OpenOCD
Serial Wire Debug (SWD)
Recently (11-02-20) I tried to test the SWD debug transport over a FT2232 based JTAG adaptor and over a Versaloon (based on STM32) adaptor.
Recently (11-02-20) I tried to test the SWD debug transport over a FT2232 based JTAG adaptor and over a Versaloon (based on STM32) adaptor.