AWRL1432: LIN fail to communicate with externally

Andy Yin

Part Number: AWRL1432

Tool/software:

Hi,

My customer found when there is radar and other node transmit data on LIN at same time, radar LIN would stop work, can u let me know the reason, and how to avoid such issue?

Thanks.

Andy

over 1 year ago

0 James Murdock65 over 1 year ago

TI__Expert 3431 points

Hello Andy,

The AWR1432BOOST shows our reference LIN design using the TLIN1039-Q1 data sheet, product information and support | TI.com

AWRL1432BOOST Evaluation board | TI.com

If you are seeing some issue, I would first check on the TLIN1039 transceiver device. When you see multiple devices on the bus communicating, do you see any voltage drops, e.g. on the TX/RX LIN PHY lines or supply?

Regards,

James

0 Andy Yin over 1 year ago in reply to James Murdock65

TI__Genius 9390 points

Hi James,

About LIN Mode configuration, what is the difference between responder and commander mode? Is there any principle to select the LIN mode? Currently customer config it in commander mode, is there any risk? thanks,

0 Sami Mardini over 1 year ago in reply to Andy Yin

TI__Expert 4160 points

Hi Andy,

Sorry for the delay. Someone from our team will help answer your question,

Regards,

Sami

0 Tim Henderson over 1 year ago in reply to Sami Mardini

TI__Expert 8802 points

Hi Andy,

The decision is up to the customer based on system-design. I suggest they read about the LIN protocol as well as the Commander-Responder Principle in the following paper:

https://www.ti.com/lit/an/slla383a/slla383a.pdf

Regards,

Tim

Sensors

Sensors forum

AWRL1432: LIN fail to communicate with externally