ORCA SBC/Interfaces and Connectors/DWM
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| History | |||
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| Issue Date | Notes | ||
| 2021/12/10 | First release | ||
Contents
DWM/DWS 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 DWM interface available on the Evaluation Kit at the connector J2.
J2 is a 30-pins 0.50mm Pitch SlimStack™ Receptacle. This connector is dedicated to the DWM/DWS optional add-on module.
Signals[edit | edit source]
The following table describes the interface signals:
| Pin# | SOM 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 | J15.18 | TIWI_MMC2_CMD | ||
| 8 | J15.16 | TIWI_MMC2_CLK | ||
| 11 | J15.20 | TIWI_MMC2_DAT0 | ||
| 13 | J15.22 | TIWI_MMC2_DAT1 | ||
| 15 | J15.24 | TIWI_MMC2_DAT2 | ||
| 17 | J15.26 | TIWI_MMC2_DAT3 | ||
| 21 | J15.114 | UART2_RX | Used only for BT peripheral | |
| 23 | J15.110 | UART2_CTS | Used only for BT peripheral | |
| 24 | J15.36 | TIWI_BT_F5 | Used only for BT peripheral | |
| 25 | J15.114 | UART2_TX | Used only for BT peripheral | |
| 26 | J15.38 | TIWI_BT_F2 | Used only for BT peripheral | |
| 27 | J15.116 | UART2_RTS | Used only for BT peripheral | |
| 28 | J15.56 | TIWI_IRQ | ||
| 29 | J15.34 | TIWI_BT_EN | Used only for BT peripheral | |
| 30 | J15.32 | 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<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.
Bluetooth[edit | edit source]
Device mapping[edit | edit source]
The BT peripheral is mapped to the /dev/ttymxc2 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.
