The ST-LINK/V2 is an in-circuit debugging and programming for the microcontroller families STM8 and STM32 . The single wire interface module (SWIM) and JTAG/serial wire debugging (SWD) interfaces are used. To communicate with any STM8 or STM32 microcontroller located on an application board the SWIM (single wire interface module) and SWD (JTAG/serial wire debugging interfaces) are used. It has a direct firmware update feature supported as well as status LED which blinks during communication with the PC. It has USB 2.0 full speed compatible interface.
