凌陽科技股份有限公司保留對(duì)此文件修改之權(quán)利且不另行通知。凌陽科技股份有限公司所提供之信息相信為正確且可靠之信息，但并不保證本文件中絕無錯(cuò)誤。請(qǐng)于向凌陽科技股份有限公司提出訂單前，自行確定所使用之相關(guān)技術(shù)文件及規(guī)格為最新之版本。若因貴公司使用本公司之文件或產(chǎn)品，而涉及第三人之專利或著作權(quán)等智能財(cái)產(chǎn)權(quán)之應(yīng)用及配合時(shí)，則應(yīng)由貴公司負(fù)責(zé)取得同意及授權(quán)，本公司僅單純販?zhǔn)郛a(chǎn)品，上述關(guān)于同意及授權(quán)，非屬本公司應(yīng)為保證之責(zé)任。又未經(jīng)凌陽科技股份有限公司之正式書面許可，本公司之所有產(chǎn)品不得使用于醫(yī)療器材，維持生命系統(tǒng)及飛航等相關(guān)設(shè)備。
標(biāo)簽： Q-Writer SPMC 65 單片機(jī)
上傳時(shí)間： 2013-10-16
上傳用戶：fqscfqj
專利權(quán)盛群半導(dǎo)體公司在全球各地區(qū)已核準(zhǔn)和申請(qǐng)中之專利權(quán)至少有160件以上，享有絕對(duì)之合法權(quán)益。與盛群公司MCU或其它產(chǎn)品有關(guān)的專利權(quán)并未被同意授權(quán)使用，任何經(jīng)由不當(dāng)手段侵害盛群公司專利權(quán)之公司、組織或個(gè)人，盛群將采取一切可能的法律行動(dòng)，遏止侵權(quán)者不當(dāng)?shù)那謾?quán)行為，并追討盛群公司因侵權(quán)行為所受之損失、或侵權(quán)者所得之不法利益。 商標(biāo)權(quán)盛群之名稱和標(biāo)識(shí)、Holtek標(biāo)識(shí)、HT-IDE、HT-ICE、MarvelSpeech、MusicMicro、AdlibMicro MagicVoice、GreenDialer、PagerPro、Q-Voice、TurboVoice、EasyVoice和HandyWriter都是盛群半導(dǎo)體公司在臺(tái)灣地區(qū)和其它國(guó)家的注冊(cè)商標(biāo)。 著作權(quán)Copyright2006byHOLTEKSEMICONDUCTORINC.規(guī)格書中所出現(xiàn)的信息在出版當(dāng)時(shí)相信是正確的，然而盛群對(duì)于規(guī)格內(nèi)容的使用不負(fù)責(zé)任。文中提到的應(yīng)用其目的僅僅是用來做說明，盛群不保證或不表示這些應(yīng)用沒有更深入的修改就能適用，也不推薦它的產(chǎn)品使用在會(huì)由于故障或其它原因可能會(huì)對(duì)人身造成危害的地方。盛群產(chǎn)品不授權(quán)使用于救生、維生器件或系統(tǒng)中做為關(guān)鍵器件。
上傳時(shí)間： 2013-10-12
上傳用戶：hui626493
該系統(tǒng)以單片機(jī)為控制核心，結(jié)合雙二階環(huán)路濾波器的基本原理，使其同時(shí)具備低通、高通、帶通、帶阻濾波器的功能，利用DAC等效為可變電阻，實(shí)現(xiàn)了濾波器參數(shù)的程控。該系統(tǒng)可通過鍵盤設(shè)置濾波器的種類、截止頻率和Q值，低通、高通濾波器截止頻率以及帶通、帶阻濾波器中心頻率可預(yù)置范圍為100 Hz~50 kHz，Q值范圍為0.5~5。系統(tǒng)采用矩陣鍵盤和LCD液晶顯示，人機(jī)交互界面友好。
標(biāo)簽： 程控濾波器
上傳時(shí)間： 2013-11-29
上傳用戶：ajaxmoon
地彈的形成：芯片內(nèi)部的地和芯片外的PCB地平面之間不可避免的會(huì)有一個(gè)小電感。這個(gè)小電感正是地彈產(chǎn)生的根源，同時(shí)，地彈又是與芯片的負(fù)載情況密切相關(guān)的。下面結(jié)合圖介紹一下地彈現(xiàn)象的形成。 簡(jiǎn)單的構(gòu)造如上圖的一個(gè)小“場(chǎng)景”，芯片A為輸出芯片，芯片B為接收芯片，輸出端和輸入端很近。輸出芯片內(nèi)部的CMOS等輸入單元簡(jiǎn)單的等效為一個(gè)單刀雙擲開關(guān)，RH和RL分別為高電平輸出阻抗和低電平輸出阻抗，均設(shè)為20歐。GNDA為芯片A內(nèi)部的地。GNDPCB為芯片外PCB地平面。由于芯片內(nèi)部的地要通過芯片內(nèi)的引線和管腳才能接到GNDPCB，所以就會(huì)引入一個(gè)小電感LG，假設(shè)這個(gè)值為1nH。CR為接收端管腳電容，這個(gè)值取6pF。這個(gè)信號(hào)的頻率取200MHz。雖然這個(gè)LG和CR都是很小的值，不過，通過后面的計(jì)算我們可以看到它們對(duì)信號(hào)的影響。先假設(shè)A芯片只有一個(gè)輸出腳，現(xiàn)在Q輸出高電平，接收端的CR上積累電荷。當(dāng)Q輸出變?yōu)榈碗娖降臅r(shí)候。CR、RL、LG形成一個(gè)放電回路。自諧振周期約為490ps，頻率為2GHz，Q值約為0.0065。使用EWB建一個(gè)仿真電路。（很老的一個(gè)軟件，很多人已經(jīng)不懈于使用了。不過我個(gè)人比較依賴它，關(guān)鍵是建模，模型參數(shù)建立正確的話仿真結(jié)果還是很可靠的，這個(gè)小軟件幫我發(fā)現(xiàn)和解決過很多實(shí)際模擬電路中遇到的問題。這個(gè)軟件比較小，有比較長(zhǎng)的歷史，也比較成熟，很容易上手。建議電子初入門的同學(xué)還是熟悉一下。）因?yàn)橹魂P(guān)注下降沿，所以簡(jiǎn)單的構(gòu)建下面一個(gè)電路。起初輸出高電平，10納秒后輸出低電平。為方便起見，高電平輸出設(shè)為3.3V，低電平是0V。（實(shí)際200M以上芯片IO電壓會(huì)比較低，多采用1.5－2.5V。）
標(biāo)簽： 分
上傳時(shí)間： 2013-10-17
上傳用戶：zhishenglu
PIC系列單片機(jī)手冊(cè) 第1 章 簡(jiǎn)介 1-1簡(jiǎn)介 ................................................................................................................................................................. 1-2本手冊(cè)的宗旨 ................................................................................................................................................... 1-3器件結(jié)構(gòu) .......................................................................................................................................................... 1-4開發(fā)支持 .......................................................................................................................................................... 1-6器件種類 .......................................................................................................................................................... 1-7格式和符號(hào)的約定 ......................................................................................................................................... 1-12相關(guān)文檔 ........................................................................................................................................................ 1-14相關(guān)應(yīng)用筆記 ................................................................................................................................................. 1-17版本歷史 ........................................................................................................................................................ 1-18第2 章 振蕩器 2-1簡(jiǎn)介 ................................................................................................................................................................. 2-2振蕩器配置 ...................................................................................................................................................... 2-2晶體振蕩器 / 陶瓷諧振器 ................................................................................................................................. 2-4外部RC 振蕩器 ............................................................................................................................................. 2-124MHz 內(nèi)部 RC 振蕩器 ................................................................................................................................... 2-13休眠模式對(duì)片內(nèi)振蕩器的影響 ........................................................................................................................ 2-17器件復(fù)位對(duì)片內(nèi)振蕩器的影響 ........................................................................................................................ 2-17設(shè)計(jì)技巧 ........................................................................................................................................................ 2-18相關(guān)應(yīng)用筆記 ................................................................................................................................................. 2-19版本歷史 ........................................................................................................................................................ 2-20第3 章 復(fù)位 3-1簡(jiǎn)介 ................................................................................................................................................................. 3-2上電復(fù)位、上電延時(shí)定時(shí)器、 起振定時(shí)器、欠壓復(fù)位和奇偶校驗(yàn)錯(cuò)誤復(fù)位 ...................................................... 3-4寄存器和狀態(tài)位的值 ...................................................................................................................................... 3-10設(shè)計(jì)技巧 ........................................................................................................................................................ 3-16相關(guān)應(yīng)用筆記 ................................................................................................................................................. 3-17版本歷史 ........................................................................................................................................................ 3-18 第4 章 架構(gòu) 4-1簡(jiǎn)介 ................................................................................................................................................................. 4-2時(shí)序圖/ 指令周期 ............................................................................................................................................ 4-5指令流/ 流水線 ................................................................................................................................................ 4-6I/O 端口描述 .................................................................................................................................................... 4-7設(shè)計(jì)技巧 ........................................................................................................................................................ 4-12相關(guān)應(yīng)用筆記 ................................................................................................................................................. 