Table 4 shows the functions of the push buttons and switches on the board.
ITEM
DESCRIPTION
SW2 ON SOM
Evaluation kit ON/OFF button
• In Yocto Project, short press and long press will
only generate an interrupt, the usage is defined by
the application software.
• Prolonged depress (>5 sec) will force an immediate
hardware shutdown.
• If board is in the SHUTDOWN state, short press of
the button will restart (boot) the system.
• If board is in the STANDBY state, short press of the
button will bring the system out of standby (resume
operations, no boot).
SW3 ON SOM
Evaluation kit RESET button
• Button press will reset the system and begin a boot
sequence.
SW2 ON BB
Evaluation kit switch
• VOL+
SW3 ON BB
Evaluation kit switch
• VOL-
Table 4: i.MX 7ULP EVK board button operations
9
www.nxp.com
BUTTON FUNCTIONS