SWD-dat

• st-link-dat

• https://static.docs.arm.com/ihi0031/d/debug_interface_v5_2_architecture_specification_IHI0031D.pdf
• https://www.arm.com/files/pdf/Serial_Wire_Debug.pdf

https://stm32-base.org/guides/connecting-your-debugger.html

Debug

• If SWD Serial-Wire is not enable, add reset line to force enter into debug mode

• USB-TTL-dat

• stm32-dat