Data Sheet
4 Board peripherals
Figure 3.
User interface and peripheral components
4.1 Buttons
The board has two tactile switch buttons
:
● Power button:
This controls board power
.
If only the USB
-
C power port is connected
,
you must press this button to
boot the board
(
press
fi
rmly
).
You can power
-
o
ff
the board by pressing it again
.
If the USB OTG port is connected to
power
,
then the board boots automatically and this button instead reboots the board
(
see section 5
.
1 Power supply
).
● User button:
This does nothing by default
.
You can program your own behavior with GPIO2
("
gpio389
";
active low
).
4.2 USB-C ports
The board has two USB ports
:
● USB-C power:
This is for power input only
.
● USB-C OTG:
This supports USB 2
.
0 and is a dual
-
role port
,
allowing the board to operate as a host
(
such as when
you connect a keyboard
)
or as a peripheral
(
such as when you connect to a computer to
fl
ash the board
).
This can
also power the board for
"
always on
"
operation
—
the board will not fully shut down
(
see section 5
.
1 Power supply
).
4.3 LED
Table 5.
Description of the on
-
board LED colors
Dev Board Mini datasheet v1
.
1
G650
-
03324
-
01
LED color
Meaning
Orange
The system is booting up
.
If it remains orange more than a minute
,
there might be a boot failure
(
except
when booting for the
fi
rst time after a
fl
ash
,
which takes a few minutes
).
Green
The system is booted
(
ready for login
).
Red
The system is in fastboot mode
(
ready to
fl
ash
).
Coral
.
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