Today I overclocked the DM642 board I made. I used SDRAM (143M) with a -7 suffix and adjusted the frequency multiplier setting of the PLL chip. I adjusted the original 133M frequency to 150M, and remo...
According to its instructions, it also comes with an adapter cable. But I don’t know if it can be used. [url=http://item.taobao.com/item.htm?spm=a230r.1.14.1.gGoi41&id=27020124516&_u=r13n6hr00a8]http:...
As graduates step out of their ivory towers, whose advice should they listen to? What lessons should they learn on their great journey to independence and autonomy? It might be helpful to listen to th...
I would like to ask a question about career planning: "There is a sequence in learning, and there is a specialization in skills." I am also a bookworm who comes here because of my reputation. I have o...
1. What are the functions of the two MOS tubes M1 and M2 in the circuit diagram?2. What is the feedback loop in the circuit diagram? What function does it play?3. Can this switching power supply be us...
Use of shortcuts: If you want to display a program shortcut on the desktop of the CE platform, the implementation steps are as follows: 1. Create a shortcut. Use a text editing software such as Notepa...
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
1. Introduction
RFID (radio frequency identification) is a non-contact automatic identification technology that emerged in the 1990s. It uses the characteristics of radio frequency signal prop...[Details]
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]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[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]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Analog engineers have traditionally struggled with complexity when designing power supplies that required multiple outputs, dynamic load sharing, hot-swap, or extensive fault-handling capabilities....[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
introduction
In the discharge process of tokamak plasma physics, the study of rupture and sawtooth is of great significance. Rupture and sawtooth exist in most tokamaks. Rupture is a notew...[Details]
The reason for the light decay of white LEDs: the decline of phosphor performance
So far, the rapid decline of the luminous performance of white light LEDs, especially low-power white light LE...[Details]
Electronic systems are located at different points on the automotive power bus and therefore often need to operate under very stringent power requirements. These include load dump, cold crank, very lo...[Details]
introduction
The emergence of high-performance, low-power embedded CPUs and high-reliability network operating systems has made it possible to implement applications with large amounts of comp...[Details]
1. Overview
The Virtual CAN Interface (VCI) function library is an application program interface specifically provided for the use of ZLGCAN devices on PCs. The functions in the library ar...[Details]
1 Introduction
Building Automation System (BAS) is a distributed monitoring system (DCS) designed according to distributed information and control theory. It is the result of the mutual de...[Details]
1 Introduction
With the development of control, computer, communication, network technology, etc., a new control technology, namely fieldbus, has emerged in the field of industrial control...[Details]
DSP and ARM Processors
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