Thank you MM and Piranha.My cheap Chinese STLINKv2 does not implement the SWO function.This does not hurt much since my target's STM32F030 also does not implement the SWO function.I foresee this target having no stop/sleep modes but I will add a rese...

Hello .I see you mention a 3-wire SWD interface.I assume you mean Ground, Data and Clock with pull ups on the target.I've seen no examples that the leave out VCC yet.In PIC world the debugger's transmitter requires VCC supplied from the target board....

Thank you Tesla.I would have been quite frustrated trying to find that type of technical documentation on the ST Micro site.This is the information I needed. I can now start a schematic.I've been a PIC guy for 20 years but, now I'm moving to ST becau...