S32K116-EVB2 LIN communications doesn´t work

[davara]

Hi, i´m trying the demo project lin_slave_s32k116 in a S32K116EVB2Q048 and the board doesn´t receive nor transmit any message. I´ve used an oscilloscope to check if the signal was corrrectly arriving to the LIN-associated pin, and that´s ok.

During the first attempts, as it comes configured by default in the demo, the LIN Rx/Tx  pin were PTC6/PTC7. The communications doesn´t work, so that i changed these pins to PTC8/PTC9 and communications are not working yet.

I guess the problem may be in the transceiver wake-up process, but i don´t know. The instructions to wake-up the transceiver are the following:

```` 

/* Set LIN transceiver sleep pin direction */
PINS_DRV_SetPinsDirection(PTA, (0x1u << 7UL));
/* Wake up LIN transceiver */
PINS_DRV_SetPins(PTA, (0x1u << 7UL));

```

Thanks for your help, regards.

[Haffman]

Hello, sir. Have you resolved the LIN communication issue now?

[VaneB]

Hi @davara 

To run the example you will need to have the following items:

• 2 S32K116 boards
• 1 Power Adapter 12V
• 2 Dupont female to female cable
• 1 Personal Computer
• 1 Jlink Lite Debugger (optional, users can use Open SDA)

Be sure to have this before running the project.

B.R.

VaneB

[davara]

¿Must i flash in one board the slave demo program and the master demo program in the other one? ¿Or the slave demo in both?

Thank you.

[VaneB · Accepted solution]

Hi @davara 

This example demonstrates the LIN communication between S32K116 Master and Slave using unconditional frames.

So, it is necessary to have one board as slave and the other as master.