I don't quite understand the following sentence: " This port manages the interrupt range of the critical section based on the characteristics of the Cortex-M3 core.The OS_CPU_A.Asm file defines the ma...
[size=5] Currently, the first wireless data transmission module in China that uses SI4432 RF chip has a maximum transmission distance of 1500 meters and technical indicators: [/size] [size=5][/size] [...
[b]When I moved the LCD driver in the bootload of 2440, I set the display mode to 24bpp. Now the content displayed on the screen is that the upper half of the screen shows two identical boot screens i...
The first method is to find the function MAC_CbackEvent in the Zmac_cb.c file. This function is used by the MAC layer to upload messages to the NWK layer and can filter the AssoReq command. This is wh...
I would like to ask you experts, how to communicate with the camera of Aptina device through the IIC port of MCU 18F25K80? Has anyone done such a case? Please help. The memory address to be sent is of...
When laying out the crystal oscillator, it is generally not allowed to be placed at the edge of the PCB. Today we will explain this with a practical example.A dashcam needs to be tested with an extern...
High efficiency and low standby power consumption are two major challenges in today's switching power supply design. Resonant topology or LLC topology is becoming increasingly popular because it ca...[Details]
Assume that data is read from 8-bit AD (if it is a higher-bit AD, the data type can be defined as int), the subroutine is get_ad();
1. Limited secondary filtering
/* A value can be adjust...[Details]
Floating-point digital signal processing has become a constant requirement for precision technology, often in applications requiring high accuracy in areas such as aviation, industrial machinery, a...[Details]
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[Details]
1 Introduction
Solar street lights are mainly composed of four parts: solar photovoltaic cell components, batteries, charge and discharge controllers, and lighting fixtures. The bo...[Details]
With the development and widespread application of computer technology, especially in the field of industrial control, computer communication is particularly important. Although serial communication g...[Details]
1. What is temperature?
Heat is a type of molecular motion. The hotter an object is, the faster its molecules move. Absolute zero is defined as the temperature at which all molecular motion ...[Details]
Smart lighting control systems provide high controllability for various buildings and further enhance the level of green energy. They are the core products of energy conservation and digital techn...[Details]
With the continuous consumption of earth's energy and the scarcity of resources, the harm of greenhouse effect to human beings, and the serious pollution of the atmosphere to the earth, the intern...[Details]
The traditional display screen using 51 single-chip microcomputer to control LED dot matrix has relatively simple functions. If it is to achieve diversified functions, it often takes a lot of time ...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[Details]
1 Introduction
There have been many studies on the detection and protection of power grid short circuit and line fault. The short circuit, overload and overvoltage protectors on the market have ...[Details]
Overview
In spectral measurement, photomultiplier tubes (PMT) and charge-coupled devices (CCD) are often used as photoelectric converters. PMT is used in slow-changing, high-precision spectral...[Details]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[Details]
Single-chip microcomputers are widely used because of their small size, powerful functions and low price. This article introduces the method of designing a micro electronic piano using the AT89C51 sin...[Details]