15.2
Solder bridges
The jumper functions and their default status are described in
Table 22.
Solder bridges configuration
SB name
Function
Comment
SB1
ON
AGND to GND connection near digital
power buck-boost for analog
measurements
Connect AGND to GND plan near T3
OFF
Isolate AGND from GND plan near T3
SB2
ON
PC4 connection to JOYSTICK_LEFT
Connect PC4 of STM32 to joystick
OFF
Isolate PC4 from the joystick, PC4 can be used for any
other application at the CN8 extension connector.
SB3
ON
PB2 connection to JOYSTICK_RIGHT
Connect PB2 of STM32 to joystick
OFF
Isolate PB2 from the joystick, PB2 can be used for any
other application at the CN8 extension connector.
SB4
ON
PB10 connection to JOYSTICK_UP
Connect PB10 of STM32 to joystick
OFF
Isolate PB10 from the joystick, PB10 can be used for
any other application at the CN8 extension connector.
SB5
ON
PC13 connection to
JOYSTICK_SELECT
Connect PC13 to JOYSTICK
OFF
Isolate PC13 from JOYSTICK, PC13 can be used for
any other application at the CN9 extension connector.
SB6
ON
PC5 connection to JOYSTICK_DOWN
Connect PC5 of STM32 to JOYSTICK
OFF
Isolate PC5 from JOYSTICK, PC5 can be used for any
other application at the CN9 extension connector.
SB7
ON
Red power LED LD1 cathode
connection
Connect red power LED to inversed Buck
OFF
Isolate red power LED from inversed Buck
SB8
ON
Blue power LED LD1 cathode
connection
Connect the blue power LED to inversed Buck
OFF
Isolate blue power LED from inversed Buck
SB9
ON
Green power LED LD1 cathode
connection
Connect the green power LED to inversed Buck
OFF
Isolate green power LED from inversed Buck
SB10
ON
PF0 connection to the CN9 extension
connector
Connect PF0 to extension connector CN9
OFF
Isolate PF0 from extension connector CN9
SB11
ON
PF1 connection to the CN9 extension
connector
Connect PF1 to CN9 extension connector
OFF
Isolate PF1 from CN9 extension connector
SB12
ON
PC3 connection to
BUCKBOOST_USBPD_EN
Connect PC3 to BUCKBOOST_USBPD_EN
OFF
Isolate PC3 from BUCKBOOST_USBPD_EN, PC3 can
be used for any other applications at the CN8
extension connector.
SB13
ON
PA0 secondary connection
(RESERVED)
RESERVED
OFF
Isolate PA0 from BUCKBOOST_I_IN_SENSE
SB14
ON
PA2 connection to
BUCKBOOST_I_IN_AVG
Connect PA2 to BUCKBOOST_I_IN_AVG
OFF
Isolate PA2 from BUCKBOOST_I_IN_AVG, PA2 can
be used for any other applications at the CN8
extension connector.
SB15
ON
VBAT connection to VDD
Connect VBAT to VDD
OFF
Isolate VBAT from VDD
UM2577
Solder bridges
UM2577
-
Rev 2
page 41/54