本應(yīng)用筆記的目的是說(shuō)明如何配置和使用端口 I/O 交叉開關(guān)譯碼器
標(biāo)簽： C8051F MCU 端口 交叉開關(guān) 譯碼器
上傳時(shí)間： 2017-11-06
上傳用戶：szcyclone
I/O并行口直接驅(qū)動(dòng)LED顯示1. 實(shí)驗(yàn)任務(wù) 如圖13所示，利用AT89S51單片機(jī)的P0端口的P0.0－P0.7連接到一個(gè)共陰數(shù)碼管的a－h(huán)的筆段上，數(shù)碼管的公共端接地。在數(shù)碼
標(biāo)簽： LED 并行口 直接驅(qū)動(dòng) 電路圖
上傳時(shí)間： 2013-06-15
上傳用戶：kytqcool
Recent advances in low voltage silicon germaniumand BiCMOS processes have allowed the design andproduction of very high speed amplifi ers. Because theprocesses are low voltage, most of the amplifi er designshave incorporated differential inputs and outputs to regainand maximize total output signal swing. Since many lowvoltageapplications are single-ended, the questions arise,“How can I use a differential I/O amplifi er in a single-endedapplication?” and “What are the implications of suchuse?” This Design Note addresses some of the practicalimplications and demonstrates specifi c single-endedapplications using the 3GHz gain-bandwidth LTC6406differential I/O amplifi er.
標(biāo)簽： 單端應(yīng)用 差分 放大器
上傳時(shí)間： 2013-11-23
上傳用戶：rocketrevenge
I/O 型單片機(jī)使用手冊(cè) 目錄 間接尋址寄存器 – IAR, IAR0, IAR1 .............................................35間接尋址指針 – MP, MP0, MP1 ......................................................35存儲(chǔ)區(qū)指針 – BP .........................................................................36累加器 – ACC...................................................................................37程序計(jì)數(shù)器低字節(jié)寄存器 – PCL....................................................37表格寄存器 – TBLP,TBHP,TBLH....................................................37看門狗定時(shí)寄存器 – WDTS............................................................38狀態(tài)寄存器 – STATUS.....................................................................38中斷控制寄存器 – INTC,INTC0,INTC1 .........................................39定時(shí)/計(jì)數(shù)寄存器...............................................................................39輸入/輸出端口和控制寄存器...........................................................40UART 寄存器 .USR,UCR1,UCR2,TXR/RXR,BRG.......................40輸入/輸出端口..........................................................................................41上拉電阻............................................................................................41PA 口的喚醒......................................................................................41輸入/輸出端口控制寄存器...............................................................41引腳共享功能....................................................................................42編程注意事項(xiàng)....................................................................................45定時(shí)/計(jì)數(shù)器..............................................................................................46配置定時(shí)/計(jì)數(shù)器輸入時(shí)鐘源...........................................................47定時(shí)/計(jì)數(shù)寄存器 – TMR, TMR0,TMR0L/TMR0H,TMR1L/TMR1H,TMR2.....................................................................49定時(shí)/計(jì)數(shù)控制寄存器 – TMRC,TMR0C,TMR1C,TMR2C............50定時(shí)器模式........................................................................................53事件計(jì)數(shù)器模式................................................................................53脈沖寬度測(cè)量模式............................................................................54可編程分頻器(PFD)和蜂鳴器的應(yīng)用..............................................55預(yù)分頻器(Prescaler)...........................................................................56輸入/輸出接口...................................................................................56編程注意事項(xiàng)....................................................................................57定時(shí)/計(jì)數(shù)器應(yīng)用范例.......................................................................57中斷............................................................................................................59中斷寄存器........................................................................................59中斷優(yōu)先權(quán)........................................................................................62外部中斷............................................................................................63定時(shí)/計(jì)數(shù)器中斷...............................................................................64UART 中斷........................................................................................64編程注意事項(xiàng)....................................................................................65復(fù)位和初始化............................................................................................66復(fù)位....................................................................................................66目錄iii異步串行口——UART............................................................................74UART 特性..........................................................................................74UART 外部引腳..................................................................................74數(shù)據(jù)發(fā)送.............................................................................................75UART 狀態(tài)控制寄存器......................................................................75波特率發(fā)生器.....................................................................................79UART 設(shè)置與控制..............................................................................81UART 發(fā)送器......................................................................................83UART 接收器......................................................................................84接收錯(cuò)誤處理.....................................................................................85接收中斷圖解.....................................................................................86地址檢測(cè)模式.....................................................................................86暫停模式下的UART 功能.................................................................87UART 應(yīng)用范例.................................................................................87振蕩器........................................................................................................89系統(tǒng)時(shí)鐘配置....................................................................................89系統(tǒng)晶體/陶瓷振蕩器.......................................................................89系統(tǒng)電阻電容振蕩器........................................................................90內(nèi)部系統(tǒng)電阻電容振蕩器................................................................90RTC 振蕩器........................................................................................91看門狗定時(shí)振蕩器............................................................................91暫停和喚醒................................................................................................92暫停.....................................................................................................92進(jìn)入暫停.............................................................................................92靜態(tài)電流.............................................................................................92喚醒....................................................................................................92看門狗定時(shí)器............................................................................................94掩膜選項(xiàng)....................................................................................................96應(yīng)用電路....................................................................................................97第二部份 