Hello I used to routinely demonstrate what happens to a system in a car by shorting CAN_Hi and Lo together with an analyzer attached. Never wrecked a single...
Robert Boys
RBoys@...
Jun 2, 2009 5:00 am
7177
Hilarious! Best post I've seen here for a long time. A little scary too. Thanks, Joe ... -- Archives and useful links: http://groups.yahoo.com/group/CANbus ...
Joe Legris
jalegris@...
Jun 2, 2009 2:37 pm
7178
Bob, When you get a chance, try this with a Mercedes or Chrysler product. I'd like to see how the ISO-11898-3 fault-tolerant CAN survives. A bunch of us would...
Steve Corrigan
spcorrigan@...
Jun 2, 2009 2:47 pm
7179
Most Mercedes vehicles I've seen use ISO-11898-2 transceivers for engine data at 500kbps. I've seen FTCAN in some Volkswagen models, but only for the body bus,...
Bram Kerkhof
canbus@...
Jun 2, 2009 7:07 pm
7180
That's right, I almost forgot that -3 is 125kbps max, so it must be for the body electronics. I'll wake up sometime tomorrow hopefully, but no promises. Later,...
Steve Corrigan
spcorrigan@...
Jun 2, 2009 8:43 pm
7181
Dear Group members, Greetings from Aftek limited This email is a solution to one of the major problems faced in the automated HVAC domain. PROBLEM: Integration...
Jayant Wagh
jayantw@...
Jun 9, 2009 9:00 am
7182
Tektronix has CAN / LIN modules for some of their scopes to do just what you are looking for. I haven't tried it so I can't comment on it any more than that....
Brian Edwards
b.edwards@...
Jun 17, 2009 7:01 pm
7183
Hi all, I am using a extended CAN protocol on my application and I am having hardtime to debug the bits on the physical layer. I am using CAnalyzer to look at...
Subramanian, Ramkumar
Ramkumar.Subramanian@...
Jun 17, 2009 7:04 pm
7184
We use the Textronix's DPO-4104 O-Scope with the DPO4AUTO software option (its a little card you plug into the scope). ...
Aaron Levine
alevine@...
Jun 17, 2009 7:40 pm
7185
Ram, Scopes with protocol analyzers are getting more affordable all the time. Check out the Tektronix DPO/MSO 2000 series: they're not nearly as expensive as...
Brent Buescher
brent.buescher@...
Jun 17, 2009 7:41 pm
7186
hi The GoLogic logic analyser will do this - as well as heaps of other things. It can show you the "raw" edges but also decode them into the data stream. ...
Peter McConaghy
pmcconaghy@...
Jun 17, 2009 8:59 pm
7187
Ram, I know I'm probably missing something really simple here but WHY are you trying to decode CAN packets at the bit level on an oscilloscope? Based on the...
Allen Pothoof
apothoof@...
Jun 17, 2009 9:12 pm
7188
I'll second the GoLogic device. I wrote CAN parsing software back in 2000 for one of those. It parsed CAN messages sent out by our custom ASIC CAN device...
John Dammeyer
johnd@...
Jun 17, 2009 9:23 pm
7189
Dear Allen, I haven't used all the features in CAnalyzer. All I have used so far is to look at the can message in hex or decimal format, log those messages, ...
Subramanian, Ramkumar
Ramkumar.Subramanian@...
Jun 17, 2009 10:36 pm
7190
I use a Lecroy Vehicle Bus Analyzer based on their WaveRunner Xi DSO. Brilliant piece of equipment, but not anywhere near "affordable". But since you are...
Bram Kerkhof
canbus@...
Jun 17, 2009 11:16 pm
7191
Ram, I don't think of CAN as being fast but, then, I usually work at either 250K or 500K and you haven't specified your bit rate. In any event, I have heard of...
Allen Pothoof
apothoof@...
Jun 18, 2009 3:19 am
7192
Allen has explained it really well! I may have posted this link before but just in case I haven't here it is again. ...
John Dammeyer
johnd@...
Jun 18, 2009 5:20 am
7193
Hi Ram, you did not say why you wanted to look at bits in a CAN message, but I can understand that one want to :) I usually want to start looking at CAN bits...
Bertil Bäck
bertil.back@...
Jun 18, 2009 7:33 am
7194
Hi, I have a question regarding the operation of CAN devices in the bus off state. By "bus off" I mean the state a CAN device enters after "Error passive". If...
Chris Hauxwell
chris.hauxwell@...
Jun 18, 2009 9:21 am
7195
Chris, In order go from state "ERROR PASSIVE" to "BUS OFF" the last message being sent did not get the ACK-bit set and the error counter exceeded the value ...
Ulrik Hagström
canlist_mail@...
Jun 18, 2009 10:20 am
7196
Keep in mind that there may be spikes in the beginning of a message as well due to arbitration. And if you have a mix of 3.3V/5V powered transceivers on the...
Bram Kerkhof
canbus@...
Jun 18, 2009 11:43 am
7197
Chris, A "bus off" state in a CAN controller regularly requires software interaction in order to be changed towards a communicating state. CAN controllers'...
"Christian Bräutig...
christian.braeutigam@...
Jun 18, 2009 12:25 pm
7198
OK. Thanks. The DSP I'm using (Texas Instruments 281x) has a feature to automatically return to Error Passive from Bus Off after 128*11 recessive bits are...
Chris Hauxwell
chris.hauxwell@...
Jun 18, 2009 1:22 pm
7199
UNSUBSCRIBE From: canlist-owner@... [mailto:canlist-owner@...] On Behalf Of Chris Hauxwell Sent: Thursday,...
Dan Cornescu
dan.cornescu@...
Jun 18, 2009 2:16 pm
7200
Thanks for all your suggestion. Will consider all the options and will make a decisiion. Ram Invitrogen Corporation 5781 Van Allen Way Carlsbad CA 92008 phone:...
Subramanian, Ramkumar
Ramkumar.Subramanian@...
Jun 18, 2009 5:12 pm
7201
Hello, I have a question concerning the behaviour of the CAN transmit interrupt in the AT91SAM7X. I configure a mailbox for transmission by setting the CAN_MMR...
Uwe Koppe
koppe@...
Jun 19, 2009 11:40 am
7202
Hi I am using Infineon Tricore. During Tx if there is CAN High to CAN Low short, will it result in Bus Off condition ?[ will the Tx error counter get...
anil.matthews@...
Jun 19, 2009 9:11 pm
7203
Hi, If there is a short between CANH and CANL during transmission, it will result in CAN BUS off state and the transmission error counter goes to 255. Until...
Urs, Kantha
KanthaRaj.URS@...
Jun 20, 2009 5:44 am
7204
Kantha, Thanks for the reply. I am little confused. If the Bus is shorted, the bus is in recessive state and how can active error frame occur ? With out the...
anil.matthews@...
Jun 22, 2009 2:43 pm
7205
Hi all Trying to attach a VDO Cancockpit master gauge to a Mercedes Actros Truck to monitor truck RPM. I have succesfully managed to do this on a Renault truck...