串行通訊：一條信息的各位數(shù)據(jù)被逐位按順序傳送的通訊方式稱為串行通訊。串行通訊的特點(diǎn)是：數(shù)據(jù)位傳送，傳按位順序進(jìn)行，最少只需一根傳輸線即可完成，成本低但送速度慢。串行通訊的距離可以從幾米到幾千米。根據(jù)信息的傳送方向，串行通訊可以進(jìn)一步分為單工、半雙工和全雙工三種。
上傳時(shí)間： 2013-11-18
上傳用戶：txfyddz
根據(jù)所開發(fā)的電子產(chǎn)品故障維修實(shí)驗(yàn)系統(tǒng)的要求，提出了一套基于RS485總線的PC機(jī)與多單片機(jī)系統(tǒng)間的串行通信協(xié)議，已成功應(yīng)用于故障維修實(shí)驗(yàn)系統(tǒng)中。關(guān)鍵詞：Rs485總線；多單片機(jī)；串行通信
上傳時(shí)間： 2014-12-27
上傳用戶：smthxt
以GMS97C2051單片機(jī)為核心，采用TLC2543 12位串行A/D轉(zhuǎn)換器，設(shè)計(jì)了一個(gè)串行數(shù)據(jù)采集/傳輸模塊，給出了硬件原理圖和主要源程序。關(guān)鍵詞：串行A/D轉(zhuǎn)換器；串行數(shù)據(jù)傳輸；GMS97C2051單片機(jī) 在微機(jī)測控系統(tǒng)中，經(jīng)常要用到A/D轉(zhuǎn)換。常用的方法是擴(kuò)展一塊或多塊A/D采集卡。當(dāng)模擬量較少或是溫度、壓力等緩變信號場合，采用總線型A/D卡并不是最合適、最經(jīng)濟(jì)的方案。這里介紹一種以GNS97C2051單片機(jī)為核心，采用TLC2543 12位串行A/D轉(zhuǎn)換器構(gòu)成的采樣模塊，該模塊的采樣數(shù)據(jù)由單片機(jī)串口經(jīng)電平轉(zhuǎn)換后送到上位機(jī)（IBM PC兼容機(jī)）的串口COM1或COM2，形成一種串行數(shù)據(jù)采集串行數(shù)據(jù)傳輸?shù)姆绞健＝?jīng)實(shí)踐調(diào)試證實(shí)：該模塊功耗低、采樣精度高、可靠性好、接口簡便，有一定實(shí)用價(jià)值。
標(biāo)簽： 單片機(jī)串行 傳輸模塊 數(shù)據(jù)采集
上傳時(shí)間： 2014-01-26
上傳用戶：sjb555
Stellaris(群星)單片機(jī)加上32KB串行SRAM(英) INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH LUMINARY MICRO PRODUCTS. NO LICENSE,EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THISDOCUMENT. EXCEPT AS PROVIDED IN LUMINARY MICRO’S TERMS AND CONDITIONS OF SALE FOR SUCH PRODUCTS,LUMINARY MICRO ASSUMES NO LIABILITY WHATSOEVER, AND LUMINARY MICRO DISCLAIMS ANY EXPRESS OR IMPLIEDWARRANTY, RELATING TO SALE AND/OR USE OF LUMINARY MICRO’S PRODUCTS INCLUDING LIABILITY OR WARRANTIESRELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHTOR OTHER INTELLECTUAL PROPERTY RIGHT. LUMINARY MICRO’S PRODUCTS ARE NOT INTENDED FOR USE IN MEDICAL,LIFE SAVING, OR LIFE-SUSTAINING APPLICATIONS.
標(biāo)簽： Stellaris SRAM 32 KB
上傳時(shí)間： 2013-11-22
上傳用戶：lixqiang
LM3S系列單片機(jī)串行(UART)升級方案解決 介紹LM3S系列單片機(jī)如何通過串行（UART）接口更新用戶程序。
標(biāo)簽： LM3S UART 單片機(jī)串行 方案
上傳時(shí)間： 2013-12-17
上傳用戶：ynwbosss
I/O 型單片機(jī)使用手冊 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iv第三章 指令定義.....................................................................................107第四章 匯編語言和編譯器.....................................................................121常用符號..................................................................................................121語句語法..................................................................................................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..........................................................................................139匯編語言保留字..............................................................................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盛群單片機(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
單片機(jī)串行口 單片機(jī)是一種集成在電路芯片，是采用超大規(guī)模集成電路技術(shù)把具有數(shù)據(jù)處理能力的中央處理器CPU隨機(jī)存儲器RAM、只讀存儲器ROM、多種I/O口和中斷系統(tǒng)、定時(shí)器/計(jì)時(shí)器等功能（可能還包括顯示驅(qū)動(dòng)電路、脈寬調(diào)制電路、模擬多路轉(zhuǎn)換器、A/D轉(zhuǎn)換器等電路）集成到一塊硅片上構(gòu)成的一個(gè)小而完善的計(jì)算機(jī)系統(tǒng)。
上傳時(shí)間： 2014-12-27
上傳用戶：x18010875091
用C18編譯器進(jìn)行Microwire串行EEPROM與PIC18單片機(jī)的接口設(shè)計(jì) AN1004中文資料 目前市場上有許多種單片機(jī)用在嵌入式控制系統(tǒng)設(shè)計(jì)中，這些嵌入式控制系統(tǒng)中的很大一部分都要用到非易失性存儲器。由于串行EEPROM 具有封裝尺寸小，存儲容量靈活，對I/O 引腳要求低，和低功耗低成本等特點(diǎn)，已成為非易失性存儲器的首選。 為了滿足市場需求， Microchip Technology 已經(jīng)推出了一整套符合工業(yè)標(biāo)準(zhǔn)的串行EEPROM，覆蓋了2 線式（I2C™）、3 線式（Microwire）和SPI 通信標(biāo)準(zhǔn)，并提供了不同的存儲容量、工作電壓范圍和封裝形式。
標(biāo)簽： Microwire EEPROM C18 PIC
上傳時(shí)間： 2013-10-22
上傳用戶：crazyer
并行NOR Flash每次傳輸多個(gè)bit位的數(shù)據(jù)，而串行NOR Flash每次傳輸一個(gè)bit位的數(shù)據(jù)。并行NOR Flash比串行NOR Flash具有更快的傳輸速度。
上傳時(shí)間： 2013-11-01
上傳用戶：liu123
目前市場上有許多種單片機(jī)用在嵌入式控制系統(tǒng)設(shè)計(jì)中，這些嵌入式控制系統(tǒng)中的很大一部分都要用到非易失性存儲器。由于串行EEPROM 具有封裝尺寸小，存儲容量靈活，對I/O 引腳要求低，和低功耗低成本等特點(diǎn)，已成為非易失性存儲器的首選。
標(biāo)簽： PICmicro EEPROM SPI 串行
上傳時(shí)間： 2013-11-13
上傳用戶：invtnewer
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