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3.2 Power Supply
The baseboard can operate with a single 12V DC power supply.
Fig. 3.2: 12V Power connector
Power can be controlled manually from the board using the “
Power
” control buttons and switches, located on the lower
right side of the board (see
3.1 Evaluation Board Overview
).
Depending on the setting of “
Normally On / Normally Off
” switch the board will boot as soon as it receives power.
3.3 Control Buttons and Switches
The control buttons provide the following functionality:
• “
Power
” toggles the module power supply
• “
Reset
” triggers a module reset
• “
Batlow
”, “
Sleep
” and “
Wake
” are routed to GPIOs on the Q7 module
Several slide switches are located on the lower left:
• “
LID
” is routed to a GPIO on the module, simulates lid open/close.
• “
Normally On / Normally Off
”, as described above, sets the state after power loss.
• “
BIOS Disable / Normal Boot
” forces SD card boot or the normal boot order, respectively.
RK3399-Q7 User Manual
© Theobroma Systems Design und Consulting GmbH
Release v0.2-3-g574c114
Page
7
Summary of Contents for RK3399-Q7
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