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rhysmorgan134 / JaguarXf_CAN

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CAN-L unable to communicate #3

Closed alierhan closed 4 years ago

alierhan commented 4 years ago

Hi Rhys,

I can see data coming from CAN-H when the engine is running, but unable to get any data with bit rate 125000. Checked all wiring etc, All seems to be fine.

My /boot/config.txt

CAN bus controllers

dtoverlay=mcp2515-can0,oscillator=16000000,interrupt=25 dtoverlay=spi-bcm2835-overlay How to specify can1 to be used for CAN-L? Is there info I need here to get hardware to expose can1?

sudo /sbin/ip link set can0 up type can bitrate 500000 brings up the port and works fine

sudo /sbin/ip link set can1 up type can bitrate 125000 returns Cannot find device "can1", I'm assuming there's a configuration entry I am missing. My plan is to have both CAN-H and CAN-L running so that I can get data from both ports of the PiCAN2. I hope this is possible

Cheers

rhysmorgan134 commented 4 years ago

Hi,

For sure its wired onto the wrong pins on the OBD connector, the medium speed and high speed are two seperate circuits entirely, pins 11 and 3 are the ones required for medium speed connection, see the attached picture for clarity :)

Screenshot 2020-04-09 at 03 43 43
rhysmorgan134 commented 4 years ago

After reading one of your other comments, I am not sure if you are using this on a jaguar XF or if you are looking to customize it for another car. If its not a Jaguar XF then double check which pins are for medium speed, as they certainly do vary between manufacturers.

alierhan commented 4 years ago

After reading one of your other comments, I am not sure if you are using this on a jaguar XF or if you are looking to customize it for another car. If its not a Jaguar XF then double check which pins are for medium speed, as they certainly do vary between manufacturers.

I am using it on Jaguar XF 2009, so I rewired my OBD2 will test again soon