It formally defines signals connecting between a DTE (data terminal equipment) such as a computer terminal or PC, and a DCE (data circuit-terminating equipment or data communication equipment), such as a modem.

Serial communication using RS232 protocol is the most common and widely used protocol in embedded systems. In this section, we will explain basics of serial communication and how to communicate with PC using RS232 protocol. LPC2148 controller from Philips of ARM7 family is used in this section.

While interfaces such as Ethernet, FireWire, and USB also send data as a serial stream, the term serial port usually denotes hardware compliant with RS-232 or a related standard, such as RS-485 or RS-422.

Mar 29, 2001 · This application note provides a detailed overview of the RS-232 specification. Find the full information and App Notes from Maxim Integrated.

Aug 18, 2020 · For PC, the most common configuration is asynchronous link sending 7-bit or 8-bit packets. However, this standard supports synchronous transmission too. With all its merits, RS-232 has some serious limitations in range and data throughput performance, so its main scope of application is industrial gear, networking, and lab equipment.

Jun 6, 2022 · This RS232C DE-9 (usually miscalled DB-9) port is available in some PCs and many other devices. An RS-232 serial port was once a standard feature of a personal computer, used for connections to modems, printers, mice, data storage, uninterruptible power supplies, and other peripheral devices.

Dec 18, 2024 · Universal Asynchronous Data Receiver & Transmitter (UART), attached in a motherboard, used in connection with RS232 for transmitting data to any serial device like modem or printer from its DTE interface.

Identify your serial port. Remember, a PC's RS-232 port can be 9-pin or 25-pin, but will always be a male connector (containing pins, not sockets). If you have 2 serial ports, identify if it is COM1 or COM2. If necessary, consult your computer's manual, or contact their technical support department. Locate pins 2 and 3

In this section, we will explain basics of serial communication and how to communicate with PC using RS232 protocol. LPC2148 controller from Philips of ARM7 family is used in this section. There are two types of communication possible between two devices depending upon the number of wires required.

Mar 21, 2024 · RS232 is a standard for serial data communications between computers and other devices. The protocol uses a simple three-wire interface consisting of a transmit (TX) line, a receive (RX) line, and a ground (GND) line. Data is transmitted serially, meaning that each bit is sent one after the other on the TX line.