Architecture and Implementation
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Cortex -A8
of the ARM
Microprocessor
October 2005
Introduction
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The ARM Cortex -A8 microprocessor is the first applications microprocessor in ARM!ˉs
new Cortex family. With high performance and power efficiency, it targets a wide
variety of mobile and consumer applications Including mobile phones, set-top boxes,
CFE contains the following important features:
* Easy to port to new SB1250/BCM1480 designs
* Initializes CPUs, caches, memory controllers, and peripherals
* Built-in device drivers for SB1250 SOC peripherals
* Several console choices, Including serial ports, ROM
emulators, JTAG, etc.
* Environment storage in NV EEPROM, flash, etc.
* Supports big or little endian operation
* Supports 32-bit and 64-bit processors
* Support for network bootstrap. Network protocols supported
include IP,ARP,ICMP,UDP,DHCP,TFTP.
* Support for disk bootstrap.
* Provides an external API for boot loaders and startup programs
* Simple user interface. UI is easy to remove for embedded apps.
灰色預測GM（1，1）模型的matlab源代碼，包括預測模型的建立，以及模型的精度檢驗指標c,p的計算-Gray prediction GM (1,1) model matlab source code, Including the prediction model, as well as indicators of model accuracy test c, p calculation
The Fuzzy Logic Toolbox™ product extends the MATLAB® technical computing environment with tools for designing systems based on fuzzy logic. Graphical user interfaces (GUIs) guide you through the steps of fuzzy inference system design. Functions are provided for many common fuzzy logic methods, Including fuzzy clustering and adaptive neurofuzzy learning.
asp 客戶關系管理系統的實際與實現，包括源碼和相關文檔（論文）-asp customer relationship management system and implementation of practical, Including source code and related documentation (Thesis)
18B20和單總線的時序及其工作原理,51單片機控制的18B20程序(包括多個18B20的程序)18B20 and single-bus timing and its working principle, control of 51 single-chip 18B20 procedures (Including procedures for more than 18B20)
This is a simulator written in Tcl to simulate a network node carrying GSM and GPRS traffics with QoS mechanisms. The payload type Including circuit-switched voice, VoIP and web traffic, and the performance Including packet drop, delay can be analyzed. The implemented QoS mechanism is DiffServ, with 4 RED queues for different services with different priorities.
The software and hardware development fields evolved along separate paths through the end of the 20th century. We seem to have come full circle, however. The previously rigid hardware on which our programs run is softening in many ways. Embedded systems are largely responsible for this softening. These hidden computing systems drive the electronic products around us, Including consumer products like digital cameras and personal digital assistants, office automation equipment like copy machines and printers, medical devices like heart monitors and ventilators, and automotive electronics like cruise controls and antilock brakes.
Embedded systems force designers to work under incredibly tight time-tomarket, power consumption, size, performance, flexibility, and cost constraints.
Many technologies introduced over the past two decades have sought to help satisfy these constraints. To understand these technologies, it is important to first distinguish the underlying embedded systems elements.
For developers who design and program devices that use the USB interface. Introduce the USB
and help to get your devices and communicating as quickly and easily as possible.The USB is versatile enough for a wide range of peripheral devices. Standard peripherals that use USB include mice, keyboards, drives, printers,
and audio/video devices. USB is also suitable for data-acquisition units, control
systems, and other devices with specialized functions, Including one-of-a-kind designs.
