ST X-NUCLEO-S2868A2, User Manual

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Table 4. S2-LP interface (optional) with STM32 Nucleo board
S2-LP signal Default STM32 port Optional STM32 port
GPIO0 PA0
PC1
To use the optional connection, mount R18, unmount R12
CSn PA1
PB6
To use the optional connection, mount R9, unmount R13
CLK PB3
PA5
To use the optional connection, mount R6, unmount R11
nS PB4
PA9
To use the optional connection, mount R7, unmount R22
SDN PA8
PB10
To use the optional connection, mount R19, unmount R10
To use the optional connections, modify the firmware on the basis of the STM32 resources used.
3.3 Current measurement
To monitor the X-NUCLEO-S2868A2 expansion board power consumption, use jumper JP1: connect an ammeter
probe between the connector pins 1 and 2 for measurements.
3.4 X-NUCLEO-S2868A2 component placement details
The figure below shows the component placement on the X-NUCLEO-S2868A2 expansion board.
Figure 3. X-NUCLEO-S2868A2 on-board device placement
1. Arduino UNO R3 connector
2. Arduino UNO R3 connector
3. S2-LP
4. EEPROM
UM2638
Current measurement
UM2638 - Rev 1
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