Nabble - CAN Bus

Re: Absolute value in signals

2009-12-22T10:57:20Z

Thanks to all people.

I think the main problem has been solved.

I write a CAPL file similar to this one situated before the "data output" in the measurement setup window:

variables
{
int prueba;
int prueba2;
}
on message volante
{

prueba = $volante::Angulo_volante_cs;
prueba2 = $volante::Vel_volante_cs;
@Angulo_volante = (prueba & 0x8000) ? -0.04375*(prueba & 0x7fff) :
0.04375*(prueba & 0x7fff);
@Vel_volante = (prueba2 & 0x8000) ? -0.04375*(prueba2 & 0x7fff) :
0.04375*(prueba2 & 0x7fff);
output(this);
}

Where Angulo_volante and Vel_volante are two new float environment signals. Angulo_volante_cs and Vel_volante_cs were the original signals (Sign_bit:Absolute_value).
Now, I can see these environment signals in a data window and even in a log file.
The aspect of the log file is:

9.898590 1 C2 Rx d 8 E8 83 E8 03 00 00 00 00
9.950022 Angulo_volante := -43.75
9.950022 Vel_volante := 43.75

Is possible to avoid that these two lines would be written to the log file?

Merry Christmas and Happy New Year.

FRANCISCO FERNANDEZ LINERA
Area de Tecnología Electronica (DIEECS)
Universidad de Oviedo
Campus de Viesques - Edificio Departamental 3
33204 - Gijón
SPAIN
Phone: 34 985182565
Fax: 34 985182138
E-mail: linera@...

--- In CANbus@..., "John Dammeyer" <johnd@...> wrote:

>
> Hi Bram,
>
> It was early (for me) in the morning so I wasn't thinking overly
> efficiently... ;-)
>
> Thanks
>
> John
>
>
>
> Automation Artisans Inc.
> http://www.autoartisans.com/ELS/
> Ph. 1 250 544 4950
>
>
> > -----Original Message-----
> > From: canlist-owner@...
> > [mailto:canlist-owner@...] On
> > Behalf Of Bram Kerkhof
> > Sent: Tuesday, December 22, 2009 8:49 AM
> > To: canlist@...
> > Subject: RE: [CANLIST] Absolute value in signals
> >
> >
> > I'm just nitpicking here, but you can drop that last 0x7fff. A smart
> > compiler should drop it for you, but I'm not too sure how
> > smart CANoe is
> > exactly :-)... And just in case, I would add a 'u' after the masks.
> >
> > signedvalue = (invalue & 0x8000u) ? -(invalue & 0x7fffu) : invalue;
> >
> > (I've been busy with an embedded project lately, shaving off
> > unnecessary
> > code where I can find it ;-)
> >
> > cheers,
> > Bram
> >
> > -----Original Message-----
> > From: canlist-owner@...
> > [mailto:canlist-owner@...] On Behalf Of John
> > Dammeyer
> > Sent: dinsdag 22 december 2009 16:05
> > To: canlist@...
> > Subject: RE: [CANLIST] Absolute value in signals
> >
> > This should work...
> >
> > signedinvalue = (invalue & 0x8000) ? -(invalue & 0x7fff) : invalue &
> > 0x7fff;
> >
> > John
> >
> > Automation Artisans Inc.
> > http://www.autoartisans.com/ELS/
> > Ph. 1 250 544 4950
> >
> >
> > > -----Original Message-----
> > > From: canlist-owner@...
> > > [mailto:canlist-owner@...] On
> > > Behalf Of fflinera
> > > Sent: Tuesday, December 22, 2009 3:23 AM
> > > To: canlist@...
> > > Subject: [CANLIST] Absolute value in signals
> > >
> > >
> > > I am begginer using CANoe/CANalyzer.
> > >
> > > In a 2-byte CAN data, the information is:
> > > bit 16- variable sign (0-positive 1-negative)
> > > bit 15-0 Absolute value for the variable
> > > So, for instance, 8001h means -1 or 8010h means -16 or 0010
> > means 16.
> > > This signal is part of a CAN message and I am trying to show
> > > it in a data or graphics window in CANoe.
> > > If I use a 16-bit signed integer, It is no valid because we
> > > use a 2-complement arithmetic.
> > > If I use a 16-bit unsigned integer, it is no valid because,
> > > for instance, 8001h does not mean -1.
> > > I can use a 15-bit unsigned integer for the absolute value
> > > and 1-bit value table for positive or negative. But I should
> > > want the correct value (bit 16 multiplied by bit15-0).
> > > I am trying to use system variables or environment variables
> > > to show the variable with its right value in a data/graphic
> > > window. But I do not know how I must define.
> > > Someone can help me.
> > >
> > > --
> > > Archives and useful links: http://groups.yahoo.com/group/CANbus
> > > Subscribe and unsubscribe at www.vector-informatik.com/canlist/
> > > Report any problems to <canlist-owner@...>
> > >
> > >
> >
> > --
> > Archives and useful links: http://groups.yahoo.com/group/CANbus
> > Subscribe and unsubscribe at www.vector-informatik.com/canlist/
> > Report any problems to <canlist-owner@...>
> >
> > --
> > Archives and useful links: http://groups.yahoo.com/group/CANbus
> > Subscribe and unsubscribe at www.vector-informatik.com/canlist/
> > Report any problems to <canlist-owner@...>
> >
> >
>
> --
> Archives and useful links: http://groups.yahoo.com/group/CANbus
> Subscribe and unsubscribe at www.vector-informatik.com/canlist/
> Report any problems to <canlist-owner@...>
>

