You can view and interact with the ST3.0 interface using the STLINK-V3MINIE probe via its JTAG/SWD or Virtual COM port interfaces on a host PC.

Connecting the STLINK-V3MINIE

1. Hardware Setup: Connect the STLINK-V3MINIE to your STM32 target board using the JTAG/SWD interface or the STDC14 flat cable for board-to-board connections. Ensure the probe is powered via USB from your host PC, as it does not supply power to the target application .
2. Virtual COM Port: The STLINK-V3MINIE provides a Virtual COM port over UART, allowing the host PC to communicate with the microcontroller for debugging or serial monitoring .

Software Tools

1. ST-Link Utility / STM32CubeProgrammer: Install STM32CubeProgrammer or the ST-Link utility on your PC. These tools allow you to:
   • Detect the connected STM32 device
   • View memory and registers
   • Program firmware
   • Debug using the SWD/JTAG interface
2. Firmware Updates: Ensure the STLINK-V3MINIE firmware is up to date by downloading the latest version from the STMicroelectronics website. Updated firmware enables new features and fixes communication issues .
3. APIs for Advanced Access: For programmatic access, you can use:
   • ST's C++ API for direct communication with the ST-Link bridge interface
   • Unofficial Python API for scripting and automation of debugging tasks

Indicators and Status

• LED Indicators: The STLINK-V3MINIE has LEDs to indicate status:
  • Blinking red: USB enumeration with the PC
  • Red: Communication established
  • Blinking green/red: Data exchange between target and PC

Viewing the Interface

Once connected and the software is running:

• Open STM32CubeProgrammer or ST-Link Utility
• Select the STLINK-V3MINIE as the debug probe
• Access the memory viewer, peripheral registers, and debug console
• Use the Virtual COM port to monitor UART output from the target microcontroller By following these steps, you can fully view and interact with the ST3.0 interface for programming, debugging, and monitoring STM32 microcontrollers .