英文:
八斗成语
MCU Description
最新网络营销方法 SCM is also known as micro-controller (Microcontroller Unit), commonly ud letters of the acronym MCU MCU that it was first ud in industrial control.Only a single chip by the CPU chip developed from a dedicated processor. The first design is by a large number of peripherals and CPU on a chip in the computer system, smaller, more easily integrated into a complex and demanding on the volume control device which. INTEL's Z80 is the first designed in accordance with this idea processor, then on the development of microcontroller and dedicated processors have parted ways.
Are 8-bit microcontroller early or 4 bits. One of the most successful is the INTEL 8031, for a simple, reliable and good performance was a lot of prai. Then developed in 8031 out of MCS51 MCU Systems. SCM systems bad on this system until now is still widely ud. With the incread requirements of industrial control field, began a 16-bit microcontroller, becau the cost is not satisfactory but have not been very widely ud. After 90 years with
the great development of consumer electronics, microcontroller technology has been a huge increa. With INTEL i960 ries, especially the later ries of widely ud ARM, 32-bit microcontroller quickly replace high-end 16-bit MCU status and enter the mainstream market. The traditional 8-bit microcontroller performance have been the rapid increa capacity increa compared to 80 the number of times. Currently, high-end 32-bit microcontroller clocked over 300MHz, the performance catching the mid-90's dedicated processor, while the average model prices fall to one U.S. dollars, the most high-end [1] model only 10 dollars. 自制元宵灯笼貂皮大衣Modern SCM systems are no longer only in the development and u of bare metal environment, a large number of proprietary embedded operating system is widely ud in the full range of SCM. The handheld computers and cell phones as the core processing of high-end microcontroller can even u a dedicated Windows and Linux operating systems.
SCM is more suitable than the specific processor ud in embedded systems, so it was up to the application. In fact the number of SCM is the world's largest computer. Modern human life ud in almost every piece of electronic and mechanical products will be integ
rated single chip. Phone, telephone, calculator, home appliances, electronic toys, handheld computers and computer accessories such as a mou with a 1-2 in both the Department of SCM. Personal computer will have a large number of SCM in the work. General car with more than 40 SCM, complex industrial control systems may even have hundreds of SCM in the same time work! SCM is not only far exceeds the number of PC and other computing the sum, or even more than the number of human beings
口腔共鸣
Single chip, also known as single-chip microcontroller, it is not complete a certain logic chips, but to a computer system integrated into a chip. Equivalent to a micro-computer, and computer than just the lack of a microcontroller I / O devices. General talk: a chip becomes a computer. Its small size, light weight, cheap, for the study, application and development of facilities provided. At the same time, learning to u the MCU is to understand the principle and structure of the computer the best choice.
SCM and the computer functions internally with similar modules, such as CPU, memory, parallel bus, the same effect as well, and hard disk memory devices, and different is its p
erformance of the components were relatively weak many of our home computer, but the price is low , usually not more than 10 yuan you can do with it ...... some control for a class is not very complicated electrical work is enough of. We are using automatic drum washing machine, smoke hood, VCD and so on appliances which could e its shadow! ...... It is primarily as a control ction of the core components
It is an online real-time control computer, control-line is that the scene is needed is a stronger anti-jamming ability, low cost, and this is, and off-line computer (such as home PC), the main difference.
Single chip
MCU is through running, and can be modified. Through different procedures to achieve different functions, in particular special unique features, this is another device much effort needs to be done, some great efforts are very difficult to do. A not very complex functions if the 50's with the United States developed 74 ries, or the 60's CD4000 ries of the pure hardware buttoned, then the circuit must be a large PCB board! But if the United Sta
各城市gdp
tes if the 70's with a ries of successful SCM market, the result will be a drastic change! Just becau you are prepared by microcomputer programs can achieve high intelligence, high efficiency and high reliability!
安阳市网络教研平台
As the microcontroller on the cost-nsitive, so now the dominant software or the lowest level asmbly language, which is the lowest level in addition to more than binary machine code language, and as so low why is the u? Many high-level language has reached the level of visual programming Why is not it? The reason is simply that there is no home computer as a single chip CPU, not as hard as a mass storage device. A visualization of small high-level language program which even if only one button, will reach tens of K of size! For the home PC's hard drive in terms of nothing, but in terms of the MCU is not acceptable. SCM in the utilization of hardware resources to be very high for the job so although the original is still in the compilation of a lot of u. The same token, if the giant computer operating system and applications run up to get home PC, home PC, also can not afford to.
恭贺新婚
Can be said that the twentieth century across the three "power" era, that is, the age of electricity, the electronic age and has entered into the computer age. However, this computer, usually refers to the personal computer, referred to as PC. It consists of the host, keyboard, monitor and other components. Another type of computer, most people do not know how. This computer is to give all kinds of intelligent machines single chip (also known as micro-controller). As the name suggests, this computer system took only a minimal integrated circuit, can be a simple operation and control. Becau it is small, usually hidden in the charged mechanical "stomach" in. It is in the device, like the human brain plays a role, it goes wrong, the whole plant was paralyzed. Now, this microcontroller has a very broad field of u, such as smart meters, real-time industrial control, communications equipment, navigation systems, and houhold appliances. Once all kinds of products were using SCM, can rve to upgrade the effectiveness of products, often in the product name preceded by the adjective - "intelligent," such as intelligent washing machines. Now some technical personnel of factories or other amateur electronics developers to engage in out of certain products, not the circuit is too complicat
ed, that function is too simple and can easily be copied. The reason may be stuck in the product did not u a microcontroller or other programmable logic device.
