8085 microprocessor

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Abbreviation of Electronic Computer

Ball Grid Array, micro ball network array) Nm) MCA (machine check Architecture) MCU (micro-controller unit) MCT (memory controller, memory controller) MESI (modified, exclusive, shared, invalid: Modify, exclude, share, discard) Mf (microops fusion, micro-command merge) Mm (micron metric, micron) MMX (multimedia extensions, multimedia Extended Instruction Set) MMU (Multimedia Unit, Multimedia Unit) MMU (Memory Management Unit) Mn (model numbers, model number) Mflops (million floationg point/seco

AT45DB041B Chinese data-AT45DB041 Chinese Data

is about 80 s, and is compatible with CMOS and TTL input and output. AT45DB041 is enabled through the chip selection pin/cs, and reads and writes data through the serial output (so) and serial input (SI. Reads and writes are controlled by the serial clock (sck.The running of the device is controlled by the instructions of the microprocessor. A valid command starts from the descent edge of the/CS pin and follows the corresponding 8-bit operation code

Embedded Development Learning plan

The arm + LINUX route focuses on the embedded Linux operating system and its application software development goals: (1) master the structure and principle of mainstream embedded microprocessor (initially set as ARM9) (2) You must master an embedded operating system (the initial version is uClinux or Linux, and the version is to be determined) (3) be familiar with the embedded software development process and build at least one embedded software proje

In-depth explanation of Key Technologies in vro Technology

devices that use microprocessor or microcontroller chip (MCU), peripheral circuits, and internal programs to implement specific functions. For example, 8-bit single-chip microcomputer, 32 ARM, and DSP chip all belong to the category of embedded core chip. The 8-bit MCU market has gradually stabilized, and 32-bit MPU represents the development direction of embedded technology and is accelerating development. In the 32-bit embedded

CPU protection mode in-depth quest

and can be arranged in ticks, that is, the program is programmed to move from one task to another after a fixed length of time.For example, a task can be executed in a cyclic manner, that is, the most recently executed task goes back to the end of the execution list. Although the process is done in ticks, the CPU will still make the "person" feel that all tasks are running at the same time.A task is a collection of programs that perform a particular function, or it can be called a procedure. So

Design of lighting monitoring system in ZigBee classroom

building lighting system real-time monitoring. The Coordinator is responsible for establishing, managing and maintaining the network, receiving the information of each routing node, and then sending the data to the computer through the serial port, displaying the real-time situation in the computer terminal and transmitting the control command. The routing node has the functions of terminal control, information acquisition and automatic alarm. 2.2 Hardware Design The classroom node is mainly co

Adventure Project (3)

the first letter of the two people, a, V, and A, which is not officially recognized by ATMEL ). I think it's the most cost-effective version of the mega Series. Originally, it was uncomfortable for Xiao Zhu to switch the developed hardware platform when he was a little familiar with the 80C51 series. Discard familiar tools such as Keil and serial download tool to get familiar with new tools. Xiao Zhu started the mix project with such emotions. The configuration of the AVR series microcontr

The origins of endian and big-edian and little-Endian

-EndianA computer architecture in which, within a given multi-byte numericRepresentation, the most significant byte has the lowest address (Word is stored "big-end-First ").Most processors, including the IBM 370 family, the PDP-10,Motorola microprocessor families, and most of the various RISC DesignsCurrent in mid-1993, are big-Endian. [from: free on-line DictionaryComputing or jargon file]Big-Endian: a term in the computer architecture that describes

General knowledge of IC card making

microprocessor (CPU) and memory, but also I/O interface (I/O interface) and peripherals. Therefore, it is actually a card-based microcomputer, or a veritable minimum computer terminal. Because of its powerful function, this kind of card has great development potential. However, due to the difficulty and high cost of the card manufacturing technology, it is not popular at present.Intelligent IC Card The so-called Intelligent IC Card is in the IC card

Lightweight LINUX: use old hardware to break the software and hardware upgrade cycle

