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CAN

Edge 2 has one CAN controller, CAN1 of the RK3568, brought out to a four-pin, 2.0 mm connector on the top side of the board, on the edge above UART5.

The board has no CAN transceiver. The connector carries logic-level signals, so you need an external transceiver module, for example one based on the TJA1042, between Edge 2 and the CAN bus.

Top view of the Edge 2 board with the CAN connector on the right edge marked

Figure 1. The CAN connector

Pin Assignments​

Pin#PinNamePinTypeInput/OutputSignal Description
15VPowerOutput5 V supply for the transceiver, 200 mA maximum
2CAN1_RXsignalInputCAN receive data, from the transceiver
3CAN1_TXsignalOutputCAN transmit data, to the transceiver
4GNDPowerNAPower and signal reference ground

Wiring​

Wiring between the Edge 2 CAN connector and a CAN transceiver: 5V to VCC, CAN1_RX to RXD, CAN1_TX to TXD, GND to GND

Figure 2. CAN transceiver wiring

Software Support​

Using the CAN interface needs a driver for the RK3568 CAN controller in the operating system. For the status in Mixtile OS, see Hardware Interfaces in Mixtile OS.