RIALTO SBC/Interfaces and Connectors/DWS

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History
Issue Date Notes
2024/01/12 First documentation release



Wifi/Bluetooth interface[edit | edit source]

DWM and DWS are DAVE WiFi addons that provide WiFi 802.11 bgn and Bluetooth connectivity.

Description[edit | edit source]

The Wifi/Bluetooth interfaces are available on RIALTO SBC at the connector J46.

J46 is a 30-pins 0.50mm Pitch SlimStack™ Receptacle. This connector is dedicated to the DWM/DWS optional add-on module.


DWS connector

Signals[edit | edit source]

The following table describes the interface signals:

Pin# Pin name Pin function Pin Notes
1, 2 5V Power supply
3, 4 3.3V Power supply
5, 6, 9, 10, 19 DGND Ground
7 TIWI_MMC2_CMD
8 TIWI_MMC2_CLK
11 TIWI_MMC2_DAT0
13 TIWI_MMC2_DAT1
15 TIWI_MMC2_DAT2
17 TIWI_MMC2_DAT3
21 UART2_RX Used only for BT peripheral
23 UART2_CTS Used only for BT peripheral
24 TIWI_BT_F5 Used only for BT peripheral
25 UART2_TX Used only for BT peripheral
26 TIWI_BT_F2 Used only for BT peripheral
27 UART2_RTS Used only for BT peripheral
28 TIWI_IRQ
29 TIWI_BT_EN Used only for BT peripheral
30 TIWI_EN
12, 14, 16, 18, 20, 22 N.C. Not connected

WiFi[edit | edit source]

Device mapping[edit | edit source]

The WiFi peripheral is mapped to the corresponding wlan<0> device in Linux. The network peripheral is visible under the ifconfig network configuration utility.

Device usage[edit | edit source]

The peripheral uses the standard kernel interface and network protocol stack.

Bluetooth[edit | edit source]

Device mapping[edit | edit source]

The BT peripheral is mapped to the /dev/ttymxc1 serial port in Linux. It can be mounted as an hci device with the hci tools commands.

Device usage[edit | edit source]

The peripheral is used by the standard kernel interface and BlueZ protocol stack.