As the title says, I am working on the emmc driver now. I saw that it is driven by sdio. This driver is very difficult to use. Can I ask for help? Or you can tell me the principle. I looked it up onli...
1. Suppose a computer needs to use 32K*4 dynamic RAM memory chips to expand the memory of 128K*8. Please answer: (1) How many RAM chips are needed to expand the memory system? (2) How many data lines ...
Fancy water light, please try this fancy water light program. It is required to be done in a timer. Use a flag to control the switch. If you are interested, please post the program. Assembly or C is f...
Visible magnetic fields Magnetic fields are usually invisible, but scientists from NASA's Space Science Laboratory have made them visible through voice-controlled computer graphics interfaces and 3D s...
[i=s]This post was last edited by abend on 2014-9-20 19:53[/i] I received the board at noon today, and played with it a little at home in the afternoon. The article is too long, so I will list the mai...
[size=4][color=#000][font=Arial, Verdana, sans-serif] PFC is a circuit that solves the grid pollution problem caused by traditional AC rectifier circuits. The rectifier bridge of the conventional rect...
introduction
With the continuous optimization of surface mount technology (SMT) and the rapid development of chip component manufacturing technology, the application of chip mounters in the el...[Details]
Sailing is gaining more and more attention. How to use modern technology to assist training and improve competition results is particularly important. Considering the real-time data collection in t...[Details]
1. Introduction
Automobile pollution is one of the most important issues that people are most concerned about and need to solve urgently. As an important method for detecting automobile exhau...[Details]
There are three types of mobile TV: one is based on analog TV broadcasting network, another is based on mobile communication network, and the other is based on digital broadcasting network. The f...[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]
Instrument stepper motor
The stepper motor is an open-loop control element that converts electrical pulse signals into angular displacement or linear displacement. In the case of non...[Details]
AD8205 is
a single-supply high-performance differential
amplifier
launched by
Analog
Devices of the United States
. The typical single-supply voltage is 5V, and its common-mode volta...[Details]
LED lamps and bulbs are now rapidly replacing incandescent, halogen and CFL (compact fluorescent lamp) light sources in many general lighting applications. Flyback DC/DC converters are the power su...[Details]
Toyohashi University of Technology demonstrated electric field coupled wireless power supply technology using life-size car tires and roads at the wireless technology exhibition "Wireless Technolog...[Details]
1. When the slip speed regulating motor is undergoing frequency conversion and energy saving transformation, the original excitation box (referred to as the speed regulating box) and the original s...[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]
The TPS92210 is a single-stage LED lighting pulse width modulation (PWM) controller. The TRIAC dimmable solution not only regulates the LED current, but also achieves a power factor close to 1. The...[Details]
At present, how various communication technologies will evolve after 3G is a focus of great concern in the industry. Especially for TD-SCDMA, whether it can achieve smooth evolution to the next gen...[Details]
Analysis of the three core aspects of digital TV transmission standards
According to the differences in regionality, transmission method and modulation method, the transmission method needs to...[Details]
Car lights, whether headlights, fog lights or tail lights, play an important role in driving safety. However, the material of the car lights determines that the probability of damage in a collision...[Details]