@yusisamerican
You can use the armbian script on GitHub to build. The address is as follows:
https://github.com/yanyitech/armbian.git

@masterli
性能肯定会有损失，从目前群控那边的情况来看，没什么太大问题。

@masterli
只是不支持硬件虚拟化指令，不影响KVM安装使用。

@enok71
The following link is available for purchase on AliExpress. Thank you for your support.
https://www.aliexpress.com/item/1005006921921927.html

@enok71
Do you need to buy a separate CM5 core board?

@ytfycy
1.核心板可以支持PCIE3.0X4 ,目前对应的evb底板只有PCIE3.0X2.
2.笔记本的SSD接口是M2的PCIEX4接口。

Run Management

• Rockchip ARMv8 Cortex-A76 testing on Ubuntu 22.04 via the Phoronix Test Suite.
  

• Results
  

• HPL Linpack
  HPL is a well known portable Linpack implementation for distributed memory systems. This test profile is testing HPL upstream directly, outside the scope of the HPC Challenge test profile also available through the Phoronix Test Suite (hpcc). The test profile attempts to generate an optimized HPL.dat input file based on the CPU/memory under test. The automated HPL.dat input generation is still being tuned and thus for now this test profile remains "experimental".
  

• 7-Zip Compression
  This is a test of 7-Zip compression/decompression with its integrated benchmark feature.
  
  

• asmFish
  This is a test of asmFish, an advanced chess benchmark written in Assembly.
  

• Timed Linux Kernel Compilation
  

• Smallpt
  Smallpt is a C++ global illumination renderer written in less than 100 lines of code. Global illumination is done via unbiased Monte Carlo path tracing and there is multi-threading support via the OpenMP library.
  

• m-queens
  A solver for the N-queens problem with multi-threading support via the OpenMP library.
  

• N-Queens
  This is a test of the OpenMP version of a test that solves the N-queens problem. The board problem size is 18.
  

• Aircrack-ng
  Aircrack-ng is a tool for assessing WiFi/WLAN network security.
  

• SQLite Speedtest
  This is a benchmark of SQLite's speedtest1 benchmark program with an increased problem size of 1,000.
  

@jugg
我觉得应该是你系统的ko和内核不匹配导致的，使用如下命令解压ko到系统，然后重启试试：

sudo rm /lib/modules/* -R
sudo tar -zxvf /boot/firmware/modules.tar.gz -C /lib/

@jugg
ubuntu显示框架改为X11，22.04 wayland还是有些问题。

@jugg 再ubuntu通过apt source可以获取源码，放在debian下面编译安装，可能会有一些依赖包的问题，自己想办法解决一下。

@ytfycy
缺少什么包就安装一下。

@ytfycy
按照如下文档操作，机器先进入UMS模式，然后用etcher烧录脚本生成的镜像即可完成升级。
https://wiki.cool-pi.com/en/home/cm5_quick_start

@jugg
这个5G模组还在设计中。

@jugg
这个是RTL的驱动注册有问题，你可以加LOG信息在rtk的驱动里边跟踪一下，定位到具体哪里报异常。然后再想办法解决。

@jugg
这个要看具体的log信息，是驱动有冲突还是什么问题，你可以使用PCIE的网卡暂时规避这种问题，CM5的机器可以支持多种型号的PCIE+USB网卡。
这个模组目前是针对CM5的笔记本设计的，CM5-EVB暂时用不了。

Module selection

• RM500Q-GL is a 5G NR/LTE-A/UMTS/HSPA+ wireless communication module with receive diversity. It
  provides data connectivity on 5G NR SA and NSA, LTE-FDD, LTE-TDD, DC-HSDPA, HSPA+, HSDPA,
  HSUPA and WCDMA networks with standard PCI Express M.2 interface.

  It supports embedded operating systems such as Windows, Linux and Android, and also provides GNSS
  and voice functionality to meet specific application demands.

• The following table shows the frequency bands and GNSS type of RM500Q-GL module.

  Mode	RM500Q-GL
  5G NR	n1/n2/n3/n5/n7/n8/n12/n20/n25/n28/n38/n40/n41/n48/n66/n71/n77/n78/n79
  LTE-FDD	B1/B2/B3/B4/B5/B7/B8/B9/B12/B13/B14/B17/B18/B19/B20/B25/B26/B28/B29/B30/B32/B66/B71
  LTE-TDD	B34/B38/B39/B40/B41/B42/B43/B46/B48
  WCDMA	B1/B2/B3/B4/B5/B8/B19
  GNSS	GPS/GLONASS/BeiDou/Galileo

Schematic design

Module Pin Definition

• Module pin layout,It can support PCIE interface or USB3.0 interface. We chose USB3.0 interface design, which is relatively easy to handle for compatibility and driver.

