System Control Buttons

The phyCORE-i.MX7 development kit provides a selection of buttons to perform power related functions.

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Button Functions

Button

Description

Details

S2

System Controller

  • Hard power down with long press

  • Power up if system powered down

Long Press : Holding the power button for a ‘long press’ while the phyCORE-i.MX7 is in the RUN mode will transition the module to the low power SNVS mode.

Short Press: When in SNVS mode, a short press of the button will transition the phyCORE-i.MX7 back to RUN mode and turn ON the board.

S3

Reset

Either pressing the S3 reset button or triggering a software reset via the X_nWDOG_RST pin will result in the supervisor asserting X_PMIC_PWRON, which will in turn power cycle the PMIC and cause a reset by cycling power to the processor.