--
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RE: Absolute value in signals

2009-12-22T09:12:43Z

Hi Bram,

It was early (for me) in the morning so I wasn't thinking overly
efficiently... ;-)

Thanks

John

Automation Artisans Inc.
http://www.autoartisans.com/ELS/
Ph. 1 250 544 4950

> -----Original Message-----
> From: canlist-owner@...
> [mailto:canlist-owner@...] On
> Behalf Of Bram Kerkhof
> Sent: Tuesday, December 22, 2009 8:49 AM
> To: canlist@...
> Subject: RE: [CANLIST] Absolute value in signals
>
>
> I'm just nitpicking here, but you can drop that last 0x7fff. A smart
> compiler should drop it for you, but I'm not too sure how
> smart CANoe is
> exactly :-)... And just in case, I would add a 'u' after the masks.
>
> signedvalue = (invalue & 0x8000u) ? -(invalue & 0x7fffu) : invalue;
>
> (I've been busy with an embedded project lately, shaving off
> unnecessary
> code where I can find it ;-)
>
> cheers,
> Bram
>
> -----Original Message-----
> From: canlist-owner@...
> [mailto:canlist-owner@...] On Behalf Of John
> Dammeyer
> Sent: dinsdag 22 december 2009 16:05
> To: canlist@...
> Subject: RE: [CANLIST] Absolute value in signals
>
> This should work...
>
> signedinvalue = (invalue & 0x8000) ? -(invalue & 0x7fff) : invalue &
> 0x7fff;
>
> John
>
> Automation Artisans Inc.
> http://www.autoartisans.com/ELS/
> Ph. 1 250 544 4950
>
>
> > -----Original Message-----
> > From: canlist-owner@...
> > [mailto:canlist-owner@...] On
> > Behalf Of fflinera
> > Sent: Tuesday, December 22, 2009 3:23 AM
> > To: canlist@...
> > Subject: [CANLIST] Absolute value in signals
> >
> >
> > I am begginer using CANoe/CANalyzer.
> >
> > In a 2-byte CAN data, the information is:
> > bit 16- variable sign (0-positive 1-negative)
> > bit 15-0 Absolute value for the variable
> > So, for instance, 8001h means -1 or 8010h means -16 or 0010
> means 16.
> > This signal is part of a CAN message and I am trying to show
> > it in a data or graphics window in CANoe.
> > If I use a 16-bit signed integer, It is no valid because we
> > use a 2-complement arithmetic.
> > If I use a 16-bit unsigned integer, it is no valid because,
> > for instance, 8001h does not mean -1.
> > I can use a 15-bit unsigned integer for the absolute value
> > and 1-bit value table for positive or negative. But I should
> > want the correct value (bit 16 multiplied by bit15-0).
> > I am trying to use system variables or environment variables
> > to show the variable with its right value in a data/graphic
> > window. But I do not know how I must define.
> > Someone can help me.
> >
> > --
> > Archives and useful links: http://groups.yahoo.com/group/CANbus
> > Subscribe and unsubscribe at www.vector-informatik.com/canlist/
> > Report any problems to <canlist-owner@...>
> >
> >
>
> --
> Archives and useful links: http://groups.yahoo.com/group/CANbus
> Subscribe and unsubscribe at www.vector-informatik.com/canlist/
> Report any problems to <canlist-owner@...>
>
> --
> Archives and useful links: http://groups.yahoo.com/group/CANbus
> Subscribe and unsubscribe at www.vector-informatik.com/canlist/
> Report any problems to <canlist-owner@...>
>
>

