摘要本文总结了目前市场上各种单片机的发展以及在人们对其越来越高的要求研发出的单片机系统以适应各种应用需求。本文以实验样机的实现为核心,采用理论分析和系统联调的方法,对所需解决的理论和实践问题进行了讨论。主要介绍了MSP430系列单片机的发展背景、总体性能以及原理与应用,继而以其基于I2C总线存储系统的构成为例,介绍了一般MSP430单片机的电路设计及其通用串行模块的I2C模式,包括单片机与I2C总线的硬件连接方式和I2C自身电路的设计。除此之外,还介绍了AT24C1024系列二线制串行EEPROM的使用方法及串行EEPROM与单片机的软件接口,其中包括I2C模式下EEPROM驱动程序的设计。最后进行完整的嵌入式电路的总体调试,并且在Protel 99软件平台上以硬件电路图的形式加以体现。10524
关键词 单片机 MSP430 I2C总线 AT24C1024 嵌入式电路
毕业设计说明书(论文)外文摘要
Title Design Of Storage System Based On I2C-Bus
Abstract
This paper summarizes the development of a variety of microcontroller currently on the market and its increasingly high requirements to develop a microcontroller system to adapt to a variety of application needs.
In order to realize the anticipated functions of the experimental prototype machine, the theoretical and practical problems to be solved are discussed by combining theoretical analysis with overall system debugging.It mainly introduces the development background,the overall performance,as well as theory and application of the MSP430 MCU.Then in the example of the composition of the storage system based on the I2C-Bus,it introduces the circuit design of general MSP430 mircocontroller and its universal serial module in I2C mode including the method of the hardware connection of microcontroller and the I2C-Bus and the design of the I2C circuit.In addition,it also introduces the use of the AT24C1024 series of two-wire serial EEPROM and the software interface between serial EEPROM and the microcontroller which includes the design of EEPROM drivers in I2C mode.Finally,there is the overall debugging of embedded circuits which will be reflected in the form of a hardware schematic in Protel 99 software platform.
Keywords Mircocontroller MSP430 I2C-Bus AT24C1024 Embedded Circuits
目 次
1 绪论 1
1.1 研究背景 1
1.2 研究现状及意义 2
1.3 本文主要工作 4
2 MSP430超低功率单片机原理及性能6
2.1 MSP430单片机简介6
2.2 MSP430F149系列单片机结构与特点7
3 MSP430系列通用串行模块的I2C模式14
3.1 I2C概述14
3.2 I2C总线连接及MSP430I2C模块结构15
4 AT24C1024 EEPROM简介18
4.1 AT24C1024结构简介18
4.2串行AT24C1024 EEPROM读写操作20
4.3 EEPROM与单片机的连接23
5 基于I2C总线存储结构各部分设计24 5.1 MSP430F149单片机最小系统24
5.2 总电路软硬件设计27
结论 39
致谢 40
参考文献 41
1 绪论
1.1 研究背景
近年来,单片机在工业自动化、生产过程控制、智能仪器仪表等领域的应用越来越广泛,大大提高了产品的质量,有效地提高了生产效率[1]。单片机的发展经历了探索—完善—MCU化—百花齐放四个阶段。单片机也被称为微控制器,是因为它最早被用在工业控制领域。单片机由芯片内仅有CPU的专用处理器发展而来。最早的设计理念是通过将大量外围设备和CPU集成在一个芯片中,使计算机系统更小,更容易集成进复杂的而对提及要求严格的控制设备当中。INTEL的Z80是最早按照这种思想设计出的处理器,从此以后,单片机和专用处理器的发展便分道扬镳[2]。 基于I2C总线的存储系统设计+源代码+原理图:http://www.751com.cn/zidonghua/lunwen_9612.html