I killed my Tiva C-Series LaunchPad. Can anyone rescue it?
I, too, once destroyed my Tiva C-series dev board.  Maybe the high inductance of motors drew current even when the output stage of the uC pins tried to protect itself.  I can't see what is wrong in the picture of the board you posted. You can spend hours debugging this, and perhaps someone knows exactly what you did.  However, the board is $25 and ships next day from digikey.