Detailed Differences Between Serial Ports, COM Ports, UART, TTL, RS-232, and RS-485

Detailed Differences Between Serial Ports, COM Ports, UART, TTL, RS-232, and RS-485

Welcome FPGA engineers to join the official WeChat technical group. Clickthe blue textto follow us at FPGA Home – the best and largest pure FPGA engineering community in China During debugging, you will always encounter various interfaces and conversion boards, and the feeling of not fully understanding can be very frustrating! First, serial ports, UART … Read more

Understanding UART, RS-232, RS-422, and RS-485 Standards

Understanding UART, RS-232, RS-422, and RS-485 Standards

▲Click the card above to follow and learn more▲ Communication issues, like traffic problems, can vary in speed, congestion, and interruptions. If we compare serial communication to traffic, UART can be likened to a station, and a frame of data is akin to a car. Cars on the road must obey traffic rules. In the … Read more

Understanding UART: History, Principles, and Standards

Understanding UART: History, Principles, and Standards

1. History of Serial Ports First of all, the serial port is an essential tool for anyone working with hardware and embedded software, especially when debugging a system with an MCU or CPU. Generally, the first thing we do during debugging is to light up the GPIO, and the second is to establish a communication … Read more

In-Depth Observation: Why RS-232 Competes with USB?

In-Depth Observation: Why RS-232 Competes with USB?

Author Jeff Dorsch RS-232-C is a serial physical interface standard established by the Electronic Industry Association (EIA) in the United States in the 1960s. RS stands for “Recommended Standard,” 232 is the identifier number, and C indicates the number of revisions. Why is RS-232 so widely used? Why not the Universal Serial Bus (USB) or … Read more

Exploring the Longevity of the MAX232 Chip in Semiconductor History

Exploring the Longevity of the MAX232 Chip in Semiconductor History

Every semiconductor company has one or two star products during its development. These products help the company gain fame and establish a solid position in the semiconductor market. In the history of Maxim Integrated, there is such a star product that helped the company achieve profitability in its first year and successfully IPO in 1988! … Read more