基于fpga的实用电子砰设计 大学毕设论文.doc

基于 FPGA 的电子称设计基于 FPGA 的实用电子称摘要: 该设计以现场可编程门阵列 FPGA 为核心控制部件, 并基于超高速硬件描述语言 VHDL 在 Xilinx 公司的 Spartan Ⅱ E 系列的 XC2S 100E 芯片上编程实现; 系统的硬件部分包括 FPGA 最小系统板,数据采集、人机交互界面三大部分。最小系统部分主要是扩展了外部数据存储器,数据采集部分由压力传感器、信号的前级处理和 A/D 转换部分组成。人机界面部分为键盘输入,点阵式液晶显示,软件基于 VHDL 语言实现了本设计的全部控制功能,包括基本的称重功能,和发挥部分的显示购物清单的功能,并增加了时钟、过载提示欠量程提示、语音提示等创新功能。整机系统结构简单, 使用方便。功能齐全,精度高,具有一定的开发价值。关键词: 电子称,计价,压力传感器, FPGA , VHDL Design of applied Electronic-balance Based on FPGA Tutor : Yan Wang Weiqing XUZhengyu Tang Renfu Lan (E lectr ic Engineering College NanHua University Hengyang Hunan , China) Abstr a ct:This isadesign for applied electronic-balance which isbased on FPGA(Field Programmable Gate Array). The design will be achieved in the S partan-II E-XC2S100E chip of Xilinx corporation by programming with the VHDL(Very High-speed Description Language) The hardware ofthe system includes the minimum system ofFPGA, the data collector, the interface ofperson and machine .The minimum system ’sfunction mainly istoexpand the storage, Thedata collector posed ofpressure sensor and A/Dconvertor,The interface ofpersom and machine includes keyboard and LCD software will achieve all control functions ofthis design according tothe language functions isincluding toweigh the function basically, and the function of the shopping detailed list. Besides, weadding several expanding functions such asdisplaying clock and prompting when the matter isoverload .The structure ofthe whole machine issimple, the usage isconvenience., the accuracy ishigh, Itisworth ofempoldering tothis applied electronic-balance. Keyword: The electronic balance, Pressure sensor, FPGA, VHDL 基于 FPGA 的电子称设计目录第一章系统方案的设计.......................................................................................................................... 4 电子称的设计要求....................................................................................................................... 4 基本要求.......................................