User Manual

element14 is a trademark of Premier Farnell plc 23

While the four user LEDS can be over written and used as desired, they do have

specific meanings in the image that is shipped with the board once the Linux kernel

has booted.

•

USER0

is the heartbeat indicator from the Linux kernel.

•

USER1

turns on when the microSD card is being accessed

•

USER2

is an activity indicator. It turns on when the kernel is not in the idle loop.

•

USER3

turns on when the onboard eMMC is being accessed.

7. A Booted System

a. The board will have a mouse pointer appear on the screen as it enters the

Linux boot step. You may have to move the physical mouse to get the mouse

pointer to appear. The system can come up in the suspend mode with the HDMI

port in a sleep mode.

b. After a minute or two a login screen will appear. You do not have to do anything

at this point.

c. After a minute or two the desktop will appear. It should be similar to the one

shown in

Figure 16

. HOWEVER, it will change from one release to the next, so

do not expect your system to look exactly like the one in the figure, but it will be

very similar.

d. And at this point you are ready to go!

Figure 16

shows the desktop after booting.

Figure 16

Desktop Screen