(The on-board LPC3154 has some encryption key set and LPCXpressoWIN.enc
is encrypted.)

$ lsusb | grep NXP
Bus 003 Device 011: ID 0471:df55 Philips (or NXP) LPCXpresso LPC-Link

$ dfu-util -v -v -v -R -D /opt/lpc/lpcxpresso/bin/LPCXpressoWIN.enc

dfu-util 0.7

Copyright 2005-2008 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2012 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to dfu-util@lists.gnumonks.org

dfu-util: Invalid DFU suffix signature
dfu-util: A valid DFU suffix will be required in a future dfu-util release!!!
Deducing device DFU version from functional descriptor length
Opening DFU capable USB device...
ID 0471:df55
Run-time device DFU version 0100
Claiming USB DFU Runtime Interface...
Determining device status: 
state = dfuIDLE, status = 0
dfu-util: WARNING: Runtime device already in DFU state ?!?
Claiming USB DFU Interface...
Setting Alternate Setting #0 ...
Determining device status: 
state = dfuIDLE, status = 0
dfuIDLE, continuing
DFU mode device DFU version 0100
Device returned transfer size 2048
Copying data from PC to DFU device
Download	[                         ]   0%            0 bytes
Download	[=                        ]   6%         2048 bytes
Download	[===                      ]  13%         4096 bytes
Download	[====                     ]  19%         6144 bytes
Download	[======                   ]  26%         8192 bytes
Download	[========                 ]  32%        10240 bytes
Download	[=========                ]  39%        12288 bytes
Download	[===========              ]  45%        14336 bytes
Download	[=============            ]  52%        16384 bytes
Download	[==============           ]  59%        18432 bytes
Download	[================         ]  65%        20480 bytes
Download	[==================       ]  72%        22528 bytes
Download	[===================      ]  78%        24576 bytes
Download	[=====================    ]  85%        26624 bytes
Download	[======================   ]  91%        28672 bytes
Download	[======================== ]  98%        29192 bytes
Download	[=========================] 100%        29192 bytes
Download done.
Sent a total of 29192 bytes
state(8) = dfuMANIFEST-WAIT-RESET, status(0) = No error condition is present
Done!
dfu-util: can't detach
Resetting USB to switch back to runtime mode

$ lsusb | grep NXP
Bus 003 Device 012: ID 1fc9:0009 NXP Semiconductors
