J-Link OB ARM/STM32 debugger emulator programming unit downloader-for j-link replace v8 SWD

this module is :JLINK ARM OB ARM/STM32 simulators downloader super-small SWD interface

 this module is 4 wire system:SWDIO,SWCLK,GND ,VCC four interface

IDE Support: IAR, Keil;

only  support SW  2 wire debugging;

work stability, no have lost firmware phenomenon;

only U disk size, convenient to carry;

Use Mirco USB interface;

interface to simplify, with only three lines, with high-speed debugging, download;

The 3.3V output can also supply power to the target board, which is convenient for user debugging and program download.

The onboard self-recovery fuse avoids the harm caused by short circuit and makes the board safer.

Download: https://pan.baidu.com/s/1JARbC8vHN_O4xkmxmTGaKQ     (code: y2dq)