PRETEL99SE Chinese version, there is a problem with laying the ground, please tell me why I can't connect to the network after laying the ground, this problem is killing me,...
When the vxworks (disable MMU) program runs to malloc(1024*1024*5), an error occurs: machine check program counter: 0x793360 machine status: 0x4b000 8286f4 vxTaskEntry +60 : 324ec ([]) 722f88 wBufferM...
There are many available peripherals on the car, such as RGB lights, LED dot matrix, ultrasonic module, tracking module, etc. To play with the car, you need to adjust the peripherals on the board.The ...
I wrote a program, which mainly monitors the IO status of the external port every 20ms in timer 1. When the IO port status changes, the data is stored in the array in the timer, and then the flag is s...
Question: How is the reference voltage of the chip determined? For example, if a DAC108S085 is selected, Vdd = 5v; reference voltage Vref = 4.096V;
(Some chips are powered by 3V, so the reference volt...
With the continuous improvement of living standards and the increase in the proportion of urban aging, the household use of medical electronic equipment has gradually become a trend. Among them, the...[Details]
At present, a hot spot for the research and development of hearing aids abroad is concentrated in China. To be more precise, it is based on the research of Chinese language and speech, and the deve...[Details]
Signal sources have developed to a very wide range today. We can classify them according to the frequency range: ultra-low frequency (0.1m～1kHz), audio (20Hz～20kHz), video (20kHz～10MHz), radio fre...[Details]
Among the many candidate standards for China's mobile TV, the CMMB standard proposed by the Broadcasting Science Research Institute of the State Administration of Radio, Film and Television is aime...[Details]
In a Class D audio power amplifier, the preamplifier is a relatively important module. It is located at the front of the entire topology and completes the processing of the input signal source,...[Details]
Preface
In recent years, many compact portable electronic products have been developed, such as mobile phones, digital cameras, MP3, MP4, PDA, GPS and DVD, etc. They are not only small in size...[Details]
introduction
Image compression technology is becoming more and more important in modern life. With the improvement of data processing speed of DSP, a single-chip DSP can achieve good results...[Details]
Abstract: This paper uses the S3C2410 chip GX development board with ARM920T core as the hardware platform and Windows CE operating system to design an embedded system touch screen interactive func...[Details]
Nowadays, the phenomenon of using cloned taxis and trucks for operation is becoming more and more serious. The so-called cloned car is one or several unlicensed vehicles that are used to copy anoth...[Details]
Mesh network architecture and advantages
The Internet is a flat network. The routers that make up the Internet are on the same plane. The mesh network formed by multiple paths between ...[Details]
0 Introduction
Electric vehicles are high-tech products that integrate computer technology, communication technology, electronic technology, and new material technology. They have a complex ...[Details]
In today’s body control module (BCM) designs, knowledgeable engineers are moving away from electromechanical relays wherever possible. Their next step is to eliminate fuses. But is eliminating ...[Details]
The dual-field-of-view infrared optical system can simultaneously provide two images with different magnifications and fields of view. The large field of view in the system has a lower resolution a...[Details]
1 Introduction
Under the current situation of power shortage in my country, it is very important to monitor power to ensure safe use of power. The research and transformation of power grid...[Details]
In the new generation of automotive exterior mirrors, the number of built-in functions has increased significantly: side retro-reflectors or turn signals/flashlights, door exterior lights, defroste...[Details]
PCB Design
京公网安备 11010802033920号
EEWORLD
