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有源RFID局域定位系統(tǒng)設(shè)計(jì)

提出了一種基于PIC16F877A微控制器和CC2500射頻收發(fā)器芯片的低功耗、低成本RFID（Radio Frequency Identification， 無線射頻識別）局域定位系統(tǒng)設(shè)計(jì)方法，介紹了系統(tǒng)的定位工作原理、主要硬件電路模塊及定位算法的設(shè)計(jì)和實(shí)現(xiàn)。采用基于序列號對時(shí)隙數(shù)運(yùn)算的排序算法有效解決了多標(biāo)簽識別碰撞的問題，基于射頻輻射強(qiáng)度（Received Signal Strength Indication， RSSI）和圓周定位算法實(shí)現(xiàn)了基于RFID多標(biāo)簽系統(tǒng)的平面定位。實(shí)驗(yàn)測試表明，這種射頻定位方法能夠?qū)崿F(xiàn)一定精度下的無線局域定位的功能。

標(biāo)簽： RFID 有源 局域 定位

上傳時(shí)間： 2013-11-06

上傳用戶：weareno2

飛思卡爾超越比特位(voip)

  　　在一這期中，我們擴(kuò)大了討論的範(fàn)圍，涵蓋了在飛思卡爾產(chǎn)品系列中采用的多種技術(shù)，包括8位微控制器(MCU)、32位ColdFire控制器、我們曾獲大獎(jiǎng)的16位數(shù)字信號控制器(DSC)及ZigBee® 無線技術(shù)等。此外，我們還增加了一個(gè)來自設(shè)計(jì)聯(lián)盟合作伙伴的內(nèi)容，以及飛思卡爾客戶如何用我們的產(chǎn)品和服務(wù)取得成功的實(shí)例。

標(biāo)簽： voip 飛思卡爾 比特位

上傳時(shí)間： 2013-10-17

上傳用戶：1234xhb

LPC2300系列ARM微控制器介紹

標(biāo)簽： 2300 LPC ARM 微控制器

上傳時(shí)間： 2014-12-30

上傳用戶：gy592333

LPC314x系列ARM微控制器用戶手冊

The NXP LPC314x combine a 270 MHz ARM926EJ-S CPU core, High-speed USB 2.0OTG, 192 KB SRAM, NAND flash controller, flexible external bus interface, three channel10-bit A/D, and a myriad of serial and parallel interfaces in a single chip targeted atconsumer, industrial, medical, and communication markets. To optimize system powerconsumption, the LPC314x have multiple power domains and a very flexible ClockGeneration Unit (CGU) that provides dynamic clock gating and scaling.

標(biāo)簽： 314x LPC 314 ARM

上傳時(shí)間： 2013-10-11

上傳用戶：yuchunhai1990

LPC1850 Cortex-M3內(nèi)核微控制器數(shù)據(jù)手冊

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：zhuoying119

LPC4300系列ARM雙核微控制器產(chǎn)品數(shù)據(jù)手冊

The LPC4350/30/20/10 are ARM Cortex-M4 based microcontrollers for embeddedapplications. The ARM Cortex-M4 is a next generation core that offers systemenhancements such as low power consumption, enhanced debug features, and a highlevel of support block integration.The LPC4350/30/20/10 operate at CPU frequencies of up to 150 MHz. The ARMCortex-M4 CPU incorporates a 3-stage pipeline, uses a Harvard architecture withseparate local instruction and data buses as well as a third bus for peripherals, andincludes an internal prefetch unit that supports speculative branching. The ARMCortex-M4 supports single-cycle digital signal processing and SIMD instructions. Ahardware floating-point processor is integrated in the core.The LPC4350/30/20/10 include an ARM Cortex-M0 coprocessor, up to 264 kB of datamemory, advanced configurable peripherals such as the State Configurable Timer (SCT)and the Serial General Purpose I/O (SGPIO) interface, two High-speed USB controllers,Ethernet, LCD, an external memory controller, and multiple digital and analog peripherals

標(biāo)簽： 4300 LPC ARM 雙核微控制器

上傳時(shí)間： 2013-10-28

上傳用戶：15501536189

LPC1100系列微控制器勘誤手冊

This errata sheet describes both the known functional problems and anydeviations from the electrical specifications known at the release date ofthis document.Each deviation is assigned a number and its history is tracked in a table atthe end of the document.

標(biāo)簽： 1100 LPC 微控制器 勘誤

上傳時(shí)間： 2014-12-31

上傳用戶：thuyenvinh

LPC1300用戶手冊 16位定時(shí)計(jì)數(shù)器CT16B01

14.1本章導(dǎo)讀所有LPC1300系列Cortex-M3微控制器的16位定時(shí)器塊都相同。14.2基本配制CT16B0/1采用以下寄存器進(jìn)行配制：1）管腳：CT16B0/1管腳必須通過IOCONFIG寄存器塊進(jìn)行配制（見“I/O配制寄存器IOCON_PIOn”小節(jié)）。2）功率與外設(shè)時(shí)鐘：在SYSAHBCLKCTRL寄存器中置位位7與位8（見表“系統(tǒng)AHB時(shí)鐘控制寄存器位描述”）。

標(biāo)簽： 1300 LPC 16B B01

上傳時(shí)間： 2013-11-16

上傳用戶：liuwei6419

LPC315x系列ARM微控制器用戶手冊

The NXP LPC315x combine an 180 MHz ARM926EJ-S CPU core, High-speed USB 2.0OTG, 192 KB SRAM, NAND flash controller, flexible external bus interface, an integratedaudio codec, Li-ion charger, Real-Time Clock (RTC), and a myriad of serial and parallelinterfaces in a single chip targeted at consumer, industrial, medical, and communicationmarkets. To optimize system power consumption, the LPC315x have multiple powerdomains and a very flexible Clock Generation Unit (CGU) that provides dynamic clockgating and scaling.The LPC315x is implemented as multi-chip module with two side-by-side dies, one fordigital fuctions and one for analog functions, which include a Power Supply Unit (PSU),audio codec, RTC, and Li-ion battery charger.

標(biāo)簽： 315x LPC 315 ARM

上傳時(shí)間： 2014-01-17

上傳用戶：Altman

Proteus仿真ARM7實(shí)驗(yàn)手冊

仿真軟件 Proteus是英國Labcenter electronics公司的EDA工具軟件，Proteus已有十五年的歷史，在全球廣泛使用，除了其具有和其它EDA工具一樣的原理布圖、PCB自動或人工布線及電路仿真的功能外，其革命性的功能是，他的電路仿真是互動的，針對微處理器的應(yīng)用，可以直接在基于原理圖的虛擬原型上編程，并實(shí)現(xiàn)軟件源碼級的實(shí)時(shí)調(diào)試，如有顯示及輸出，還能看到運(yùn)行后輸入輸出的效果，配合系統(tǒng)配置的虛擬儀器如示波器、邏輯分析儀等，您不需要?jiǎng)e的，Proteus為您建立了完備的電子設(shè)計(jì)開發(fā)環(huán)境！Proteus 產(chǎn)品系列也包含了革命性的VSM技術(shù)，用戶可以對基于微控制器的設(shè)計(jì)連同所有的周圍電子器件一起仿真。Proteus可以仿真8051、ARM、AVR、PIC單片機(jī)，不愧為一款非常優(yōu)秀的嵌入式仿真軟件。簡而言之，proteus是個(gè)很好的東西，幾乎沒有他不能干的！

標(biāo)簽： Proteus ARM7 仿真 實(shí)驗(yàn)手冊

上傳時(shí)間： 2014-12-31

上傳用戶：wushengwu