4-13版本歷史 ........................................................................................................................................................ 4-14 第5 章 CPU 和ALU 5-1簡(jiǎn)介 ................................................................................................................................................................. 5-2指令的一般格式 ............................................................................................................................................... 5-4中央處理單元（CPU） .................................................................................................................................... 5-4指令時(shí)鐘 .......................................................................................................................................................... 5-4算術(shù)邏輯單元（ALU） .................................................................................................................................... 5-5狀態(tài)寄存器 ...................................................................................................................................................... 5-6OPTION_REG 寄存器 ..................................................................................................................................... 5-8電源控制寄存器 ............................................................................................................................................... 5-9設(shè)計(jì)技巧 ........................................................................................................................................................ 5-10相關(guān)應(yīng)用筆記 ................................................................................................................................................. 5-11版本歷史 ........................................................................................................................................................ 5-12第6 章 存儲(chǔ)器構(gòu)成 6-1簡(jiǎn)介 ................................................................................................................................................................. 6-2程序存儲(chǔ)器構(gòu)成 ............................................................................................................................................... 6-2數(shù)據(jù)存儲(chǔ)器構(gòu)成 ............................................................................................................................................... 6-8初始化 ........................................................................................................................................................... 6-14設(shè)計(jì)技巧 ........................................................................................................................................................ 6-16相關(guān)應(yīng)用筆記 ................................................................................................................................................. 6-17版本歷史 ........................................................................................................................................................ 6-18第7 章 數(shù)據(jù)EEPROM 7-1簡(jiǎn)介 ................................................................................................................................................................. 7-2控制寄存器 ...................................................................................................................................................... 7-3EEADR ............................................................................................................................................................ 7-4EECON1 和EECON2 寄存器 .......................................................................................................................... 7-4從EEPROM 數(shù)據(jù)存儲(chǔ)器中讀數(shù)據(jù) .................................................................................................................... 7-5向EEPROM 數(shù)據(jù)存儲(chǔ)器中寫數(shù)據(jù) .................................................................................................................... 7-5寫校驗(yàn) ............................................................................................................................................................. 7-6誤寫操作保護(hù) ................................................................................................................................................... 7-7代碼保護(hù)配置下的數(shù)據(jù)EEPROM 操作 ............................................................................................................. 7-7初始化 ............................................................................................................................................................. 7-7設(shè)計(jì)技巧 .......................................................................................................................................................... 7-8相關(guān)應(yīng)用筆記 ................................................................................................................................................... 7-9版本歷史 ........................................................................................................................................................ 7-10第8 章 中斷 8-1簡(jiǎn)介 ................................................................................................................................................................. 8-2控制寄存器 ...................................................................................................................................................... 8-5中斷響應(yīng)延時(shí) ................................................................................................................................................. 8-10INT 和外部中斷 .............................................................................................................................................. 8-10中斷的現(xiàn)場(chǎng)保護(hù) ............................................................................................................................................. 8-11初始化 ........................................................................................................................................................... 8-14設(shè)計(jì)技巧 ........................................................................................................................................................ 8-16相關(guān)應(yīng)用筆記 ................................................................................................................................................. 8-17版本歷史 ........................................................................................................................................................ 8-18第9 章 I/O 端口 9-1簡(jiǎn)介 ................................................................................................................................................................. 9-2PORTA 和TRISA 寄存器 ................................................................................................................................ 9-4PORTB 和TRISB 寄存器 ................................................................................................................................ 9-6PORTC 和TRISC 寄存器 ................................................................................................................................ 9-8PORTD 和TRISD 寄存器 ................................................................................................................................ 9-9PORTE 和TRISE 寄存器 ............................................................................................................................... 