基于FPGA的MEMS加速度传感器接口设计  

Design of MEMS Acceleration Sensor Interface Based on FPGA

作　　者：纪龙蛰[1] 单庆晓[1] 

机构地区：[1]国防科技大学机电工程与自动化学院,湖南长沙410073

出　　处：《测试技术学报》2011年第5期466-470,共5页Journal of Test and Measurement Technology

摘　　要：介绍了新型MEMS加速度传感器SMB380在加速度测量中的应用,完成了基于FPGA的数据采集系统接口设计,用VHDL语言编程,利用FPGA的普通I/O口模拟I2C总线规范的信号时序,实现FP-GA与SMB380的数据通信,并通过RS-232串行接口将数据送入PC机,利用C++Builder进行操作界面软件设计,实现了实时数据的图形化显示.This paper proposes the application of the new MEMS acceleration sensor SMB380 in acceleration measurement. The interface design of the data acquisition system based on FPGA was accomplished. The common I/O port of FPGA can simulate the signal time sequence of I2C bus by using hardware description language VHDL. The system realized data communication between FPGA and SMB380, and the acceleration data can be sent to PC via the serial port RS-232. Using C ＋ ＋ Builder we designed the operation software which can draw the real time waveform of the acceleration data.

关 键 词：MEMS加速度传感器 SMB380 FPGA I2C 串行通信 C++BUILDER 

分 类 号：TN919.6[电子电信—通信与信息系统]