基于FPGA的数据采集控制系统的设计与分析.docVIP

石家庄铁道大学四方学院毕业设计 基于FPGA的数据采集控制系统的 设计与分析 The Design and Analysis of Data Acquisition Control System Based on FPGA 在科学技术研究和产业生产的各行业中，数据采集控制系统对生产过程或科学实验中各种物理量进行实时采集、测试和反馈控制的闭环控制，它在工业控制、军事电子设备、医学监护等许多领域发挥着重要作用。 本设计介绍了基于FPGA的数据采集控制系统的设计，系统以可编程逻辑器件FPGA作为采集系统的核心，根据模数转换器ADC和数模转换器DAC的工作原理FPGA的内部逻辑实现时序控制，对数据进行采集、A/D转换、数据运算、D/A转换以及数据显示控制A/D转换控制模块、数据运算与处理模块、D/A转换控制模块、有关按键输入与数据显示控制模块以及数码管显示模块，运用VHDL语言编程实现了数据采集系统，通过在Altera公司开发的第四代EDA集成开发环境—QuartusⅡ 7.2中进行修改、编译、仿真，通过仿真结果来验证其正确性。在设计中，通过使用进程可以把整体的功能局部化、分块设计。采用多进程描述方法来进行程序设计，多个进程通过进程间通信机制互相配合，达到设计要求。此系统的设计实现性价比高，能够实现更多的功能。同时，还进一步提高了，系统的可靠性和工作效率，具有一定的实用和参考价值。 关键词： FPGA　ADC0809　DAC0832　VHDL　数据采集 Abstract In science and technology research and industry production of various industries, the data acquisition control system to the production process or scientific experiments of physical quantity of real-time data acquisition, testing and feedback control closed loop control, it in industrial control, military electronic equipment, medical care, and many other areas plays an important role. This design is introduced based on FPGA data collection of the design of control system, the system with programmable logic devices FPGA as collection the core of the system, according to ADC0809 adc and dac DAC0832 work principle, application of the internal logic FPGA realize sequential control, data collection, A/D conversion, data processing, D/A transformation and data display and control of the study design. This design mainly divided into five modules, A/D conversion control module, data operation and processing module, D/A transformation control module, relevant key input and data display and control module and digital pipe display module, the use of VHDL language programming to achieve data acquisition system, through the development of the company in Altera fourth generation EDA integrated development environment-Quartus Ⅱ7.2 modified, compilation, simulation, through the simulation results to verify its accuracy. In the design, through the u