在AWR1642 Obstacle Detection Sensor User's Guide中，有如下一段话：
The J3 connector provides the CAN_L and CAN_H signals from the onboard CAND-FD transceiver (TCAN1042HGVDRQ1).
These signals can be directly wired to the CAN bus.
Because the digital CAN signals (Tx and Rx) are muxed with the SPI interface signals on the AWR device,one of the two paths must be selected.
In the Rev A of the board,to enable the CAN interface,R11 and R12 resisters must be populated with 0Ω; R4, R6, R28,and R63 resistors must be removed to disconnect the SPI path.
In the Rev B board, this is done by placing the switch S2 on the "CAN" position.
Figure 7 shows the CAN connector.
由于没有REV A版本的PCB文件，并且PCB上也没有丝印，因此没有办法确定R11,R122等电阻位置，哪位大大有的话，还请给我一份吧，多谢！
