Linux CAN bus: Difference between revisions

Revision as of 00:22, 8 May 2023

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CAN bus

Connect two boards like the following:

Board A   Board B

 CAN_H --- CAN_H
 CAN_L --- CAN_L
  GND ----- GND

Set up the boards by running the following on each of them:

# ip link set can0 up type can bitrate 125000

Then:
On board A:

# candump can0

On board B:

# cansend can0 500#1E.10.10

@@ Line 25: / Line 25: @@
 {{#ifeq: {{#var:HARDWARE_NAME}} | DART-MX8M-PLUS |
 '''Note''': For DART-MX8M-PLUS SoMs, the reference interface is can2 instead of can0.
-|}}<!--
+|}}
-Define and zero the OS version variable if needed to avoid an expression error.
--->{{#varexists:YOCTO_VERSION||{{#vardefine:YOCTO_VERSION|0}}}}<!--
+{{#ifexpr: {{#var:YOCTO_VERSION}} > 3.0 |
--->{{#varexists:DEBIAN_VERSION||{{#vardefine:DEBIAN_VERSION|0}}}}<!--
--->{{#ifexpr: {{#var:YOCTO_VERSION}} > 3.0 or {{#var:DEBIAN_VERSION}} >= 11|
 {{#switch: {{#var:HARDWARE_NAME}}
   | DART-MX8M-MINI