Simulating Standard UART Serial Port Using General I/O Ports

Simulating Standard UART Serial Port Using General I/O Ports

Frame The UART communication standard uses an 8-bit binary number as a frame, with the least significant bit first, transmitted bit by bit. To distinguish each frame, a 0 is used as a start marker before each frame, followed by a 1 as a stop marker. Before the stop marker, an optional “parity bit” can … Read more

Introduction to 80C51 Microcontroller Pins and Functions

Introduction to 80C51 Microcontroller Pins and Functions

The 80C51 microcontroller is a classic 8-bit microcontroller released by Intel many years ago. It is widely used in various embedded systems and integrates multiple functions such as CPU, memory, and I/O interfaces. It can connect and communicate with external devices through specific pins. This article will introduce the pins and functions of the 80C51 … Read more

C++ Device Drivers: How to Communicate with Hardware

C++ Device Drivers: How to Communicate with Hardware

Device Driver – The “Translator” Between Hardware and Software In the world of computers, hardware is like human limbs, responsible for executing various specific tasks; software acts like the human brain, issuing commands and processing data. The device driver is the crucial bridge connecting hardware and the operating system, playing an essential “translating” role. Whenever … Read more