Guide: Connecting your debugger | STM32-base project
https://stm32-base.org/guides/connecting-your-debugger.html
WebConnecting via SWD header. The easiest way to connect your development board to your debugger is by using the 4-pin SWD header, if present. This header is usually a male dupont header, but female headers are also used. The header exposes a ground pin, a +3.3V pin, a clock pin, and a data pin.
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