CAN interface on i.MX8QXP's MEK board

[tiagorodrigues]

Hello all,

Hardware:

• imx8qxp mek board;
• base board (with can interfaces);

OS:

• Android Automotive (imx-p9.0.0_2.3.3-auto)

Question:

• I cannot find the can interface on my device, even running "ifconfig -a" nothing related with can bus appears.
• Can someone help on this?

Thank you all.

Best Regards,

Tiago Rodrigues

[jamesbone]

FlexCAN is verified on L4.9.88 BSP., we do not support in Android

The iMX8QXP default driver used CAN fd mode, so we used followed command to test it:

Rx: ip link set can0 up type can bitrate 1000000 dbitrate 4000000 fd on

Tx: ip link set can1 up type can bitrate 1000000 dbitrate 4000000 fd on

Rx: candump can0

Tx: cangen can1 -m

If you want to use the legacy mode iMX6/7 test command such as "ip link set can0 up type can bitrate 1000000", you need disable the fd mode in device tree by added "disable-fd-mode".

[tiagorodrigues]

Hi,

So is not possible to have CAN bus access using Android Automotive OS?

Thanks in advance.

[jamesbone]

That´s Correct.