topic Re: How to configure UART module as LIN in IMX8QM in i.MX Processors

How to configure UART module as LIN in IMX8QM

Lincoln_Dessen — Mon, 26 Jun 2023 08:15:10 GMT

Hi All,

I am using IMX8QM connecting UART3 to LIN transceiver TJA1021 and running Android 9 on it.

How to configure UART to work as LIN in data link layer?

Re: How to configure UART module as LIN in IMX8QM

Lincoln_Dessen — Tue, 27 Jun 2023 03:01:01 GMT

Hi @giraffe508,

Thanks for your reply.

I have enabled UART module in the device tree file.

Now I am struggling to add the code you provided to the file `drivers/tty/serial/imx.c`, could you give more details on where to add it?

Thank you!

Sincerely,

Lincoln

Re: How to configure UART module as LIN in IMX8QM

Sanket_Parekh — Wed, 28 Jun 2023 07:04:51 GMT

Hello @Lincoln_Dessen ,

I hope you are doing well.

->There is no tested LIN driver support since there is no hardware support for LIN on any of our platforms.
->Browsing in the LPUART driver in the SDK One can see some hooks mentioning the LIN break detect feature, but in the opening statement, there are no HW platforms with LIN enabled for i.MX8, UARTs are typically console or BT related for i.MX8.

Thanks & Regards,
Sanket Parekh