--
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Subscribe and unsubscribe at www.vector-informatik.com/canlist/
Report any problems to <canlist-owner@...>

RE: Absolute value in signals

2009-12-22T08:49:02Z

I'm just nitpicking here, but you can drop that last 0x7fff. A smart
compiler should drop it for you, but I'm not too sure how smart CANoe is
exactly :-)... And just in case, I would add a 'u' after the masks.

signedvalue = (invalue & 0x8000u) ? -(invalue & 0x7fffu) : invalue;

(I've been busy with an embedded project lately, shaving off unnecessary
code where I can find it ;-)

cheers,
Bram

-----Original Message-----
From: canlist-owner@...
[mailto:canlist-owner@...] On Behalf Of John
Dammeyer
Sent: dinsdag 22 december 2009 16:05
To: canlist@...
Subject: RE: [CANLIST] Absolute value in signals

This should work...

signedinvalue = (invalue & 0x8000) ? -(invalue & 0x7fff) : invalue &
0x7fff;

John

Automation Artisans Inc.
http://www.autoartisans.com/ELS/
Ph. 1 250 544 4950

> -----Original Message-----
> From: canlist-owner@...
> [mailto:canlist-owner@...] On
> Behalf Of fflinera
> Sent: Tuesday, December 22, 2009 3:23 AM
> To: canlist@...
> Subject: [CANLIST] Absolute value in signals
>
>
> I am begginer using CANoe/CANalyzer.
>
> In a 2-byte CAN data, the information is:
> bit 16- variable sign (0-positive 1-negative)
> bit 15-0 Absolute value for the variable
> So, for instance, 8001h means -1 or 8010h means -16 or 0010 means 16.
> This signal is part of a CAN message and I am trying to show
> it in a data or graphics window in CANoe.
> If I use a 16-bit signed integer, It is no valid because we
> use a 2-complement arithmetic.
> If I use a 16-bit unsigned integer, it is no valid because,
> for instance, 8001h does not mean -1.
> I can use a 15-bit unsigned integer for the absolute value
> and 1-bit value table for positive or negative. But I should
> want the correct value (bit 16 multiplied by bit15-0).
> I am trying to use system variables or environment variables
> to show the variable with its right value in a data/graphic
> window. But I do not know how I must define.
> Someone can help me.
>
> --
> Archives and useful links: http://groups.yahoo.com/group/CANbus
> Subscribe and unsubscribe at www.vector-informatik.com/canlist/
> Report any problems to <canlist-owner@...>
>
>

--
Archives and useful links: http://groups.yahoo.com/group/CANbus
Subscribe and unsubscribe at www.vector-informatik.com/canlist/
Report any problems to <canlist-owner@...>

--
Archives and useful links: http://groups.yahoo.com/group/CANbus
Subscribe and unsubscribe at www.vector-informatik.com/canlist/
Report any problems to <canlist-owner@...>

RE: Absolute value in signals

2009-12-22T07:05:04Z

This should work...

signedinvalue = (invalue & 0x8000) ? -(invalue & 0x7fff) : invalue &
0x7fff;

John

Automation Artisans Inc.
http://www.autoartisans.com/ELS/
Ph. 1 250 544 4950

--
Archives and useful links: http://groups.yahoo.com/group/CANbus
Subscribe and unsubscribe at www.vector-informatik.com/canlist/
Report any problems to <canlist-owner@...>

RE: Absolute value in signals

2009-12-22T04:45:11Z

Hello,

this seems to be a quite uncommon data type.
My only idea in the moment is using a 15 bit unsigned plus a 1 bit signed variable. You can take both in a CAPL program, convert it e.g. to a 32 bit signed and write it to an environment variable which you can display in trace, data, graph...

