virtual usb serial device
- After plugging in the device, there is an additional COM port, but it cannot be opened with the serial port debugging assistant
- There is one more device here
STM32xx Virtual COM, update the driver
- Browse my computer for drivers
- Let me pick from a list of drivers available on my computer
- Ports (COM and LPT)
- Manufacturer: STMicroelectronics
- Model: STMicroelectronics STLink Virtual COM Port
- The next step, warning, is
- At this time, it is found that there is an additional COM port, which can be opened by the serial port debugging assistant
DFU device
- After installing DFU Demo and DFU manager
- After pressing dfu to plug in the device, there is an additional STM32 Bootloader, but it cannot be recognized
- Check the driver details, there is no driver
- Drivers need to be installed manually
- The installation is complete, the triangle number is gone, and DFUDemo immediately recognizes the device
ref
STM32 DFU download and DFU generation tool