9-10PORTF 和 TRISF 寄存器 ............................................................................................................................... 9-11PORTG 和TRISG 寄存器 .............................................................................................................................. 9-12GPIO 和TRISGP 寄存器 ............................................................................................................................... 9-13I/O 編程注意事項(xiàng) ........................................................................................................................................... 9-14初始化 ........................................................................................................................................................... 9-16設(shè)計(jì)技巧 ........................................................................................................................................................ 9-17相關(guān)應(yīng)用筆記 ................................................................................................................................................. 9-19版本歷史 ........................................................................................................................................................ 9-20第10 章 并行從動(dòng)端口 10-1簡(jiǎn)介 ............................................................................................................................................................... 10-2控制寄存器 .................................................................................................................................................... 10-3操作 ............................................................................................................................................................... 10-4休眠模式下的操作 ......................................................................................................................................... 10-5復(fù)位的影響 .................................................................................................................................................... 10-5PSP 波形 ....................................................................................................................................................... 10-5設(shè)計(jì)技巧 ........................................................................................................................................................ 10-6相關(guān)應(yīng)用筆記 ................................................................................................................................................. 10-7版本歷史 ........................................................................................................................................................ 10-8 第11 章 TIMER0 11-1簡(jiǎn)介 ............................................................................................................................................................... 11-2控制寄存器 .................................................................................................................................................... 11-3操作 ............................................................................................................................................................... 11-4TMR0 中斷 .................................................................................................................................................... 11-5Timer0 外部時(shí)鐘的使用 ................................................................................................................................. 11-6TMR0 的預(yù)分頻器 ......................................................................................................................................... 11-7設(shè)計(jì)技巧 ...................................................................................................................................................... 11-10相關(guān)應(yīng)用筆記 ............................................................................................................................................... 11-11版本歷史 ...................................................................................................................................................... 11-12第12 章 TIMER1 12-1簡(jiǎn)介 ............................................................................................................................................................... 12-2控制寄存器 .................................................................................................................................................... 12-3Timer1 工作在定時(shí)器模式 ..............................................................................................................................12-4Timer1 工作在同步計(jì)數(shù)器模式 ....................................................................................................................... 12-4Timer1 工作在異步計(jì)數(shù)器模式 ....................................................................................................................... 12-5Timer1 振蕩器 ............................................................................................................................................... 12-7休眠操作 ........................................................................................................................................................ 12-9用CCP 觸發(fā)器的輸出將Timer1 復(fù)位 ............................................................................................................. 12-9Timer1 寄存器（TMR1H:TMR1L）的復(fù)位 .................................................................................................... 12-9Timer1 預(yù)分頻器 ............................................................................................................................................ 12-9初始化 ......................................................................................................................................................... 12-10設(shè)計(jì)技巧 ...................................................................................................................................................... 12-12相關(guān)應(yīng)用筆記 ............................................................................................................................................... 12-13版本歷史 ...................................................................................................................................................... 12-14第13 章 TIMER2 13-1簡(jiǎn)介 ............................................................................................................................................................... 13-2控制寄存器 .................................................................................................................................................... 13-3定時(shí)器時(shí)鐘源 ................................................................................................................................................. 13-4定時(shí)器TMR2 和PR2 周期寄存器 .................................................................................................................. 13-4TMR2 匹配輸出 ............................................................................................................................................. 13-4將Timer2 的預(yù)分頻器和后分頻器清零 ........................................................................................................... 13-4休眠操作 ........................................................................................................................................................ 13-4初始化 ........................................................................................................................................................... 