BLE 6LoWPAN environment about bt0 ifconfig

[abc]

Hello, I build a BLE 6LoWPAN environment on my raspberry pi with Kernel 3.18.3 and connect a BLE Dongle. The BLE Node is Arch BLE (www.seeedstudio.com/.../Arch-BLE-p-1998.html). and follow Nordic nRF51 IoT SDK But when I try to connect to my Arch BLE , echo "connect XX:XX:XX:XX:XX:XX 1" > /sys/kernel/debug/bluetooth/6lowpan_control , there had no any wrong but the bt0 interface not created. Do you know what’s wrong about this problem? thank you!

and i use nano see 6lowpan_control is empty ...

 nano /sys/kernel/debug/bluetooth/6lowpan_control

[FormerMember]

In addition to connecting to a device, there are a couple of other steps that you have to do, please take a look at this post.

Which commands do you run in order to connect? Before connecting, you should run the following commands:

 # Mount debugfs file system
 sudo mount -t debugfs none /sys/kernel/debug
    
 sudo echo 35 > /sys/kernel/debug/bluetooth/6lowpan_psm

 sudo sysctl net.ipv6.conf.all.forwarding=1

 sudo echo "connect AA:BB:CC:DD:EE:FF 1" > /sys/kernel/debug/bluetooth/6lowpan_control

[abc]

I have executed the above command ,but have same problem... not such bt0 ...please help me ...