5: Carrier Board
Snapdragon 845 HDK Hardware Development Kit User Guide
20
Function
DIP Switch
Description
Notes
DSI1_SW_SEL
S2301-8
Select DSI1 data path
between display and
HDMI
Default route DSI1 to
display card
Default out of the box
configuration is OFF
DSI1 will be routed to
HDMI by turning on DIP
There is another DIP switch S2302 on the north top side of HDK845 carrier board. The 8-bit switch allows the
user to control the system configuration and boot options.
Table 5-3 Dip Switch S2302 HW / SW configuration
Function
DIP Switch
Description
Notes
CHARGE_DISABLE
S2302-1
Disable charge when DIP
switch turned on
Default out of the box
configuration is OFF
which enables system
charge from USB
Note:
make sure turn on
this switch when DC-12V
input and USB are both
present
N/C
S2302-2
NA
Not used in HDK845
HUB_RESET_SW
S2302-3
Enables hardware reset
from general
switch(J2204) when DIP
switch turned on
Default out of the box
configuration is OFF
Note:
Default HUB reset
control is from s/w,
hardware rework is
needed to enable this
function
MSM_PS_HOLD
S2302-4
Enables the
JTAG_PS_HOLD mode
when DIP switch turned
on
Default out of the box
configuration is OFF
AMOLED_LCD_SEL
S2302-5
Select power supplier
configuration between
AMOLED and LCD
Default out of the box
configuration is OFF
Note:
LCD type display
panel is supported by
default
QUP0_SPI_SEL
S2302-6
Select QUP0 path
between NFC(J2401) and
Education(J2801)
Default out of the box
configuration is OFF
Note:
QUP0 is default
QUP15_SPI_SEL
S2302-7
Select QUP15 path
between display card
(J1301) and onboard
fingerprint(J3102)
Default out of the box
configuration is OFF.
Note:
QUP15 is default
routed to onboard
fingerprint
