Frequency band usage and characteristics of mobile communication: The reasons why early mobile communications mainly used VHF/UHF: 1) VHF/UHF frequency bands are more suitable for mobile communication...
I want to use timerB to output pwm signal. I connected 8M crystal between xin and xout on p4.0 and p4.1. But when I use ACLK, TBR does not count. But when I change to SMCLK, TBR changes and counts. Bu...
I am using STM32F407 and working on the CAN port. The current situation is that in loopback mode, there is no problem with sending data and receiving interrupts, and the signal can be measured on the ...
Recently I started to use TMS320F2812 to debug AT45DB161D, a serial Flash chip. I haven't read all the English materials, but there are some Chinese ones on the Internet. I read two of them and referr...
xajhuang, I read your post about 2440 sleep wakeup last year. Now I am confused about 2440 sleep wakeup. According to the data, the OEMPowerOff function will be executed during sleep. There is an OALC...
Our basic idea is to minimize the interference of high-frequency signal electromagnetic fields, also known as crosstalk. Increase the distance between high-speed signals and analog signals, or add gro...
1 Introduction
The high temperature tester is mainly used for temperature tracking measurement and data acquisition during the heating process. By systematically analyzing the test data, the...[Details]
Due to the significant increase in electronic devices in automotive and industrial applications, the automotive and industrial markets continue to play an important role in China's electronics in...[Details]
As LEDs continue to improve in almost every aspect of performance and cost, LED lighting is being used in an increasingly wide range of applications, among which LED street lights are a focus of in...[Details]
In public places such as schools, government agencies, factories and mines, as well as public corridors in residential areas, the phenomenon of long-burning lights is very common, which causes a h...[Details]
Today, with energy becoming increasingly scarce, the utilization of natural energy has become the focus of people's attention. Among various natural energies, the endless solar energy is highly fav...[Details]
D5026A is a driver IC designed by Shanghai Debei Electronics for energy-saving LED display screens. Its design concept is energy-saving and compatible with existing solutions, that is, it can be ...[Details]
Since the late 1990s, with the demand for higher system efficiency and lower power consumption, the technological update of telecommunications and data communication equipment has promoted the deve...[Details]
Rated capacity refers to the maximum output power of the UPS (the product of voltage V and current A).
Usually, the UPS power supplies sold on the market are marked with "W" (watt) for smaller...[Details]
1 Introduction
Automatic Test
System The ATS (Automatic Test System) integrates all the stimulus and measurement equipment required for testing.
The computer
efficiently comp...[Details]
TPMS is the abbreviation of "Tire Pressure Monitoring System". It is mainly used to automatically monitor the tire pressure in real time when the car is driving, and to alarm for tire leakage and l...[Details]
O Introduction
For people who are in the wild, a question that they are more concerned about is the altitude of the place where they are. However, there are very few such products on the mar...[Details]
When selecting EMC test equipment, we often encounter the following questions: What is the difference between an EMI receiver and a spectrum analyzer? Why should a receiver be used for EMI testing?...[Details]
1. Overview
Infrared temperature measurement technology plays an important role in product quality control and monitoring, online equipment fault diagnosis and safety protection, and energy co...[Details]
We software engineers love to find the perfect solution to any problem we encounter. But oddly enough, we find that in this particular area, there is no perfect solution. Clever tricks may save som...[Details]
The automotive environment is very demanding for electronics: any circuit connected to the 12V power supply must operate within the nominal voltage range of 9V to 16V. Other pressing issues include...[Details]
RF/Wirelessly
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