mDBG调试器，具体请参看hackaday网站上的xplained yourself。

非常不建议手工焊接，费眼费手并且容易出错，查找硬件故障十分麻烦；建议使用嘉立创SMD贴片服务。

You'll need Atmel Studio.

For new board goto 1a, and for reprogramming goto 1b.

1a. Connect Xplained Yourself board to USB, Atmel Studio should show new tool (View>Available Atmel Tools): Atmel Mega DFU.  (if not goto 1b and check continuity in your board).

1b. Turn bootloader on by: press HWB button, press RST button, release RST, wait few seconds, release HWB.

2. Go into programming mode (RMB click on DFU), Select ATmega 32U4, and read signature.

3. Program Flash and EEPROM (in Memories tab) with the same protocol.

4. Reset board with RST button.

5. Here's your fresh, new debugger!