• Recent
    • Docs
    • Github
    • 百度网盘
    • Onedrive
    • Official
    • Shop
    • Register
    • Login
    1. Cool Pi For You
    2. Pi 4B
    Log in to post
    Load new posts
    • Recently Replied
    • Recently Created
    • Most Posts
    • Most Votes
    • Most Views
    • 零

      Coolpi 4b在使用ttyS0-S2口时,总是出现串口掉线,使用很不稳定,这个是为什么呢?有解决方案吗?

      Watching Ignoring Scheduled Pinned Locked Moved
      12
      0 Votes
      12 Posts
      483 Views
      大法师大

      @零度灬救赎
      cat /proc/cmdline查看对应的console有没有指向ttyS0,如果有,可以编辑/boot/firmware/extlinux/extlinux.conf,更改指向tty0

    • J

      系统备份异常

      Watching Ignoring Scheduled Pinned Locked Moved
      6
      0 Votes
      6 Posts
      537 Views
      大法师大

      @jugg 看iso名称,install是安装系统用的。备份使用backup iso

    • D

      apt update的时候报错,添加gpu驱动时添加不进去,是怎么回事啊?(Ubuntu22.04)

      Watching Ignoring Scheduled Pinned Locked Moved
      2
      0 Votes
      2 Posts
      191 Views
      G

      @diudiutong 这个看log是网络连接问题,默认的镜像已经集成GPU驱动。

    • 大法师大

      coolpi 4b python3 gpio operation compatable with raspberry pi

      Watching Ignoring Scheduled Pinned Locked Moved
      30
      0 Votes
      30 Posts
      3k Views
      大法师大

      @zensation not support setting pullup/down in user space now.

    • G

      Coolpi uses UMS to update the system

      Watching Ignoring Scheduled Pinned Locked Moved
      14
      1 Votes
      14 Posts
      844 Views
      G

      @jugg 更新系统不会破坏loader文件。不需要重新升级loader。

    • Z

      is there a available kernel with hibernate mode enabled to allow for faster booting?

      Watching Ignoring Scheduled Pinned Locked Moved
      14
      0 Votes
      14 Posts
      460 Views
      Z

      @george ok so i just figured something out. I removed my power supply hat that i have on my pi so i could connect my serial terminal pins and get you a log, and behold the suspend function works when i powered it on with the usb c port. so seems that for some reason supplying power through the gpio pins for some reason wont let me use the suspend function.

    • 阿

      串口

      Watching Ignoring Scheduled Pinned Locked Moved
      4
      0 Votes
      4 Posts
      257 Views
      G

      @阿里 都是独立的uart控制器,没有问题的。

    • J

      usb串口支持

      Watching Ignoring Scheduled Pinned Locked Moved
      3
      0 Votes
      3 Posts
      216 Views
      大法师大

      @jugg
      对的。

      https://www.cool-pi.com/topic/345/ch34x-uart-for-ubuntu22

    • 大法师大

      Coolpi 4b support dynamic update logo

      Watching Ignoring Scheduled Pinned Locked Moved
      13
      1 Votes
      13 Posts
      1k Views
      J

      @大法师
      26331c02-843d-4726-9416-a0e8939466fe-image.png
      日期也不对啊

    • 零

      coolpi 4b(ubuntu20.04系统)如何做超频设置(最高能提高到多少?)?

      Watching Ignoring Scheduled Pinned Locked Moved
      2
      0 Votes
      2 Posts
      205 Views
      G

      @零度灬救赎 目前2.4G最高,不支持再超到更高频率。强行超频可能会导致CPU物理损坏。建议增加散热措施,让CPU持续工作在高频即可。

    • G

      CAN bus testing tools and commands

      Watching Ignoring Scheduled Pinned Locked Moved
      1
      0 Votes
      1 Posts
      207 Views
      No one has replied
    • G

      Coolpi support 32GB of RAM

      Watching Ignoring Scheduled Pinned Locked Moved
      20
      0 Votes
      20 Posts
      1k Views
      G

      @Mz3D-0 Both CP4 and CM5 already support 32G/256G configurations and can be purchased directly from an agent.

    • J

      Cool pi 4b的spiflash有替代的吗,现在这个都停产了,板子上的flash烧了,有替代的flash换吗

      Watching Ignoring Scheduled Pinned Locked Moved
      7
      0 Votes
      7 Posts
      540 Views
      G

      @JohnConnor 飞线可以。

    • J

      coolpi4B 8822BU网卡 对比测试raspi4B 8821CU网卡

      Watching Ignoring Scheduled Pinned Locked Moved
      10
      0 Votes
      10 Posts
      719 Views
      J

      @george

      驱动里面可以这样改 系统里面怎么改?默认就关闭电源管理
    • J

      内核更新失败 开机停在logo界面

      Watching Ignoring Scheduled Pinned Locked Moved
      8
      0 Votes
      8 Posts
      494 Views
      J

      @jugg said in 内核更新失败 开机停在logo界面:

      @大法师
      没刷最新的loader
      我又试了一块板 按照更新的步骤 sync 了之后 断电重启 还是不行 驱动那里还是空的

      还真的是要sync 不能直接断电重启

    • J

      系统崩溃

      Watching Ignoring Scheduled Pinned Locked Moved
      7
      0 Votes
      7 Posts
      365 Views
      J

      @george
      这个需要怎么测?什么命令?

    • E

      Pi-4B板子的MIPI接口只能支持2-lane模式?

      Watching Ignoring Scheduled Pinned Locked Moved
      5
      0 Votes
      5 Posts
      400 Views
      G

      @elf
      IMX219
      https://m.tb.cn/h.UEn5Tbe?tk=vJdxdL2wsjZ
      OV5647
      https://m.tb.cn/h.UDYh0TE?tk=FUwydL2x1L

    • J

      CoolPi 4B支持USB网卡吗?

      Watching Ignoring Scheduled Pinned Locked Moved
      36
      0 Votes
      36 Posts
      1k Views
      J

      @大法师
      哦 就是用的时候才会加载

    • D

      coolpi 4B GPU(Mali-G610)支持的OpenCL 2.2版本在哪可以下载?

      Watching Ignoring Scheduled Pinned Locked Moved
      9
      0 Votes
      9 Posts
      636 Views
      G

      @大法师 目前没有单独OpenCL2.2的版本,正常3.0是可以向下兼容2.2.

    • D

      coolpi 4B安装的是Ubuntu20.04系统,clinfo命令无gpu信息,怎么回事?

      Watching Ignoring Scheduled Pinned Locked Moved
      1
      0 Votes
      1 Posts
      184 Views
      No one has replied
    • 1
    • 2
    • 3
    • 4
    • 5
    • 6
    • 7
    • 5 / 7