Such a data table material diameter number length Q235 10 1 15 Q235 10 2 21 . . . #45 5 1 15 #45 5 2 30 . . . I mainly read the length value in the database according to the material and diameter valu...
[i=s]This post was last edited by Tianming on 2014-7-22 10:24[/i] Field Programmable Gate Array (FPGA) is a programmable logic device that was originally used almost exclusively for prototyping of hig...
[i=s]This post was last edited by wgsxsm on 2015-5-24 22:51[/i] As usual, continue from the previous post: [url=https://bbs.eeworld.com.cn/thread-459940-1-1.html]https://bbs.eeworld.com.cn/thread-4599...
I am using CROSS-2.95.3. I can compile 1.1.2 without any problems, but 1.1.4 always fails with the error cc1: invalid option 'abi=apcs-gnu'. I changed the compiler system to CROSS-3.2, but the same pr...
[url=https://www.zhihu.com/question/21729463]Original address[/url] [color=#222222][font="][size=13px]The process of logic chips is still around 20nm, such as Intel's CPU, while memory chips are appro...
Time: 1935Place: On the grassland during the Long March Characters: The young soldier and the old squad leader
(The curtain opens) The young soldier (ran over in panic) shouted, "Old squad leader, som...
In
circuit design,
current
measurement
is widely used, and the main fields are divided into three categories: in measurement,
the electric meter
is used to measure the curre...[Details]
In recent years, the market for mobile/portable devices such as smartphones and laptops has continued to grow rapidly. While these products continue to integrate more new features to enhance the ...[Details]
1. Introduction
Light control circuit plays a vital role in urban street lamps or corridor lighting. With light control circuit, the lights can be automatically turned on and off according to ...[Details]
From the PIC16F946 datasheet, we know that there are two ways to write values to the LCD for display:
1. Directly write the value to LCDDATA1~LCDDATA23
2. Use disconnect t...[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]
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]
In today's body control module (BCM) designs, savvy engineers are moving away from electromechanical relays whenever possible. Their next step is to eliminate fuses. But is eliminating fuses a nece...[Details]
This article will introduce a design method for a distributed control system used in a tracking car, which can perform distributed control of motor modules, sensor modules, and lighting control mod...[Details]
The serial interface real-time clock chip DS1302 launched by Dallas Company in the United States can trickle charge the backup battery of the clock chip. Due to the main features of the chip such a...[Details]
With the rapid development of wireless
digital communication
, more challenges have been raised for integrated circuit design and testing. In the product design stage, in order to ensure
t...[Details]
The launch of Shenzhou IX is imminent, and Tiangong is welcoming visitors again. Yesterday, Professor Fu Qiang, Vice President of the Institute of Science and Industrial Technology of Harbin Instit...[Details]
introduction
At present, the research on micron and nanotechnology is very active, which has led to the rapid development of microtechnology and micro-mechanical electronic system (MEMS) t...[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]
Among the uses of electrical energy, lighting accounts for a considerable proportion. Compared with the earlier ordinary incandescent lamps, the fluorescent lamps and energy-saving lamps we commonl...[Details]