[i=s]This post was last edited by damiaa on 2016-1-5 09:31[/i] [size=5][color=#008080]2015 has gone quietly, and 2016 has quietly arrived[/color] [/size][size=3][color=#006400]At the end of each year,...
From EEWORLD cooperation group: arm linux fpga embedded 0 (49900581) Group leader: wangkj I have a question: GPBCON = (<<(5*2)); BPB5 is set as output; Is it the same as this sentence BPBCON＝ 0X FFFFE...
It is said that the economy is in recession now, especially in the IT industry. White-collar workers in Beijing and Shanghai are in danger. 178 companies have submitted a list of layoffs. I am in Shen...
[i=s]This post was last edited by qwqwqw2088 on 2019-5-4 19:10[/i] [color=#333333][font=Arial, "][size=5]After buying a new mobile phone, what do you usually do with the old one?[/size][/font][/color]...
clk: system clock; rst: reset signal
clk1us: the clock for sampling AC signals;
pulse: AC signal zero-crossing square wave
data: sine input data
rms_div: The sum of the sampled data in one cycle accor...
In early 2002, I started to write a working program for an IC card prepaid electricity meter. The meter used Philips' 8-bit 51-expanded single-chip microcomputer
87LPC764
, and wa...[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]
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]
Since AC mains power may experience power outages, voltage sags and surges, continuous undervoltage and overvoltage, and frequency fluctuations during supply, these factors will affect the continuous ...[Details]
1 Embedded Systems
Embedded System refers to a collection of computer hardware and software with specific functions or purposes, which is divided into embedded software system and embe...[Details]
Leakage current is generated by parasitic resistance paths between the measurement circuit and a nearby voltage source. This current can significantly reduce the accuracy of low current measurement...[Details]
There are many types and styles of digital voltmeters in design and development. Traditional digital voltmeters have their own characteristics. They are suitable for manual measurement on site. Tra...[Details]
When developing electronic products with processors, how to improve anti-interference ability and electromagnetic compatibility?
1. The following systems should pay special attention to anti-...[Details]
With the development and application of liquid crystal display technology, more and more developers want to use liquid crystal screens to display Chinese characters in the instruments and equipment th...[Details]
1. Sensor
According to the national standard GB7665-87, a sensor is defined as a device that can sense the specified measured quantity and convert it into a usable output signal according to a...[Details]
At present, products in the field of monitoring generally focus on the field level, that is, the client/server (C/S) model is adopted, the purpose of which is to ensure the stability and reliability o...[Details]
3. Driving circuit design
The power driver uses a field effect tube, which is a field-controlled device with a capacitance effect between the gate and source, so it has high requirements for t...[Details]
1. Introduction
According to the definition of the International Electrotechnical Commission (IEC) and the American Instrument Society (ISA), fieldbus is a digital, two-way transmission, multi...[Details]
1. Introduction
PROFIBUS is an international, open asynchronous serial communication standard, which is widely used in manufacturing automation and process automation, buildings, transportatio...[Details]
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