[color=#000][font=Arial, Helvetica, sans-serif, 宋体][size=12px]RS232 and RS485 are two difficult things to understand, although they are very different. [/size][/font][/color] [b]1. What is the RS-232-...
There is a binary stationary Markov chain. Given P(0/0)=0.8, P(1/1)=0.7, find its symbol entropy. Perform run-length coding. If the cutoff value of the "0" run length is 16 and the cutoff value of the...
Abstract: Digital temperature sensors can directly output temperature in the form of digital pulse signals, and have many advantages such as high measurement accuracy, strong anti-interference ability...
I was recently debugging a 2440 board that I made. The JTAG connection was established and the core was identified as ARM920T. However, the instructions were not executed. Since it was hardware debugg...
PC-type hard disk video recorder crashes in full contact 9. Improper selection of parts causes crashes. A few people use low-quality motherboards and memory when assembling hard disk video recorders f...
China Energy Storage Network News:
On April 24, State Grid Corporation of China (hereinafter referred to as "SGCC") and China Southern Power Grid Co., Ltd. (hereinafter referred to as "CSGC")...[Details]
In the past few days, the Chinese display panel giant
BOE
has been flooded with articles supported by Liu Shuwei. Let's follow the embedded editor to learn about the relevant content.
...[Details]
When
artificial intelligence
can help humans take on some work, we always divide the responsibilities of both parties very clearly. When humans work, we rarely see
artificial intelligen...[Details]
Unique device identifiers are suitable for: ● Used as a serial number (e.g. USB string serial number or other terminal applications) ● Use the unique ID as a security key when used in conjunction wit...[Details]
CMSIS Driver has similar API functions and similar calling methods. It is a further encapsulation based on the ST HAL library. It is much more convenient and simpler to use and configure than the ST ...[Details]
We have come a long way from the 2G era, and now 5G is about to be commercialized. Suddenly, we realize that time has passed quickly, but technology has never stopped. The activation of 5G heralds ...[Details]
Recently, there was news that the US government asked Google to shut down the Android operating system for ZTE phones. After that, some people even imagined what the consequences would be if Intern...[Details]
1. Basic Concepts of LCD/LCM The structure of Liquid Crystal Display (LCD) is to place liquid crystals between two parallel pieces of glass. There are many vertical and horizontal fine wires between...[Details]
Overview
Lightning is a strong discharge phenomenon that occurs between thunderstorm clouds and between thunderstorm clouds and the earth due to severe convective weather. Lightning is gen...[Details]
The photovoltaic inverter is the core equipment of the photovoltaic system. Its main function is to convert the direct current generated by the photovoltaic modules into alternating current that meets...[Details]
This is also a routine in the development board, with explanations of the key points. The program is as follows: /********************************************************* Program notes: First...[Details]
1. Introduction to MC68K CPU The MC683xx series of microcontrollers are composed of the famous MOTOROLA 32-bit microprocessors such as MC68K, 68020, 68040, and the compatible 68K, CPU32, CPU3...[Details]
In recent years, the application of high-brightness LED has developed rapidly, especially in signboards and traffic lights. For automotive applications, LED is also very attractive. Long life, shock ...[Details]
Notes on inverter installation and maintenance:
1. Before installation, you should first check whether the inverter is damaged during transportation.
2. When selecting an installa...[Details]
Mobile and portable
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