Kontron KTT30-mITX - Manual (Page 15)

KTD-N0857-A Page 12 Debug/Design Tools
KTT30/mITX Users Guide
4 Debug/Design Tools
In order to change software features, to repair a corrupted bootloader or for service purpose, the two
connectors UART3 (J3) Serial port and USB Client (J12) are used.
If the board does not boot up or in the case of custom firmware usage (for example the replacement of the
KONTRON bootloader) you can overwrite the content of the SPI
TM flash. The following parts are necessary:

A desktop PC with a Windows ® or Linux ® operating system

A special NVIDIA ® USB driver (only Windows ® )

One standard USB cable (Type A plug to micro-B plug)

Two pushbuttons or one pushbutton and one jumper or something similar

An actual bootloader image file
For the next step you should create a link from the KTT30 client port to a desktop PC with the standard USB
cable. Make sure that you have the power cable plugged-in. Then connect the pushbuttons or a push-
button/jumper combination to the pin header J37 (button or jumper) and the Front Panel Header J7
(button).
To set the board into recovery mode, first the pushbutton J37 (if you use two buttons) and then the
pushbutton J7 must be pressed until the LEDs go on.
Install the special USB driver on the desktop PC (if not already done). Open the device manager to control
the driver activity. After some seconds you must see the entry
USB Client Port Driver (CPD) . The last step
includes the download of the bootloader image file with NVIDIAs ® NVFLASH tool. For further details see the
'KTT30/mITX Software Guide' chapter 'NVFLASH Download Tool'.