Signal connection

• Schematic encapsulation definition, based on the PIN definition of the module.When connecting USB3.0 or PCIE signals, they should be crossed, with TX connected to processor RX and RX connected to processor TX.

• Select the minimum GPIO method because the Coolpi CM5 laptop completely loses power during sleep, so it does not support module wake-up system. The GPIO connection is as follows:
  

• The following table describes the signal list, which is mainly divided into power supply, USB3.0, SIM card, and control signal.

Pin No	Pin Name	I/O	Power Domain	Description
2, 4, 70, 72, 74	VCC	PI	3.135-4.4 V	3.7 V typical DC supply
3, 5, 11, 27, 33, 39, 45, 51, 57, 71, 73	GND			Ground
7	USB_DP	AI/AO	USB 2.0 differential data bus (+)	Require differential impedance of 90 Ω
9	USB_DM	AI/AO	USB 2.0 differential data bus (-)	Require differential impedance of 90 Ω
29	USB_SS_TX_M	AO	USB 3.1 transmit data (-)	Require differential impedance of 90 Ω
31	USB_SS_TX_P	AO	USB 3.1 transmit data (+)	Require differential impedance of 90 Ω
35	USB_SS_RX_M	AI	USB 3.1 receive data (-)	Require differential impedance of 90 Ω
37	USB_SS_RX_P	AI	USB 3.1 receive data (+)	Require differential impedance of 90 Ω
36	USIM1_VDD	PO	Power supply for (U)SIM1 card	Class B (3.0 V)
34	USIM1_DATA	IO	(U)SIM1 card data	1.8/3.0 V power domain
32	USIM1_CLK	DO	(U)SIM1 card clock	1.8/3.0 V power domain
30	USIM1_RST	DO	(U)SIM1 card reset	1.8/3.0 V power domain
66	USIM1_DET	DI	(U)SIM1 card insertion detection	Internally pulled
6	FULL_CARD_POWER_OFF#	DI	Turn on/off of the module. When it is at low level, the module is turned off. When it is at high level, the module is turned on.	Internally pulled down with a 100k Ω resistor
67	RESET#	DI	Reset the module.Active LOW.	Internally pulled up to 1.8 V with a 100k Ω resistor
8	W_DISABLE1#	DI	Airplane mode control.Active LOW.	1.8/3.3 V power domain
10	LED_1#	WWAN_LED#	OD	RF status indication LED	It is an open drain and active LOW signal.

Power supply

The following figure shows a reference design for +5 V input power source based on an DC-DC
TMI3253SH. The typical output of the power supply is about 3.7 V and the maximum load current is 3A.

Power sequence

The turn-on scenario is illustrated in the following figure.

• tpower-on is time the interval between VCC and RESET_N HIGH level, which is a typically 33 ms. It is
  measured when RESET_N is not pulled down by the host device.
• tturn-on is the time interval between FULL_CARD_POWER_OFF# HIGH level and RFFE_VIO_1V8(an internal LDO output) HIGH level, which is typically 68 ms.
• tbooting is the time interval between RFFE_VIO_1V8 HIGH level and the USIM_VDD power-on.
  

Turn on the Module

It is recommended to use a host GPIO to control FULL_CARD_POWER_OFF#. A simple reference circuit
is illustrated in the following figure.

Turn off the Module

Pulling down the FULL_CARD_POWER_OFF# pin will turn off the module. The turn off
scenario is illustrated in the following figure.

PCB design

• Layout diagram
  
• 3D simulation diagram
  

Welding and hardware debugging

@jugg
如果是TI的库仑计，而且内核有驱动，正常DTS配置一下就可以了。如果是linux内核没有的库仑计型号，就需要自己加驱动，相对麻烦一点。

@jugg
笔记本用的是CW2015的库仑计。这颗会比较麻烦，使用前必须要测试充放电曲线，而且只能厂家帮忙测试。

@jugg
你电池是自带库仑计的吗，如果是这样需要知道库仑计的型号，然后DTS增加驱动即可。单纯升级notebook的系统大概率用不了。一般笔记本电池内置的库仑计TI的型号会比较多。

@ytfycy
是从现有的CM5备份，操作完以后会生成一个img文件，再用etcher升级到其它CM5机器即可。