SWRU585 November 2021 IWR6843
The CAN connector provides access to the two CAN_FD interfaces (CAN_L and CAN_H signals) from the onboard CAND-FD transceivers. These signals can be directly wired to the CAN bus.
Table 5-3 shows the J3 and J4 connectors that provide the CAN_L and CAN_H signals from the 2 onboard CAND-FD transceivers (TCAN1042HGVDRQ1). These signals are wired to the CAN bus after muxing with the SPI interface signals; one of the two paths must be selected. Two CANs are selected by closing the switch S1.4 (1st position of switch to be ON).
Pin Description | Device Interface | Connector on Board |
---|---|---|
SPI_CS1 | CAN2_TX | J4.1 - CANL, J4.2 - GND, J4.3 - CANH |
SPI_CLK1 | CAN2_RX | |
MISO_1 | CAN1_TX | J3.1 - CANL, J3.2 - GND, J3.3 - CANH |
MOSI_1 | CAN1_RX |