Visualization versatile waveform-generator based on S3C2440

ZHANG Chuan-sheng

doi:10.3788/YJYXS20142906.0939

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Visualization versatile waveform-generator based on S3C2440

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- Visualization versatile waveform-generator based on S3C2440
- Chinese Journal of Liquid Crystals and Displays Vol. 29, Issue 6, Pages: 939-943(2014)
- 作者机构：
  
  中国科学院长春光学精密机械与物理研究所, 吉林长春 130033
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20142906.0939
  CLC： TP316.2;TP317.4
- Received：11 March 2014，
  
  Revised：12 April 2014，
  
  Published Online：06 May 2014，
  
  Published：05 December 2014
- 稿件说明：
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张传胜. 基于S3C2440的可视化多功能波形发生器的设计[J]. 液晶与显示, 2014,29(6): 939-943

ZHANG Chuan-sheng. Visualization versatile waveform-generator based on S3C2440[J]. , 2014,29(6): 939-943
张传胜. 基于S3C2440的可视化多功能波形发生器的设计[J]. 液晶与显示, 2014,29(6): 939-943 DOI： 10.3788/YJYXS20142906.0939.

ZHANG Chuan-sheng. Visualization versatile waveform-generator based on S3C2440[J]. , 2014,29(6): 939-943 DOI： 10.3788/YJYXS20142906.0939.

摘要

为了满足激光器控制系统对波形发生装置的需求，设计了基于S3C2440处理器和Altera公司的FPGA芯片的可视化多功能波形发生器的平台，对该平台所采用的DDS合成算法进行仿真。使用S3C2440处理器直接驱动TFT液晶屏和四线电阻触摸屏建立硬件平台，利用VHDL语言编写与处理器的数据接口，并利用IP库定制合适的DDS器件，按照输入的选项和参数，通过DDS生成频率和相位，通过DAC0832生成振幅，形成需要的波形信号。测试结果表明，该平台通过触屏输入参数，并完成波形数据曲线的生成及显示输出，与传统的函数发生器方法相比具有适用性好、使用方便、成本低廉的优点。该平台可以满足激光器控制系统的实际需求。

Abstract

To meet the demand for waveform-generator in the laser control system devices

a platform for designing the visualization versatile waveform generator is built based on the S3C2440 processor and the Altera's FPGA chip

and the DDS synthesis algorithm used in this platform is simulated. The hardware is built by using the S3C2440 processor and driving a TFT LCD screen and a four-wire resistive touching screen directly. VHDL language is used for the processor data interface and the appropriate DDS is selected on the basis of the IP. According to the input options and parameters

the desired waveform signal is output by a frequency and a phase generated by the DDS and amplitude generated by the DAC0832

respectively. Test results show that the platform can be used to generate and display the waveform curve completely by inputting the parameters in the touching screen. Compared with the conventional function generator

it has the merits of good applicability

easy use and low cost. The waveform-generator can be used and meet the test requirements in the laser control system.

关键词

Keywords

references

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Related Institution

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Changchun University of Science and Technology, School of Photoelectric Engineering, Changchun 130022, China

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