@night 机器TYPEC前端电源芯片耐压可以达到28V，极限可以到34V，所以你的适配器规格没有任何问题。
开发板的电源部分一直是我们设计最优先考虑的方向，所以前端第一级电源花了很多功夫，考虑到用户各种各样适配器的规格，最终选择目前国内少数几家真正能做车规级别电源方案的厂家。尽量保证前端电源稳定可靠。

root登录shell键入如下命令：

root@ubuntu:/# wget http://fishros.com/install -O fishros && bash fishros

选择更新源速度会大幅度提高

选择humble

选择桌面版

安装成功界面

简单测试：
两个shell终端分别输入下面两条指令

$ros2 run demo_nodes_py listener
$ros2 run demo_nodes_cpp talker

小乌龟测试：
两个shell终端分别输入下面两条指令

$ ros2 run turtlesim turtlesim_node
$ ros2 run turtlesim turtle_teleop_key

• Picture first
  
  
  

• 4G-32G Memory Capacity Replacement.

• The WIFI module is replaceable and supports models such as 2.4G 5G WIFI6.

• EMMC module supports up to 256G.

@zehui
启动的流程是一样的，目前uboot的结构如下：

FIT description: FIT Image with ATF/OP-TEE/U-Boot/MCU
Created:         Wed Feb 28 09:32:41 2024
 Image 0 (uboot)
  Description:  U-Boot
  Created:      Wed Feb 28 09:32:41 2024
  Type:         Standalone Program
  Compression:  uncompressed
  Data Size:    1389728 Bytes = 1357.16 KiB = 1.33 MiB
  Architecture: AArch64
  Load Address: 0x00200000
  Entry Point:  unavailable
  Hash algo:    sha256
  Hash value:   e8eeabe5b2891390396b4cb77a33c5bb8da03b1da33a64274a077cf386f2b5aa
 Image 1 (atf-1)
  Description:  ARM Trusted Firmware
  Created:      Wed Feb 28 09:32:41 2024
  Type:         Firmware
  Compression:  uncompressed
  Data Size:    200008 Bytes = 195.32 KiB = 0.19 MiB
  Architecture: AArch64
  Load Address: 0x00040000
  Hash algo:    sha256
  Hash value:   c902200be1343fe569e54778c286005b1c6163606664c463a24d787be4376966
 Image 2 (atf-2)
  Description:  ARM Trusted Firmware
  Created:      Wed Feb 28 09:32:41 2024
  Type:         Firmware
  Compression:  uncompressed
  Data Size:    24576 Bytes = 24.00 KiB = 0.02 MiB
  Architecture: AArch64
  Load Address: 0xff100000
  Hash algo:    sha256
  Hash value:   225d6bf0712f850648223365ba06a73ba5f6315fb8a9580f23ab48ece795f91e
 Image 3 (atf-3)
  Description:  ARM Trusted Firmware
  Created:      Wed Feb 28 09:32:41 2024
  Type:         Firmware
  Compression:  uncompressed
  Data Size:    24576 Bytes = 24.00 KiB = 0.02 MiB
  Architecture: AArch64
  Load Address: 0x000f0000
  Hash algo:    sha256
  Hash value:   aa71013e72d7ab4be264c1093b155ef06e65d0a263d552be25b13c8ddf285586
 Image 4 (optee)
  Description:  OP-TEE
  Created:      Wed Feb 28 09:32:41 2024
  Type:         Firmware
  Compression:  uncompressed
  Data Size:    465304 Bytes = 454.40 KiB = 0.44 MiB
  Architecture: AArch64
  Load Address: 0x08400000
  Hash algo:    sha256
  Hash value:   66e30bf9e879405a49797aaa6c08ca1c41aa325443e910af42e3df309e65909b
 Image 5 (kern-fdt)
  Description:  cp4/uboot.dtb
  Created:      Wed Feb 28 09:32:41 2024
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    141854 Bytes = 138.53 KiB = 0.14 MiB
  Architecture: AArch64
  Hash algo:    sha256
  Hash value:   ba43bc47ab29f0cbcba25658712ac3d3c6349a30486c76d5b720310e58f02de3
 Image 6 (fdt)
  Description:  U-Boot dtb
  Created:      Wed Feb 28 09:32:41 2024
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    7065 Bytes = 6.90 KiB = 0.01 MiB
  Architecture: AArch64
  Hash algo:    sha256
  Hash value:   987a71d492c0045c4964bbed7799da0eee5276a2b60b5a1335fc2d37fdfcf944
 Default Configuration: 'conf'
 Configuration 0 (conf)
  Description:  rk3588s-cp4
  Kernel:       unavailable
  Firmware:     atf-1
  FDT:          fdt
                kern-fdt
  Loadables:    uboot
                atf-2
                atf-3
                optee

