基于FPGA的SPI与ⅡC总线通信系统的设计与实现
发布时间：2018-08-07 17:52
【摘要】：随着数字集成电路的飞速发展,FPGA以其设计灵活、设计周期短、可靠性高等优点受到越来越多的开发人员的追捧。除此之外,随着现代科学技术的不断进步,人们对系统功能和性能的需求也在不断的增长,这就对计算机与外围设备之间的接口的性能提出了更高的要求。相对于并行总线来说,串行总线的性价比更高,在远距离数据传输方面具有无可替代的优点,故串行总线的应用范围也越来越广泛,在多种器件上都集成有SPI总线或ⅡC总线的接口。但是在很多场合下,MCU本身并不具有SPI或ⅡC接口,这样就使得数据的传输变得非常不方便。基于此,本文提出并设计了一种基于FPGA的SPI与ⅡC总线的通信系统,利用这个系统能够实现SPI与ⅡC通信协议的相互转换,使得SPI主设备与ⅡC从设备的通信、ⅡC主设备与SPI从设备的通信成为可能。本文首先简单介绍了整个通信系统;然后分别针对SPI/ⅡC总线的具体性能要求,提出了基于FPGA的SPI/ⅡC总线的设计方案,并进行了验证;最后根据设计要求及SPI/ⅡC总线的性能要求,提出了基于FPGA的SPI与ⅡC总线通信系统的设计方案,并对该方案进行了软件级的模拟仿真以及实验验证。本文中的设计方案将整个系统分成了 SPI总线、接口部分及ⅡC总线三部分,这使得整个设计结构更加清晰。同时采用硬件描述语言VHDL编程,使其能够在不同的应用环境中进行优化,也能够提高数据的传输速度。本文重点对通信系统的SPI总线、总线接口及ⅡC总线三部分进行了研究,使用VHDL硬件描述语言完成了对其功能的描述,并得到了相应的模块图,同时做了相应的仿真及实验验证的工作,最后得到的仿真及实验结果基本符合设计要求。
[Abstract]:With the rapid development of digital integrated circuits, FPGA has been sought after by more and more developers for its advantages of flexible design, short design period and high reliability. In addition, with the continuous progress of modern science and technology, the demand for system function and performance is also increasing, which puts forward higher requirements for the performance of the interface between computer and peripheral equipment. Compared with parallel bus, serial bus has higher performance-to-price ratio and has irreplaceable advantages in long-distance data transmission, so the application of serial bus is more and more extensive. The interface of SPI bus or II C bus is integrated on many devices. However, in many cases, SPI itself does not have SPI or II C interface, which makes data transmission very inconvenient. Based on this, this paper proposes and designs a communication system between SPI and 鈪，
本文编号：2170856
[Abstract]:With the rapid development of digital integrated circuits, FPGA has been sought after by more and more developers for its advantages of flexible design, short design period and high reliability. In addition, with the continuous progress of modern science and technology, the demand for system function and performance is also increasing, which puts forward higher requirements for the performance of the interface between computer and peripheral equipment. Compared with parallel bus, serial bus has higher performance-to-price ratio and has irreplaceable advantages in long-distance data transmission, so the application of serial bus is more and more extensive. The interface of SPI bus or II C bus is integrated on many devices. However, in many cases, SPI itself does not have SPI or II C interface, which makes data transmission very inconvenient. Based on this, this paper proposes and designs a communication system between SPI and 鈪，
本文编号：2170856
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