1. support the full range of STM32 SWD debugging interface, a simple 4-wire interface (including power), fast, stable; interface definition housing directly marked! Do not need to read the manual; 2. support the full range of STM8 SWIM download debugging (common development environments such as IAR, STVD etc. are supported); supported software versions as follows: ST-LINK Utility 2.0 and 4.2.1 above STVD and above STVP 3.2.3 and above IAR EWARM V6.20 and above IAR EWSTM8 V1.30 and above KEIL RVMDK V4.21 and above 3. support for automatic firmware upgrades to ensure follow-up support ST products. The factory firmware has been upgraded to the latest V2.J17.S4; 4. increase the 5V power output, the output I / O ports are protected afraid of operational errors caused by ST-LINK V2 damage! 5. the interface easy to use copper gilded horns seat pitch of 2.54, with 20CM DuPont line, the line can respond to different target sequence, flexible wiring; 6. the use of U disk aluminum housing protects the motherboard, easy to carry, is not afraid of static electricity, afraid to fall throw touch. 7.with data package, containing: (e-file, disk, and network support Baidu QQ mailbox to send) 1, STLINK / V2 driver; 2, KEIL MDK (4.60) development environment (and other common development environments) 3, IAR STM8 (1401) development environment (and other common development environments) 4, STVD STM8 development environment (and other common development environments) 5, a number of classic STM32 information (including a large number of source code examples and video tutorials) 6, a number of classic STM8 information (including a large number of source code examples and learning experience) _x000D_