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Table 13. Bluetooth

Low Energy power selection

Reference Name Comment

SW6

BOOT0 switch

Switch to select the Bluetooth

Low Energy module Boot mode. By default

this switch is set to 0.

SW4, SW5

Debug switch

Switch used to connect the onboard ST-LINK to the Bluetooth

module debug

port. By default, ST-LINK is connected to the target MCU. Both switches must

not be ON at the same time.

To connect the onboard ST-LINK to the Bluetooth

module, set SW4 OFF and

SW5 ON.

SW3

Power switch

Bluetooth

module power selection

This switch chooses to power the Bluetooth

module using the 3.3 V coming

from the system or the Bluetooth

module USB connector, in case of

debugging or flashing.

Put the switch on the SYS position to select the system power.

7.8.3

MXCHIP EMW3080 (802.11 b/g/n compliant Wi‑Fi

module)

The M1 MXCHIP EMW3080 module is implemented on the top side of the B-U585I-IOT02A Discovery kit

board. This module is an embedded wireless internet connectivity device. The module uses the SPI (SPI2 of

STM32U585AI) interface to communicate with the MCU. The Wi‑Fi

module requires no operating system and

has a completely integrated TCP/IP stack that only requires AT commands to establish connectivity.

This module complies with FCC/CE certification.

Figure 18. EMW3080 module

UM2839

RF modules

UM2839 - Rev 4

page 25/54

ST B-U585I-IOT02A User Manual

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