Install the CH340 serial port to USB driver on macOS Big Sur
According to the official tutorial, macOS Big Sur can't be installed normally
I checked the information for a day, and finally installed it successfully, which is actually very simple
- System preparation
Unplug the connected CH340-related device
Turn off System Security Mode
1, press and hold + while starting macOS
2, select Users, enter your password (Macs without T2 chips skip this step) - Click on the status bar Utilities > Terminal, enter:cmd R
Allow apps from other sources
System Preferences> Security & Privacy > General
Under Allow apps to download from: Select Any Source
Download the installation package
Click here to download it from GitHub:
https://github.com/adrianmihalko/ch340g-ch34g-ch34x-mac-os-x-driver/blob/master/CH34x_Install_V1.5.pkgComplete the installation
. Double-click to run the CH34x_Install_V1.5.pkg
. At the end of the installer, a dialog will pop up to go to System Preferences, allowing it to add apps (no need to restart in the installer, the last step will be enough to force quit)
. After the CH340 serial to USB driver is installed, when the terminal is running you can see the corresponding device "/dev/tty.wchusbserial..." ls /dev/tty*
issue
I don't know if it's a system bug, after I connect the device, the system report interface still shows that no device is connected: But when the terminal is running,
it can display the currently connected devicels /dev/tty*
The online tutorial says that you can turn back on the system safe mode after completing the installation, but I can't detect the connected serial converter after opening it Here's how to turn the safe mode
back on:
1. Press and hold + when starting macOS
2. Select the user and enter the password (Macs without T2 chips skip this step)
3. Click on the status bar Utilities > Terminal, enter:cmdR
csrutil enable
reboot
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Original link: https://blog.csdn.net/KANGYICHEN1/article/details/113186407