mestrode / lin-interface-library Goto Github PK

Hey,
I was reading a lot about LIN and trying to find some libraries and examples. But nothing matches to what I am receiving, and I am pulling my hair on that.
I wonder if you could maybe help me, I know It's been a year since you've pushed to that repo but worth a shot.

So I have LIN in my car for ambient lighting and LED modules. It constantly sends loads of messages but they are same messages.
I think it should be something similar to https://github.com/MarkusLange/APGRD004/blob/main/src/apgrd004.cpp

so I've used your library and id didn't really give me an answer either.

While I understand I should have break 0x00 and sync 0x55 I can't seem to figure out what I am receiving

Here is an example

0x00 0x20 0x18 0xE6 0x06 0x26
0x00 0x20 0x18 0xE6 0x06 0x26 0x 0x06 0x26
0x00 0x20 0x18 0xE6 0x06 0x26 0x06 0x26
0x00 0x20 0x18 0xE6 0x06 0x26 0xE6 0x26
0x00 0x20 0x1E 0xE6 0x26
.
.
.
0x00 0x20 0x1E 0xE6 0x26 0x18 0xF8 0x26
0x00 0x20 0x1E 0xF8 0x26
.
.
.
0x00 0x20 0x1E 0xF8 0x26 0xE6 0x26
0x00 0x20 0x1E 0xE6 0x26
.
.
.
0x00 0x20 0x1E 0xE6 0x26 0x18 0xF8 0x26
0x00 0x20 0x1E 0xF8 0x26
.
.
.
0x00 0x20 0x1E 0xF8 0x26 0xF8 0xF8 0x26
0x00 0x20 0x00 0xF8 0x26 0xE6 0xC6 0x26
0x00 0x20 0x00 0xE6 0xE0 0x26
.
.
.
0x00 0x20 0x00 0xE6 0xE0 0x26 0x1E 0x26
0x00 0x20 0x00 0x18 0x26
.
.
.
0x00 0x20 0x00 0x18 0x26 0xE6 0xC6 0x26
0x00 0x20 0x00 0xE6 0xE0 0x26
.
.
.
0x00 0x20 0x00 0xE6 0xE0 0x26 0xE6 0x18 0x26
0x00 0x20 0x18 0xE6 0x06 0x26
.
.
.
0x00 0x20 0x18 0xE6 0x06 0x26 0xE6 0x26
0x00 0x20 0x1E 0xE6 0x26
.
.
.
0x00 0x20 0x1E 0xE6 0x26 0xE6 0x18 0x26
0x00 0x20 0x18 0xE6 0x06 0x26
.
.
.

So when I was playing in the car and changing colors, it was sending longer message which looks like repeat of previous state plus new state request (?)
dots in example are just repeated previous line (it's spamming those lines so I think it could be slaves sending current state ?)

since 0x00 is my break byte, does that mean 0x20 is my sync byte ? then next byte would be PID or ID ?
Also last byte should be CRC but that does not make sense either since last byte is always 0x26
My goal is so I can trigger LED module from my car on my bench, but I am getting nowhere. And all examples over the internet are nothing alike to what I am getting.

Hello,
your code looks good :-)
Can you improve by removing the delay's and the while loops?
This stopps the controller and no other function in the delay time is possible ..

BR
Alf