Reverse compatibility. J1939 can (and has) put new parameters in those unused bytes. And as the spec reads, the upper value ranges in the data field are not...
Cyrilla Menon
cyrilla@...
Feb 1, 2003 1:30 pm
2010
What's the differences (regarding implementation and performance) between variable mapping and multiple static mapping? For example if you got 10 sets of...
gekko_ita <donowhatot...
donowhatotype@...
Feb 1, 2003 9:02 pm
2011
I hid in a corner and watched as J1939 was written and there were lots of points of view and lots of thing to take into consideration. At least they didn't...
Gordon Couger
gcouger@...
Feb 2, 2003 9:46 am
2012
Hi Nicola, For me it's not really clear what you mean. 1) if you have 10 objects to be transmitted over CANopen, normally the data size of each object is not 8...
Heinz-Juergen Oertel
oe@...
Feb 3, 2003 7:25 am
2013
Problem: Our CAN network exists of some CAN modules each running some specific application code. After key off, the modules need to continue to monitor some...
BYTTEBIER Ward
Yacht.Ward.Byttebier@...
Feb 3, 2003 7:42 am
2014
Hello Heinz, 1) I intend 10 sets of objects and not 10 objects; 2) I want to discuss about the differences between a variable mapping and a static mapping...
gekko_ita <donowhatot...
donowhatotype@...
Feb 3, 2003 9:01 am
2015
Hello everybody, I know this issue has been on the list before but I can not remember the result. Are there any standalone CAN controllers with 3,3V power...
jan.martens@...
Feb 4, 2003 7:57 am
2016
Hi, Jan, Here's a reprint of an earlier message. I hope it helps. Steve C. _________________________________________________________________________ Here's a...
Corrigan, Steve
s-corrigan1@...
Feb 4, 2003 1:20 pm
2017
Hello! I have some problems with the baudrate setting in the Fujitsu-16Bit- µC. With a baudrate bigger than 125kBAUD I get a BUS-OFF with the controller, but...
rumpie_rnk <Ralf.Neub...
Ralf.Neuber@...
Feb 4, 2003 2:23 pm
2018
Whether or not a module stays awake is not a question to ask of J1939; it is an applications level decision and J1939 is silent on that issue. Some of the...
Allen Pothoof
apothoof@...
Feb 4, 2003 3:11 pm
2019
Hello, I use the F497 derivate with the following settings (processor clock 16 MHz): 125 kBit: BTR = 0x071C 250 kBit: BTR = 0x031C Best regards, Uwe ... ...
Uwe Koppe
koppe@...
Feb 4, 2003 3:31 pm
2020
Jan: There exist two CAN 3.3V CAN controllers on the market. 1. OKI Semi's ML9620 (preliminary design -under development until 3Q, 2003) 2. Microchip's MPC2510...
Sanogo Hamed-HSANOGO1
Hamed.Sanogo@...
Feb 4, 2003 3:40 pm
2021
Hello, Europe Technologies provides µC based on ARM7 and including CAN controller. I/Os can be 3V3 or 5V. Three products are already avaible : easyCAN4,...
Olivier Mazuyer
olivier.mazuyer@...
Feb 4, 2003 4:09 pm
2022
The 3.3V issue with CAN controllers is precisely why we are moving to an FPGA solution... I would check out the available IP for CAN controllers g GE...
Woloschek, Steven J (...
Steven.Woloschek@...
Feb 4, 2003 6:32 pm
2023
Hi Ralf, I'm fairly new at the Fujitsu CAN settings, but using the bit calculation utility from fujitsu: http://www.fme.gsdc.de/pdf/bitmixer-v1-1.exe If you...
Ed Goldstein
ed@...
Feb 4, 2003 6:39 pm
2024
Ed, this should not only be related to Fujitsu. This very popular setting of bit timing registers is also used with Intel's 82527, Infineon Controllers - the...
Heinz-Jürgen Oertel
oe@...
Feb 4, 2003 10:32 pm
2025
Hi Ralf, I use Fujitsu MB90F543 controller, and for 250 Kbit BTR = 0x2B03. In the hardware manual for MB90F540 family (ver. 2.0) there are the next...
Marco Fiorotto
marco.fiorotto@...
Feb 5, 2003 8:14 am
2026
Hi, Folks, To guarantee the data consistency, does any node can force the retransmission of an erroneous message, while some other nodes have correctly...
Ting Wu
groupting@...
Feb 5, 2003 11:20 am
2027
There are 9 possible register combinations to achieve this bit rate with this system frequency. According to Fujitsu's CAN spec, TSEG2 should not be smaller...
Tang
xiong@...
Feb 5, 2003 11:53 am
2028
Hi Ting, Not true. "Data consistency" here implies that as long as one node is unhappy with the message received, all other nodes will be forced to discard the...
Tang
xiong@...
Feb 5, 2003 12:01 pm
2029
Ting, Yes, any node that detects an error can/must flag an error. The transmitter then must retransmit the message. Yes, this can lead to a high bus load,...
Allen Pothoof
apothoof@...
Feb 5, 2003 2:34 pm
2030
I am currently having problems initialising a TouCAN module on an MPC555. This is the first CAN driver I have written and I am struggling to understand what it...
Crolla Andrew L
ALCROLLA@...
Feb 6, 2003 5:34 pm
2031
Andy, See Motorola Application Note 1776 here: http://e-www.motorola.com/brdata/PDFDB/docs/AN1776.pdf Review function ain_toucan_init ( ), which calls the...
jeffrey.tenney@...
Feb 6, 2003 6:18 pm
2032
One other problem I that I have is that I wont be using interrupts. The MPC555's I am writing the driver for are onboard TTP Powernodes which run a time...
Crolla Andrew L
ALCROLLA@...
Feb 7, 2003 3:14 pm
2033
Hello does someone know where I can find such a part? Heinz -- with best regards / mit freundlichen Grüßen Heinz-Jürgen Oertel ...
Heinz-Juergen Oertel
oe@...
Feb 9, 2003 5:34 pm
2034
Hello I want to know much on LIN in comparison with CAN. Can anybody detail on LIN......... Thanks in advance Regards Dwarkanath ... Dwarkanath A.N. CG-Smith...
Dwarkanath
dwarkanath@...
Feb 10, 2003 12:16 pm
2035
Hi Dwarkanath, have a look at http://www.lin-subbus.org/ Best Regards / Mit freundlichen Gruessen Juergen Klueser ... Juergen Klueser Global Product Line...
"Klüser, Jürg...
Juergen.Klueser@...
Feb 10, 2003 12:31 pm
2036
Hello, here are some items (not exhaustive): CAN: max. data rate 1 MBaud LIN: max. data rate 20 kBaud CAN: multi-naster bus LIN: master-slave bus CAN: CRC code...
Bremicker Oliver
oliver.bremicker@...
Feb 10, 2003 12:42 pm
2037
Hello, I wonder if cause of this problem has been found ..... Regards, Robert Rozman ... From: "John Dammeyer" <johnd@...> To:...
Robert Rozman
rozman@...
Feb 10, 2003 1:54 pm
2038
Hi, Jason was going to write a report as soon as he was sure the problem was solved. I'll leave it for him. Cheers, John Dammeyer Wireless CAN with the CANRF...