You can download the X-Calculator for CAN from Atmel website: http://www.atmel.com/dyn/products/tools.asp?family_id=613 Dr K H Tang Embedded System, CAN,...
Dr K H Tang
khtang@...
Oct 7, 2005 11:22 am
4923
Hello, can somebody give an examble how to calculate the max length of the BUS on a given baudrate? -- Mit freundlichen Grüßen/Best regards, Tim Losereith --...
Tim Losereith
Tim.Losereith@...
Oct 7, 2005 11:24 am
4924
... Thanks! Thats a really good tool. But I´m searching for a formular to calculate it for a theoretical disquistion. ... -- Mit freundlichen Grüßen/Best...
Tim Losereith
Tim.Losereith@...
Oct 7, 2005 12:11 pm
4925
Hello Tim, you can use 5ns/cm (or refer to the cable spec) as a guideline for the speed in the copper. Add some propagation delay of the transceiver, CAN...
Dr K H Tang
khtang@...
Oct 7, 2005 12:33 pm
4926
Hello, you can calculate the message length with: http://www.esacademy.com/faq/calc/can.htm Mit freundlichen Grüssen/ best regards, T. Wiechert ... From:...
Thomas.Wiechert@...
Oct 7, 2005 12:38 pm
4927
Ops.. my mind was on MIPS development while I wrote this email.. yes it is supposed to be 5ns/m, sorry. Dr K H Tang Embedded System, CAN, DeviceNet Controller...
Dr K H Tang
khtang@...
Oct 7, 2005 1:24 pm
4928
Yes thats fine. Did you mean 5ns/m instead of 5ns/cm? I don´t need an calculator or a tool , I need the real formular to calculate it for myself. ... -- Mit...
Tim Losereith
Tim.Losereith@...
Oct 7, 2005 1:56 pm
4929
http://www.can-wiki.info/CanCabling (needs improvement for exact formula, but :-; Regards Heinz -- Archives and useful links:...
Heinz-Juergen Oertel
oe@...
Oct 7, 2005 2:31 pm
4930
Hallo Philips has an application note related to this subject. Maybe it can help you. http://www.mct.net/download/philips/can_timing.pdf Best regards/Mit...
Guilherme Mazon Hessm...
guilhermeh@...
Oct 7, 2005 2:37 pm
4931
... cable length, not message length calculation was requested by the OP. Regards Heinz +========================================================== ... ...
Heinz-Juergen Oertel
oe@...
Oct 7, 2005 2:37 pm
4932
... Hi to all, I'm newbie (me too) in this group and in CAN tech. in general. My goal is more or less the same discussing this thread, understand which is or...
mtcolom76
mtcolom76@...
Oct 10, 2005 12:19 pm
4933
Hello, How can I simulate the CAN BUS system I'm desiging using Proteus ISIS Professional by Labcenter Electronics? (http://www.labcenter.co.uk) I prefer to...
Arda Tuysuz
atuysuz@...
Oct 10, 2005 12:50 pm
4934
Hello, can somebody explain the following terms(from the ISO 11898): Common Mode Input Resistance Differential Dominant Output Voltage Common Mode Bus Voltage ...
Tim Losereith
Tim.Losereith@...
Oct 10, 2005 3:46 pm
4935
... These are typical parameters of transceivers for differential signals, not only CAN. You can either: - look at CAN transceiver data sheets, e.g. at Texas...
Heinz-Juergen Oertel
oe@...
Oct 10, 2005 4:57 pm
4936
Hello Tim, I'm away from my desk with limited email tools. If you have a moment please read this short tutorial on CAN. ...
Corrigan, Steve
s-corrigan1@...
Oct 10, 2005 6:49 pm
4937
Hello Matteo, I am rather new also, but I can share the following: Not sure if it was mentioned here already, but 'MCNet' might give you a good understanding...
Axel Trocha
trocha@...
Oct 10, 2005 11:42 pm
4938
For Tim and those who are interested, here is the short explanation: ISO11898 standardises the Physical Layer specification for CAN, where it uses NRZ...
Dr K H Tang
khtang@...
Oct 11, 2005 3:12 am
4939
... Hello Axel, ... http://www.vector-informatik.de/english/index.html?../products?mcnet.html ... Ok, I'm studing ;-) ... I have no doubts about that. The...
mtcolom76
mtcolom76@...
Oct 11, 2005 8:30 am
4940
... [..] ... Yes, the flood is overwhelming. As I mentioned before you definitly need to isolate repeating CAN messages. Maybe using the microcontroller is not...
Axel Trocha
trocha@...
Oct 11, 2005 9:39 am
4941
... The common mode bus voltage ist defined with -2V - 7V in the iso 11898. Are this the values which can be meassured from CAN_H and CAN_L to ground? I don´t...
Tim Losereith
Tim.Losereith@...
Oct 11, 2005 10:46 am
4942
If you are going to be looking at high speed busses, you may be better off with a higher-speed module. I have used the Softing CANusb with great success. ...
Peter Wrigley
pete@...
Oct 11, 2005 12:23 pm
4943
Tim, A very common problem in any application is that the local ground is NOT zero volts. In buildings, noise from sources such as switching power supplies...
Corrigan, Steve
s-corrigan1@...
Oct 11, 2005 5:04 pm
4944
Very good explanation! Thank you Steve! Tim ... -- Mit freundlichen Grüßen/Best regards, Tim Losereith FER Fahrzeugelektrik GmbH Vor dem Melmen 8-10 ...
Tim Losereith
Tim.Losereith@...
Oct 12, 2005 7:21 am
4945
Hi everyone, I've just come across a company which offers an I/O module which supports the CANopen protocol, but the company does not have a Vendor ID. In...
Chris Hauxwell
chris.hauxwell@...
Oct 20, 2005 9:12 am
4946
... Why not? 1018 and is subindex are mandatory but the "default value" is "No". DS301: No: not defined by this specification The device can be compliant to...
Heinz-Juergen Oertel
oe@...
Oct 20, 2005 2:13 pm
4947
sir, iam an m.tech student from hyderabad,india,iam doing a project on design & implementation of CAN protocol based master/multi slave network.where can i get...
pawan kumar
pawan_435@...
Oct 22, 2005 6:13 am
4948
sir, iam an m.tech student from hyderabad,india,iam doing a project on design & implementation of CAN protocol based master/multi slave network.where can i get...
pawan kumar
pawan_435@...
Oct 22, 2005 6:15 am
4949
Dear PawanKumar There are many protocols based on CAN. You can visit following web sites http://www.can-cia.org/ for getting information about CANopen and ...
S. P. Pandit
pandit_research@...
Oct 22, 2005 7:08 am
4950
1) 40m is TOTAL cable length 2) 1-1 terminator is needed on both ends. BR, Georg Bende ... -- Archives and useful links: http://groups.yahoo.com/group/CANbus ...
Bende Georg
georg.bende@...
Oct 24, 2005 9:20 am
4951
Hi all, I saw one of our friend asking a formula to calculate the max bus length. I have some slightly different questions. 1) I've heard people saying maximum...
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