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The AT89C52 is a low-power, high-performance CMOS 8-bit microcomputer with 8Kbytes of Flash programmable and erasable read only memory (PEROM). The deviceis manufactured using Atmel’s high-density nonvolatile memory technology and iscompatible with the industry-standard 80C51 and 80C52 instruction set and pinout.The on-chip Flash allows the program memory to be reprogrammed in-system or by aconventional nonvolatile memory programmer. By combining a versatile 8-bit CPUwith Flash on a monolithic chip, the Atmel AT89C52 is a powerful microcomputerwhich provides a highly-flexible and cost-effective solution to many embedded controlapplications.
標(biāo)簽：
89c
c52
at
上傳時(shí)間：
2013-11-10
上傳用戶(hù)：1427796291
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The Tri-Mode Ethernet MAC (TEMAC) UltraController-II module is a minimal footprint,embedded network processing engine based on the PowerPC™ 405 (PPC405) processor coreand the TEMAC core embedded within a Virtex™-4 FX Platform FPGA. The TEMACUltraController-II module connects to an external PHY through Gigabit Media IndependentInterface (GMII) and Management Data Input/Output (MDIO) interfaces and supports tri-mode(10/100/1000 Mb/s) Ethernet. Software running from the processor cache reads and writesthrough an On-Chip Memory (OCM) interface to two FIFOs that act as buffers between thedifferent clock domains of the PPC405 OCM and the TEMAC.
標(biāo)簽：
XAPP
807
MAC
封裝
上傳時(shí)間：
2013-10-26
上傳用戶(hù)：yuzsu
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第八章 labview的編程技巧
本章介紹局部變量、全局變量、屬性節(jié)點(diǎn)和其他一些有助于提高編程技巧的問(wèn)題，恰當(dāng)?shù)剡\(yùn)用這些技巧可以提高程序的質(zhì)量。
８．１ 局部變量
嚴(yán)格的語(yǔ)法盡管可以保證程序語(yǔ)言的嚴(yán)密性，但有時(shí)它也會(huì)帶來(lái)一些使用上的不便。在labview這樣的數(shù)據(jù)流式的語(yǔ)言中，將變量嚴(yán)格地分為控制器（Control）和指示器（Indicator），前者只能向外流出數(shù)據(jù)，后者只能接受流入的數(shù)據(jù)，反過(guò)來(lái)不行。在一般的代碼式語(yǔ)言中，情況不是這樣的。例如我們有變量a、b和c，只要需要我們可以將a的值賦給b，將b的值賦給c等等。前面所介紹的labview內(nèi)容中，只有移位積存器即可輸入又可輸出。另外，一個(gè)變量在程序中可能要在多處用到，在圖形語(yǔ)言中勢(shì)必帶來(lái)過(guò)多連線(xiàn)，這也是一件煩人的事。還有其他需要，因此labview引入了局部變量。
標(biāo)簽：
labview
教程
上傳時(shí)間：
2013-10-27
上傳用戶(hù)：xieguodong1234
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Keil C51 V8 專(zhuān)業(yè)開(kāi)發(fā)工具（PK51）
PK51是為8051系列單片機(jī)所設(shè)計(jì)的開(kāi)發(fā)工具，支持所有8051系列衍生產(chǎn)品，，支持帶擴(kuò)展存儲(chǔ)器和擴(kuò)展指令集（例如Dallas390/5240/400,Philips 51MX,Analog Devices MicroConverters）的新設(shè)備,以及支持很多公司的一流的設(shè)備和IP內(nèi)核,比如Analog Devices, Atmel, Cypress Semiconductor, Dallas Semiconductor, Goal, Hynix, Infineon, Intel, NXP(founded by Philips), OKI, Silicon Labs,SMSC, STMicroeleectronics,Synopsis, TDK, Temic, Texas Instruments,Winbond等。
通過(guò)PK51專(zhuān)業(yè)級(jí)開(kāi)發(fā)工具，可以輕松地了解8051的On-chip peripherals與及其它關(guān)鍵特性。
The PK51專(zhuān)業(yè)級(jí)開(kāi)發(fā)工具包括…
l μVision
Ø 集成開(kāi)發(fā)環(huán)境
Ø 調(diào)試器
Ø 軟件模擬器
l Keil 8051擴(kuò)展編譯工具
Ø AX51宏匯編程序
Ø ANSI C編譯工具
Ø LX51 連接器
Ø OHX51 Object-HEX 轉(zhuǎn)換器
l Keil 8051編譯工具
Ø A51宏匯編程序
Ø C51 ANSI C編譯工具
Ø BL51 代碼庫(kù)連接器
Ø OHX51 Object-HEX 轉(zhuǎn)換器
Ø OC51 集合目標(biāo)轉(zhuǎn)換器
l 目標(biāo)調(diào)試器
Ø FlashMON51 目標(biāo)監(jiān)控器
Ø MON51目標(biāo)監(jiān)控器
Ø MON390 (Dallas 390)目標(biāo)監(jiān)控器
Ø MONADI (Analog Devices 812)目標(biāo)監(jiān)控器
Ø ISD51 在系統(tǒng)調(diào)試
l RTX51微實(shí)時(shí)內(nèi)核
你應(yīng)該考慮PK51開(kāi)發(fā)工具包,如果你…
l 需要用8051系列單片機(jī)來(lái)開(kāi)發(fā)
l 需要開(kāi)發(fā) Dallas 390 或者 Philips 51MX代碼
l 需要用C編寫(xiě)代碼
l 需要一個(gè)軟件模擬器或是沒(méi)有硬件仿真器
l 需要在單芯片上基于小實(shí)時(shí)內(nèi)核創(chuàng)建復(fù)雜的應(yīng)用
標(biāo)簽：
C51
V8
開(kāi)發(fā)工具
上傳時(shí)間：
2013-10-30
上傳用戶(hù)：yy_cn
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The LPC1850/30/20/10 are ARM Cortex-M3 based microcontrollers for embeddedapplications. The ARM Cortex-M3 is a next generation core that offers systemenhancements such as low power consumption, enhanced debug features, and a highlevel of support block integration.The LPC1850/30/20/10 operate at CPU frequencies of up to 150 MHz. The ARMCortex-M3 CPU incorporates a 3-stage pipeline and uses a Harvard architecture withseparate local instruction and data buses as well as a third bus for peripherals. The ARMCortex-M3 CPU also includes an internal prefetch unit that supports speculativebranching.The LPC1850/30/20/10 include up to 200 kB of on-chip SRAM data memory, a quad SPIFlash Interface (SPIFI), a State Configuration Timer (SCT) subsystem, two High-speedUSB controllers, Ethernet, LCD, an external memory controller, and multiple digital andanalog peripherals.
