I reposted this, but I think it's well written. I suggest you read it. Do you know why the unreasonable mobile phone roaming charges are always delayed in being cancelled? Do you know why the one-way ...
In S3c2440_intr.h, the IRQ value of spi0 is 22. I use KernelIoControl to convert the IRQ of spi0 into a logical interrupt value. And associate it with an event, so that as soon as an interrupt occurs,...
Use MFC to generate a single document program. Click an item on the menu to switch between different VIEW class client areas without changing the main frame....
Does anyone know this problem: I use IAR to develop ARM programs. I already have a development board, but I can't debug online. I don't have a J-link, but only a similar thing. The difference between ...
Abstract: A method for implementing soft switching in a boost circuit is proposed, which is synchronous rectification plus inductor current reversal. According to the different conditions for realizin...
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 recent years, lighting has become an important area that countries around the world are targeting to promote energy conservation and environmental protection. According to statistics, about 20% ...[Details]
As a simple and practical input device, buttons have been used in various microcontroller application systems and are ubiquitous. However, the buttons used in different practical occasions are also...[Details]
Abstract: The output of high-range acceleration sensor is less than 10 mV under the excitation of small signal. The noise of traditional test system may cover such small voltage signal, so that hig...[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 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]
introduction
The core features of mobile value-added service products are mobility, immediacy and personalization. Mobile value-added services are a new service mode that is rapidly developing...[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]
0 Introduction
In the design and construction of communication systems,
communication power supply
is called the heart of the communication system. The power supply system will dire...[Details]
1 Introduction
Intelligent cars are the embodiment of the cross-integration of multiple disciplines such as automotive electronics, artificial intelligence, pattern recognition, automatic con...[Details]
AD7708 is a multi-channel 16-bit Σ-Δ analog-to-digital converter ADC. It supports 4 or 5 channels of true differential input and 8 or 10 channels of pseudo differential input. This chip allows two ...[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]
0 Introduction
Gyroscope
is a sensitive measuring element of the platform stabilization system. It senses the angular motion signal of the platform and establishes the stability bench...[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]
1. Introduction
Due to the good programmability and superior performance of FPGA, the number of embedded systems using FPGA chips in LCD splicing screens is increasing rapidly, especially in t...[Details]