Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Wrong assignment of resistor on CANBUS #11

Open
juvinski opened this issue Jun 18, 2020 · 1 comment
Open

Wrong assignment of resistor on CANBUS #11

juvinski opened this issue Jun 18, 2020 · 1 comment

Comments

@juvinski
Copy link

Hi,

the R1 is in wrong position.
The R1 should be between CANL and CANH but instead is between the 2 outputs of CANL.
With this wrong configuration, when you up the CANBUS on linux, all the CAN network goes down.
The workaround is put a jumber on the place or R1 and insert the resistor in one CAN PAD - once they are in parallel.

@pierre-quelin
Copy link

Hello,

"The termination resistors on a cable should match the nominal impedance of the cable. ISO 11898 requires a cable with a nominal impedance of 120 Ω; therefore, you should use 120 Ω resistors for termination" between CAN_L and CAN_H and not between CAN_L(P14) and CAN_L(P14).

Thank you very much for your great job.

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Labels
None yet
Projects
None yet
Development

No branches or pull requests

2 participants