Best regards
Juergen

> -----Original Message-----
> From: canlist-owner@...
> [mailto:canlist-owner@...] On
> Behalf Of fflinera
> Sent: Tuesday, December 22, 2009 12:23 PM
> To: canlist@...
> Subject: [CANLIST] Absolute value in signals
>
> I am begginer using CANoe/CANalyzer.
>
> In a 2-byte CAN data, the information is:
> bit 16- variable sign (0-positive 1-negative)
> bit 15-0 Absolute value for the variable
> So, for instance, 8001h means -1 or 8010h means -16 or 0010 means 16.
> This signal is part of a CAN message and I am trying to show
> it in a data or graphics window in CANoe.
> If I use a 16-bit signed integer, It is no valid because we
> use a 2-complement arithmetic.
> If I use a 16-bit unsigned integer, it is no valid because,
> for instance, 8001h does not mean -1.
> I can use a 15-bit unsigned integer for the absolute value
> and 1-bit value table for positive or negative. But I should
> want the correct value (bit 16 multiplied by bit15-0).
> I am trying to use system variables or environment variables
> to show the variable with its right value in a data/graphic
> window. But I do not know how I must define.
> Someone can help me.
>
> --
> Archives and useful links: http://groups.yahoo.com/group/CANbus
> Subscribe and unsubscribe at www.vector-informatik.com/canlist/
> Report any problems to <canlist-owner@...>
>

--
Archives and useful links: http://groups.yahoo.com/group/CANbus
Subscribe and unsubscribe at www.vector-informatik.com/canlist/
Report any problems to <canlist-owner@...>

Absolute value in signals

2009-12-22T03:22:47Z

I am begginer using CANoe/CANalyzer.

In a 2-byte CAN data, the information is:
bit 16- variable sign (0-positive 1-negative)
bit 15-0 Absolute value for the variable
So, for instance, 8001h means -1 or 8010h means -16 or 0010 means 16.
This signal is part of a CAN message and I am trying to show it in a data or graphics window in CANoe.
If I use a 16-bit signed integer, It is no valid because we use a 2-complement arithmetic.
If I use a 16-bit unsigned integer, it is no valid because, for instance, 8001h does not mean -1.
I can use a 15-bit unsigned integer for the absolute value and 1-bit value table for positive or negative. But I should want the correct value (bit 16 multiplied by bit15-0).
I am trying to use system variables or environment variables to show the variable with its right value in a data/graphic window. But I do not know how I must define.
Someone can help me.

--
Archives and useful links: http://groups.yahoo.com/group/CANbus
Subscribe and unsubscribe at www.vector-informatik.com/canlist/
Report any problems to <canlist-owner@...>

RE: Environment vs system variables in CAPL

2009-12-14T01:24:59Z

Hello Jürgen,

I discussed with the person who needed this information and we do have some PEX-licences already.
In this case they would occasionally want to use the same tool for logging and raw can data analysis (trace), hence the question concerning Canalyzer.

isto
btw, Your response time is really impressive<g>

Klüser, Jürgen	From:	Klüser, Jürgen <Juergen.Klueser@...>
	To:	<canlist@...>
	Cc:
	Date:	11.12.2009 13:46
	Subject:	RE: [CANLIST] Environment vs system variables in CAPL

Hello Isto,

a short extract from the CANoe-Help:
In CANoe system variables can be used for modelling internal parameters.
In contrast to environment variables, system variables describe neither external input/output signals of a node nor they are used for communication of signals between nodes in a real network Instead, system variables are used for development and testing since they provide the opportunity to change and to analyze internal variables and parameters. They are also used to indicate signals in CANoe which are not defined in a database and which were not received via a network (e.g. I/O signals).

The help provides further details and some examples.

For production testing the main focus typically is just running the developped panels and test cases, allowing the user to control the test and get the test results, but not to change the models etc. Vector offers a version CANoe.PEX for exactly this purpose.
It releases the testers from the many details, that developpers need. And the price is very attractive.

Maybe you like to have a look to http://www.vector.com/vi_canoe_options_en.html. There you also will find a link to a feature matrix comparing CANoe.full/run/pex and CANalyzer.

Best Regards / Mit freundlichen Gruessen
Juergen Klueser
-------------------------------------------------
Director PON
Open Networking Tools and Components
Vector Informatik GmbH
Ingersheimer Strasse 24
D-70499 Stuttgart, Germany
Phone: +49 711 80670-202
Fax: +49 711 80670-249
Email: juergen.klueser@...
Internet: http://www.vector-informatik.de
http://www.canopen-solutions.com
http://www.vector.com/car2x
-------------------------------------------------
Get a fully functional EDS editor - free-of-charge!
Visit us at http://www.canopen-forum.com

Besuchen Sie uns auf folgenden Veranstaltungen /
Visit Vector at important events:
http://www.vector-worldwide.com/vi_events_en.html

From: canlist-owner@... [canlist-owner@...] On Behalf Of isto.virtanen@...
Sent: Friday, December 11, 2009 11:34 AM
To: canlist@...
Subject: [CANLIST] Environment vs system variables in CAPL

