Difference between revisions of "CANbus Module"Voipac webshop

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<div style="float:right">__TOC__</div>
 
<div style="float:right">__TOC__</div>
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On this page PCIe card functionality is shown. Both Bluetooth and WiFi operations are tested using dual band Intel AC 3160 wireless card. Mini PCI Express slot must provide PCIe and USB signals to support all the features.
 
  
 
'''''Input:''''' None<br />
 
'''''Input:''''' None<br />
 
'''''Output:''''' Device driver is available
 
'''''Output:''''' Device driver is available
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[[File:CANbus.png|500px]]
  
 
<syntaxhighlight lang="bash">
 
<syntaxhighlight lang="bash">
 
root@imx8mq-voipac:~# ip addr show dev can0
 
root@imx8mq-voipac:~# ip addr show dev can0
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3: can0: <NOARP,UP,LOWER_UP,ECHO> mtu 16 qdisc pfifo_fast state UP group default qlen 10
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1: can0: <NOARP,ECHO> mtu 16 qdisc noop state DOWN group default qlen 10
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     link/can
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     link/can  
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root@imx8mq-voipac:~# ip link set can0 type can bitrate 500000
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</syntaxhighlight>
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root@imx8mq-voipac:~# ip link set can0 up
 
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root@imx8mq-voipac:~# cansend can0 01a#01020304
 
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interface = can0, family = 29, ty[  434.135862] NOHZ: local_softirq_pending 08
 
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pe = 3, proto = 1
 
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root@imx8mq-voipac:~#
 
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to receive
 
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root@imx8mq-voipac:~# candump can0
 
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</syntaxhighlight><br/>
 
  
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'''''Input:''''' Connect a pair of iMX6 TinyRex Development boards and a couple of dedicated [https://www.ti.com/tool/TCAN332EVM CAN evaluation modules]<br />
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To setup can interface to 500kB bitrate use following command:
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'''''Output:'''''  Boards communicate between each other. Sent messages are received successfully<br /><br />
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<syntaxhighlight lang="bash">
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ip link set can0 up type can bitrate 500000
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</syntaxhighlight>
  
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Board 1 (receiver) commands and outputs:
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To test send data use following command:
 
<syntaxhighlight lang="bash">
 
<syntaxhighlight lang="bash">
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root@imx6-tinyrexpro:~# ip link set can0 type can bitrate 1000000
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cansend can0 365#AA.11.11
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root@imx6-tinyrexpro:~# ip link set can0 up
 
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flexcan 2090000.flexcan can0: writing ctrl=0x01232054
 
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root@imx6-tinyrexpro:~# candump can0 &
 
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[1] 833
 
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root@imx6-tinyrexpro:~#  can0  123  [4]  DE AD BE EF
 
 
</syntaxhighlight>
 
</syntaxhighlight>
  
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Board 2 (transmitter and receiver) commands and outputs:
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To test receiving data use following command:
 
<syntaxhighlight lang="bash">
 
<syntaxhighlight lang="bash">
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root@imx6-tinyrexpro:~# ip link set can0 type can bitrate 1000000
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candump can0
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root@imx6-tinyrexpro:~# ip link set can0 up
 
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flexcan 2090000.flexcan can0: writing ctrl=0x01232054
 
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root@imx6-tinyrexpro:~# candump can0 &
 
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[1] 847
 
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root@imx6-tinyrexpro:~# cansend can0 123#DEADBEEF
 
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root@imx6-tinyrexpro:~#  can0  123  [4]  DE AD BE EF
 
 
</syntaxhighlight>
 
</syntaxhighlight>
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[[File:CANbus log.png]]

Latest revision as of 22:12, 11 February 2025

Input: None
Output: Device driver is available

CANbus.png 

root@imx8mq-voipac:~# ip addr show dev can0
1: can0: <NOARP,ECHO> mtu 16 qdisc noop state DOWN group default qlen 10
    link/can

To setup can interface to 500kB bitrate use following command: 

ip link set can0 up type can bitrate 500000

To test send data use following command: 

cansend can0 365#AA.11.11

To test receiving data use following command: 

candump can0

CANbus log.png

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