Solder Drop Configurations - STMicroelectronics X-NUCLEO-53L0A1 User Manual

X-NUCLEO-53L0A1 expansion board
Components
R60
PB1
U22
GPIO expander and 4 digit-7 segment display application
C14, C15
DISPLAY1
R24,R25, R26, R27, R29,
R31, R33, R36, R37, R38,
R39, R40, R41, R42, R44,
R47, R48, R50, R51, R52,
R55, R56, R57, R58, R59,
R61, R62, R63
U19, U21
3.3

Solder drop configurations

Solder drops allow the following configurations for X-NUCLEO-53L0A1 boards:
•
In case the developer wants to do an application with several expansion boards
superposed and:
–
–
•
In case the developer wants to connect satellites (see
–
–
–
10/16
Table 5. List of materials (continued)
Value
0
TPS3838K33
100nF
KHN40365AG1D
470
STMPE1600
there is a conflict on microcontroller port allocation, the GPIO1 can be outputted
on CN8/A4 (U17 fitted) of the Arduino connector. The default configuration is
GPIO1 is outputted on CN8/A2 (U14 fitted) of the Arduino connector.
there is a conflict on I2C addresses, the addresses of the STMPE1600 can be
modified.(default addresses A2,A1,A0: 000 and 001).
the VL53L0X interrupt of the left satellite board can be outputted on CN5/D9 (U10
fitted) or CN5/D8 (U11 fitted) of the Arduino connector. By default U10 and U11
are not fitted.
the VL53L0X interrupt of the right satellite board can be outputted on CN9/D4
(U15 fitted) or CN9/D2 (U18 fitted) of the Arduino connector. By default U15 and
U18 are not fitted.
the VL53L0X interrupts of left and right satellite boards, GPIO1_L and GPIO1_R,
can be shared with the VL53L0X interrupt on the main board, GPIO1, by fitting U7
and U8 solder drops. By default U7 and U8 are not fitted.
DocID029189 Rev 2
Reference Supplier
Kohon
Comments
Delay time setting (def = 10ms)
Push-button
TI Supervisory circuit
Supply decoupling capacitor
Segment current setting
GPIO expander for VL53L0X
ST XSHUT signals and
4 digit / 7 segment display
Figure 5):
UM2047