Greetings,

we have CAPL-panels in production testing and we are about to buy more tools (CANOE / Canalyzer Pro) for the purpose.
Question is, what is the difference between system and environent variables in CAPL-programming?
Canalyzer 7.2 seems to support only system variables, but would otherwise be suitable for our purposes.

isto

This e-mail is confidential and it is intended only for the addressees. Any review, dissemination, distribution, or copying of this message by persons or entities other than the intended recipient is prohibited. If you have received this e-mail in error, kindly notify us immediately by telephone or e-mail and delete the message from your system. The sender does not accept liability for any errors or omissions in the contents of this message which may arise as a result of the e-mail transmission.

RE: Environment vs system variables in CAPL

2009-12-11T03:10:38Z

Hello Isto,

a short extract from the CANoe-Help:

In CANoe system variables can be used for modelling internal parameters.

In contrast to environment variables, system variables describe neither external input/output signals of a node nor they are used for communication of signals between nodes in a real network Instead, system variables are used for development and testing since they provide the opportunity to change and to analyze internal variables and parameters. They are also used to indicate signals in CANoe which are not defined in a database and which were not received via a network (e.g. I/O signals).

The help provides further details and some examples.

For production testing the main focus typically is just running the developped panels and test cases, allowing the user to control the test and get the test results, but not to change the models etc. Vector offers a version CANoe.PEX for exactly this purpose.

It releases the testers from the many details, that developpers need. And the price is very attractive.

Maybe you like to have a look to http://www.vector.com/vi_canoe_options_en.html. There you also will find a link to a feature matrix comparing CANoe.full/run/pex and CANalyzer.

Best Regards / Mit freundlichen Gruessen

Juergen Klueser

-------------------------------------------------

Director PON

Open Networking Tools and Components

Vector Informatik GmbH

Ingersheimer Strasse 24

D-70499 Stuttgart, Germany

Phone: +49 711 80670-202

Fax: +49 711 80670-249

Email: juergen.klueser@...

Internet: http://www.vector-informatik.de

http://www.canopen-solutions.com

http://www.vector.com/car2x

-------------------------------------------------

Get a fully functional EDS editor - free-of-charge!

Visit us at http://www.canopen-forum.com

Besuchen Sie uns auf folgenden Veranstaltungen /

Visit Vector at important events:

http://www.vector-worldwide.com/vi_events_en.html

From: canlist-owner@... [mailto:canlist-owner@...] On Behalf Of isto.virtanen@...
Sent: Friday, December 11, 2009 11:34 AM
To: canlist@...
Subject: [CANLIST] Environment vs system variables in CAPL

Greetings,

we have CAPL-panels in production testing and we are about to buy more tools (CANOE / Canalyzer Pro) for the purpose.
Question is, what is the difference between system and environent variables in CAPL-programming?
Canalyzer 7.2 seems to support only system variables, but would otherwise be suitable for our purposes.

isto
This e-mail is confidential and it is intended only for the addressees. Any review, dissemination, distribution, or copying of this message by persons or entities other than the intended recipient is prohibited. If you have received this e-mail in error, kindly notify us immediately by telephone or e-mail and delete the message from your system. The sender does not accept liability for any errors or omissions in the contents of this message which may arise as a result of the e-mail transmission.

Environment vs system variables in CAPL

2009-12-11T02:33:51Z

Greetings,

we have CAPL-panels in production testing and we are about to buy more tools (CANOE / Canalyzer Pro) for the purpose.
Question is, what is the difference between system and environent variables in CAPL-programming?
Canalyzer 7.2 seems to support only system variables, but would otherwise be suitable for our purposes.

isto

CAN CMOS image sensor

2009-12-08T16:31:40Z

Hi,

We are currently using micron CMOS digital image sensor for capturing images. Just curious to know is there any OEM that has CMOS digital image sensor on CAN.

Thanks

Ram

AW: PCI-104 cards that can do CAN at 2Mbps

2009-12-04T08:25:51Z

Michael:

We did a short test with our PC/104plus card. In a quick test on a short cable it works @ 2 Mbit/s.

http://www.softing.com/home/en/industrial-automation/products/can-bus/interface-cards/can/pc-104plus-pro-2.php?navanchor=3010080

Just let me know if this is of interest for you. Maybe we can discuss this further off the list.

