Difference between revisions of "AXEL Lite SOM/AXEL Lite Evaluation Kit/Interfaces and Connectors/CAN"
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Revision as of 10:07, 7 September 2022
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| History | |||
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| ID# | Issue Date | Notes | |
| 28/10/2020 | First DESK release | ||
CAN[edit | edit source]
Description[edit | edit source]
The CAN interface available on the Evaluation Kit at the connector J23.
J23 is a 3x2x2.54mm header that provides the CAN bus port compatible with the CAN 2.0B protocol. The CAN transceiver is implemented on the AXEL LITE SOM.
Signals[edit | edit source]
The following table describes the interface signals:
| Pin# | SOM Pin# | Pin name | Pin function | Pin Notes |
|---|---|---|---|---|
| 1,2 | - | N.A. | N.C. | Bus termination |
| 3 | J10.44 | CAN_M | Low bus line | |
| 4 | J10.42 | CAN_P | High bus line | |
| 5 | - | CAN_SHIELD | Shield | |
| 6 | - | DGND | Ground |
Device mapping[edit | edit source]
CAN device is mapped to can0 device in Linux. The peripheral can be configured using ifconfig and ip link utilities.
Device usage[edit | edit source]
Inserting a jumper on pins 1 and 2 enables 120Ω bus termination.
