Re: Unable to debug with ST-LinkV2-1
I also had this error while testing systemworkbench for production work. It came and went at unpredictable times, what leads me to believe this is some sort of USB/hardware thing going on.
Sometimes it helped flashing firmware to the stlink, at other times it did not.Rebooting sometimes helped, sometimes it did not. Fiddling with SWD/JTAG settings sometimes helped. I also tried modifying the OpenOCD scripts, but i could not pinpoint the exact cause. It might even have been an sub-par (USB) cable or something. In any event, it's working for the time being.