摘要
基于ZYNQ7000的继电保护平台采用双核架构,一个核负责保护逻辑,一个核负责通信人机界面,平台内部通过高速智能总线互相通信。从平台上电到Linux启动完成,需要少则几秒多则数十秒的时间,这一过程的液晶显示需要自己编写裸核驱动和应用程序,且要在一级引导、二级引导和Linux加载这三个过程中保持显示的稳定。Linux下的显示DRM驱动既需要保持通用性,也需要结合具体的应用加以修改,留出应用层接口,以灵活适应不同的显示需求。详述了基于ZYNQ7000的继电保护平台Linux系统开机画面的实现以及DRM驱动的修改,方便应用层调用,改善了产品的用户体验,取得了良好的效果。
From power-on of the platform to the completion of Linux startup,it takes a few seconds to tens of seconds.The LCD display in this process needs to write its own bare core driver and application program,and it needs to maintain the stability of the display in the three processes of level-1 boot,level-2 boot and Linux loading.The display DRM driver under Linux should not only be universal,but also be modified in combination with specific applications,leaving application layer interfaces to flexibly adapt to different display requirements.This paper details the implementation of the boot screen of Linux system based on ZYNQ7000 platform and the modification of DRM driver,which improves the user experience of the product and achieves good results.
出处
《工业控制计算机》
2023年第9期7-9,共3页
Industrial Control Computer