程序語(yǔ)言.....................................................................99第二章 指令集介紹.................................................................................101指令集......................................................................................................101指令周期..........................................................................................101數(shù)據(jù)的傳送......................................................................................101算術(shù)運(yùn)算..........................................................................................102邏輯和移位運(yùn)算..............................................................................102分支和控制的轉(zhuǎn)換..........................................................................102位運(yùn)算..............................................................................................102查表運(yùn)算..........................................................................................103其它運(yùn)算..........................................................................................103指令設(shè)定一覽表......................................................................................104慣例..................................................................................................104I/O 型單片機(jī)使用手冊(cè)iv第三章 指令定義.....................................................................................107第四章 匯編語(yǔ)言和編譯器.....................................................................121常用符號(hào)..................................................................................................121語(yǔ)句語(yǔ)法..................................................................................................122名稱..................................................................................................122操作項(xiàng)..............................................................................................122操作數(shù)項(xiàng)..........................................................................................122注解..................................................................................................122編譯偽指令..............................................................................................123條件編譯偽指令..............................................................................123文件控制偽指令..............................................................................124程序偽指令......................................................................................126數(shù)據(jù)定義偽指令..............................................................................130宏指令..............................................................................................132匯編語(yǔ)言指令..........................................................................................136名稱..................................................................................................136助記符..............................................................................................136操作數(shù)、運(yùn)算子和表達(dá)式..............................................................136其它..........................................................................................................139前置引用..........................................................................................139局部標(biāo)號(hào)..........................................................................................139匯編語(yǔ)言保留字..............................................................................140編譯器選項(xiàng)..............................................................................................141編譯列表文件格式..................................................................................141源程序列表......................................................................................141編譯總結(jié)..........................................................................................142其它..................................................................................................142第三部份 開發(fā)工具................................................................... 145第五章 單片機(jī)開發(fā)工具.........................................................................147HT-IDE 集成開發(fā)環(huán)境............................................................................147盛群?jiǎn)纹瑱C(jī)仿真器(HT-ICE) ..................................................................149HT-ICE 接口卡.................................................................................149OTP 燒寫器.....................................................................................149OTP 適配卡.....................................................................................149系統(tǒng)配置..................................................................................................150HT-ICE 接口卡設(shè)置........................................................................151安裝..........................................................................................................153系統(tǒng)要求..........................................................................................153硬件安裝..........................................................................................153軟件安裝..........................................................................................154目錄v第六章 快速開始.....................................................................................159步驟一：建立一個(gè)新項(xiàng)目..............................................................159步驟二：將源程序文件加到項(xiàng)目中..............................................159步驟三：編譯項(xiàng)目..........................................................................159步驟四：燒寫OTP 單片機(jī).............................................................160步驟五：傳送程序與掩膜選項(xiàng)單至Holtek ..................................160附錄............................................................................................... 161附錄A 特性曲線圖...................................................................................163附錄B 封裝信息.......................................................................................173
上傳時(shí)間： 2013-10-18
上傳用戶：blacklee
設(shè)計(jì)一個(gè)四路數(shù)據(jù)選擇器,其功能是將四組不同的數(shù)據(jù)按要求選擇一個(gè)輸出.輸出的那組數(shù)據(jù)有兩個(gè)控制信號(hào)決定,其真值表如下: 數(shù)據(jù)選擇控制端 輸出的數(shù)據(jù) Input0 Input1 output 0 0 output0 0 1 output1 1 0 output 2 1 1 output 3
標(biāo)簽： Input0 Input1 output 數(shù)據(jù)
上傳時(shí)間： 2015-01-08
上傳用戶：6546544
應(yīng)用平臺(tái) SCO OpenServer 5 編譯命令 cc -o fget fget.c -lcurses 此程序適用于SCO UNIX主機(jī)系統(tǒng)，客戶端為任意平臺(tái). 以Windows客戶為例,以下簡(jiǎn)要說(shuō)明其使用方法. 1、直接撥號(hào)方式 先進(jìn)入Windows的終端仿真器, 使用ATDT命令向UNIX主機(jī)撥號(hào),當(dāng)主機(jī)連通時(shí), 運(yùn)行主機(jī)的FGET程序,格式為 FGET 下載文件名.然后,從終端仿真器的傳輸" 菜單選接收二進(jìn)制文件選項(xiàng),輸入本地文件名后,即可接收文件. 2、internet連接方式 先將FGET文件在主機(jī)上編譯通過(guò)， 然后用Netterm之類的telnet 軟件連接到主機(jī)上，當(dāng)主機(jī)連通時(shí),運(yùn)行主機(jī)的FGET程序,格式為 FGET 下載文件名. 然后從菜單選接收文件選項(xiàng),輸入本地文件名后,即可接收文件.
