@xingzhan2012 loader阶段选择是在串口上操作
Posts made by jack_admin
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RE: Cool pi 4B & CM5 探索快速安装系统新方法
@edwardzhou said in Cool pi 4B & CM5 探索快速安装系统新方法:
@AugustRobot_Zou 我一直插的是USB3.0的上面的端口,能正常启动。
你的主板刷了新版本的loader
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RE: Cool pi 4B & CM5 探索快速安装系统新方法
@AugustRobot_Zou 启动或备份U盘插到U3下层那个端口。备份操作与emmc内安装的系统没有强相关
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RE: 提个Power键的操作建议
@edwardzhou 有这个功能,长按硬关机。如果是ubuntu系统可以配置电源键功能,按一次关机(可以设置忽略60s计时)。关机后再按一次即可开机
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RE: PC 端 ADB 连接到 Cool Pi 4B rknn_server失败
@xingzhan2012 没配置该服务,另外默认otg端口也是主机host模式。如果走网络adb,起个服务
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RE: 升级到 ubuntu 22.04
@macthree 建议全新安装会更好,0303版本是纯净版系统,您也可以下载我们github ubuntu仓库构建纯净版本镜像
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Welcome to OpenEmbedded
Welcome to OpenEmbedded, the build framework for embedded Linux. OpenEmbedded offers a best-in-class cross-compile environment. It allows developers to create a complete Linux Distribution for embedded systems. Some of the OpenEmbedded advantages include:
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adopted as the build system for the Yocto Project in March 2011.
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support for many hardware architectures
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multiple releases for those architectures
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tools for speeding up the process of recreating the base after changes have been made
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easy to customize
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runs on any Linux distribution
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cross-compiles 1000's of packages including GTK+, Qt, the X Windows system, Mono, Java, and about anything else you might ever need
https://www.openembedded.org/wiki/Main_Page
https://www.openembedded.org/wiki/Commit_Patch_Message_Guidelines
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RE: coolpi 4b python3 gpio operation compatable with raspberry pi
@Macs said in coolpi 4b python3 gpio operation compatable with raspberry pi:
Does the coolpi have a DPI mode for the gpio like the RPI4?
WiringPi ?
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RE: 如何关闭小核,只保留大核运行
@edwardzhou
一种方法是通过改变cpu亲和性,绑定运行中的线程[coolpi@localhost ~]$ taskset -h Usage: taskset [options] [mask | cpu-list] [pid|cmd [args...]] Show or change the CPU affinity of a process. Options: -a, --all-tasks operate on all the tasks (threads) for a given pid -p, --pid operate on existing given pid -c, --cpu-list display and specify cpus in list format -h, --help display this help -V, --version display version The default behavior is to run a new command: taskset 03 sshd -b 1024 You can retrieve the mask of an existing task: taskset -p 700 Or set it: taskset -p 03 700 List format uses a comma-separated list instead of a mask: taskset -pc 0,3,7-11 700 Ranges in list format can take a stride argument: e.g. 0-31:2 is equivalent to mask 0x55555555 For more details see taskset(1). [coolpi@localhost ~]$