ST X-NUCLEO-IKS02A1, Руководство пользователя

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Table 2. Device I²C address
Device Solder bridge (non default) I²C address default
IIS2DLPC SB8 32h
IIS2DLPC
SB9
(1) 30h
ISM330DHCX SB15 D6h
ISM330DHCX
SB17
(1) D4h
IIS2DMC -- 3Ch
1. Not mounted by default.
Other default solder bridges are: SB40 to SB48 (STM32 Nucleo GPIO INT), SB23, SB25, SB39, SB32.
Other not mounted by default solder bridges are: SB37, SB50, SB51, SB52, SB53, SB54.
2.2 I²C bus connection modes
The ISM330DHCX I²C sensor hub can be used as I²C master of other devices (slaves) connected to an I²Caux
bus.
The sensors on the
X-NUCLEO-IKS02A1 expansion board can thus be connected in five different I²C bus modes
(with or without the ISM330DHCX sensor hub).
Mode 1: standard I²C bus connection (all sensors)
In standard I²C mode, all devices are connected to an external main board via the same I²C bus.
The board configuration is:
•
JP7: 1-2 3-4 (I²C1 = I²C2, I²Cx=GND)
• JP8: 1-2 3-4 (I²C1 = I²C2, I²Cx=GND)
Figure 3. X-NUCLEO-IKS02A1 standard I²C
STM32 Nucleo board
Arduino UNO R3
ST morpho
I²C2
ISM330DHCX
IIS2DMC
IIS2DLPC
DIL 24
Mode 2: ISM330DHCX I²C sensor hub (all sensors)
In sensor hub I²C mode, the ISM330DHCX is connected to an external main board by an I²C bus; all other
devices are slaves connected to ISM330DHCX via I²Caux, except IIS2DLPC .
The board configuration is:
•
JP7: 2-3 (I²C1 = I²Cx)
UM2633
I²C bus connection modes
UM2633 - Rev 1
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