Best regards,

Christian Bräutigam
Product Manager Industrial Communication

Softing AG
Richard-Reitzner-Allee 6
D-85540 Haar
Tel. +49 (0) 89 456 56-328
Fax +49 (0) 89 456 56-399

E-Mail:christian.braeutigam@...
Softing AG, Richard-Reitzner-Allee 6, D-85540 Haar, Internet: http:// www.softing.com
Softing Aktiengesellschaft: Vorsitzender des Aufsichtsrates: Dr. Horst Schiessl; Vorstand: Dr. Wolfgang Trier (Vorsitzender), Dr. Michael Siedentop
Sitz: Haar bei München, Amtsgericht München, HRB 127 604, USt-ID: DE186893974 WEEE Reg. Nr. DE 39257114

Von: canlist-owner@... [mailto:canlist-owner@...] Im Auftrag von Michael J. Noone
Gesendet: Mittwoch, 2. Dezember 2009 15:21
An:
Betreff: [CANLIST] PCI-104 cards that can do CAN at 2Mbps

Hi there – does anybody know if any PCI-104 CAN controllers out there that can operate at 2Mbps? Ideally the card would have at least two, but better yet 4, CAN controllers. I am well aware that this is out of spec… but sometimes you gotta do what you gotta do J

Thanks!

Michael J. Noone
Boston Dynamics

Re: EMC of unshielded CAN bus?

2009-12-04T06:01:48Z

JFTR:

Using two TJA1050 operating at 1MBit/s over 20m unshielded star quad
cable, transmission errors started to happen at more than 2kV EFT in
the capacitive clamp (grounded DUT).

I could test BCI to only 3V and 15MHz but I expect no problems since
the calculated common mode voltage should be well below the allowed
limits.

So immunity doesn't seem to be an issue.

Oliver
--
Oliver Betz, Muenchen

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Re: PCI-104 cards that can do CAN at 2Mbps

2009-12-04T05:14:53Z

Michael J. Noone wrote:

Hi there - does anybody know if any PCI-104 CAN controllers out there that
can operate at 2Mbps? Ideally the card would have at least two, but better
yet 4, CAN controllers. I am well aware that this is out of spec. but
sometimes you gotta do what you gotta do :-)

Hi Michael,
we have a product series of CAN-Ethernet-Gateways with different numbers of CAN ports (1,2 and 4 ports: http://www.anagate.de/products/can-ethernet-gateways.htm). These devices are not PCI-104 modules, but can be accessed via standard LAN interface from a PC or PLC. Maybe this will be also interesting for you.

Concerning to run a CAN bus outside the specifaction, I can give you a hint. We using MCP2515 controllers on our devices, which can be set to higher baudrates as 1Mbit although it not inside the controller spec. We have made some internal tests with higher baudrates some days ago:
- 1,5Mbit seem to work stable - we can send and recieve messages, but
- 2 Mbit is not working well, we can send, but the receiving device has problems

Maybe this problem can be fixed, if it is a problem on our device firmware, and not a problem of the controller !!

By the way, if I understand right, you want to connect at 2Mbit on 4 channels on a single PC you will need a fast device which can process about 64000 telegrams per second in full bus utilization !!!!

best regards
Axel Schmidt
Analytica GmbH

PCI-104 cards that can do CAN at 2Mbps

2009-12-02T06:20:47Z

Thanks!

Michael J. Noone
Boston Dynamics

Re: CAN Id is trucated

2009-12-02T02:21:49Z

Ravi,

this is pretty Socket CAN specific, post your question to
socketcan-users@...

Sebastian

Ravi Kumar Madhuranthakam schrieb:

