摘要
为了适应嵌入式系统显示终端的图形显示应用需要,提出了一种通用的VGA波形显示系统。依据VGA的显示原理,该系统FPGA内部集成A/D控制模块、双口RAM模块和VGA显示控制模块,利用双口RAM完成了采集数据的缓存,通过VGA显示控制模块读取缓存数据,产生标准的VGA控制时序信号,实现数据的图形显示。测试结果表明:基于FPGA的波形显示系统能够产生正确的VGA接口时序,完成波形数据的稳定显示。该系统具有自主知识产权核,方便移植,为基于FPGA的嵌入式可视化终端提供一种较好的解决方案。
In order to meet the graphics display application needs of the display terminal of the embedded system, a universal VGA waveforms display system was proposed. According to the VGA display principle, the system internal FPGA integrated A/D control module, dual-port RAM module and VGA display control module. The dual-port RAM was used to complete the acquisition data cache, the VGA display control module read the cached data, produced the standard VGA control timing signal, and then realized the graphical display of data. The test results show that the waveforms display system based on FPGA can generate the correct timing of the VGA port and implement a stable display of the waveforms data. The system with independent intellectual property core is easy to transplant and provides a better solution for the embedded visualization terminals based on FPGA.
出处
《液晶与显示》
CAS
CSCD
北大核心
2014年第1期88-93,共6页
Chinese Journal of Liquid Crystals and Displays
基金
陕西省教育厅科研计划项目资助(No.2013JK1059)
陕西理工学院科研计划(No.SLGKY12-21)
