S32G-VNP-RDB3 enable LLCE flexcan

[Scidem]

1. image.png

    

   Where exactly is J166 (CAN2_SEL) located on the S32G-VNP-RDB3 board and how should it be configured?

2. Which physical connector does LLCE CAN0 and LLCE CAN14 map to?

3. Is additional Device Tree / pinmux / transceiver enable configuration required, or is the jumper sufficient?

4. Is there an official mapping table for LLCE instances → FlexCAN → transceiver → board connector?

5. What does LLCE FW error 53 mean in this context (is it related to missing ACK)?
   
   
   

6. in the picture is the connected with llcecan14(device tree) with FlexCan0 port ?

[chenyin_h]

Hello, @Scidem 

Thanks for your post.

1. Would you mind share more information regarding to J166, in which document/chart it was mentioned?

2. When the cable shown is plugged to the board, the LLCECAN0/CAN14 could be directly used with the cable, there is mark on each pair of the wire,

chenyin_h_0-1757646880501.png

3. For actually using it under BSP, you may reference the chapter12 "LLCE support" of BSP44 UM for S32G3, the detailed configurations, building prerequisite are provided.

4. The LLCE_CAN and FlexCAN are different IPs on S32G3, connections on RDB3 is shown below:

chenyin_h_1-1757647249596.png

5. The error mentioned may be the LLCE_ERROR_COMMAND_NOTSUPPORTED,  For the detailed error code description, I suggest referencing the Llce_Fw_ReturnType in  Llce_InterfaceFwMgr.h directly

6. No, as mentioned, LLCE_CAN14 and FlexCAN0 are different. they could be used separately.

BR

Chenyin