Linux CAN bus: Difference between revisions

Latest revision as of 22:30, 3 June 2025

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 1: / Line 1: @@
 <!-- Set release according to "release" parameter in URL and use RELEASE_DUNFELL_V1.0_VAR-SOM-MX6 as default
---> {{INIT_RELEASE_PARAM|RELEASE_DUNFELL_V1.0_VAR-SOM-MX6}}<!--
+--> {{INIT_RELEASE_PARAM_QUIET|RELEASE_DUNFELL_V1.0_VAR-SOM-MX6}}<!--
 --> {{#lst:Yocto_Platform_Customization|{{#var:RELEASE_PARAM}}}} <!--
 --> {{#lst:B2QT_Platform_Customization|{{#var:RELEASE_PARAM}}}} <!--
 --> {{#lst:Debian_Platform_Customization|{{#var:RELEASE_PARAM}}}} <!--
+--> {{COMPAT_DEBIAN_LST_MODEL}} <!--
 --> {{PageHeader|CAN bus}} {{DocImage|category1=Yocto|category2=Debian}}[[Category:Boot2Qt]][[Category:Android]][[Category:VAR-SOM-MX6]][[Category:DART-6UL]][[Category:VAR-SOM-MX7]][[Category:DART-MX8M]][[Category:DART-MX8M-MINI]][[Category:VAR-SOM-MX8M-NANO]][[Category:VAR-SOM-MX8X]][[Category:VAR-SOM-MX8]][[Category:DART-MX8M-PLUS]]
@@ Line 25: / Line 26: @@
 {{#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