In this guide, we will walk through why this happens and, more importantly, how to fix it so you can get back to debugging via UART.
This is the "nuclear option" that developers often use when dealing with firmware issues or when the official installer refuses to recognize the hardware ID. Zadig is a Windows application that installs generic USB drivers (like libusb or WinUSB) or can replace broken drivers. stm32 virtual com port driver windows 11
Your firmware might be using USB CDC (not ST-Link). In this guide, we will walk through why
Go to the STMicroelectronics Website . Step 2: Look for STSW-LINK009 (STM32 ST-LINK utility drivers). Even if you are using a newer ST-LINK V2 or V3, this driver pack often contains the necessary bridge files. Step 3: Download and install the executable. Your firmware might be using USB CDC (not ST-Link)
Most STM32 chips have integrated USB peripherals, allowing you to establish serial communication directly through the MCU's USB pins.