National Telecom DNS addresses to be used for GPRS/CDMA dynamic domain name resolution Hong Kong ns1.netvigator.com 205.252.144.228 Macau vassun2.macau.ctm.net 202.175.3.8 Shenzhen ns.shenzhen.gd....
The attachment is a project created with KEIL. A running light is run at the P3 port. The effect can be observed under pure software simulation. System resources: Program Size: data=84.0 xdata=423 cod...
The computer's network card light is not on, and sometimes it flashes on and off, showing that the local connection is crossed out, and I cannot access the Internet. However, I can move the computer t...
Recently, our company took on a project from a water company, which required us to develop a product that can detect whether the pipe is leaking (underground pipes: the pressure should be quite high)....
[font=微软雅黑][color=#000000][b][size=5]Event Date: [/size][/b][size=4]From now until April 20th [/size][/color][/font][font=微软雅黑][size=4][color=#000000] [/color][/size][/font] [font=微软雅黑][size=5][color=...
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]
This program is written to simulate the serial port hardware mechanism. When used, a timed interrupt can be set with a time interval of 1/4 baud rate. The receiving function is called once for ea...[Details]
With the rapid development of science and technology, especially the widespread application of digital technology and various ultra-large-scale integrated circuits, electronic equipment, especially...[Details]
Remote keyless entry (RKE) systems have become popular with users, with more than 80% of new cars in North America and more than 70% in Europe equipped with RKE systems. In addition to the obvious ...[Details]
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
As cellular phones become more advanced, the power consumption of the system during operation and the power consumption during standby are also increasing. Therefore, the power management design of...[Details]
DSP (digital signal processor) is used more and more frequently in today's engineering applications. There are three main reasons for this: first, it has powerful computing power and is capable of ...[Details]
We know that microcontroller development tools generally include real-time online emulators and programmers. Among them, online emulators are very good tools, but they are also more expensive...[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]
A multi-point temperature control heating control system was designed using the SST89E564RC single-chip microcomputer and a new temperature measuring device. The heating system can be controlled in...[Details]
my country is a big country in agriculture, grain production and consumption. Grains are a necessary condition for our nation to survive and develop. The flour processing industry will exist forever w...[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]
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]
This paper designs a 16x16LED Chinese character display bar based on single-chip dynamic scanning control, briefly analyzes the principle of Chinese character display, and studies how the LED displ...[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]