CAN setup across two boards

[rj...@umich.edu]

Hi,

I'm trying to set up can on my beaglebone black. Right now I just want to know it works by communicating via CAN across two different boards.

I was able to send and receive can over one board with vcan, but am currently unable to get can working over two boards

On each board I have run the following commands

config-pin P9_24 can
config-pin P9_26 can
sudo modprobe can
sudo modprobe can-dev
sudo modprobe can-raw
sudo ip link set can0 up
sudo ifconfig can0 up

This is what I get when I run 

debian@beaglebone:~/Desktop/can_code$ ifconfig can0
can0: flags=193<UP,RUNNING,NOARP>  mtu 16
        unspec 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00  txqueuelen 10  (UNSPEC)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 169

I have set up two BBB's by connecting two CAN transceivers as shown in the schematic:

I have tried running on board 1

 cansend can0 5A1#01.02.03.04.05

and board 2

 candump can0

but I am unable to get a reading on board 2.

What steps do I need to take to get can communication between my two boards?

Thank you

[Jason Kridner]

https://gist.github.com/jadonk/90d3462c8569d11fa3f7caf14f4769f1

rx:
ip link set can0 type can bitrate 500000
ifconfig can0 up
candump can0

tx:
ip link set can0 type can bitrate 500000
ifconfig can0 up
cansend can0 123#DEADBEEF

[rj...@umich.edu]

I have run those lines of code, but candump doesn't print anything

[Yiling Cao]

ip link set can0 type can bitrate 500000 triple-sampling on #bitrate can be 125000 or 500000
ifconfig can0 up
cansend can0 5A1#11.22.33.44.55.66.77.88
candump can0

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Yiling Cao

http://umine.io/

http://ariaboard.com/

http://shanghainovotech.com/