中圖分類號： TP216
文獻(xiàn)標(biāo)識(shí)碼： A
DOI： 10.19358/j.issn.2096-5133.2020.09.002
引用格式： 簡志景，梁昊. 一種基于FPGA的多通道數(shù)據(jù)采集系統(tǒng)設(shè)計(jì)[J].信息技術(shù)與網(wǎng)絡(luò)安全，2020，39(9)：6-11.

Design of multi-channel data acquisition system based on FPGA

Abstract： A four-channel data acquisition system based on FPGA is designed and implemented. The system uses 65 MS/s Analog-to-Digital Convert(ADC) AD9219 to realize high speed sampling. In order to meet the requirements of real-time storage of collected data, a high-speed and high-capacity DDR2 hardware circuit and interface logic are designed. ADC data can be uploaded to the host computer through the USB interface. The host computer is responsible for the data storage, processing and visualizing. It can also control the Digital-to-Analog Convert(DAC) to output waveforms in the way of direct digital synthesis. The test results show that the system is stable, reliable and can be controlled flexibly. The system, including software and hardware, provides an overall solution for high-performance data acquisition, which can meet the requirements of low-temperature plasma diagnosis.

Key words : FPGA；multi-channel data acquisition；ADC；DDR2 SDRAM