WPANUSB sample¶
Overview¶
This application exports ieee802154 radio over USB to be used in other OSes such as Linux. For Linux, the ieee802154 stack would be implemented using the Linux SoftMAC driver.
Requirements¶
- a Zephyr WPANUSB enabled board (such as the nRF52840-PCA10056) connected via USB to a Linux host.
- WPANUSB kernel driver (in the process of being open sourced)
- IWPAN host tools at [http://wpan.cakelab.org/releases/](http://wpan.cakelab.org/releases/)
Building and Running¶
There are configuration files for various setups in the
samples/net/wpanusb directory:
prj.conf- This is the standard default config. This can be used by itself for hardware which has native 802.15.4 support.
overlay-cc2520.conf- This overlay config enables support for CC2520
Build the WPANUSB sample like this:
west build -b <board to use> samples/net/wpanusb -- -DCONF_FILE=<config file to use>
Example building for the Nordic nRF52840 Development Kit:
west build -b nrf52840_pca10056 samples/net/wpanusb
west build -t run
When connected to Linux with wpanusb kernel driver, it is recognized as:
...
T: Bus=01 Lev=02 Prnt=02 Port=00 Cnt=01 Dev#= 3 Spd=12 MxCh= 0
D: Ver= 1.10 Cls=ff(vend.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
P: Vendor=2fe3 ProdID=0101 Rev=01.00
C: #Ifs= 1 Cfg#= 1 Atr=c0 MxPwr=100mA
I: If#= 0 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=00 Prot=00 Driver=wpanusb
...
The following script enables the network interface in Linux (uses iwpan tool from above):
#!/bin/sh
PHY=`iwpan phy | grep wpan_phy | cut -d' ' -f2`
echo 'Using phy' $PHY
iwpan dev wpan0 set pan_id 0xabcd
iwpan dev wpan0 set short_addr 0xbeef
iwpan phy $PHY set channel 0 26
ip link add link wpan0 name lowpan0 type lowpan
ip link set wpan0 up
ip link set lowpan0 up