標(biāo)簽：
Cortex-M
1850
LPC
內(nèi)核微控制器
上傳時(shí)間：
2014-12-31
上傳用戶(hù)：zhuoying119
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On the LPC13xx, programming, erasure and re-programming of the on-chip flash can be performed using In-System Programming (ISP) via the UART serial port, and also, can be performed using In-Application Programming (IAP) calls directed by the end-user code. For In-System Programming (ISP) via the UART serial port, the ISP command handler (resides in the bootloader) allows erasure of one or more sector (s) of the on-chip flash memory.
標(biāo)簽：
1300
LPC
勘誤
數(shù)據(jù)手冊(cè)
上傳時(shí)間：
2013-12-13
上傳用戶(hù)：lmq0059
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The power of programmability gives industrial automation designers a highly efficient， cost-effective alternative to traditional motor control units （MCUs）。 The parallel-processing power， fast computational speeds， and connectivity versatility of Xilinx® FPGAs can accelerate the implementation of advanced motor control algorithms such as Field Oriented Control （FOC）。
Additionally， Xilinx devices lower costs with greater on-chip integration of system components and shorten latencies with high-performance digital signal processing （DSP） that can tackle compute-intensive functions such as PID Controller， Clark/Park transforms， and Space Vector PWM.
The Xilinx Spartan®-6 FPGA Motor Control Development Kit gives designers an ideal starting point for evaluating time-saving， proven， motor-control reference designs. The kit also shortens the process of developing custom control capabilities， with integrated peripheral functions （Ethernet， PowerLink， and PCI® Express）， a motor-control FPGA mezzanine card （FMC） with built-in Texas Instruments motor drivers and high-precision Delta-Sigma modulators， and prototyping support for evaluating alternative front-end circuitry.
標(biāo)簽：
賽靈思
電機(jī)控制
開(kāi)發(fā)套件
英文
上傳時(shí)間：
2013-10-28
上傳用戶(hù)：wujijunshi
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This book introduces embedded systems to C and C++ programmers. Topics include testing memory devices, writing and erasing Flash memory, verifying nonvolatile memory contents, controlling on-chip peripherals, device driver design and implementation, optimizing embedded code for size and speed, and making the most of C++ without a performance penalty. Pages : 336 Slots : 1
標(biāo)簽：
programmers
introduces
embedded
include
上傳時(shí)間：
2013-12-10
上傳用戶(hù)：shizhanincc
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yright 2002 Cygnal Integrated Products, Inc. // // Filename: LIION_BC_MAIN.c // Target Device: 8051F300 // Created: 11 SEP 2002 // Created By: DKC // Tool chain: KEIL Eval C51 // // This is a stand alone battery charger for a Lithium ION battery. // It utilizes a buck converter, controlled by the on-chip 8-bit PWM, // to provide constant current followed by constant voltage battery charge.
標(biāo)簽：
LIION_BC_MAIN
Integrated
Filename
Products
上傳時(shí)間：
2013-12-23
上傳用戶(hù)：牧羊人8920
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C++完美演繹 經(jīng)典算法 如 /* 頭文件：my_Include.h */ #include <stdio.h> /* 展開(kāi)C語(yǔ)言的內(nèi)建函數(shù)指令 */ #define PI 3.1415926 /* 宏常量，在稍后章節(jié)再詳解 */ #define circle(radius) (PI*radius*radius) /* 宏函數(shù)，圓的面積 */ /* 將比較數(shù)值大小的函數(shù)寫(xiě)在自編include文件內(nèi) */ int show_big_or_small (int a,int b,int c) { int tmp if (a>b) { tmp = a a = b b = tmp } if (b>c) { tmp = b b = c c = tmp } if (a>b) { tmp = a a = b b = tmp } printf("由小至大排序之后的結(jié)果:%d %d %d\n", a, b, c) } 程序執(zhí)行結(jié)果： 由小至大排序之后的結(jié)果:1 2 3 可將內(nèi)建函數(shù)的include文件展開(kāi)在自編的include文件中 圓圈的面積是=201.0619264
標(biāo)簽：
my_Include
include
define
3.141
上傳時(shí)間：
2014-01-17
上傳用戶(hù)：epson850
