基于51单片机信号发生器的设计外文翻译大学论文Word格式.docx

1、 题 目 The SCM and Vision2 所在系 电气与信息工程系 学生姓名 冉乾乾 专 业 电子信息工程 班 级 电信002 学号 10010085 指导教师 金印彬 2014 年 5 月 The SCM and Vision2一、 Principle of MCUSingle-chip is an integrated on a single chip a complete computer system. Even though most of his features in a small chip, but it has a need to complete the majo

2、rity of computer components: CPU, memory, internal and external bus system, most will have the Core. At the same time, such as integrated communication interfaces, timers, real-time clock and other peripheral equipment. And now the most powerful single-chip microcomputer system can even voice, image

3、, networking, input and output complex system integration on a single chip. Also known as single-chip MCU （Microcontroller）, because it was first used in the field of industrial control. Only by the single-chip CPU chip developed from the dedicated processor. The design concept is the first by a lar

4、ge number of peripherals and CPU in a single chip, the computer system so that smaller, more easily integrated into the complex and demanding on the volume control devices. INTEL the Z80 is one of the first design in accordance with the idea of the processor, From then on, the MCU and the developmen

5、t of a dedicated processor parted ways. Early single-chip 8-bit or all of the four. One of the most successful is INTELs 8031, because the performance of a simple and reliable access to a lot of good praise. Since then in 8031 to develop a single-chip microcomputer system MCS51 series. Based on sing

6、le-chip microcomputer system of the system is still widely used until now. As the field of industrial control requirements increase in the beginning of a 16-bit single-chip, but not ideal because the price has not been very widely used. After the 90s with the big consumer electronics product develop

7、ment, single-chip technology is a huge improvement. INTEL i960 Series with subsequent ARM in particular, a broad range of applications, quickly replaced by 32-bit single-chip 16-bit single-chip high-end status, and enter the mainstream market. Traditional 8-bit single-chip performance has been the r

8、apid increase in processing power compared to the 80s to raise a few hundred times. At present, the high-end 32-bit single-chip frequency over 300MHz, the performance of the mid-90s close on the heels of a special processor, while the ordinary price of the model dropped to one U.S. dollars, the most

9、 high-end models, only 10 U.S. dollars. Contemporary single-chip microcomputer system is no longer only the bare-metal environment in the development and use of a large number of dedicated embedded operating system is widely used in the full range of single-chip microcomputer. In PDAs and cell phone

10、s as the core processing of high-end single-chip or even a dedicated direct access to Windows and Linux operating systems. More than a dedicated single-chip processor suitable for embedded systems, so it was up to the application. In fact the number of single-chip is the worlds largest computer. Mod

11、ern human life used in almost every piece of electronic and mechanical products will have a single-chip integration. Phone, telephone, calculator, home appliances, electronic toys, handheld computers and computer accessories such as a mouse in the Department are equipped with 1-2 single chip. And pe

12、rsonal computers also have a large number of single-chip microcomputer in the workplace. Vehicles equipped with more than 40 Department of the general single-chip, complex industrial control systems and even single-chip may have hundreds of work at the same time! SCM is not only far exceeds the numb

13、er of PC and other integrated computing, even more than the number of human beings.Hardwave introductionThe 8051 family of micro controllers is based on an architecture which is highly optimized for embedded control systems. It is used in a wide variety of applications from military equipment to aut

14、omobiles to the keyboard on your PC. Second only to the Motorola 68HC11 in eight bit processors sales, the 8051 family of microcontrollers is available in a wide array of variations from manufacturers such as Intel, Philips, and Siemens. These manufacturers have added numerous features and periphera

15、ls to the 8051 such as I2C interfaces, analog to digital converters, watchdog timers, and pulse width modulated outputs. Variations of the 8051 with clock speeds up to 40MHz and voltage requirements down to 1.5 volts are available. This wide range of parts based on one core makes the 8051 family an

16、excellent choice as the base architecture for a companys entire line of products since it can perform many functions and developers will only have to learn this one platform. The basic architecture consists of the following features: an eight bit ALU 32 descrete I/O pins （4 groups of 8） which can be individually accessed two 16 bit timer/counters full duplex UART 6 interrupt sources