i.MX 6UltraLite EVK Board Hardware User’s Guide, Rev. 1, 03/2016
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Freescale Semiconductor, Inc.
Specifications
When the developer is using the camera module, attention must be paid to the installation, as shown in the
following figure.
Figure 13. Direction of the camera
2.17
User interface switches
There are three user interface switches on the EVK board. Their functionality is as follows.
2.17.1
ON/OFF button (SW2101)
SW2101 is the ON/OFF button for i.MX 6UltraLite EVK board. The function of this button is listed below.
•
In Yocto Project, short press and long press will only generate an interrupt, the usage could be
defined by upper 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).
2.17.2
Reset
There are two ways to reset the i.MX6UltraLite EVK board:
1. Hardware way to reset system using SW2102:
— Pressing the RESET button (SW2102) in the Power On state will force to reset almost all the
power rails except the VDD_SNVS on the i.MX6UltraLite EVK board. The i.MX6UltraLite
applications processor will be immediately turn off, and reinitiate a boot cycle from the
Processor Power Off state.
