In embedded systems, EEPROM (Electrically Erasable Programmable Read-Only Memory) is often used to store data that needs to be changed frequently and should not be lost due to power interruptions. However, since STM32 does not have built-in EEPROM, how can we solve this problem and meet storage requirements? 1. Use External EEPROM Chips When STM32 … Read more
Click the above“Mechanical and Electronic Engineering Technology” to follow us System Configuration: Raspberry Pi 3B+, Operating System Raspbian-stretch, Python version is python3.5.3 Functional Requirements: Design a QT interface to collect data, with a start collection button that begins data collection when clicked, and a stop button that stops data collection when clicked. The data should … Read more
The LCDs we purchase generally consist of two parts: The LCD panel and the LCD driver chip Our processor does not directly drive the LCD panel, but rather drives the LCD driver chip, which in turn drives each pixel on the LCD panel. Therefore, to make the LCD display certain content, we need to consider … Read more
In embedded systems, on-board communication interfaces refer to the communication paths or buses used to connect various integrated circuits with other peripheral devices. The following content summarizes commonly used on-board communication interfaces: including I2C, SPI, UART, and 1-Wire: I2C Bus The I2C bus is a <span> synchronous, bidirectional, half-duplex two-wire serial interface bus</span>. Here, half-duplex … Read more
MSB: Most Significant Bit; LSB: Least Significant Bit; AHB: Advanced High-performance Bus; VPB: VLSI Peripheral Bus connecting on-chip peripherals; EMC: External Memory Controller; MAM: Memory Accelerator Module; VIC: Vector Interrupt Controller; SPI: Full-Duplex Serial Interface; CAN: Controller Area Network, a serial communication protocol; PWM: Pulse Width Modulator; ETM: Embedded Trace Macrocell; CPSR: Current Program Status … Read more
First, it should be understood what a bus is. According to Baidu’s complete definition: a bus is a common communication line for transmitting information between various functional components of a computer, composed of wire transmission lines, classified according to the types of information transmitted by the computer. In fact, a bus is an internal structure … Read more
Source: Automotive ECU Design When you connect a microcontroller to sensors, displays, or other modules, have you considered how these two devices communicate with each other? What exactly are they saying? In fact, communication between electronic devices is like communication between humans; both parties need to speak the same language. In electronic products, these languages … Read more
UART, I2C, SPI are the most commonly used serial communication protocols. Today, I will share some insights into the underlying communication protocols. (Source: 8号线攻城狮)
How to Understand Clock Phase (CPHA) and Clock Polarity (CPOL) in SPI Programming? I2C Operation Notes – Taking AT24C04 as an Example Still Don’t Understand Serial Communication? This Article Will Help You Understand
