20 pin SWD/JTAG J-Link to 10 pin (0.1" and 0.05") reconfigurable Cortex-M header with power supply and TagConnect compatibility, as well as with a reset button. (Info about about J-Link Commander and Segger RTT is also given.)
debugger adapter arm cortex-m jlink breakout programmer diy swd cortex kicad rtt jtag oshw breakout-board j-link seggerrtt tag-connect segger-rtt
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Updated
Dec 30, 2025