Features:

• The interface is simplified, and 4-wire SWD interface is adopted: vcc, swdio, swclk, gnd, which can download simulation at high speed
• It is compatible with the traditional V8 emulator and has the same functions
• Universal USB interface is used for easy use
• Support 3.3V output, maximum output 300MA current, convenient for users to debug and download the target board
• The new board is equipped with self-recovery fuse, effective short circuit protection, and more safe commissioning
• ESD protective device, more stable
• Transparent shell packaging
• Firmware is stable and can be upgraded automatically without firmware curruption 
• The size of USB flash disk is convenient for the project to carry on business
• Four wires of SWD interface:
  • VCC = 3.3V
  • GND
  • SWDIO = TMS/DIO
  • SWCLK = TCK /CLK
• Supported kernels:
  • All ARM7911
  • Cortex-M0, M1, M2, M3, M4, A5, A8, A9 and other embedded single-chip computers with SWD interface
• Connection mode: SWD mode
• Programming function: can burn and write FLASH ROM, EEPROM, AFR, etc.
• Simulation function: It supports various debugging methods such as full-speed operation, single-step debugging, breakpoint debugging, and can view IO status, variable data, etc.
• Programming performance: USB2.0 interface is used for SWD download, and the download speed is fast!
• Simulation performance: USB2.0 interface is used for simulation debugging, single-step debugging, breakpoint debugging, and fast response