@george

Add GPU driver

Add hardware decoding for FFMPEG videos

5G

4K (3840*2160) LCD

One more thing, everyone guess

Top-level interface

• The 2X20 pin interface is compatible with CP4 and integrates multiple UART, I2C, SPI, CAN and other functions.

• Three function keys are PWR, RST and LOADER.

• 2X2 PIN POE connector，such as CP4.

• 30pin fpc vertical connector can directly drive standard 30PIN EDP interface LCD. Resolution up to 3840 * 2160

• The MICRO HDMI-RX interface can support up to 4KP60 video signal input.

• TF card with self-locking.

• Two native USB3.0 interfaces, one of which supports OTG function.

• Two Gigabit Ethernet interfaces, one of which supports POE function.

• Two HDMI2.1 interfaces with a maximum resolution of 8K.

• Stereo headphone stand with MIC input function.

• Two native USB2.0 interfaces.

• One TYPEC power supply interface, consistent with CP4.

• The external power interface of 2PIN can support DC power input.

• 1 standard PCIE 4X connector, currently only supports PCIE3.0 2X/1X mode.

• SSD interface, only PCIE-M2-2242 size hard disk is supported.

• Standard 7PIN SATA3.0 interface, 4PIN power interface.

• M.2 WIFI module interface, supporting multiple general WIFI modules.

• Dual MIPI LCD interfaces support simultaneous output of two MIPI interface LCDs. The resolution of a single LCD is up to 1920 * 1200. It supports the MIPI DSC function.

• Four independent MIPI camera interfaces support four camera inputs at the same time. It can be configured as 2X4LINE or 4X2LINE mode.

Bot-level interface

• One 30PIN EDP interface can directly drive LCD output.

• MXM 314PIN core board connector.

Welcome to put forward good suggestions. We can consider revising them.

If you need to boot armbian normally, you need to update the loader file to version 0104.

Follow the steps below to update the loader:

• Download the latest loader file One Drive
  ![5594e1d4-3a7b-46fc-a7b5-2a9fe418dfc0-image.png]
  

• Short the 2 pins shown by the arrow.
  

• The USB interface and computer connection.
  

• Plug in the power supply and open the upgrade software. The machine enters the maskrom upgrade mode.
  

• choose to write by address
  

• Click Execute to complete the loader update.
  

• If the computer prompts that the USB driver cannot be found, please download and install the driver software first.One Drive
  

@大法师 补充一张内部图片，支持全国产化定制。

统信专业版，QQ 微信 WPS 邮件 CAD等软件流畅运行，办公追剧毫无压力。

Machine Introduction

COOLPI CM5 open-source notebook is a product that combines high performance, portability, and open-source spirit. It not only meets the basic computing needs of users, but also provides an ideal platform for those who enjoy free exploration and technological creation.

Installing the system

The machine is installed with Ubuntu 22.04 system by default at the factory. If users need other versions, they can update them according to the following tutorial.
The default username for the machine is: coolpi Password: 123

Download image

As shown in the following figure: System images can be downloaded through 百度网盘 or Onedrive.

Select the image that needs to be updated, and the image type will continue to be updated.

Download tools

Coolpi defaults to using Etcher to update system images, which can be obtained through Baidu Cloud, Onedrive, or the official website.

Machine enters UMS mode

The Type-C port of the machine is connected to the computer. When the Coolpi laptop is turned off, it can quickly press the power button multiple times, usually no less than 8 times, and the machine will enter MUS mode. The computer will recognize an icon for a USB drive. As shown in the following figure:

The X86 computer will recognize a UMS device.

Load image and flash

Follow the three steps shown in the figure to burn the image file. After the burning is completed, a forced restart is required. The method of forced power down is to continue holding down the power button for 10 seconds.

After downloading, restart the machine as shown in the following figure.

Update kernel

The kernel of Coolpi will continue to be updated, and users can also compile the mainline kernel themselves to upgrade the machine, following the steps below. The compilation of the kernel part in the following figure is completed on the Coolpi laptop, and users can also cross compile on the X86 computer. The method and steps are the same.

