union mm { uchar bbb; struct { uchar BIT0 :1; /* Port A Bit 0 */ uchar BIT1 :1; /* Port A Bit 1 */ uchar PORTE_BIT6 :1; /* Port A Bit 2 */ uchar BIT3 :1; /* Port A Bit 3 */ uchar BIT4 :1; /* Port A Bi...
Facing the company that truly belongs to me (I was a shareholder before), I am filled with emotion. . . . Now I can easily decide anything, I don’t need to discuss with anyone if I want; I can arrange...
You really have to read the datasheet, for example, DS18B20, otherwise it will be difficult to write the program. The digital temperature sensor DS18B20 launched by DALLAS Semiconductor of the United ...
First impression of ez430-rf2500Fortunately, I applied for ez430 — rf2500 from the forum . At first, I just wanted to learn it out of curiosity. At that time, I had no idea about wireless transmission...
Whether you use the ping command or the tftp command, it always displays CS8900 Ethernet chip not found?!
I looked at uboot1.1.6/include/configs/smdk6410.h, and it is indeed configured to use CS8900 f...
1 Introduction
A wide variety of communication cables and control cables are widely used in various instruments and control equipment. Whether the cable is well-conducted and
whether
th...[Details]
Abstract: In order to generate a stable excitation signal, the design of a digital frequency synthesizer is implemented on FPGA using Verilog hardware language. The design includes accumulator, wav...[Details]
MediaTek (2454) announced the acquisition of F-MStar (3697) and attracted the attention of IC design industry. This morning, Gartner Semiconductor Industry Research Director Hong Cenwei analyzed ...[Details]
With the rapid development of intelligent control technology, computers and information technology, the trend of information appliances IA (Information Application), computers and communications integ...[Details]
This controller uses PIC16C54 single-chip microcomputer as the controller, and it is very easy to use: just connect a telephone line to the loudspeaker through the controller, and you can rem...[Details]
According to the Industrial Technology Research Institute of Taiwan, due to factors such as the oil crisis and global warming, the issues of energy conservation and environmental protection have at...[Details]
Introduction
X1226 has the functions of clock and calendar. The clock relies on hour, minute and second registers to track, and the calendar relies on date, week, month and year registers to tr...[Details]
A few days ago, I bought an 8LED flashlight in the market (the flashlight uses No. 5 batteries). Because I had other things to do, I didn't pay attention when purchasing it. When I got home and use...[Details]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
Every time I go home and walk up the stairs, I am always scared. The corridor lights are often broken, and no one changes the bulbs, or they are not smart enough and need to be operated manually. E...[Details]
In order to develop lighting LED technology, developed countries attach great importance to the research of LED testing methods and standards. For example, the National Institute of Standards and T...[Details]
The capacity of a battery depends on the amount of charge and discharge, in addition to some factors of the battery itself. Obviously, if the charge and discharge of the battery can be recorded all...[Details]
Applying fieldbus technology on new beer production lines is the first choice for large beer companies with strong management level and technical strength. Guangzhou Zhujiang Beer Group Co., Ltd. i...[Details]
As a new type of centralized and decentralized elevator control system, serial communication has been widely used in China. Compared with the previous centralized and unified control system, each s...[Details]
0 Introduction
This paper designs a dot matrix LED text display screen that is easy to update, expandable, and low-cost. The ways to reduce costs are: ① Use the Bluetooth data transmission...[Details]