基于AD7762和FPGA的数据采集系统设计

Design of a Data Acquisition System Based on AD7762 and FPGA

为了满足音频数据采集过程中对频率和分辨率等技术指标的要求,设计了一种高速数据采集装置。文中设计采用Altera公司的Cyclone系列FPGA芯片EP1C4F400在QuartusⅡ环境下使用Verilog语言控制ADI公司的AD7762A/D转换器实现数据采集。通过串口将数据传给上位机,完成数据分析和显示功能。FPGA控制整个系统的采集时序。

In order to meet the higher requirements on frequency and resolution technology indexes in the audio data acquisition process, this paper proposes a high speed data acquisition device. This design uses the Altera company＇s Cyclone series EP1 C4F400 FPGA chip to control the AD7762 A/D converter by the ADI company and re- alizes data acquisition using Verilog language in Quartus Ⅱ environment. Serial port is used to transmit data to the PC, which accomplishes the function of data analysis and display. FPGA controls the acquisition timing of the whole system.