Hello All, Can I use a same transreceiver for both CAN and RS-485? I think using CAN transreceiver for RS-485 communication should not be problematic. Rgrds, ...
Rotti, Prasad (IE10)
Prasad.Rotti@...
Nov 6, 2008 5:50 am
6807
Hello Prasad, Basically there _should not_ be big differences. After a very short look at RS-485 transceiver datasheet I noticed that several ones have smaller...
heikki.saha@...
Nov 6, 2008 9:05 am
6808
A modified RS-485 physical layer was the original physical layer used with CAN, prior to the high speed CAN spec. I could never get RS-485 to work with high...
cyrilla@...
Nov 6, 2008 3:48 pm
6809
Hello, I think this is interesting for all of us list members. This years technology award of the Eduard Rhein Foundation was given to Dr. Siegfried Dais and...
Heinz-Juergen Oertel
oe@...
Nov 13, 2008 10:33 am
6810
Hello All, as I'm redesigning and extending parts of an application, I have to change the API accessing the CAN hardware (init, filter, read, write...). I...
Oliver Betz
list_ob@...
Nov 14, 2008 1:13 pm
6811
Hi, I have two CAN devices that have the following setup. 24VDC battery 1 -> 24/5VDC power -> 5/5VDC isolated -> TJA1050 - CAN hi/lo============ CAN hi/lo -...
Bertil Bäck
bertil.back@...
Nov 17, 2008 10:22 am
6812
... bad design IMO. There should be a return path. ... the isolated driver is pulled to the line potential only by the 25kOhm resistors in the TJA1050, so it...
Oliver Betz
list_ob@...
Nov 17, 2008 10:59 am
6813
Hi, so the best option would be to also connect CAN gnd from device1 to device2? Br, Bertil BCK R&D Manager Hardware T +358 6 357 6305, M +358 50 588 6895, F...
Bertil Bäck
bertil.back@...
Nov 17, 2008 12:12 pm
6814
... Yes. The "ground" conductor should be part of a multi-conductor cable, not a separate wire. A cable acts quite like a common mode choke, while the separate...
Oliver Betz
list_ob@...
Nov 18, 2008 7:50 am
6815
Dear Friends, Currently I'm puzzling about the implementation of the object 0x1001 (error register) in a commercial CanOpen stack I'm using. It behaves like...
Bende Georg
Georg.Bende@...
Nov 18, 2008 6:29 pm
6816
... Georg, yes, true, the 301 only says "This object shall provide error information." My interpretation is that, if the device is error-free, this should be ...
Heinz-Juergen Oertel
oe@...
Nov 18, 2008 8:08 pm
6817
Do you have bus termination resistors (120 Ohm) one at each end? As to the rest of your question. It's hard to answer a question like "My software doesn't...
John Dammeyer
johnd@...
Nov 19, 2008 4:15 am
6818
Sir I have created one CANbus. And I have connected two nodes with this bus using two transceivers. In one node I have loaded the transmitting pgm and other...
Joy.George@...
Nov 19, 2008 4:15 am
6819
Here are the few of the things you could try: 1. First ensure CAN loopback test passes on both the nodes. If this does not happen, then you need get this...
Rotti, Prasad (IE10)
Prasad.Rotti@...
Nov 19, 2008 4:42 am
6820
I missed the 120 ohm termination resistance part. You need to have one at each node. Rgrds, Prasad ________________________________ From: Rotti, Prasad (IE10) ...
Rotti, Prasad (IE10)
Prasad.Rotti@...
Nov 19, 2008 4:42 am
6821
Dear Georg, ... since the object 1001 is mandatory in CANopen lots of manufacturers have it implemented ;-) But the implementation in your hardware seems to be...
Torsten Krahl
krahl@...
Nov 19, 2008 8:42 am
6822
Hi, Can anyone share the DS301 ver document. It would be of great help to me. Thanks and Regards Rohith M P Larsen and Toubro limited India...
Rohith MP
Rohith.MP@...
Nov 19, 2008 9:33 am
6823
Hi Rohith, ... for the specs just refer to the CiA website : http://can-cia.org/index.php?id=440&L=http Mit freundlichen Gruessen With best regards Torsten M....
Torsten Krahl
krahl@...
Nov 19, 2008 10:04 am
6824
It can be obtained from CiA (Can in Automation, not Central Intelligence Agency). www.can-cia.de Greetings, Georg ... Von:...
Bende Georg
Georg.Bende@...
Nov 19, 2008 10:09 am
6825
... wrong. You should have them on each end of the cable to achieve clean and fast transistions. That's why they are called _termination_ resistors. If you...
Oliver Betz
list_ob@...
Nov 19, 2008 10:23 am
6826
I designed a CAN/USB device for my company and we sell it via the web. In my experience, I have only ever heard of one common API that was requested by a ...
stunbmun
stunbmun@...
Nov 20, 2008 4:47 am
6827
... Probably the OBDII port. Look for pinouts online. ... J1939 uses CAN at its lowest physical layer, where as J1708/J1587 use a different, slower serial...
stunbmun
stunbmun@...
Nov 20, 2008 4:47 am
6828
... Correction - I think trucks that support J1939 use a 9-pin round Deustch connector instead of an OBD2 connector. These 9-pin connectors also can include...
stunbmun
stunbmun@...
Nov 20, 2008 5:04 am
6829
... there are some more possibilities as setting versatile filters, distributing incoming messages to the appropriate handlers... Oliver -- Oliver Betz,...
Oliver Betz
list_ob@...
Nov 20, 2008 9:05 am
6830
Hello, Just to add my 2 Eurocents: Further functions that are nice to have: -Bus status notification -Buffer handling Common API: Our company has a software...
Bende Georg
Georg.Bende@...
Nov 20, 2008 9:55 am
6831
Hi, almost all CAN hardware manufacturers have their own CAN API's. Vector and Kvaser lets you download the API from their web page and build own software...
Bertil Bäck
bertil.back@...
Nov 20, 2008 9:57 am
6832
Hello ... as Bertil already mentioned there are some Linux API approaches ... but there is also CANpie. So maybe you can check out ...
Torsten Krahl
krahl@...
Nov 20, 2008 10:39 am
6833
... Not commonly used maybe but there is CANAL (CAN abstraction layer), It is documented here http://www.vscp.org/wiki/doku.php/canal_specification and there...
YAP
x112358@...
Nov 20, 2008 11:34 am
6834
Yes, heavy duty commercial trucks/tractors us a 9-pin Deutsch connector (standard per SAE), not OBDII. The pins are marked on the connector, but can be hard...
paul.jolissaint@...
Nov 20, 2008 4:55 pm
6835
... From our experience, maintaining the open source can4linux, and a lot of proprietary drivers for CANopen, DeviceNet, J1939, CAN error handling is very...
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