UNICA SBC/Interfaces and Connectors/M.2
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Contents
M.2 WiFi/BT[edit | edit source]
The M.2 connector supports an add-on providing WiFi and Bluetooth connectivity.
Description[edit | edit source]
The Wifi/Bluetooth interfaces are available on the UNICA SBC at the J11 connector.
J11 is a M2. NGFF standard connector (key-E ). This connector is dedicated to a M.2 wifi module commonly available on the market.
Signals[edit | edit source]
The M.2 connector uses the standard interface signals.
- Wifi subsystem has an SDIO interface operating at 1V8 voltage level
- BT subsystem has an UART interface operating at 3V3 voltage level
WiFi[edit | edit source]
Device mapping[edit | edit source]
The WiFi peripheral is mapped to the corresponding xlan<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/ttyxxx serial port in Linux. It can be mounted as an hci device with the hci tools commands.
Device usage[edit | edit source]
The peripheral uses the standard kernel interface and the Bluetooth protocol stack.