Synchronize kernel

sudo apt-get update
sudo apt-get upgrade
sudo apt-get install git 
git clone https://github.com/yanyitech/coolpi-kernel.git

Compile kernel

First, install the git toolkit, and it is best to update the system to the latest version before installation. Install some kernel dependent packages, then run the compilation script, enter numbers to select the corresponding machine model, and the compilation can proceed normally.

sudo apt-get install flex bison libssl-dev
sudo ln -s /usr/bin/python3.10 /usr/bin/python
cd coolpi-kernel 
./build-kernel.sh
Welcome to using Coolpi Development Board!
------------------------------------------
Please enter a number to select your machine

1. cp4b
2. cp4b-hdmi-in
3. cm5-evb
4. cm5-evb-v11
5. cm5-minipc
6. cm5-notebook
7. cm5-notebook-v20
8. cm5-8uart
9. cpnano
10. exit

Enter option number: 7

Upgrade machine kernel

After the normal compilation of the kernel, an out folder will be generated with the directory, which contains all the files required by the kernel. You can update the newly compiled kernel to the machine by using the following command.

Use the following command to update the kernel.

sudo cp ./out/* /boot/firmware -R
sudo rm /lib/modules/* -R
sudo tar -zxvf ./out/modules.tar.gz -C /lib/
sync
sudo reboot

If the kernel was cross compiled using X86 machines, the kernel can be updated using the following methods:

• Use the Samba shared folder to copy the compiled files to the Coolpi machine.
• Use mobile storage devices such as USB drives to copy.
• The coolpi machine enters UMS mode, connects to the X86 computer, enters the USM mobile disk, deletes all files, and copies all files in the generated out directory to the UMS mobile disk. Then force a restart of the Coolpi laptop.

Change the startup logo

Users can update the startup logo of the machine by copying files, using the following command.

sudo cp ./logo.bmp /boot/firmware
sync
sudo reboot

Below is a standard format for a logo file that users can download and modify. Please note that the pixel size, name, and format of the file should not be changed.
logo.zip

Frequently asked questions

The machine cannot enter UMS mode

Due to incomplete image updates, the partition table of EMMC is damaged, and the machine cannot enter UMS burning mode. The following methods can be used to repair the EMMC partition table.

• A USB interface mobile storage device with a capacity of no less than 16GB, and an X86 computer can burn any image to the USB device through ETCHER software.

• Insert USB storage device into the USB interface of the Coolpi laptop
  
• The machine will first start from the USB storage device when turned on. Then enter the system. Format EMMC using the following command.

sudo mkfs.ext4 /dev/mmcblk0

• Product image
  
  

• All interface functions have been debugged and are currently undergoing performance optimization.

• It is expected to be sold normally in early April.

Coolpi supports UMS to update emmc firmware, as follows:

1. Update the latest versions of loader and uboot images. You can also synchronize uboot code and compile it yourself.

git clone https://github.com/yanyitech/coolpi-loader
cd coolpi-loader
./build-uboot.sh cp4b

2. Connect a dual A port USB cable to the computer and the upper USB 3.0 interface. Plug in the power and press the power button three times, and the machine will enter UMS mode.
   
3. Use Etcher software to update the software.
   

@ngavarta
In the early stage, there was a plan to use a copper tube heat sink as shown in the figure below for heat dissipation between the CM5 and the fan. Later, the machines shipped were changed to passive graphite copper sheet heat dissipation.
Copper tube radiator：

Graphene+copper sheet radiator：

Temperature test data:

@davidm

1. It is recommended to use a USB 2.0 interface driver as the boot disk.
2. You can also put the system into single user mode and set the ROOT password, which will involve modifying CMDLINE.

The CM5-evb board has two native eDP interfaces, designed according to the standard 30PIN eDP interface, and can directly drive an eDP LCD without any conversion. Interface integrated backlight control circuit. LCD backlight brightness adjustment can be achieved.

@maxpol
Refer to the following documents：
https://www.cool-pi.com/topic/70/coolpi-4b硬件扩展三-i2c?_=1695004097775

@Momo-0
The structure is the same and can be directly replaced, then upgrade to the latest V20 software.

@Rock
At present, the maximum version supported by coolpi laptop is 23.04. Ubuntu 24.04 has just been released a few days ago and adaptation will take some time. It is expected that a version will be released in May. Thank you for your support.