標(biāo)簽： fget OpenServer SCO lcurses
上傳時(shí)間： 2015-02-11
上傳用戶：shus521
動(dòng)態(tài)掃描顯示接口 動(dòng)態(tài)掃描顯示接口是單片機(jī)中應(yīng)用最為廣泛的一種顯示方式之一。其接口電路是把所有顯示器的8個(gè)筆劃段a-h同名端連在一起，而每一個(gè)顯示器的公共極COM是各自獨(dú)立地受I/O線控制。CPU向字段輸出口送出字形碼時(shí)，所有顯示器接收到相同的字形碼，但究竟是那個(gè)顯示器亮，則取決于COM端，而這一端是由I/O控制的，所以我們就可以自行決定何時(shí)顯示哪一位了。而所謂動(dòng)態(tài)掃描就是指我們采用分時(shí)的方法，輪流控制各個(gè)顯示器的COM端，使各個(gè)顯示器輪流點(diǎn)亮。
標(biāo)簽： a-h 動(dòng)態(tài)掃描 顯示接口 單片機(jī)
上傳時(shí)間： 2015-06-03
上傳用戶：磊子226
J2ME核心類及MIDlet類 MIDP用戶界面對(duì)象 圖形處理及低級(jí)事件處理 多線程編程 I/O及網(wǎng)絡(luò)編程 數(shù)據(jù)庫(kù)RMS編程 浮點(diǎn)數(shù)編程 多媒體及GAME API編程 安全、加密及代碼優(yōu)化 擴(kuò)展類庫(kù)及供應(yīng)商提供的API 與服務(wù)端聯(lián)合搭建移動(dòng)應(yīng)用 XML 及Web Service編程 短信編程 各種移動(dòng)平臺(tái)的應(yīng)用開發(fā)
標(biāo)簽： MIDlet J2ME GAME MIDP
上傳時(shí)間： 2015-06-08
上傳用戶：wangyi39
SH601.C 單片機(jī)間的RS232串行通信程序 SH602.C 單片機(jī)和PC之間的串行通信程序 SH603.A51 用51單片機(jī)的I/O口模擬串口的例程 SH604.C 單片機(jī)的無(wú)線數(shù)據(jù)傳輸例程 SH605.A51 使用單片機(jī)實(shí)現(xiàn)I2C串行通信的例程 SH606.A51 使用單片機(jī)實(shí)現(xiàn)的紅外數(shù)據(jù)傳輸 SH607.C 雙端口RAM方式的數(shù)據(jù)通信例程 608 介紹電平轉(zhuǎn)換芯片MAX485的使用方法和接口電路。
上傳時(shí)間： 2015-08-17
上傳用戶：hj_18
編譯命令 cc -o fget fget.c -lcurses 此程序適用于SCO UNIX主機(jī)系統(tǒng)，客戶端為任意平臺(tái)。 以Windows客戶為例，以下簡(jiǎn)要說(shuō)明其使用方法。 1、直接撥號(hào)方式 先進(jìn)入Windows的終端仿真器， 使用ATDT命令向UNIX主機(jī)撥號(hào)，當(dāng)主機(jī)連通時(shí)， 運(yùn)行主機(jī)的FGET程序，格式為 FGET 下載文件名。然后，從終端仿真器的"傳輸"菜單選"接收二進(jìn)制文件"選項(xiàng)，輸入本地文件名后，即可接收文件。 2、internet連接方式 先將FGET文件在主機(jī)上編譯通過(guò)， 然后用Netterm之類的telnet軟件連接到主機(jī)上，當(dāng)主機(jī)連通時(shí)，運(yùn)行主機(jī)的FGET程序，格式為FGET 下載文件名。 然后從菜單選"接收文件"選項(xiàng)，輸入本地文件名后，即可接收文件。
標(biāo)簽： fget lcurses UNIX SCO
上傳時(shí)間： 2014-11-10
上傳用戶：xuan‘nian
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