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  • Posts Courses Resource Reference Design Circuit Articles

    1. 3DIC_Executive_Slides-Overview_CN

      3DIC_Executive_Slides-Overview_CN

      download times 0 type Application Documents uploaded 2013-02-01

    2. Microcontroller Peripheral Devices Practical Handbook - Power Devices

      A single-chip microcomputer is an integrated circuit chip that uses ultra-large-scale integrated circuit technology to integrate a central processing unit (CPU) with data processing capabilities, random access memory (RAM), read-only memory (ROM), multiple I/O ports and interrupt systems, timers/counters and other functions (may also include display driver circuits, pulse width modulation circuits, analog multiplexers, A/D converters and other circuits) on a silicon chip to form a small and complete microcomputer system. It is widely used in the field of industrial control. Since the 1980s, the 4-bit and 8-bit single-chip microcomputers at that time have developed to the current 32-bit 300M high-speed single-chip microcomputers.

      download times 4 type Application Documents uploaded 2013-01-05

    3. A Practical Guide to Computer Communications and RS-232 Interfaces

      One of the communication interfaces on personal computers, an asynchronous transmission standard interface established by the Electronic Industries Association (EIA). Usually the RS-232 interface appears in the form of 9 pins (DB-9) or 25 pins (DB-25). Generally, there are two sets of RS-232 interfaces on personal computers, called COM1 and COM2.

      download times 0 type Technical Documentation uploaded 2013-01-05

    4. Single chip high level language C51_Windows environment programming and application

      The 80C51 microcontroller belongs to the MCS-51 series of microcontrollers, developed by Intel. Its structure is an extension of the 8048, improving the shortcomings of the 8048, adding instructions such as multiplication (MUL), division (DIV), subtraction (SUBB), comparison (CMP), 16-bit data pointer, Boolean algebra operations, as well as serial communication capabilities and 5 interrupt sources. It uses a 40-pin dual in-line package (DIP), with 128 RAM units and 4K ROM. The 80C51 has two 16-bit timer counters, two external interrupts, two timer count interrupts, and a serial interrupt, and has four 8-bit parallel input ports. The 80C51 has a clock circuit inside, but it needs a quartz crystal and a fine-tuning capacitor to be connected externally. The system uses a 12MHz crystal frequency. Since the system performance of the 80C51 meets the requirements of system data acquisition and time accuracy, and the product output is rich and the source is wide, and the application is also mature, it is used as the control core.

      download times 2 type Technical Documentation uploaded 2013-01-05

    5. C language design for embedded systems

      C language is a computer programming language, which has the characteristics of both high-level language and assembly language. It was launched by DMRitchie of Bell Laboratories in the United States in 1972. After 1978, C language has been ported to large, medium, small and microcomputers. It can be used as a working system design language to write system applications, and it can also be used as an application design language to write applications that do not rely on computer hardware. It has a wide range of applications and has strong data processing capabilities. It is not only used in software development, but also in various scientific research. It is suitable for writing system software, three-dimensional, two-dimensional graphics and animations, and specific applications such as single-chip microcomputers and embedded system development.

      download times 2 type Technical Documentation uploaded 2013-01-05

    6. Visual C serial communication technology and engineering practice

      Serial interface, also known as serial communication interface (usually refers to COM interface), is an expansion interface that uses serial communication.

      download times 2 type Technical Documentation uploaded 2013-01-05

    7. uvision2 debugging commands

      Product Introduction Keil Uvision2 is a 51 series compatible microcontroller C language software development system produced by Keil Software of Germany. It is developed using a syntax close to the traditional C language. Compared with assembly language, C language has obvious advantages in terms of function, structure, readability and maintainability.

      download times 0 type Source Code uploaded 2013-01-05

    8. MP3 chip data sheet

      The solution (decoding chip) is divided into single chip and dual chip. A single chip refers to a chip in which the control part and the MP3 decoding operation part are integrated into one integrated circuit. A dual chip is a chip in which the control part is one integrated circuit and the MP3 decoding operation part is another integrated circuit. A typical example is Philips. The solutions mainly come from the following manufacturers: Philips: SAA7750/SAA7751 /PNX0101ET has good sound quality, powerful functions and stability. The first choice for high-end machines is to add a control chip in addition to the decoding chip, which is expensive. It has MP3 encoding function, sufficient bass volume, excellent midrange performance, and average treble.

