Posts made by george

@樱月樱诗 USB接的哪一个口？应该是接上层USB3.0接口。

@Rock
The current human-computer interaction interface of uboot is not yet perfect. We are trying to do this and will notify you of the version launch as soon as possible. Thank you for your support.

@ytfycy这个logo信息是不对的。

开源笔记本拆机方法，点击播放

@Momo-0
Two WLAN nodes are normal, and the default configuration for drivers is to generate two nodes, even one node can be used.

@Momo-0
I'm really sorry, this board was tested before it was shipped, and it could also be caused by an abnormality during transportation. I will arrange to send you a new one. Because it is currently the May Day holiday, it may need to be processed after the holiday. I deeply apologize for the trouble I have caused you.

@Momo-0
From the log information, it appears that the USB Bluetooth network card was not recognized. It is recommended to remove the core board, remove the WIFI module, clean the gold finger with an eraser, and then install and retest.

@Momo-0
Run the following command and send the result.

lsusb

@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.

@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.

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。

@ytfycy
保存下面代码为sh脚本，然后放到U盘或者移动硬盘里边执行，执行前先增加一下权限。然后以root权限运行脚本。

!# /bin/sh

IMAGE_NAME="$(date "+%Y%m%d")-rootfs.img"
IMAGE_SIZE=8192
LOOP_NUMBER=$(losetup -f)

echo "01:remove firstrun"
rm /var/lib/misc/firstrun
echo "02:Establishing a mount directory"
mkdir ./mnt
echo "03:dd image file"
dd if=/dev/zero of=./$IMAGE_NAME bs=1M count=$IMAGE_SIZE
echo "04:Mirror Partition"
printf 'n\np\n1\n32768\n1081343\nn\np\n2\n1081344\n16777215\nw\n' | fdisk ./$IMAGE_NAME
echo "05:format partition"
partx -a -v ./$IMAGE_NAME
mkfs.vfat $LOOP_NUMBER"p1"
echo 'yes\n' | mkfs.ext4 $LOOP_NUMBER"p2"
echo "06:copy boot files"
mount $LOOP_NUMBER"p1" ./mnt
cp /boot/firmware/* ./mnt/ -R
umount ./mnt
echo "07:backup rootfs"
rm ./backup.fs
dump -0u -f - /dev/mmcblk0p2 >> ./backup.fs
echo "08:copy rootfs files"
mount $LOOP_NUMBER"p2" ./mnt
cd ./mnt
restore -rf ../backup.fs
umount ./mnt
cd ../
e2fsck -p -f $LOOP_NUMBER"p2"
resize2fs -M $LOOP_NUMBER"p2"
e2label $LOOP_NUMBER"p2" writable
losetup -d $LOOP_NUMBER
echo "09:backimg ok"
fdisk -l ./$IMAGE_NAME