SPIIP接口设计毕业设计.docVIP

摘 要 SPI是英语Serial Peripheral interface的缩写，顾名思义就是串行外围设备接口。SPI是一种高速的全双工同步的通信总线，并且在芯片的管脚上只占用四根线，节约了芯片的管脚，同时为PCB的布局上节省空 Verilog HDL 串行 并行 FPGA  ABSTRACT SPI (Serial Peripheral interface) is a serial periphery slave interface. SPI is a fast, duplex and synchronism communication bus. And there are only 4 pins on the chip of SPI. It is so convenient for wire layings of PCB. SPI Flash is ideal for code download as well as storing nonvolatile voice, text and data. In this design, I have finished a SPI Flash Controller IP Core. It connects top driver and flash device just like a bridge. The controller receive the parallel data and control signal configured by top, and then the parallel data will be processed, and transmitted to the flash by SPI interface as serial signal in order to execute the read or write operation to the flash. The program actualizes in Verilog HDL, designed in VI under linux. EDA tools are used to simulate, synthesize and debug such as Debussy. After the design’s RTL code and simulation, this design made up a system with other IP on a FPGA platform in order to check the design. After all the work above finished, this paper analyze the function, area and cost of the SPI flash controller, summarize the experience of the graduation design. Keywords： Flash Verilog SERIAL COLLATERAL FPGA 目 录 第一章 引 言 1 第二章 SPI Flash Controller 简介 3 2.1 SPI简介 3 2.2 SPI Flash简介 5 第三章 SPI Flash Controller 设计环境 7 3.1 Verilog HDL语言简介 7 3.2 Linux系统下的设计开发环境简介 8 3.3 数字电路设计方法 9 3.4 Verilog HDL的设计流程 9 3.5 编译、模拟仿真EDA tool简介 10 3.6 ISE软件简介 10 3.7 Xilinx Spartan-3 系列器件介绍 11 3.8 HE register BUS 协议简介 12 第四章 SPI Flash Controller设计与实现 13 4.1 SPI Flash Controller的设计流程 13 4.2 设计规格 14 4.2.1 设计要求 14 4.2.2 I/O 端口 14 4.3 功能模块划分 16 4.4 功能模块设计 17 4.4.1 HE register 总线接口 17 4.4.2 发送顺序控制逻辑 18 4.4.3 串并转换控制逻辑 21 4.4.4 并串转换控制逻辑 22 4.4.5 数据状态信息选择逻辑 24 4.4.6 分频模块 24 4.4.7 片选逻辑模块 25 4.4.8 中断信号产生模块 25 第五章 SPI Flash Controller测试与验证 27 5.1 测试环境 27 5.2 测试文件架构 28 5.3