摘要
针对机载座舱显示器对高分辨率图形实时生成与显示的应用需求,提出了一种基于SDRAM帧存的图形生成电路实现方法。该方法以DSP作为图形处理器执行图形运算算法,以FPGA作为协处理器,对SDRAM帧存采取乒乓操作方式进行图形数据缓冲处理,实现了图形的实时生成。运用该方法只需两片SDRAM器件即可实现分辨率高达1 600×1 200的图形数据的实时生成与显示处理;对时序参数和接口逻辑做少许修改,可生成多种分辨率图形画面。
According to the requirement of real-time generation and display of high resolution graphics at cockpit graphics dis- play system, a method of graphics generation circuit based on SDRAM frame buffer is proposed. The graphics generation algorithms are performed by DSP.SDRAM frame buffer is accessed in ping-pong operation mode and the graphics can be generated in real- time in cooperation with FPGA. Only two chip of SDRAM is needed to generate the graphics with resolution of 1 600×1200 in re- al-time. The proposed system can be used for multiple resolution graphics by modifying the timing parameters and interface logic.
出处
《电子技术应用》
北大核心
2014年第9期44-47,共4页
Application of Electronic Technique
