基于FPGA的数据采集控制模块设计

Design of Data Acquisition Control Module Based on FPGA

设计以FPGA为基础的数据采集控制模块,克服传统的以单片机或DSP作为控制器带来的采集速度和效率上的瓶颈,同时显示部分创新性地采用了VGA标准接口,大大提高了显示系统的兼容性。设计的控制模块主要由四个部分组成:数据采集部分、数据缓存部分、按键控制部分和图形显示部分。在设计过程中,用VHDL语言来编写程序,利用Max+PlusⅡ软件对各模块进行仿真。从仿真结果可以看出,该模块能够实现数据的实时采集和采集结果的便捷显示,达到了作为数据采集主控模块对外围电路的良好控制。

Data acquisition control module based on FPGA is designed ,in order to overcome the bottleneck on speed and efficiency which used single chip computer,or DSP as the controller of acquisition. At the same time,VGA standard interface is adopted to improve the display system＇s compatibility. Design of the system is mainly comprised of four parts：data collection,data buffer, key control and graphic display. During the design process, using VHDL language program and the software of Max＋ Plus Ilto simulate each function modules. The results show that this control module has achieved real - time data acquisition and outcome of the acquisition conveniently display. It has achieved its purpose as a data acquisition central control module to control the external circuit,