S32G中的主题 Re: LLCE LIN in Linux

LLCE LIN in Linux

Alex_mjl — Fri, 26 Apr 2024 05:56:57 GMT

Hello NXP Team,

Refer to the S32G_Linux BSP38 documentation, It seems that LLCE LIN is already supported in Linux. As show below:

I want to know how to use LLCE LIN in Linux?

Re: LLCE LIN in Linux

chenyin_h — Sun, 28 Apr 2024 07:36:37 GMT

Hello, @Alex_mjl

Thanks for the question.

Yes, it could be used in UART mode, the kernel could be compiled as listed in the BSP UM, but one important limitation is that LLCE LINFlexD can be used as a serial console once the LLCE mailbox driver has been loaded, typically after reaching the Linux console.

However, by default, the serial driver is loaded before loading the LLCE modules, so that only LINFlexD consoles are enabled during the boot. You may have to make some modification to the system to insure the driver loading order to have the LLCELIN correctly probed by the driver.

Best Regards

Chenyin

Re: LLCE LIN in Linux

Alex_mjl — Sun, 28 Apr 2024 08:11:19 GMT

Hello Chen,
This driver under Linux, can only be used as uart mode. If I want to use the LIN protocol to transmit, is it not supported?

Re: LLCE LIN in Linux

chenyin_h — Tue, 30 Apr 2024 02:17:05 GMT

Hello, @Alex_mjl

Thanks for the feedback.

As indicated in the BSP UM, only UART mode is supported for LINFlexD based on Linux BSP.

Best Regards

Chenyin

Re: LLCE LIN in Linux

Alex_mjl — Tue, 30 Apr 2024 02:21:51 GMT

Thank you for your answer.