There are always people on the Internet talking about how overtime is and how they are exploited. In fact, in my opinion, working overtime in your spare time is also a good choice. If you don’t have a...
I hope this will be helpful to everyone in designing high-frequency boards. I still have a lot of information on special boards. If you need it, please leave a message and I will continue to update it...
Samsung 2440A chip. Just set the IO port, the code is as follows: m_pIOPregs->GPJCON &= ~(0x3 GPJCON |= (0x1 GPJDAT &= ~(0x1 GPJDAT = 0x%x **********"),m_pIOPregs- >GPJDAT)); RETAILMSG(1,(TEXT("******...
When reading the arm MMU document, there is a paragraph that I don't understand: Regarding the "Noncacheable, bufferable" status of DCache, the document explains it as follows: DCache disabled. Read f...
Linux driver development seems to be a very high-end profession. After all, there are too many upper-level application developers, and the threshold is not particularly high. However, there are far fe...
The isolation technology in electromagnetic compatibility is discussed, including magnetic isolation, photoelectric isolation, electromechanical isolation, acoustic isolation and floating ground techn...
With the promotion of the construction of intelligent communities in the country, anti-theft systems have become essential equipment for intelligent communities. Especially in recent years, the urg...[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]
As a wireless broadband metropolitan area network standard, WiMAX technology has greater advantages than previous 3.5GHz MMDS products in terms of non-line-of-sight transmission and spectrum utiliz...[Details]
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[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]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[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. Project Introduction
Shandong Dezhou Xingtai Paper Co., Ltd. is a newly built high-end paperboard production enterprise with domestic leading level established by Shandong Zhaodongfang Pape...[Details]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[Details]
We know that the inverter consists of two parts: the main circuit and the control circuit. Due to the nonlinearity of the main circuit (switching action), the inverter itself is a source of harmoni...[Details]
Introduction
my country's rapid economic growth is mainly due to the development of manufacturing and the acceleration of urbanization. However, urbanization cannot be achieved at the expense ...[Details]
1. Basic principles of organic/polymer solar cells
The basic principle of organic/polymer solar cells is to use the photovoltaic effect generated by light incident on the heterojunction of sem...[Details]
With the tense global energy situation and the improvement of human environmental protection awareness, the research and development of power batteries is in full swing around the world. At present...[Details]
Different places have accumulated certain experience in equalizing charging of battery packs, but it is difficult to master it properly. Long-term non-equalizing charging or frequent equalizing cha...[Details]
1. Self-test of lithium battery capacity
The nominal capacity of the CECT9898 OEM mobile phone lithium battery is 3800mAh, and its battery volume is comparable to the 1500mAh battery of ot...[Details]
Talking
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