Template: CM4-DUAL-ETH-4G/5G-BASE Guide

From Waveshare Wiki
Jump to: navigation, search

Writing Image

Precautions

Do not plug or unplug any device while it is powered on.

PS: If you are using the system of the Bullseye branch, you need to change "apt-get" to "apt", the system of the Bullseye branch only supports Python3.

4G/5G

To work with 4G/5G, you need to connect a wireless module to the M.2 B KEY for featuring corresponding functions. M.2 B KEY only extends USB3.0 interfaces, it doesn't support PCIe devices.
CMD-DUAL-ETH-4G5G-BASE-11.jpg
SIM card is required to work with the 4G/5G module.
If you want to disable the 4G/5G module, you can set the GPIO6 to High and enable it again by setting the GPIO6 to Low.
The module requires about 30s to enable/disable the 4G/5G modules.

Status

STA NET STATUS
ON OFF Shutdown or Stating
ON ON Searching network
ON Flash Working
OFF Flash/ON Shutting down

Before you configure the 4G/5G module, please make sure that the module is working normally.

Configure 5G Modules

Configure 4G Modules

  • Install minicom
sudo apt-get install minicom
  • Run the minicom to configure moudules
sudo minicom -D /dev/ttyUSB2
  • Configure the modules with the following command
AT+CUSBPIDSWITCH=9011,1,1
  • Exit from the minicom and run the following command to assign IP for the usb0 (it maybe different if you connect other USB adapter)
sudo dhclient -v usb0
  • If the network cannot connected properly, pleaes run theone of the following AT command to change the frequency and test it again.
AT+CNBP=0x0002000000400183,0x000001E000000000,0x0000000000000021
AT+CNBP=0x0002000000400180,0x480000000000000000000000000000000000000000000042000001E200000095,0x0000000000000021

AT commands

If your 4G modules cannot connect to network properly, please try to trobuleshoot by minicom and the AT commands.

sudo apt-get install minicom
sudo minicom -D /dev/ttyUSB2
Common AT commands
Command Description Return
AT AT test OK
ATE ATE1 enable echo
ATE0 disable echo
OK
AT+CGMI Check manfacture OK
AT+CGMM Check module type OK
AT+CGSN Check SN OK
AT+CSUB Check module version OK
AT+CGMR Check firmware version OK
AT+IPREX Configure hardwara baud rate +IPREX:
OK
AT+CRESET Reset module OK
AT+CSQ Check signal quanlity +CSQ: 17,99
OK
AT+CPIN? Check SIM status +CPIN: READY
AT+COPS? CHeck the current supplier +COPS:
OK
AT+CREG? Check network status +CREG:
OK
AT+CPSI? Check UE information
AT+CNMP Configure network mode:
2:Automatic
13:GSM only
38:LTE only
48 : Any modes but LTE
... ....
OK

For more AT commands, please refer to: AT_Command_V2.00
You can also refer to:SIMCom

RTC FAN

  • Note 1: Please connect the cooling fan before you power the whole device, otherwise, the control chip will be damaged!
  • Note 2: Please check the voltage before you connect the cooling fan, it is default 12V.

Use Raspberry Pi system (2021-05-07-raspios-buster-armhf-full)
DO NOT use DSI and CSI when using RTC.
If you need to use it at the same time, switch the I2C to the I2C1 device (right).
CM4-DUAL-ETH-4G-5G-BASE-12.png
All programs or drivers need to be modified after switching.
The demo uses I2C10 by default (left).

If you need to use it simply, or add it to your program, refer to the C and Python demo reference [click here] The following is to add the driver to the kernel.

RTC

sudo nano /boot/config.txt
#Add at the end
dtparam=i2c_vc=on
dtoverlay=i2c-rtc,pcf85063a,i2c_csi_dsi
#Add # in front of dtparam=audio=on
#dtparam=audio=on
#Save and exit, restart
sudo reboot

Using Hwclock

  • Synchronize the system clock and the RTC
sudo hwclock -w
  • Synchronize the hardware clock and the RTC
sudo hwclock  -s

Note that it will be restore if the network is diabled

  • Set hardware clock
sudo hwclock --set --date="9/8/2021 16:45:05"
  • Check the hardware clock
sudo hwclock -r
  • Check the version
sudo hwclock --verbose

RTC test

1.Download the test demo.

