Hi, I'm troubleshotting my simple network and I'm trying to rule out and get cleared on some basic CAN questions : - is SJW MAX or EXACT Tq value that is used...
Robert Rozman
rozman@...
Jan 2, 2007 12:24 am
5954
Hello Rob, As per your example, if SJW is 4, then phase correction can be done up to a max of 4 Tqs. Error magnitudes of 1, 2,3 or 4 Tq can be corrected in...
Arun Gopalakrishnan (...
Arun.Gopalakrishnan@...
Jan 2, 2007 6:21 am
5955
Hello Here is a waveform I created - I have shown how to decipher the bits in the CAN frame: It is fairly easy once you know about the stuffed bits. ...
Robert Boys
RBoys@...
Jan 2, 2007 8:21 pm
5956
Rob, Here's another waveform source. http://focus.ti.com/lit/an/sloa101/sloa101.pdf Steve C. ... From: canlist-owner@... ...
Corrigan, Steve
s-corrigan1@...
Jan 2, 2007 10:12 pm
5957
Hi, thanks you guys for waveforms. I got much better insight into what is really happening on canbus lines. My problem lied in different resonators on my nodes...
Robert Rozman
rozman@...
Jan 3, 2007 11:43 pm
5958
Hi Robert, Most disturbances on a CAN network are local, i.e., seen by one or only a few nodes. If one node sees a false falling edge, it may resynchronize on...
Lars-Berno Fredriksson
LBF@...
Jan 4, 2007 3:24 pm
5959
Hello, I have a question. In almost any of the CAN oscillator related literature, I have seen the two equations mentioned by Mr. Fredriksson on df viz., I....
Arun Gopalakrishnan (...
Arun.Gopalakrishnan@...
Jan 5, 2007 7:38 am
5960
Both conditions have to be satisfied. The second one helps you to find the correct setting of the SJW. SJW should be as small as possible, still fulfilling the...
Lars-Berno Fredriksson
LBF@...
Jan 5, 2007 10:42 am
5961
Hi all and Happy New Year, i've a little and simple question: it is possible to integrate in the same ISO 118989 CAN bus 2.0A and 2.0B message without...
juanp_garciao
jportiz@...
Jan 7, 2007 7:21 pm
5962
Hi all, i'm looking for a gateway that allows me to include in a CANopen bus, with 1 Mbit/s and 2.0A messages, a J1939 device (250 Kbit/s and 2.0B messages)....
juanp_garciao
jportiz@...
Jan 7, 2007 7:22 pm
5963
Hello, ... Yes, it is possible, BUT: All nodes shall be able to handle both 2.0A and 2.0B messages. The nodes communicating only with 2.0A messages shall be at...
heikki.saha@...
Jan 8, 2007 10:31 am
5964
Hello JP, In my opinion it is possible to use a device like CANBridge of IXXAT or a CAN-CAN gateway of EMS for this purpose. The cyclic message of the J1939...
Kees Zagers
kees@...
Jan 9, 2007 11:57 am
5965
Hello, ... CANGW from Axiomatic Technologies Oy (http://www.axiomatic.fi) is very nice product for protocol conversions. I have excellent experience on it. ...
heikki.saha@...
Jan 9, 2007 2:19 pm
5966
Hi! I know of a CANopen to J1939 converter from RM Michaeliedes. It is especially designed for this task and packs the J1939 messages into two CANopen PDOs. It...
Andreas
xennix2005@...
Jan 9, 2007 2:35 pm
5967
hi, I am working on CANopen implementation.This is my first experiance with protocol implementation. I am using TMS320F2812. In CANopen,some times i have to...
aruru praveen
arurupraveen@...
Jan 10, 2007 2:37 pm
5968
Aruru, You cannot just "write into" flash like you can with RAM. You need to Clear/erase/Program (C/E/P) the flash memory with some special utilities....
Janakiraman, Hareesh
hareesh@...
Jan 10, 2007 5:18 pm
5969
Yes, it is possible. I have already used the TMS470R1B1M and you can configure the Flash Memory to be written while the programm is running. In the Memory Base...
Marcelo
msrmailxxx@...
Jan 10, 2007 5:34 pm
5970
Hello Everyone, I have some problem with interpretation of ISOBUS standard. Does anybody know how to interprete request message if we request for a Parameter...
Tomasz Gromadzki
Tomasz.Gromadzki@...
Jan 11, 2007 8:23 pm
5971
Hi all, I'm in a project in need of a CAN/Ethernet/CAN bridge - I want to transport messages from the first CAN-bus via the 1st bridge over Ethernet to the...
Rob Hulsebos
rob.hulsebos@...
Jan 19, 2007 6:04 pm
5972
We do conversions of HEVs to PHEVs (Plug-in Hybrid Electric Vehicles). We would like to add actual status of the PHEV system onto the CAN bus of the vehicle,...
davide@...
Jan 23, 2007 5:33 pm
5973
Hi David You can buy the SAEJ1939 specifications from the SAE, they are not very expensive, especially if you just buy J1939-71. You have not mentioned the...
Chris Quigley
chris@...
Jan 23, 2007 7:29 pm
5974
... I tried, and the link went to a non-existing page (404). ... HEVs. Toyota Prius and Ford Escape now, probably Toyota Highlander Nissan Altima next. ... I...
Davide Andrea
davide@...
Jan 23, 2007 9:19 pm
5975
SAE's site was having issues today. This link<http://www.sae.org/standardsdev/groundvehicle/j1939.htm>is working now. I agree with Chris, it may not be much...
Jim DeVore
jim@...
Jan 24, 2007 5:25 am
5976
Hi Davide, The automotive companies are each unique and not 1939. You've got some exploring to do. They monitor this list, but you notice none responding ...
Corrigan, Steve
s-corrigan1@...
Jan 24, 2007 6:28 am
5977
hi i am having one doubt, in object Dictionary index 0040 to 00F0 is for manufacturer specific data types. How to enter these types in the object Dictionary? ...
aruru praveen
arurupraveen@...
Jan 24, 2007 12:00 pm
5978
... What do you mean by "enter"? It depends how the object dictionary is implemented. But nobody real implements it the way that it can be read out using SDO...
Heinz-Juergen Oertel
oe@...
Jan 24, 2007 3:00 pm
5979
Thank you all for your input. I am so glad I found your list! Thanks to all of you who pointed out that J1939 is not the standard for cars. Thanks for telling...
Davide Andrea
davide@...
Jan 24, 2007 5:46 pm
5980
Hi Tomasz, ... No, my understanding is that request is answered only if DA=50 (ECU's address) or global address (255) ... No, same reason in a) ... Yes, all...
Rodrigo Sakai
rodrigosakai@...
Jan 25, 2007 1:10 am
5981
I could use some help choosing hardware for my project. I am trying to access two networks simultaneously and transmit the data. The first network is J1939-21....
daveintactown
wils2714@...
Jan 25, 2007 8:18 pm
5982
May I direct you to http://www.movimentoautomotive.com/. Check out the Puma product. If you are looking for a multi network tool you will find one there. ...