TMS320F280049M: Max baud rate of UART by LIN module

Wayne Huang

Genius 16325 points

Part Number: TMS320F280049M

Dear champs,

I am asking this for customers.

As we know, baud rate of LIN is only up to 20 Kbps.

If LIN is used as UART mode, is the max baud rate limited to 20 Kbps, too?

If not, what is the max baud rate it supports?

We use this LIN/UART by CLA because CLA can only access LIN/UART rather than SCI.

Wayne

over 8 years ago

0 Mark Labbato over 8 years ago

Guru 30330 points

Hello Wayne,

The LIN specification is up to 20Kbps, you are correct. theoretically, you can set up the LIN to transmit at faster or slower rates as well, you just wouldn't be complying to the LIN standards.

The maximum bit rate is SYSCLK/32. Theoretically the maximum baud rate for the LIN in SCI mode is 3.125MHz based on this calculation.

-Mark

0 Wayne Huang over 8 years ago in reply to Mark Labbato

TI__Genius 16325 points

Mark,

It's good.
Thank you for your confirmation.

Wayne

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TMS320F280049M: Max baud rate of UART by LIN module