非接触式IC卡读写器中I~2C总线接口的开发与验证
发布时间：2019-05-20 12:56
【摘要】：作为信息技术领域里发展最快的技术之一,IC (Integrated Circuit)卡在人们的日常生活中正发挥着越来越重要的作用。而非接触式IC卡凭借着无源和免接触的优势,一经问世就开始迅速占领着智能卡市场。在串行接口扩展总线于IC卡读写器芯片设计中受到广泛应用之际,I2C总线接口也以其简单有效的特点倍受青睐。 FM320是由复旦微电子公司开发的在13.56MHz下实现非接触通讯的高度集成IC卡读写器,支持多种Host端的接口方式,包括8位并行接口、SPI接口、I2C接口以及串行UART接口。本文主要基于对ISO/IEC14443协议规范和I2C总线协议规范的充分理解,在开发FM320芯片的过程中,针对芯片的I2C总线接口模块进行了电路设计,并针对其电路结构进行了全面的分析讨论。最后完成了对I2C接口的功能验证,验证主要通过从I2C接口向FM320内读写数据完成,覆盖了I2C接口的所有工作模式,模拟了多种传输情况和可能出现的传输错误,抓取了典型的功能验证点,通过观测波形和终端输出自校验两种方式完成了验证。验证结果表明I2C接口应答正常,读写功能无误,典型功能点验证结果基本良好,可以为非接触式IC卡读写器芯片FM320正常使用。
[Abstract]:As one of the fastest developing technologies in the field of information technology, IC (Integrated Circuit) card is playing a more and more important role in people's daily life. The contactless IC card, with the advantages of passive and contact-free, began to occupy the smart card market as soon as it came out. At a time when serial interface extension bus is widely used in IC card reader chip design, I2C bus interface is also favored because of its simple and effective characteristics. FM320 is a highly integrated IC card reader developed by Fudan Microelectronics Company to realize contactless communication under 13.56MHz. It supports a variety of host interface modes, including 8-bit parallel interface, SPI interface, I2C interface and serial UART interface. Based on the full understanding of ISO/IEC14443 protocol specification and I2C bus protocol specification, in the process of developing FM320 chip, the circuit design is carried out for the I2C bus interface module of the chip. The circuit structure is analyzed and discussed in detail. Finally, the function verification of I2C interface is completed, which is mainly completed by reading and writing data from I2C interface to FM320, covering all the working modes of I2C interface, and simulating a variety of transmission conditions and possible transmission errors. The typical functional verification points are grasped, and the verification is completed by observing waveform and terminal output self-calibration. The verification results show that the response of I2C interface is normal, the reading and writing function is correct, and the verification results of typical function points are basically good. It can be used normally for contactless IC card reader chip FM320.
【学位授予单位】：复旦大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP334.7
本文编号：2481656
[Abstract]:As one of the fastest developing technologies in the field of information technology, IC (Integrated Circuit) card is playing a more and more important role in people's daily life. The contactless IC card, with the advantages of passive and contact-free, began to occupy the smart card market as soon as it came out. At a time when serial interface extension bus is widely used in IC card reader chip design, I2C bus interface is also favored because of its simple and effective characteristics. FM320 is a highly integrated IC card reader developed by Fudan Microelectronics Company to realize contactless communication under 13.56MHz. It supports a variety of host interface modes, including 8-bit parallel interface, SPI interface, I2C interface and serial UART interface. Based on the full understanding of ISO/IEC14443 protocol specification and I2C bus protocol specification, in the process of developing FM320 chip, the circuit design is carried out for the I2C bus interface module of the chip. The circuit structure is analyzed and discussed in detail. Finally, the function verification of I2C interface is completed, which is mainly completed by reading and writing data from I2C interface to FM320, covering all the working modes of I2C interface, and simulating a variety of transmission conditions and possible transmission errors. The typical functional verification points are grasped, and the verification is completed by observing waveform and terminal output self-calibration. The verification results show that the response of I2C interface is normal, the reading and writing function is correct, and the verification results of typical function points are basically good. It can be used normally for contactless IC card reader chip FM320.
【学位授予单位】：复旦大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP334.7
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相关期刊论文 前3条
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