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6.12 External Fan Connection
The SD 600eval board can drive 5V or 12V DC fan. The power for driving external Fan is available on the Low Speed Expansion
connector.
6.13 UART
The 96Boards CE specification calls for support for one SoC UART and an optional second UART, both to be routed to the Low
Speed Expansion Connector.
The SD 600eval meets these requirements by routing APQ8064 GSBI 1 port as full UART and GSBI 7 port as debug UART, to low
speed expansion connector.
6.14 Buttons
The 96Boards CE specification calls for the presence of button switch to manually Power up/down & Reset the board.
The SD 600eval meets the board reset requirement. The power button SW2 can be used to sleep/wakeup the board. The reset
button SW3 is used to reset the board.
Additionally, SD 600eval also provides a user configurable switch SW1 on board.
6.14.1 Power Button
The push-button SW2 serves as the sleep/wakeup button. Upon applying power to the board, the boot process will start. Once
the board boot process is completed, user can go to Power
off selection on Android UI by pressing the button for more than 5
seconds. If the board is in a sleep mode, pressing the power button will wake up the board
.
(Above functionality of power button is tested over Android release)
6.14.2 Reset Button
The on board SW3 push-button serves as a reset button. Button press with duration of more than 10 seconds will cause a
system reset.
6.15 LED Indicators
The 96Boards CE specification calls for six LEDs to be implemented on the board. The specification defines the LEDs color and
mechanical location on the board.
Two activity LEDs:
•
Wi-Fi activity LED is a surface mount Yellow color LED, 0603 size. The SD 600eval board drives this Yellow LED via
MPP_07 (PMIC GPIO).
• BT activity LED
is a surface mount Blue color LED, 0603 size. The SD 600eval board drives this Blue LED via MPP_08 (PMIC
GPIO).
Four User-LED’s:
The four user LEDs are surface mount Green LED, 0603 size, located next to the two USB type A connector and labeled
‘USER LEDS 3 2 1 0’.
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