Ublox EVK-JODY-W2, User Manual

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EVK-JODY-W2 - User guide
UBX-19027118 - R06 Contents Page 18 of 25
C1 - Public
3.4 Bootstrapping
JODY-W2 supports the following host interface combinations:
• SDIO-UART mode: Commands and data for the Wi-Fi traffic are transferred through the SDIO bus
to the module. The Bluetooth traffic uses the high-speed UART interface.
• SDIO-SDIO mode: Commands and data for the Wi-Fi and Bluetooth traffic are transferred through
the SDIO bus to the module.
DIP switch SW503 is used on the EVB to define the boot mode and the physical interfaces used for
Wi-Fi and Bluetooth communication. Set each switch ON to pull the configuration signal low (GND,
logic level “0”), and OFF to pull it high (logic level “1”).
Figure 13: Boot and host interface configuration
Table 8 describes the DIP switch positions for configuring the boot mode and host interface options.
Boot mode CON_2 CON_1 CON_0 Description
SDIO-UART - OFF ON Wi-Fi through SDIO (J203), Bluetooth through USB-to-UART
(J205) or UART (J305)
SDIO-SDIO - OFF OFF Wi-Fi and Bluetooth through SDIO (J204)
Table 8: Boot mode selection options
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The UART interface for Bluetooth can be accessed either directly through J305, or through the
USB type-C connector J205 and USB-to-UART bridge. For further information about the
Bluetooth UART interface, see also
Bluetooth host interface .
3.5 SDIO Interface
The boards can be connected through a micro or full-size SDIO connector for Wi-Fi communication
with the host system. The SDIO connector can optionally be used for Bluetooth. The SDIO host
interface connector
J204 is shown in Figure 14 .