Hello:
I'm trying to program the LPCXpresso54628 with Flash Magic Software.
The first Time I could to program the board.
But, the next time when I wanted to program again, Flash Magic show error:
Operation failed. Failed to connect. Try disconnecting and reconnecting the board. Make sure the board appeart in the devices manager.
Is the board still shown in the drop down list in section one?
Did you program it with firmware that disabled SWD? If yes then you won't be able to reprogram it again.
Andy