the receiver can only accept. Only one client (either the sender or receiver is active at a time). The Simplex method is a one-way communication technique. Transmission Modes – Serial Communication There will be a source (also known as a sender) and destination (also called a receiver) for each transmission mode. The transmission modes are classified as Simplex, Half Duplex, and Full Duplex. Serial communication can take many forms depending on the type of transmission mode and data transfer. In other words, we can say Binary One represents a logic HIGH or 5 Volts, and zero represents a logic LOW or 0 Volts. In serial communication, data is in the form of binary pulses. Some of the well-known interfaces used for the data exchange are RS-232, RS-485, I2C, SPI etc. In embedded system, Serial communication is the way of exchanging data using different methods in the form of serial digital binary. To have a better insight, I have explained the concept of serial communication.
The protocol is the secure and reliable form of communication having a set of rules addressed by the source host ( sender) and destination host ( receiver). In general, communication means interchange of information between individuals through written documents, verbal words, audio and video lessons.Įvery device might it be your Personal computer or mobile runs on serial protocol. Serial communication is the most widely used approach to transfer information between data processing equipment and peripherals.
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