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Can't start J-Link GDB server on TWR-K70F120M, KDS 3.0

Question asked by Kirk Davis on Dec 1, 2015
Latest reply on Dec 1, 2015 by Carlos_Mendoza

I am trying to use KDS 3.0 with a TWR-K70F120M and TWR-SER tower system.  I can't get the J-Link GDB server started.  I always get the "No emulators connected via USB" error.  I have two USB connections on the tower system, and they show up in the Windows 7 Device Mgr as OSBDM/OSJTAG - Debug Port ( and OSBDM/OSJTAG - CDC Serial Port (,  I have worked through the user, quickstart, and troubleshooting guides, checked the jumpers, ran the P&E Firmware Updater utility, etc., but always get the same results.  Any ideas?