测控技术2011，Vol.30Issue(3)：22-25,4.
基于FPGA的智能化波形发生板卡设计
Design of Intelligent Signal Generator Board Based on FPGA
黄誉 1李俨 1王新民1
作者信息
- 1. 西北工业大学自动化学院,陕西西安,710129
- 折叠
摘要
Abstract
Signal source is an important part of test system. It is the key point of getting the feedback on the performance parameters of the tested components. A FPGA-based signal generator board is presented, which use Verilog HDL to achieve the internal logic circuit design and DDS to achieve the wave frequencies. The transmission bus selects BLVDS. The FPGA accomplishes receiving and sending data on the BLVDS bus, and also fulfilling the data cache. PC instruction and feedback data in accordance with Modbus protocol for transmission, C8051F120 completes reading the data of the FPGA internal BLVDS receiver buffer, calculates the signal waveform data according to PC users needed, and then writes feedback packet into the FPGA data cache, also starts BLVDS drive circuit for data delivery. The results show that the communication is highspeed, stable and reliable, the waveform is smooth, and the error of amplitude and frequency is small.关键词
BLVDS/FPGA/Modbus协议/DDSKey words
BLVDS/ FPGA/ Modbus protocol/ DDS分类
信息技术与安全科学引用本文复制引用
黄誉,李俨,王新民..基于FPGA的智能化波形发生板卡设计[J].测控技术,2011,30(3):22-25,4.
