CCS C Software and Maintenance Offers
FAQFAQ   FAQForum Help   FAQOfficial CCS Support   SearchSearch  RegisterRegister 

ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

CCS does not monitor this forum on a regular basis.

Please do not post bug reports on this forum. Send them to support@ccsinfo.com

CAN bus activity

 
Post new topic   Reply to topic    CCS Forum Index -> General CCS C Discussion
View previous topic :: View next topic  
Author Message
stw
Guest







CAN bus activity
PostPosted: Sat Jan 19, 2008 7:31 pm     Reply with quote

Does anyone know what qualifies as can bus activity? I have a device with a can bus that i am trying to talk to. when the device is off the CANL and CANH rest at approx 1.2V. when energized they rise to 2.5V. but there is no defined messages on the bus unless you ping it with a request for data. This is a large machine that I don't have access to its internal program. I am trying to detect when it is energized and then monitor its status. As the monitoring device is battery powered I cant continuously ping it to see if it responds. So I'm looking for any tricks out there that might allow me to use the above mentioned bus behavior to indicate that this %$^*()_^% thing is on.
Thanks in advance
stu
Display posts from previous:   
Post new topic   Reply to topic    CCS Forum Index -> General CCS C Discussion All times are GMT - 6 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group