> HI ,
>
>
>
> I am using socket CAN with Atmel 9263 board , And CAN Messages Extended
> ID is truncated when I send message using PCAN USB- analyzer .
>
> I am using read and write calls for message sending and receiving in the
> board.
>
>
>
> I am not using any filters and using CAN_RAW .
>
> Anybody has idea on this issue ?
>
>
>
>
>
> My Code looks like this
>
>
>
> #include <sys/types.h>
>
> #include <sys/socket.h>
>
> #include <sys/ioctl.h>
>
> #include <net/if.h>
>
>
>
> #include <linux/can.h>
>
> #include <linux/can/raw.h>
>
> #include <string.h>
>
>
>
> /* At time of writing, these constants are not defined in the headers */
>
> #ifndef PF_CAN
>
> #define PF_CAN 29
>
> #endif
>
>
>
> #ifndef AF_CAN
>
> #define AF_CAN PF_CAN
>
> #endif
>
>
>
> /* ... */
>
>
>
> /* Somewhere in your app */
>
>
>
> /* Create the socket */
>
> int skt = socket( PF_CAN, SOCK_RAW, CAN_RAW );
>
>
>
> /* Locate the interface you wish to use */
>
> struct ifreq ifr;
>
> strcpy(ifr.ifr_name, "can0");
>
> ioctl(skt, SIOCGIFINDEX, &ifr); /* ifr.ifr_ifindex gets filled
>
> * with that device's index */
>
>
>
> /* Select that CAN interface, and bind the socket to it. */
>
> struct sockaddr_can addr;
>
> addr.can_family = AF_CAN;
>
> addr.can_ifindex = ifr.ifr_ifindex;
>
> bind( skt, (struct sockaddr*)&addr, sizeof(addr) );
>
>
>
> /* Send a message to the CAN bus */
>
> struct can_frame frame;
>
> frame.can_id = 0x123;
>
> strcpy( &frame.data, "foo" );
>
> frame.can_dlc = strlen( &frame.data );
>
> int bytes_sent = write( skt, &frame, sizeof(frame) );
>
>
>
> /* Read a message back from the CAN bus */
>
> int bytes_read = read( skt, &frame, sizeof(frame) );
>
>
>
>
>
>
>
>
>
>
> ------------------------------------------------------------------------
> http://www.mindtree.com/email/disclaimer.html

--
Mit freundlichen Gruessen/Best Regards,

Sebastian Haas
Software Entwicklung/Software Development

Phone: +49-9451-9432-22
Fax : +49-9451-9432-12
Email: haas@...
Web : www.ems-wuensche.com
--
EMS Dr. Thomas Wuensche e.K.
Sonnenhang 3
85304 Ilmmuenster
HRA Neuburg a.d. Donau, HR-Nr. 70.106
Phone: +49-8441-490260
Fax : +49-8441-81860
http://www.ems-wuensche.com
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CAN Id is trucated

2009-12-01T19:52:08Z

HI ,

I am using socket CAN with Atmel 9263 board , And CAN Messages Extended ID is truncated when I send message using PCAN USB- analyzer .

I am using read and write calls for message sending and receiving in the board.

I am not using any filters and using CAN_RAW .

Anybody has idea on this issue ?

My Code looks like this

#include <sys/types.h>

#include <sys/socket.h>

#include <sys/ioctl.h>

#include <net/if.h>

#include <linux/can.h>

#include <linux/can/raw.h>

#include <string.h>

/* At time of writing, these constants are not defined in the headers */

#ifndef PF_CAN

#define PF_CAN 29

#endif

#ifndef AF_CAN

#define AF_CAN PF_CAN

#endif

/* ... */

/* Somewhere in your app */

/* Create the socket */

int skt = socket( PF_CAN, SOCK_RAW, CAN_RAW );

/* Locate the interface you wish to use */

struct ifreq ifr;

strcpy(ifr.ifr_name, "can0");

ioctl(skt, SIOCGIFINDEX, &ifr); /* ifr.ifr_ifindex gets filled

* with that device's index */

/* Select that CAN interface, and bind the socket to it. */

struct sockaddr_can addr;

addr.can_family = AF_CAN;

addr.can_ifindex = ifr.ifr_ifindex;

bind( skt, (struct sockaddr*)&addr, sizeof(addr) );

/* Send a message to the CAN bus */

struct can_frame frame;

frame.can_id = 0x123;

strcpy( &frame.data, "foo" );

frame.can_dlc = strlen( &frame.data );

int bytes_sent = write( skt, &frame, sizeof(frame) );

/* Read a message back from the CAN bus */

int bytes_read = read( skt, &frame, sizeof(frame) );

http://www.mindtree.com/email/disclaimer.html

testing sampling point settings

2009-11-27T01:20:55Z

Hi,
I have a CANopen node on which I need to test the sampling point settings.
CANopen DSP 301 v4.2 defines sampling point on 1Mbps as valid 75% to 90%
and recommended 87,5%

How can I test the sampling point?

I guess if one would use 25m cable on 1Mbps and has to early sampling
point, one will start to get error frames. But this is not a practical
way to test the sampling point on 10kbps when the cable length should be
~5000m.

Does anybody have any idea on how to test the sampling point setting in
a practical way.

Br,

--
Bertil BÄCK R&D Manager Hardware
T +358 6 357 6305, M +358 50 588 6895, F +358 6 357 6320
bertil.back@..., www.tke.fi

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Re: Re: Which connectors are recommended?

