search

olegel / CANLogger

CAN bus logger and analyser tool
GNU General Public License v3.0
59 stars 18 forks source link

Unable to read information from car #2

Open liamstears opened 11 months ago

liamstears commented 11 months ago

I want to make the Volvo low-speed CAN bus adapter for my 2007 XC90 but I am failing at the first hurdle of getting canbus information using CANLogger

I expected on the left hand side to have an address like 01234567 using 7 digits/letters hex but instead I get 00000123 using only last 3 digits/letters hex and I can't seem to link any information to anything useable. For example I press steering wheel buttons to find this but I see no obvious codes from this I just get hundreds of constant codes that I cant understand

I have attached short video and logdata I hope you can help me understand this and get this to work and get the information I need to build Volvo can bus adapter

https://github.com/olegel/CANLogger/assets/67321276/458773e8-8c7e-4226-b67d-e05ace91a9f6

20231010_102539.logdata.txt

liamstears commented 11 months ago

I have found my MCP2515 has 8mhz crystal. I programmed 16mhz when I used Arduino IDE. If I change to 8mhz in Arduino ide I get nothing at all. Do I need MCP2515 with 16mhz crystal maybe?

liamstears commented 10 months ago

Ok I tried 16mhz crystal and it did not work at all. Only 8mhz crystal with 16mhz setting gives me any readings at all.

@olegel please help...