基于CPLD的弹载数据存储器的设计+Modelsim仿真
关键词 弹载数据存储器 复杂可编程逻辑器件 铁电存储器 I2C协议
毕业论文设计说明书外文摘要
Title The Design And Implementation Of The Missile-borne data memory Based On CPLD
Abstract
The missile-borne data memory is used to collect and store various dynimic parameters of the missile throughout the flight in order to provide valid data for the designment and improvement of the missile. However, the missile-borne data memory is usually placed in the limited space of the missile, in order to reduce the area of the missile-borne data memory, we can use a CPLD to realize part of the function of the digital circuits. This article introduce a method of using a CPLD to realize the function of the FRAM, in the quartusⅡ software, I use the Verilog programming language to write a memory module in order to realize the storage function of the FRAM and write the I2C protocol to realize the communication function of the FRAM, then I complete a simulation for the program in the Modelsim software. The simulation results show that the storage capacity is 32kbit and the rate of data transfer is up to 2.5Mbit/s, and this meet the design requirements.
Keywords missile-borne data memory CPLD FRAM I2C protocol
目 次
1 绪论 1
1.1 研究背景和意义 1
1.2 国内外研究现状 2
2 复杂可编程逻辑器件CPLD 6
2.1 CPLD特点及简介 6
2.2 FPGA特点及简介 7
2.3 CPLD和FPGA的主要区别 7
2.4 CPLD器件选型 8
3 软件开发平台与硬件描述语言 10
3.1 软件开发平台QuartusⅡ 10
3.2 硬件描述语言Verilog HDL 11
4 程序设计 15
4.1 铁电存储器FRAM 15
4.2 I2C协议说明 16
4.3 总体设计方案 19
5 仿真结果分析 25
5.1 仿真软件Modelsim 25
5.2 测试脚本的编写 25
结 论 30
致 谢 31
参考文献32
附录A 程序 34
附录B 测试脚本 46
1 绪论
1.1 研究背景和意义
任何武器装备的研制和改进都离不开存储测试技术的有力支持，现代导弹的研制周期长、研制过程复杂、研制成本高，任何一种导弹的研发从初期设计方案的论证到最后的导弹型号的定型都需要经过很多次的发射实验，一个好的测试存储系统可以对弹体在飞行过程中的各种环境参数和动态参数进行测量和存储，能够了解到弹体飞行过程中的实际工作状况，为弹药的设计、性能的评估和优化提供准确的数据[1]。