13-5設(shè)計(jì)技巧 ........................................................................................................................................................ 13-6相關(guān)應(yīng)用筆記 ................................................................................................................................................. 13-7版本歷史 ........................................................................................................................................................ 13-8第14 章 比較/ 捕捉/ 脈寬調(diào)制(CCP) 14-1簡(jiǎn)介 ............................................................................................................................................................... 14-2控制寄存器 .................................................................................................................................................... 14-3捕捉模式 ........................................................................................................................................................ 14-4比較模式 ........................................................................................................................................................ 14-6PWM 模式 ..................................................................................................................................................... 14-8初始化 ......................................................................................................................................................... 14-12設(shè)計(jì)技巧 ...................................................................................................................................................... 14-15相關(guān)應(yīng)用筆記 ............................................................................................................................................... 14-17版本歷史 ...................................................................................................................................................... 14-18第15 章 同步串行口（SSP） 15-1簡(jiǎn)介 ............................................................................................................................................................... 15-2控制寄存器 .................................................................................................................................................... 15-3SPITM 模式 .................................................................................................................................................... 15-6SSP 模塊的I2CTM 操作 ............................................................................................................................... 15-16初始化 ......................................................................................................................................................... 15-26設(shè)計(jì)技巧 ...................................................................................................................................................... 15-28相關(guān)應(yīng)用筆記 ............................................................................................................................................... 15-29版本歷史 ...................................................................................................................................................... 15-30第16 章 基本同步串行口（BSSP） 16-1簡(jiǎn)介 ............................................................................................................................................................... 16-2控制寄存器 .................................................................................................................................................... 16-3SPITM 模式 .................................................................................................................................................... 16-6SSP 模塊 的I2CTM 操作 ............................................................................................................................... 16-15初始化 ......................................................................................................................................................... 16-23設(shè)計(jì)技巧 ...................................................................................................................................................... 16-24相關(guān)應(yīng)用筆記 ............................................................................................................................................... 16-25版本歷史 ...................................................................................................................................................... 16-26第17 章 主同步串行口（MSSP） 17-1簡(jiǎn)介 ............................................................................................................................................................... 17-2控制寄存器 .................................................................................................................................................... 17-4SPITM 模式 .................................................................................................................................................... 17-9SSP 模塊的 I2C™ 操作 ............................................................................................................................... 17-18I2CTM 總線的連接注意事項(xiàng) ........................................................................................................................... 17-56初始化 ......................................................................................................................................................... 17-57設(shè)計(jì)技巧 ...................................................................................................................................................... 17-58相關(guān)應(yīng)用筆記 ............................................................................................................................................... 17-59版本歷史 ...................................................................................................................................................... 17-60第18 章 USART 18-1簡(jiǎn)介 ............................................................................................................................................................... 18-2控制寄存器 .................................................................................................................................................... 18-3USART 波特率發(fā)生器（BRG） ..................................................................................................................... 18-5USART 異步工作模式 ................................................................................................................................... 18-8USART 同步主控模式 .................................................................................................................................. 18-15USART 同步從動(dòng)模式 ................................................................................................................................. 18-19初始化 ......................................................................................................................................................... 18-21設(shè)計(jì)技巧 ...................................................................................................................................................... 18-22相關(guān)應(yīng)用筆記 ............................................................................................................................................... 18-23版本歷史 ...................................................................................................................................................... 18-24第19 章 參考電壓模塊 19-1簡(jiǎn)介 ............................................................................................................................................................... 