目前以DSP或GPU为核心、FPGA为协处理器的机载显示器图形生成技术无法满足低成本、低功耗的应用场合.针对此现状,文章提出了一种基于SOPC的图形生成技术.该技术以SOPC为核心,搭建图形生成的硬件平台,使用SOPC内部集成的NiosⅡ软核处理器执行图形生成算法运算,并协同可编程逻辑资源完成对帧存的乒乓操作,实现图形数据的实时生成.与传统方法相比,该技术无需DSP或GPU芯片,可以明显降低产品的成本和功耗.实验结果表明,采用该技术后机载显示器可以生成640×480分辨率的图形,帧频为26 fps,能够满足机载显示器实时显示的需求.
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