BusyBox, I keep valuable resources and save a lot of time investment. I cannot find other tool sets like this.       Components and preparations To continue, you need to have the right to use an existing Linux system-it is better that the microprocessor used to run the system is the same series as that of your target system. An older Linux-running portable computer is an excellent environment for writing and editing, but it cannot compete with modern

Deep understanding of Linux Kernel notes-chapter NO. 02: Memory addressing. MD

2.1 Memory Address Three different addresses for 80x86 microprocessors: Logical address: The address used to specify an operand or an instruction in a machine language instruction Each logical address has a segment and offset, which indicates the distance between the point where the segment starts and the actual address. Linear address: Also becomes a virtual address, is a 32-bit unsigned integer that can be used to represent addresses up to 4G

Embedded (linux+arm) circuit diagram

Arm+linux route, focuses on embedded Linux operating system and its application software development goals:(1) Master the structure and principle of the mainstream embedded microprocessor (initially set as ARM9)(2) must master an embedded operating system (initially set to Uclinux or Linux, version tbd)(3) must be familiar with the embedded software development process and at least one embedded software project.The benefits of engaging in embedded sof

The difference and introduction of CPU, MCU, MPU, DSP

recently by the MCU and MPU dizzy, the Internet to find some relevant information, tidy up. The CPU (central processing Unit, CPU) developed three branches, one is the DSP (digital Signal processing/processor, signal processing), the other two are MCU (Micro Control Unit, microcontroller unit) and MPU (Micro Processor Unit, microprocessor unit).MCU integrates the on-chip peripheral devices, MPU without peripheral devices (such as memory array), is a

Differences between LINUX and other operating systems

Article Title: differences between LINUX and other operating systems. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. It is very important to know how Linux differs from other operating systems. Here we mainly discuss the operating systems on PCs, such as MSDOS, Windows, and Unix. First, you must note that Linux and these operating systems can coexist on the

Is the C language value assignment statement an atomic operation?

I often see some people discuss whether the C language assignment statement is an atomic operation? Is the C ++ statement an atomic operation? Webopedia:Atomic implies indivisibility and irreducibility, so an atomic operation must be specified med entirely or not completed MED at all.An operation during which a processor can simultaneously read a location and write it in the same bus operation. this prevents any other processor or I/O device from writing or reading memory until the operation is

Cainiao growth Manual: in-depth analysis of router technology (1)

forgive me. Overview What is a router? Figure 1 The Internet is connected by routers, which are the core devices of the Internet or an IP network. The increasing bandwidth access has led to the increasing demand for routers. What kind of technical product is vro? When talking about the development of vrouters, we can't help but talk about the development of "embedded" devices. That's right. Generally speaking, vrouters are embedded products. So what is an embedded devic

C # Parallel programming

A Task-based programming Shared memory multi-core OS and distributed memory OS Shared Memory multicore os-A microprocessor consists of multiple cores, and each core shares a piece of private memory;Distributed memory os--consists of multiple microprocessors, each microprocessor can have its own private memory, the microprocessor can be located on di

contiki--Lightweight, flexible operating system for micro-sensor networks

an operating system contiki--for resource-constrained environments. Contiki provides the ability to dynamically load and unload personal programs and services, its kernel-based time-driven (Event-driven), and support for preemptive multithreaded mechanisms. Programs that explicitly require multi-threading will be linked to a library, which enables preemptive multithreading.Contiki is implemented by the C language and has been ported to many microprocessor

Compilation study (ii)--8086CPU

One, 8086CPU 1, microprocessor(1) Micro-control machine: Also known as single-chip microcomputer (2) DSP chip: Digital signal processing chip (3) Embedded microprocessor (4) Universal microprocessor: PC Station, workstation, server using the processor 2. Internal structure:(1) Bus interface Unit (BIU): A. Responsible for data transmission and instruction Reading

Design of lighting monitoring system in ZigBee classroom

building lighting system real-time monitoring. The Coordinator is responsible for establishing, managing and maintaining the network, receiving the information of each routing node, and then sending the data to the computer through the serial port, displaying the real-time situation in the computer terminal and transmitting the control command. The routing node has the functions of terminal control, information acquisition and automatic alarm. 2.2 Hardware Design The classroom node is mainly co

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