19-2控制寄存器 .................................................................................................................................................... 19-3配置參考電壓 ................................................................................................................................................. 19-4參考電壓精度 ................................................................................................................................................. 19-5休眠模式下的操作 ......................................................................................................................................... 19-5復(fù)位的影響 .................................................................................................................................................... 19-5連接注意事項(xiàng) ................................................................................................................................................. 19-6初始化 ........................................................................................................................................................... 19-7設(shè)計(jì)技巧 ........................................................................................................................................................ 19-8相關(guān)應(yīng)用筆記 ................................................................................................................................................. 19-9版本歷史 ...................................................................................................................................................... 19-10第20 章 比較器 20-1簡(jiǎn)介 ............................................................................................................................................................... 20-2控制寄存器 .................................................................................................................................................... 20-3設(shè)置比較器模式 ............................................................................................................................................. 20-4比較器工作原理 ............................................................................................................................................. 20-6比較器參考源 ................................................................................................................................................. 20-6比較器的響應(yīng)時(shí)間 ......................................................................................................................................... 20-8比較器輸出 .................................................................................................................................................... 20-8比較器中斷 .................................................................................................................................................... 20-9休眠狀態(tài)下比較器的操作 ............................................................................................................................... 20-9復(fù)位的影響 .................................................................................................................................................... 20-9模擬輸入連接方式注意事項(xiàng) .......................................................................................................................... 20-10初始化 ......................................................................................................................................................... 20-11設(shè)計(jì)技巧 ...................................................................................................................................................... 20-12相關(guān)應(yīng)用筆記 ............................................................................................................................................... 20-13版本歷史 ...................................................................................................................................................... 20-14第21 章 8 位A/D 轉(zhuǎn)換器 21-1簡(jiǎn)介 ............................................................................................................................................................... 21-2控制寄存器 .................................................................................................................................................... 21-3操作 ............................................................................................................................................................... 21-5A/D 采集時(shí)間要求 .......................................................................................................................................... 21-6A/D 轉(zhuǎn)換時(shí)鐘的選擇 ...................................................................................................................................... 21-8配置模擬輸入端口 ......................................................................................................................................... 21-9A/D 轉(zhuǎn)換 ...................................................................................................................................................... 21-10休眠期間的A/D 轉(zhuǎn)換 ................................................................................................................................... 21-12A/D 精度/ 誤差 ............................................................................................................................................ 21-13復(fù)位對(duì)A/D 轉(zhuǎn)換的影響 ................................................................................................................................ 21-13CCP 觸發(fā)器的使用 ...................................................................................................................................... 21-14連接注意事項(xiàng) ............................................................................................................................................... 21-14傳遞函數(shù) ...................................................................................................................................................... 21-14初始化 ......................................................................................................................................................... 21-15設(shè)計(jì)技巧 ...................................................................................................................................................... 21-16相關(guān)應(yīng)用筆記 ............................................................................................................................................... 21-17版本歷史 ...................................................................................................................................................... 21-18第22 章 基本型8 位A/D 轉(zhuǎn)換器 22-1簡(jiǎn)介 ............................................................................................................................................................... 22-2控制寄存器 .................................................................................................................................................... 22-3A/D 采集時(shí)間要求 .......................................................................................................................................... 22-6A/D 轉(zhuǎn)換時(shí)鐘的選擇 ...................................................................................................................................... 22-8配置模擬輸入端口 ....................................................................................................................................... 