# WP85 with CAN IIOT card

**URL:** https://mangoh.discourse.group/t/wp85-with-can-iiot-card/1403
**Category:** mangOH Green
**Created:** [May 10, 2018, 9:19am UTC](https://mangoh.discourse.group/t/wp85-with-can-iiot-card/1403 "2018-05-10T09:19:10Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![jyijyi](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/jyijyi/32/997_2.png) [@jyijyi](https://mangoh.discourse.group/u/jyijyi)
#### Post date: [May 10, 2018, 9:19am UTC](https://mangoh.discourse.group/t/wp85-with-can-iiot-card/1403/1 "2018-05-10T09:19:10Z")

</div>

Currently by following the link below, I can see the can0 interface in ifconfig.

> **[mangOH/mangOH](https://github.com/mangOH/mangOH/wiki)**
>
> Primary mangOH git repository. Contribute to mangOH/mangOH development by creating an account on GitHub.

* * *

root@swi-mdm9x15:~# ifconfig can0  
can0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  
UP RUNNING NOARP MTU:16 Metric:1  
RX packets:0 errors:0 dropped:0 overruns:0 frame:0  
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0  
collisions:0 txqueuelen:10  
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

* * *

I want to test the data communication with the CAN bus.  
I have successfully compiled the killSwitch by DS from here:

> **[mangOH/Demos](https://github.com/mangOH/Demos/tree/master/KillSwitch)**
>
> Code for mangOH demos. Contribute to mangOH/Demos development by creating an account on GitHub.

After I download to the board, there is nothing coming out.  
What do we expect for this application?

I have also tried to just compiled the can\_open by WP85 toolchain in here:  
[https://github.com/mangOH/Demos/tree/master/KillSwitch/canOpen](https://github.com/mangOH/Demos/tree/master/KillSwitch/canOpen)

However I got this message in the loopback test:

* * *

root@swi-mdm9x15:/tmp# ./can\_open can0 --prompt  
[1] [1] Error: 101  
[2]

[2] Error: 101  
[3] [3] Error: 101

* * *

Can anyone help on this?