RIALTO SBC/Interfaces and Connectors/CAN
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CAN interface[edit | edit source]
Description[edit | edit source]
The CAN interface is optionally available on RIALTO SBC at the connector J66.
- J66 is a Phoenix 282837-3 3x50.8mm connector. On this connector are mapped these instances: UART3 or CAN.
CAN interface is connected to the i.MX6UL FLEXCAN controller.
Signals[edit | edit source]
The following table describes the interface signals:
| Pin# | Pin name | Pin function | Pin Notes |
|---|---|---|---|
| 1 | EXT1_P1 | RS232_RX or CAN_P | optional RS232 or CAN port |
| 2 | EXT1_P2 | RS232_TX or CAN_M | optional RS232 or CAN port |
| 3 | EXT1_GND | GND | connected to DGND directly or to PCN GND ring via RC filter |
Device mapping[edit | edit source]
CAN devices are mapped to can0 device in Linux. The device mapping depends on the device tree configuration.
Device usage[edit | edit source]
The peripheral can be configured using ifconfig and ip link utilities and can be tested with the can-utils utilities.