22-10A/D 轉(zhuǎn)換 ...................................................................................................................................................... 22-11休眠期間的A/D 轉(zhuǎn)換 ................................................................................................................................... 22-14A/D 轉(zhuǎn)換精度/ 誤差 ..................................................................................................................................... 22-15復(fù)位對(duì)A/D 轉(zhuǎn)換的影響 ................................................................................................................................ 22-16連接時(shí)的考慮事項(xiàng) ....................................................................................................................................... 22-16傳遞函數(shù) ...................................................................................................................................................... 22-16初始化 ......................................................................................................................................................... 22-17設(shè)計(jì)技巧 ...................................................................................................................................................... 22-18相關(guān)應(yīng)用筆記 ............................................................................................................................................... 22-19版本歷史 ...................................................................................................................................................... 22-20第23 章 10 位A/D 轉(zhuǎn)換器 23-1簡(jiǎn)介 ............................................................................................................................................................... 23-2控制寄存器 .................................................................................................................................................... 23-3操作 ............................................................................................................................................................... 23-5A/D 采集時(shí)間要求 .......................................................................................................................................... 23-6A/D 轉(zhuǎn)換時(shí)鐘的選擇 ...................................................................................................................................... 23-8模擬輸入引腳的設(shè)置 ...................................................................................................................................... 23-9A/D 轉(zhuǎn)換的編程舉例 .................................................................................................................................... 23-10休眠期間的A/D 轉(zhuǎn)換 ................................................................................................................................... 23-14復(fù)位對(duì)A/D 轉(zhuǎn)換的影響 ................................................................................................................................ 23-14A/D 轉(zhuǎn)換精度與誤差 .................................................................................................................................... 23-15連接時(shí)的考慮事項(xiàng) ....................................................................................................................................... 23-16傳遞函數(shù) ...................................................................................................................................................... 23-16初始化 ......................................................................................................................................................... 23-17設(shè)計(jì)技巧 ...................................................................................................................................................... 23-18相關(guān)應(yīng)用筆記 ............................................................................................................................................... 23-19版本歷史 ...................................................................................................................................................... 23-20第24 章 積分型A/D 轉(zhuǎn)換器 24-1簡(jiǎn)介 ............................................................................................................................................................... 24-2控制寄存器 .................................................................................................................................................... 24-3轉(zhuǎn)換過程 ........................................................................................................................................................ 24-6其它模擬模塊 ............................................................................................................................................... 24-12校準(zhǔn)參數(shù) ...................................................................................................................................................... 24-13設(shè)計(jì)技巧 ...................................................................................................................................................... 24-14相關(guān)應(yīng)用筆記 ............................................................................................................................................... 24-15版本歷史 ...................................................................................................................................................... 24-16第25 章 LCD 25-1簡(jiǎn)介 ............................................................................................................................................................... 25-2控制寄存器 .................................................................................................................................................... 25-3LCD 定時(shí) ....................................................................................................................................................... 25-6LCD 中斷 ..................................................................................................................................................... 25-12像素控制 ...................................................................................................................................................... 25-13電壓發(fā)生器 .................................................................................................................................................. 25-15休眠模式下的操作 ....................................................................................................................................... 25-16復(fù)位的影響 .................................................................................................................................................. 25-17LCD 模塊的設(shè)置 .......................................................................................................................................... 25-17判別比 ......................................................................................................................................................... 25-18LCD 電壓發(fā)生器 .......................................................................................................................................... 25-20對(duì)比度 ......................................................................................................................................................... 25-22LCD 玻璃基板 .............................................................................................................................................. 25-22初始化 ......................................................................................................................................................... 