雷达科学与技术2012，Vol.10Issue(6)：671-676,6.
基于FPGA的多通道高速数据采集系统
Multichannel High-Speed Data Acquisition System Based on FPGA and USB 2.0
吴越 1严济鸿 1何子述1
作者信息
- 1. 电子科技大学电子工程学院,四川成都611731
- 折叠
摘要
Abstract
This paper designs and realizes a USB-based multichannel high-speed data acquisition system to meet the requirements of a radar experiment platform. The system uses FPGA as its control core and employs multiple high sampling rate ADCs to realize multichannel high-speed data acquisition. In order to make sure the data transfer is unblocked, each channel owns a high-capacity DDR2 for high-speed data caching, and DDC to reduce the speed of data writing in. It transfers data to computer with Slave FIFO mode of USB chip of EZ-USB FX2LP family, and has an application program for control, data acquisition and waveform display. The entire system is composed of hardware, logic circuit inside the FPGA, USB firmware, USB device driver and application program. In the test, this system acquires the signal whose centre frequency is 60MHz and bandwidth is 10 MHz effectively with sample rate at 80 MHz. The test result testifies that this project is correct and valid.关键词
现场可编程门阵列/通用串行总线/数据采集/多通道/高速Key words
field programmable gate array (FPGA)/ universal serial bus(USB)/ data acquisition/ multichannel/ high-speed分类
信息技术与安全科学引用本文复制引用
吴越,严济鸿,何子述..基于FPGA的多通道高速数据采集系统[J].雷达科学与技术,2012,10(6):671-676,6.