Open the terminal of the Raspberry Pi, enter the following command:

sudo apt-get install p7zip-full
sudo wget https://www.waveshare.com/w/upload/4/42/PCF85063_code.7z
7z x PCF85063_code.7z -O./
cd PCF85063_code

2. Run the demo

C

Execute the following commands to compile and execute the test demo:

cd c
sudo make clean
sudo make -j 8
sudo ./main

And then you can check the running result as below:

RTC PCF85063 c test.png

Python

Enter the python/example directory:

cd python/example

And then run the python demo, the demo can support python2/3

# python2
sudo python main.py
# python3
sudo python3 main.py

The running result is as below:

RTC PCF85063 python test.png


FAN test

When powered on, the fan will spin for 1 second, then stop for 2 seconds, and then spin again. This is normal.<br\> There is currently no official configuration method for fans, there is a third-party configuration method: https://github.com/neg2led/cm4io-fan<br\> This method is released by a third party, not an official release, and we are not responsible for any problems! <br\>

mkdir -p ~/src
cd ~/src
git clone https://github.com/neg2led/cm4io-fan.git
cd cm4io-fan
sudo chmod 777 install.sh
sudo ./install.sh
#The following is a description of config.txt
#############################
Name: cm4io-fan
Info: Raspberry Pi Compute Module 4 IO Board fan controller
Load: dtoverlay=cm4io-fan,<param>[=<val>]
Params: minrpm RPM target for the fan when the SoC is below
                           mintemp (default 3500)
       maxrpm RPM target for the fan when the SoC is above
                           maxtemp (default 5500)
       midtemp Temperature (in millicelcius) at which the fan
                           begins to speed up (default 50000)
       midtemp_hyst Temperature delta (in millicelcius) below mintemp
                           at which the fan will drop to minrpm (default 2000)
       maxtemp Temperature (in millicelcius) at which the fan
                           will be held at maxrpm (default 70000)
       maxtemp_hyst Temperature delta (in millicelcius) below maxtemp
                           at which the fan begins to slow down (default 2000)
 #############################
Or directly refer to the following:
dtoverlay=cm4io-fan,minrpm=500,maxrpm=5000,midtemp=45000,midtemp_hyst=2000,maxtemp=50000,maxtemp_hyst=2000
The temperature is higher than 45 degrees Celsius and starts to accelerate, and the highest speed is higher than 50 degrees Celsius.

CSI DSI

CSI and DSI are disabled by default. When using the camera and DSI, it will occupy three I2C devices: I2C-10, I2C-11, and I2C-0.

  • Open a terminal and run the following commands:
wget https://www.waveshare.net/w/upload/7/75/CM4_dt_blob_Source.zip
 unzip -o  CM4_dt_blob_Source.zip -d ./CM4_dt_blob_Source
 sudo chmod 777 -R CM4_dt_blob_Source
 cd CM4_dt_blob_Source/
 #If you want to use both cameras and DSI0
 sudo  dtc -I dts -O dtb -o /boot/dt-blob.bin dt-blob-disp0-double_cam.dts
 #If you want to ue both cameras and DSI1
 sudo  dtc -I dts -O dtb -o /boot/dt-blob.bin dt-blob-disp1-double_cam.dts
 #When using any DSI interface, HDMI1 will have no image output, even if you do not connect the DSI screen, as long as you compile the corresponding file, then HDMI1 will not output
  #If you need to restore, please delete the corresponding dt-blob.bin: sudo rm -rf /boot/dt-blob.bin
  # After execution, turn off the power and restart the CM4

Recording test

And then connect the cameras and DSI display
1: Please power off the IO Board first before your connection.
2: Connect the power adapter after connecting the cameras and DSI display
3: Wait a few seconds before the screen boot up.
4: If the DSI LCD cannot display, please check if you have added /boot/dt-blob.bin. If there already has the dt-blob.bin, just try to reboot.
5: The camera needs to be enabled by raspi-config, enter sudo raspi-config on the terminal, choose Interfacing Options->Camera->Yes->Finish-Yes and reboot the system

Old Version (Buster)

  • Test the Cameras:

Test camera0:

sudo raspivid -t 0 -cs 0

Test camera1:

sudo raspivid -t 0 -cs 1

New Version (Bullseye)

If you are using the latest Raspberry Pi OS (Bullseye):

libcamera-hello -t 0
or
libcamera-hello

#The new system uses dual cameras
#Remove or comment out the line camera_auto_detect=1 in config.txt
#camera_auto_detect=1

#Add the following lines:
dtoverlay=imx219,cam1
dtoverlay=imx219,cam0

#Add the corresponding line according to the camera you use, where imx219 is the camera sensor model, and there are other sensors
dtoverlay=ov5647,cam0
dtoverlay=imx219,cam0
dtoverlay=ov9281,cam0
dtoverlay=imx477,cam0

#then restart
reboot

#Other part of the commands:
#Check if the camera is detected
libcamera-hello --list-cameras

#Open the corresponding camera
libcamera-hello --camera 1
libcamera-hello --camera 0

#Taking Pictures
libcamera-jpeg -o test.jpg
#You can add --camera to specify the camera

More instructions click me

  • HDMI1 is disabled if you use DSI interfaces for displaying, even if you just compile the corresponding files without connecting to the DSI screen, please note it
  • Any connection of two HDMI ports can output images, not limited to which HDMI port, if two HDMI screens are connected, only HDMI0 has image output
  • If you want to enable both HDMI, please delete the dt-blob.bin file with the following command:
sudo rm -rf /boot/dt-blob.bin
  • Then reboot

Reference Raspberry Pi Manual

For more information about the CSI camera and DSI display, please refer to: