This is a SWD to JTAG interface adapter board based on JLink&STlink. Please be sure to check the model you are using before making a board. The main thing is to look at the SWD interface line sequence.
It is not a big problem if the signal line is wrong, but if the power supply is connected wrongly, it will be a big problem!
Important things to say three times: Be sure to check your power supply and signal lines! Be sure to check your own power and signal cables! Be sure to check your own power and signal cables!
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