SBC Axel SBC/Interfaces and Connectors/DWM
History | |||
---|---|---|---|
ID# | Issue Date | Notes | |
07/04/2021 | First DESK release |
DWM[edit | edit source]
Description[edit | edit source]
J24 is a 30-pins 0.50mm Pitch SlimStack™ Receptacle. This connector is dedicated to the DWM optional add-on module.
The module is built around an LS Research TiWi-BLE Integrated Transceiver Modules for WLAN 802.11 b/g/n and Bluetooth. The module implements the necessary PHY/MAC layers to support WLAN applications in conjunction with a host processor over a SDIO interface. The module also provides a Bluetooth platform through the HCI transport layer. Both WLAN and Bluetooth share the same antenna port.
Signals[edit | edit source]
The following table describes the interface signals:
Pin# | SOM Pin# | Pin name | Pin function | Pin Notes |
---|---|---|---|---|
1, 2 | - | 5V | ||
3, 4 | - | 3.3V | ||
5, 6, 9, 10, 19 | - | DGND | Ground | |
7 | J10.69 | TIWI_MMC2_CMD | ||
8 | J10.71 | TIWI_MMC2_CLK | ||
11 | J10.61 | TIWI_MMC2_DAT0 | ||
13 | J10.63 | TIWI_MMC2_DAT1 | ||
15 | J10.65 | TIWI_MMC2_DAT2 | ||
17 | J10.67 | TIWI_MMC2_DAT3 | ||
21 | J10.47 | UART2_RX | Used only for BT peripheral | |
23 | J10.55 | UART2_CTS | Used only for BT peripheral | |
24 | J10.39 | TIWI_BT_F5 | ||
25 | J10.49 | UART2_TX | Used only for BT peripheral | |
26 | J10.41 | TIWI_BT_F2 | ||
27 | J10.59 | UART2_RTS | Used only for BT peripheral | |
28 | J10.43 | TIWI_IRQ | ||
29 | J10.99 | TIWI_BT_EN | ||
30 | J10.45 | TIWI_EN | ||
12, 14, 16, 18, 20, 22 | - | N.C. | Not connected |
Device mapping[edit | edit source]
The WiFi peripheral is mapped to the corresponding wlan<X>
device in Linux. The network peripheral is visible under the ifconfig
network configuration utility.
Device usage[edit | edit source]
The peripheral is used the standard kernel interface and network protocol stack.