25-23設(shè)計(jì)技巧 ...................................................................................................................................................... 25-24相關(guān)應(yīng)用筆記 ............................................................................................................................................... 25-25版本歷史 ...................................................................................................................................................... 25-26第26 章 看門狗定時(shí)器與休眠模式 26-1簡(jiǎn)介 ............................................................................................................................................................... 26-2控制寄存器 .................................................................................................................................................... 26-3看門狗定時(shí)器（WDT）的操作 ....................................................................................................................... 26-4休眠省電模式 ................................................................................................................................................. 26-7初始化 ........................................................................................................................................................... 26-9設(shè)計(jì)技巧 ...................................................................................................................................................... 26-10相關(guān)應(yīng)用筆記 ............................................................................................................................................... 26-11版本歷史 ...................................................................................................................................................... 26-12第27 章 器件配置位 27-1簡(jiǎn)介 ............................................................................................................................................................... 27-2配置字位 ........................................................................................................................................................ 27-4編程校驗(yàn)/ 代碼保護(hù) ....................................................................................................................................... 27-8識(shí)別碼ID 的位置 ........................................................................................................................................... 27-9設(shè)計(jì)技巧 ...................................................................................................................................................... 27-10相關(guān)應(yīng)用筆記 ............................................................................................................................................... 27-11版本歷史 ...................................................................................................................................................... 27-12第28 章 在線串行編程 28-1簡(jiǎn)介 ............................................................................................................................................................... 28-2進(jìn)入在線串行編程模式 .................................................................................................................................. 28-3應(yīng)用電路 ........................................................................................................................................................ 28-4編程器 ........................................................................................................................................................... 28-6編程環(huán)境 ........................................................................................................................................................ 28-6其它優(yōu)點(diǎn) ........................................................................................................................................................ 28-7PICmicro® OTP 型單片機(jī)的現(xiàn)場(chǎng)編程 ............................................................................................................. 28-8FLASH 型 PICmicro® 單片機(jī)的現(xiàn)場(chǎng)編程 ...................................................................................................... 28-10設(shè)計(jì)技巧 ...................................................................................................................................................... 28-12相關(guān)應(yīng)用筆記 ............................................................................................................................................... 28-13版本歷史 ...................................................................................................................................................... 28-14第29 章 指令集 29-1簡(jiǎn)介 ............................................................................................................................................................... 29-2指令格式 ........................................................................................................................................................ 29-4作為源/ 目標(biāo)寄存器的特殊功能寄存器 ........................................................................................................... 29-6Q 周期操作 .................................................................................................................................................... 29-7指令描述 ........................................................................................................................................................ 29-8設(shè)計(jì)技巧 ...................................................................................................................................................... 29-45相關(guān)應(yīng)用筆記 ............................................................................................................................................... 29-47版本歷史 ...................................................................................................................................................... 29-48第30 章 電氣規(guī)范 30-1簡(jiǎn)介 ............................................................................................................................................................... 30-2絕對(duì)最大值 .................................................................................................................................................... 30-3器件選型表 .................................................................................................................................................... 30-4器件電壓規(guī)范 ................................................................................................................................................. 30-5器件電流特性 ................................................................................................................................................. 30-6輸入閾值電平 ................................................................................................................................................. 30-9I/O 電流特性 ................................................................................................................................................ 30-10輸出驅(qū)動(dòng)電壓 ............................................................................................................................................... 30-11I/O 引腳的容性負(fù)載 ..................................................................................................................................... 30-12數(shù)據(jù)EEPROM / 閃存 .................................................................................................................................. 