AT93C46/56/66是Atmel公司生產(chǎn)的低功耗、低電壓、電可擦除、可編程只讀存儲器,采用CMOS工藝技術(shù)制造并帶有3線串行接口,其容量分別為1kB/4kB,可重復(fù)寫100萬次,數(shù)據(jù)可保存100年以上。文中介紹了該存儲器的引腳功能和指令時序,給出了AT93C46/56/66和單片機的接口應(yīng)用電路和軟件程序。
上傳時間: 2013-11-18
上傳用戶:2404
單片機無線串行接口電路設(shè)計
上傳時間: 2014-01-16
上傳用戶:aix008
sscom30丁丁串口調(diào)試工具,可以自由設(shè)置波特率,速度,方向等等!學習串口控制的必備軟件, 非常方便簡單易用
標簽: sscom 30 串口調(diào)試工具
上傳時間: 2013-11-08
上傳用戶:coeus
本內(nèi)容介紹了IO模擬串口通訊的實現(xiàn)方法及實例分析
上傳時間: 2013-11-11
上傳用戶:jiwy
為解決當前計算機串行通訊接口只有USB,難以滿足舊型號設(shè)備或某些單片機要求RS232通訊的問題,設(shè)計出兩款RS232/USB電路。采用CH341A與MAX223集成電路芯片構(gòu)建標準9線RS232/USB通用接口轉(zhuǎn)換器,無需編程。采用CH341A與PIC16F877A構(gòu)建單片機與計算機之間的USB通訊電路,軟件遵循RS232通訊協(xié)議,硬件進行電平轉(zhuǎn)換。實際使用表明,這兩款產(chǎn)品與計算機端Windows 操作系統(tǒng)下的串口應(yīng)用程序完全兼容,且通訊過程中無握手失敗現(xiàn)象。 Abstract: To solve the problem that current computer serial communication only with USB interface can not satisfy with the old type equipments or MCU to communicate with RS232, two kinds of RS232/USB circuit were designed.CH341A and MAX223 integrated circuit chips were used to create a standard 9-line RS232/USB universal interface convertor without programme. CH341A and PIC16F877A chips were adopted to build the USB communication circuit between computers and MCU. The software follows RS232 communication protocol, and the hardware converts electrical levels. Actual practices indicate that the two manufactures are compatible with serial application program of Windows operation system completely,and get avoid of handshake lost.
上傳時間: 2013-11-03
上傳用戶:siying
摘要:為了解決信號采集系統(tǒng)的同步串行通訊問題,在理解AVR 單片機SPI接口的通訊原 理和方法的基礎(chǔ)上,分析了AVR 單片機SPI接口的工作過程,設(shè)計了AVR單片機和串行A/ D轉(zhuǎn)換器的同步串行通訊接口,并用程序描述了SPI接口通訊的過程,實現(xiàn)了AVR單片機 通過SPI接口與串行A/D轉(zhuǎn)換器之間的數(shù)據(jù)通訊。最后,用實驗和數(shù)據(jù)分析驗證了設(shè)計方 案的可行性。 關(guān)鍵詞:SPI接口;AVR單片機;串行A/D
上傳時間: 2013-10-31
上傳用戶:lilei900512
第一章 數(shù)據(jù)通信基礎(chǔ) 第二章 通用串行通信標準和通用MODEM命令 第三章 嵌入式匯編語言開發(fā)通信程序 第四章 MSCOMM控件應(yīng)用 第五章 線程開發(fā)... ......................
上傳時間: 2013-10-14
上傳用戶:swaylong
詳細介紹工控軟件組態(tài)王與單片機多機串口通訊的設(shè)計原理。分析組態(tài)王提供的直接與單片機串口通信方法的優(yōu)點,給出系統(tǒng)基于RS-485總線傳輸?shù)慕涌陔娐吩韴D。根據(jù)組態(tài)王提供的通訊協(xié)議和單片機多機串口通訊的原理,給出程序設(shè)計流程與思路。 Abstract: In this paper,the design principle of communication between multi-SCM and KingView by serial ports is described in detail.We analysis the advantage of method supplied by KingView,by which KingView can communicate with serial ports of SCM directly,and provide the system’s interface circuit based on the RS-485transmission line.We provide flow diagram of programming and thinking on the basis of communication protocol supplied by KingView and principle of communication among multi-SCM through serial ports.
上傳時間: 2013-12-19
上傳用戶:tecman
實時時鐘是微機保護裝置的重要部件,在討論PCF8583結(jié)構(gòu)與功能的基礎(chǔ)上,提出采用dsPIC33F系列微處理器與串行I2C時鐘PCF8583的接口設(shè)計方案,給出了相應(yīng)的接口電路與軟件流程。該設(shè)計方案結(jié)構(gòu)簡單,可靠性高,開發(fā)周期短,具有一定的實用與參考價值。所設(shè)計的微機保護裝置已投入現(xiàn)場運行,效果良好。 Abstract: Real-time clock chip is an important part in microcomputer protection device.Based on discussing the structure and function of PCF8583,a new interface scheme which uses dsPIC33F microprocessor and serial clock chip(I2C)PCF8583is proposed.The method of the circuit design and the main software flow are introduced in this paper.The scheme has simple structure,higher reliability and shorter exploitation cycle,so has definite practicality or reference value.The microcomputer protection device has been put into operation with better effects.
標簽: 8583 PCF 串行時鐘 中的應(yīng)用
上傳時間: 2013-11-18
上傳用戶:Thuan
難點串行通信的四種工作方式 要求掌握:串行通信的控制寄存器串行通信的工作方式0和方式1了解:串行通信的基礎(chǔ)知識串行通信的工作方式2和方式3
上傳時間: 2013-12-18
上傳用戶:bruce
蟲蟲下載站版權(quán)所有 京ICP備2021023401號-1