基于ptotues keil(I2C)串行通信系統(tǒng)仿真

目 錄

1. 引言  1
2. I2C總線原理  1
2.1 數(shù)據(jù)位的傳送  2
2.2 啟始和停止?fàn)顟B(tài)  3
2.3 傳輸數(shù)據(jù)  3
2.4 應(yīng)答  3
2.5 數(shù)據(jù)傳輸格式  4
2.6 I2C總線的尋址  5
2.7單片機主從系統(tǒng)I2C總線模擬程序  6
3 I2C總線應(yīng)用  6
3.1 I2C總線擴展E2PROM  6
3.2 I2C總線擴展I/O口  8
3.3 I2C總線A/D及D/A轉(zhuǎn)換  9
3.3.1 PCF8591芯片介紹  9
3.3.2器件總地址  9
3.3.3  D/A轉(zhuǎn)換與A/D轉(zhuǎn)換  10
程序附錄  14
參考文獻(xiàn)  23
致謝  24
 
摘  要：本文主要是基于I2C技術(shù)，應(yīng)用protues keil軟件，設(shè)計虛擬I2C總線串行通信外圍擴展。介紹了I2C串行通信的基本原理，虛擬I2C總線技術(shù)，I2C總線和E2PROM，ADC/DAC，I/O口等外圍器件接線方法，時序，及其尋址方法。
     
關(guān)鍵詞： I2C總線技術(shù)；串行通信；I2C總線虛擬技術(shù)；串行外圍擴展

Serial (I2C) communication system simulation Based ptotues keil

 
Abstract:  This article is based on I2C technology, application protues keil software, designing virtual I2C bus serial communications peripherals expansion. It has Introduced the basic principles of I2C serial communication, virtual I2C bus, I2C bus and E2PROM, ADC / DAC, I / O ports and other peripheral device connection method, timing, and addressing methods.

Key Words: I2C bus technology; serial communication; I2C bus virtual technology; serial peripheral expansion