The Autonerdz Community Forums

The Autonerdz Community Forums
https://www.autonerdz.com/cgi/yabb2/YaBB.pl General Public Area >> PicoScope >> Serial decoding https://www.autonerdz.com/cgi/yabb2/YaBB.pl?num=1531474043 Message started by Tim Flores on Jul 13^th, 2018 at 2:27am

Title: Serial decoding
Post by Tim Flores on Jul 13^th, 2018 at 2:27am

When doing serial decoding of can bus signals. Do the values that come up in the decoding as red indicate corrupt data? The reason that I am asking is that I was decoding the VCAN on a Cummins ECM on a problem truck and was getting all red values. I switched to a brand new truck and picked the signal of the same two wires on the connector and got all red values of the ECM on the new truck. Wondering what is going on and if I was doing something wrong. Any suggestions? Thanks in advance.

Title: Re: Serial decoding
Post by Walter Kelling on Sep 30^th, 2018 at 9:52am

I had that issue. I went in settings and changed my low can to 1.8v and 100ms and high can to 2.9v and 100ms those settings give the best results.

Title: Re: Serial decoding
Post by Logic on Oct 1^st, 2018 at 1:42am

Set you baud rate correctly and set Hysteresis at zero