TMS320F2800157-Q1: TMS320F2800157-Q1 LIN Slave Node Example

Junping Zhai

Hi Experts:

Regarding the LIN peripheral of F2800157-Q1, are there any examples of LIN slave nodes that can comply with the LIN protocol?Could you provide an example related to this?Or provide me with a reference example?

Recently, the example I modified based on the SDK library has been having problems. The interruption cannot be triggered.new 2.c The code is shown in the attachment.

Best regards

Asa

16 天前

0 Daniel 16 天前

TI__Guru 50815 points

您好

已经收到了您的案例，调查需要些时间，感谢您的耐心等待

0 Vivian Gao 15 天前

TI__Guru 51540 points

Refer to link below

TMS320F2800157: LIN Model Slave Node Question - C2000 microcontrollers forum - C2000︎ microcontrollers - TI E2E support forums

0 Junping Zhai 14 天前回复 Vivian Gao

Prodigy 20 points

HI Vivian :

Thank you very much for your reply. I have made the necessary revisions based on the reference. However, sending the LIN signal through Canoe still fails to trigger the interruption. However, conducting an internal loopback test can successfully trigger the LIN interruption.

Now I suspect it might be a problem with my hardware. Because I transferred the RX and TX from a 5V system to the development board of F2800157.

The LIN chip I'm using is TLIN1021ADRBRQ1. I merely connected the RX and TX to F2800157. The pull-up resistor for RX is powered by the 3.3v from F2800157. The EN of the LIN chip remains always high. After completely isolating RX and TX and connecting them to F2800157, I wonder if this operation has any issues? Could it be the reason why Canoe fails to trigger the LIN interrupt on F2800157 after sending LIN signals?

+1 Vivian Gao 14 天前回复 Junping Zhai

TI__Guru 51540 points

If it's a hardware issue, using an oscilloscope to test it is pretty straightforward. You can look into it some more.

C2000 微控制器

C2000™︎ 微控制器论坛

TMS320F2800157-Q1: TMS320F2800157-Q1 LIN Slave Node Example