[Physical product verified] JLink V9 Mini V1.0

Recently I have been busy participating in ART-Pi and Tuya Phase 2, so I don’t have much time, so I won’t say too much unnecessary nonsense.

I asked me to seal this board with a plastic cover. The heat shrink tube I bought this time was not good, and the tube was a bit dirty! The actual board is more beautiful than the picture!

Copy the schematic to: https://oshwhub.com/miwang186/mini-jlink-v9 

                 and https://github.com/konosubakonoakua/Various_MCU_Debugger_DIY

I just repainted the PCB and tested the speed of 12M in SWD mode and 15M in JTAG mode.

The virtual serial port can be opened, but there is a problem with the test communication . I checked several times and found no problem with the line. In view of the fact that this multiplexed virtual serial port is of little use, and the virtual serial port and JTAG cannot be used at the same time . I will ignore this issue for the time being, but if there are heroes who understand it, you can give me some advice, thank you!

At present , the most useful SWD and CDC virtual serial port burning device I have tested is the JLINK OB With CDC version I made.

Much easier to use than STLink V2.1! ! !

Link: https://oshwhub.com/duyes/jlink_gd32

Those who are interested can take a look

The picture below is a test screenshot:

Burning method: Use J-Flash or other software to burn bootloader.bin through SWD, insert Jlink V9 Mini into the computer USB, open J-Link Commander and you will be prompted to upgrade. Once the upgrade is completed, you can use it!