@nickliu Thanks! While burn firmware and insert eMMC or TF card first booting, please save serial console log.

@nickliu https://www.cool-pi.com/topic/168/如果制作的启动盘无法加载

Maybe like this. Do you have TF card which can load into system?

OV5647模块适用于Cool Pi 4b

Use buildroot system image for test camera ov5647.

离线刷机镜像

在线刷机镜像

@nickliu emmc onboard also nice！

change console to ttyS1, and then boot again if something output message from HDMI.

@nickliu I'v check these images and boot okay.

---

---

Build a docker image with Dockerfile

$ cat Dockerfile
FROM ubuntu:20.04
MAINTAINER JACK<jack@cool-pi.com>

#RUN sed -i s@/ports.ubuntu.com/@/mirrors.aliyun.com/@g /etc/apt/sources.list \
    && apt-get clean

RUN apt-get update

ENV DEBIAN_FRONTEND=noninteractive

RUN apt-get install -y build-essential chrpath vim expect git curl dialog tzdata locales iputils-ping net-tools

ENV TZ=Asia/Shanghai

RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

RUN locale-gen en_US.UTF-8 && DEBIAN_FRONTEND=noninteractive dpkg-reconfigure locales

ENV LANG=en_US.UTF-8

ENV LANGUAGE=en_US.UTF-8

ENV LC_ALL=en_US.UTF-8

RUN locale-gen en_US

RUN useradd coolpi;\
  adduser coolpi sudo;\
  mkdir -p /home/coolpi;\
  chown coolpi:coolpi -R /home/coolpi;\
  echo coolpi:coolpi | chpasswd;

#CMD su -l coolpi
#CMD "/bin/bash"

$ docker build -t my-ubuntu:20.04 --rm=true .
...

---

@lymnxn 手动挂载更新。后续发布再合入

@retroman Bluetooth feature has been added to support. I will upload a new image file (20230118) to onedrive.

@dreamer

uart2 node is used for console and uart9 node is used for bluetooth.

@bbsvs2000
禁用rkisp、cif、csi
rk3588s-cp4.dtb

用于加载/boot/firmware/wifi.txt
wifi_precfg

sudo cp rk3588s-cp4.dtb /boot/firmware/rk3588s-cp4.dtb

sudo cp wifi_precfg /usr/sbin/

sudo chmod a+x /usr/sbin/wifi_precfg

sudo reboot

为方便将emmc模块当做TF卡使用，我们设计了转接小板。配合读卡器，可以当做一个移动U盘使用。

如果转接小板不能很好插入读卡器，请磨平如下箭头标识位置后，再测试。

Burn system image to ssd and load from usb3 port!

百度网盘下载更新loader固件20230207

USB外接SSD硬盘，对电源适配器有要求，至少5V/3A！
好用！推荐这种方式

@retroman Not only. Thanks!

@bbsvs2000 usb-hub电源适配器拍照看下。另外摄像头直接连接主板也试下功能是不是正常的

@bbsvs2000

看log有部分错误信息。将外挂的usb-hub接到蓝色USB3端口试试

[  313.897060] usb 5-1: Product: USB2.0 Hub
[  313.949139] hub 5-1:1.0: USB hub found
[  313.949386] hub 5-1:1.0: 4 ports detected
[  314.228959] usb 5-1.1: new full-speed USB device number 39 using xhci-hcd
[  314.302370] usb 5-1.1: device descriptor read/64, error -32
[  314.485667] usb 5-1.1: device descriptor read/64, error -32
[  314.555768] usb 5-1: USB disconnect, device number 38

@dreamer
hi, please add extra operation for coolpi user.

Add rules for normal user:

sudo echo "SUBSYSTEM==\"gpio*\", ACTION==\"add\", PROGRAM=\"/bin/bash -c 'chown root:coolpi /sys/class/gpio/export /sys/class/gpio/unexport;chmod 220 /sys/class/gpio/export /sys/class/gpio/unexport'\"" > /lib/udev/rules.d/99-gpio.rules
sudo echo "SUBSYSTEM==\"gpio*\", ACTION==\"add\", PROGRAM=\"/bin/bash -c 'chown root:coolpi /sys%p/direction /sys%p/value /sys%p/edge /sys%p/active_low; chmod 0660 /sys%p/direction /sys%p/value /sys%p/edge /sys%p/active_low'\"" >> /lib/udev/rules.d/99-gpio.rules
sudo reboot

---

Check rules:

coolpi@coolpi:~/Desktop$ cat /lib/udev/rules.d/99-gpio.rules 
SUBSYSTEM=="gpio*", ACTION=="add", PROGRAM="/bin/bash -c 'chown root:coolpi /sys/class/gpio/export /sys/class/gpio/unexport;chmod 220 /sys/class/gpio/export /sys/class/gpio/unexport'"
SUBSYSTEM=="gpio*", ACTION=="add", PROGRAM="/bin/bash -c 'chown root:coolpi /sys%p/direction /sys%p/value /sys%p/edge /sys%p/active_low; chmod 0660 /sys%p/direction /sys%p/value /sys%p/edge /sys%p/active_low'"

---

Test case:

coolpi@coolpi:~/Desktop$ echo 115 > /sys/class/gpio/export 
coolpi@coolpi:~/Desktop$ ls /sys/class/gpio/gpio115
active_low  device  direction  edge  power  subsystem  uevent  value
coolpi@coolpi:~/Desktop$ echo out > /sys/class/gpio/gpio115/direction 
coolpi@coolpi:~/Desktop$ echo 1 > /sys/class/gpio/gpio115/value 
coolpi@coolpi:~/Desktop$ echo 0 > /sys/class/gpio/gpio115/value 
coolpi@coolpi:~/Desktop$

@bbsvs2000

提供以下命令输出

lsusb
lsusb -t
dmesg

用自带相机能打开几个摄像头

@bbsvs2000
https://www.cool-pi.com/topic/159/20221213-ubuntu-20-04-preinstalled-desktop-arm64看不到周边wifi列表-鼠标箭头看不到等现象/21?page=2

@bbsvs2000

sudo dpkg -i coolpi-kernel_1.0.0_aarch64.deb
sudo reboot

deb包安装--增加驱动支持

@bbsvs2000
稍等