      download times 3 type Application Documents uploaded 2013-01-05

    9. Bluetooth System Technical Specifications

      Bluetooth is a radio technology that supports short-distance communication between devices (generally within 10m). It can exchange wireless information between many devices including mobile phones, PDAs, wireless headsets, laptops, and related peripherals. Using \"Bluetooth\" technology, it can effectively simplify the communication between mobile communication terminal devices, and can also successfully simplify the communication between devices and the Internet, so that data transmission becomes faster and more efficient, broadening the way for wireless communication. Bluetooth uses a decentralized network structure, fast frequency hopping and short packet technology, supports point-to-point and point-to-multipoint communication, and works in the globally common 2.4GHz ISM (i.e. industrial, scientific, and medical) frequency band. Its data rate is 1Mbps. It uses a time division duplex transmission scheme to achieve full-duplex transmission.

      download times 4 type Application Documents uploaded 2013-01-05

    10. Proteus.Professional.7.1

      Proteus software is an EDA tool software published by Labcenter Electronics in the UK (the general agent of the software in China is Guangzhou Fengbiao Electronic Technology Co., Ltd.). It not only has the simulation function of other EDA tool software, but also can simulate single-chip microcomputers and peripheral devices. It is currently the best tool for simulating single-chip microcomputers and peripheral devices. Although it has just started to be promoted in China, it has been favored by single-chip microcomputer enthusiasts, teachers engaged in single-chip microcomputer teaching, and scientific and technological workers dedicated to the development and application of single-chip microcomputers.

      download times 4 type Tools uploaded 2013-01-05

    11. Four-wheel drive vehicle structure diagram

      Four-wheel drive vehicle structure diagram.zip

      download times 4 type Application Documents uploaded 2013-01-05

    12. LM3S8962 Evaluation Board

      The example projects based on the LM3S8962 Evaluation Kit are all developed using IAR Embedded Workbench for ARM (EWARM). You can download the EWARM KickStart version (32KB code size limit) from the following link. This version is free to use. http://supp.iar.com/Download/SW/?item=EWARM-KS32

      download times 5 type Application Documents uploaded 2012-12-31

    13. Huawei Hardware Engineer\'s Manual

      Huawei Hardware Engineer Manual (Internal Documents)

      download times 3 type Application Documents uploaded 2012-12-25

    14. Illustrated Practical Electronic Technology Series--100 Examples of OP Amplifier Application Techniques

      Illustrated Practical Electronic Technology Series--100 Examples of OP Amplifier Application Techniques

      download times 0 type Application Documents uploaded 2012-12-25

    15. 141 Examples of Sensor Application Skills in the Practical Electronic Technology Series

      141 Examples of Sensor Application Skills in the Practical Electronic Technology Series

      download times 2 type Technical Documentation uploaded 2012-12-25

    16. Common device information

      Commonly used device information Commonly used device information

      download times 2 type Application Documents uploaded 2012-12-25

    17. 7805 current expansion circuit

      This circuit is a very common linear three-terminal regulator current expansion circuit. When we use it in practice, we encounter some faults due to lack of consideration or low-level errors. Therefore, we post it to let friends in the forum discuss it so that friends who use this circuit in the future will not repeat the same mistakes.

      download times 1 type Application Documents uploaded 2012-12-25

    18. DC-DC Converter Lecture

      Definition DC-DC: A circuit that only transforms DC parameters

      download times 3 type Application Documents uploaded 2012-12-25

    19. Current expansion circuit of LM317 three-terminal voltage regulator

      Current expansion circuit of LM317 three-terminal voltage regulator

      download times 1 type Application Documents uploaded 2012-12-25

    20. LM317 Switching Power Supply Basics Lecture

      A switching power supply is an amplifier with low output impedance. All the theory learned in college control systems courses applies to both linear and switching regulators. In the example above, the output voltage is higher than the supply voltage, which is usually not possible. However, the output stage of the amplifier is a DC/DC boost regulator, so this is possible. If the output is set to 4.5V, this circuit is called a low dropout regulator. If the output is 2.5V, it can be called an NPN linear regulator, such as the LM317.

      download times 0 type Application Documents uploaded 2012-12-25

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