30-13LCD ............................................................................................................................................................. 30-14比較器和參考電壓 ....................................................................................................................................... 30-15時(shí)序參數(shù)符號(hào) ............................................................................................................................................... 30-16外部時(shí)鐘時(shí)序波形圖和時(shí)序要求示例 ............................................................................................................ 30-17上電和復(fù)位時(shí)序波形圖及要求示例 ............................................................................................................... 30-19定時(shí)器Timer0 和Timer1 時(shí)序波形圖及要求示例 ......................................................................................... 30-20CCP 的時(shí)序圖及要求 ................................................................................................................................... 30-21并行從動(dòng)端口 (PSP) 時(shí)序圖及要求 .............................................................................................................. 30-22SSP 和 MSSP SPITM 模式時(shí)序波形圖及要求示例 ....................................................................................... 30-23SSP I2CTM 模式時(shí)序波形圖及要求示例 ........................................................................................................ 30-27MSSP I2CTM 模式時(shí)序波形圖及要求示例 ..................................................................................................... 30-30USART/SCI 時(shí)序波形圖及要求示例 ............................................................................................................. 30-328 位 A/D 時(shí)序波形圖及要求示例 ................................................................................................................... 30-3410 位A/D 時(shí)序波形圖及要求示例 ................................................................................................................. 30-36積分型A/D 時(shí)序波形圖及要求示例 ............................................................................................................... 30-38LCD 時(shí)序波形圖及要求示例 ......................................................................................................................... 30-40相關(guān)應(yīng)用筆記 ............................................................................................................................................... 30-41版本歷史 ...................................................................................................................................................... 30-42第31 章 器件特性 31-1簡(jiǎn)介 ............................................................................................................................................................... 31-2特性和電氣規(guī)范 ............................................................................................................................................. 31-2DC 和AC 特性圖表 ....................................................................................................................................... 31-2版本歷史 ...................................................................................................................................................... 31-22第32 章 開發(fā)工具 32-1簡(jiǎn)介 ............................................................................................................................................................... 32-2集成開發(fā)環(huán)境（IDE） ................................................................................................................................... 32-3MPLAB® 軟件語言支持 ................................................................................................................................. 32-6MPLAB® SIM 軟件模擬器 ............................................................................................................................... 32-8MPLAB® 硬件仿真器支持 ............................................................................................................................... 32-9MPLAB® 編程器支持 ................................................................................................................................... 32-10輔助工具 ...................................................................................................................................................... 32-11開發(fā)板 ......................................................................................................................................................... 32-12針對(duì)其它Microchip 產(chǎn)品的開發(fā)工具 ............................................................................................................ 32-14相關(guān)應(yīng)用筆記 ............................................................................................................................................... 32-15版本歷史 ...................................................................................................................................................... 32-16第33 章 代碼開發(fā) 33-1版本歷史 ........................................................................................................................................................ 33-2第34 章 附錄 34-1I2CTM 概述...................................................................................................................................................... 34-2LCD 玻璃基板生產(chǎn)商.................................................................................................................................... 34-11改進(jìn)的器件特性............................................................................................................................................ 34-13版本歷史....................................................................................................................................................... 34-19第35 章 術(shù)語表 35-1版本歷史 ...................................................................................................................................................... 35-14目錄
上傳時(shí)間： 2013-11-15
上傳用戶：nanshan
load initial_track s; % y:initial data,s:data with noiseT=0.1; % yp denotes the sample value of position% yv denotes the sample value of velocity% Y=[yp(n);yv(n)];% error deviation caused by the random acceleration % known dataY=zeros(2,200);Y0=[0;1];Y(:,1)=Y0;A=[1 T 0 1]; B=[1/2*(T)^2 T]';H=[1 0]; C0=[0 0 0 1];C=[C0 zeros(2,2*199)];Q=(0.25)^2; R=(0.25)^2;
上傳時(shí)間： 2014-12-28
上傳用戶：asaqq
頻譜分析儀的主要工作原理 接收到的中頻模擬信號(hào)經(jīng)過A/D轉(zhuǎn)換為14位的數(shù)字信 號(hào)，首先對(duì)數(shù)字信號(hào)進(jìn)行數(shù)字下變頻（DDC），得到I路、Q路信號(hào)，然后根據(jù)控制信號(hào)對(duì)I路、Q路信號(hào)進(jìn)行抽取濾波，使用CIC抽取濾波器完成，然后在分 別對(duì)I路、Q路信號(hào)分別進(jìn)行低通濾波，濾波器采用FIR濾波器和半帶濾波器相結(jié)合的方式，然后對(duì)信號(hào)進(jìn)行加窗、FFT（對(duì)頻譜進(jìn)行分析時(shí)進(jìn)行FFT運(yùn)算， 對(duì)功率譜進(jìn)行分析時(shí)不進(jìn)行FFT運(yùn)算）、I路和Q路平方求和、求平均。最后將輸出的數(shù)據(jù)送入到DSP中進(jìn)行顯示與控制的后續(xù)處理。
標(biāo)簽： Xilinx FPGA 多分辨率 頻譜分析儀
上傳時(shí)間： 2013-10-19
上傳用戶：幾何公差
利用系介質(zhì)陶瓷材料研制的微波元器件，廣泛應(yīng)用于航空航天、軍事及民用通信及電子設(shè)備中，在理論分析和工藝試驗(yàn)的基礎(chǔ)上，通過對(duì)介質(zhì)陶瓷材料組分和控制溫度工藝研究，優(yōu)化BaO-Nd2O3-TiO2組分材料，改進(jìn)煅燒溫度等工藝方法，研制出性能穩(wěn)定性介質(zhì)陶瓷材料。為研制用于高頻、超高頻電子設(shè)備中性能穩(wěn)定微波元器件找到了有效的途徑。
標(biāo)簽： Ba-Nd-Ti 微波介質(zhì) Q值 陶瓷
上傳時(shí)間： 2013-11-05
上傳用戶：kangqiaoyibie
作為新興的通信技術(shù)，磁感應(yīng)通信能在很多特殊環(huán)境中替代電磁波通信，比如在地下、水中、海岸附近和洞穴中。信道的容量是通信系統(tǒng)的一個(gè)重要技術(shù)指標(biāo)。首先分析了磁感應(yīng)通信系統(tǒng)的傳輸功率比，通過對(duì)其路徑損耗的分析，估算出了3 dB帶寬，然后計(jì)算出了其信道容量。同時(shí)分析了能夠影響遠(yuǎn)距離信道容量的一些關(guān)鍵因素。研究結(jié)果發(fā)現(xiàn)，線圈的半徑和Q值越大，遠(yuǎn)距離的信道容量就越大。
上傳時(shí)間： 2013-11-11
上傳用戶：181992417
射頻識(shí)別 (RFID) 技術(shù)采用輻射和反射 RF 功率來識(shí)別和跟蹤各種目標(biāo)。典型的 RFID 繫統(tǒng)由一個(gè)閱讀器和一個(gè)轉(zhuǎn)發(fā)器 (或標(biāo)簽) 組成。
上傳時(shí)間： 2013-11-17
上傳用戶：huyanju
蟲蟲下載站版權(quán)所有 京ICP備2021023401號(hào)-1
