本文介紹了利用MATLAB儀器實現MCU串行通信的方法:
上傳時間: 2013-11-09
上傳用戶:gxmm
AT93C46/56/66是Atmel公司生產的低功耗、低電壓、電可擦除、可編程只讀存儲器,采用CMOS工藝技術制造并帶有3線串行接口,其容量分別為1kB/4kB,可重復寫100萬次,數據可保存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計
上傳時間: 2014-01-16
上傳用戶:aix008
sscom30丁丁串口調試工具,可以自由設置波特率,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
上傳時間: 2013-11-08
上傳用戶:coeus
本內容介紹了IO模擬串口通訊的實現方法及實例分析
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,難以滿足舊型號設備或某些單片機要求RS232通訊的問題,設計出兩款RS232/USB電路。采用CH341A與MAX223集成電路芯片構建標準9線RS232/USB通用接口轉換器,無需編程。采用CH341A與PIC16F877A構建單片機與計算機之間的USB通訊電路,軟件遵循RS232通訊協議,硬件進行電平轉換。實際使用表明,這兩款產品與計算機端Windows 操作系統下的串口應用程序完全兼容,且通訊過程中無握手失敗現象。 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 理和方法的基礎上,分析了AVR 單片機SPI接口的工作過程,設計了AVR單片機和串行A/ D轉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,實現了AVR單片機 通過SPI接口與串行A/D轉換器之間的數據通訊。最后,用實驗和數據分析驗證了設計方 案的可行性。 關鍵詞: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 數據通信基礎 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通信程序 第四章 MSCOMM控件應用 第五章 線程開發... ......................
上傳時間: 2013-10-14
上傳用戶:swaylong
詳細介紹工控軟件組態王與單片機多機串口通訊的設計原理。分析組態王提供的直接與單片機串口通信方法的優點,給出系統基于RS-485總線傳輸的接口電路原理圖。根據組態王提供的通訊協議和單片機多機串口通訊的原理,給出程序設計流程與思路。 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結構與功能的基礎上,提出采用dsPIC33F系列微處理器與串行I2C時鐘PCF8583的接口設計方案,給出了相應的接口電路與軟件流程。該設計方案結構簡單,可靠性高,開發周期短,具有一定的實用與參考價值。所設計的微機保護裝置已投入現場運行,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.
上傳時間: 2013-11-18
上傳用戶:Thuan