2009-11-18T05:33:23Z

Hello Michelle,

Molex (Brad Harrison) has some manufacturing and development in Germany (Bretten) and manufacturing in Poland.
To be honest, I havent got a faintest idea on their network in Germany.
In case You need a connection to Molex/distributor, I think I can arrange one.
Send me a direct email.

isto

Michelle Konzack	From:	Michelle Konzack <michelle.konzack@...>
	To:	canlist@...
	Cc:
	Date:	18.11.2009 15:14
	Subject:	[CANLIST] Re: Which connectors are recommended?

Hello Isto, Am 2009-11-18 09:52:05, schrieb isto.virtanen@...: > Hello Michelle, > > In case Your environment is not extremely bad, I'd go for M12. > It is widely used e.g. in construction machinery. > Connector is fairly good, although it is meant only for assembly purposes, > not to get opened and closed dozens of times. This is perfect. > Batch cables are available from many suppliers and thus pricing is also > pretty good. Then I have to find a supplier/manufactuer/distributor in France/Germany since I do not know the connectors. > You can also power small current units through the connector. > However, You must pay attention on the short circuit protection since wire > sizes are usually 0,34/0,5mm2 and with longer cables (above 10m) standard > slow circuit breakers possibly dont operate at all. > We have made some tests with 0.5mm2 cable with length of 25m having > complete short circuit at the other end. After half an hour circuit was > still closed<g> > Based on these experiences we have selected a special 2A breaker for this > use. Interesting information. > In case You need more power, You could go to thick devicenet cabling > with7/8? connector. Most stuff has under 0.5A. > You could try >http://www.lumberg-automation.com/main/common/serie.asp?ser=A05&cat=3&cat3=_2&lang=engThis does not work (MS IIS Error; forbidden directory access) and if I choose only the domain I am redirected to a badly translated german websitehttp://venlo.netzgiganten.de/(the website is a mixup of german and english) :-/ I think, I wil bother/blame the webmaster a little bit... :-D However, I have checked Belden/Lumberg and contacted them with an inquiry for suitable CANopen/M1 products. >http://www.woodhead.com/products/brad/bradconnectivity/connectorscordsets/bhnetworkmedia/Thanks, Greetings and nice Day/Evening Michelle Konzack Electronic Engineer Tamay Dogan Network Debian GNU/Linux Consultant -- Linux-User #280138 with the Linux Counter,http://counter.li.org/##################### Debian GNU/Linux Consultant ##################### <http://www.tamay-dogan.net/> Michelle Konzack <http://www.can4linux.org/> Apt. 917 <http://www.flexray4linux.org/> 50, rue de Soultz Jabber linux4michelle@... 67100 Strabourg/France IRC #Debian (irc.icq.com) Tel. DE: +49 177 9351947 ICQ #328449886 Tel. FR: +33 6 61925193 [attachment "signature.pgp" deleted by Isto Virtanen/1181/SANDVIK]

Re: Which connectors are recommended?

2009-11-18T04:36:38Z

Hello Isto,

Am 2009-11-18 09:52:05, schrieb isto.virtanen@...:
> Hello Michelle,
>
> In case Your environment is not extremely bad, I'd go for M12.
> It is widely used e.g. in construction machinery.
> Connector is fairly good, although it is meant only for assembly purposes,
> not to get opened and closed dozens of times.

This is perfect.

> Batch cables are available from many suppliers and thus pricing is also
> pretty good.

Then I have to find a supplier/manufactuer/distributor in France/Germany
since I do not know the connectors.

> You can also power small current units through the connector.
> However, You must pay attention on the short circuit protection since wire
> sizes are usually 0,34/0,5mm2 and with longer cables (above 10m) standard
> slow circuit breakers possibly dont operate at all.
> We have made some tests with 0.5mm2 cable with length of 25m having
> complete short circuit at the other end. After half an hour circuit was
> still closed<g>
> Based on these experiences we have selected a special 2A breaker for this
> use.

Interesting information.

> In case You need more power, You could go to thick devicenet cabling
> with7/8? connector.

Most stuff has under 0.5A.

> You could try
> http://www.lumberg-automation.com/main/common/serie.asp?ser=A05&cat=3&cat3=_2&lang=eng

This does not work (MS IIS Error; forbidden directory access) and if I
choose only the domain I am redirected to a badly translated german
website http://venlo.netzgiganten.de/ (the website is a mixup of german
and english) :-/

I think, I wil bother/blame the webmaster a little bit... :-D

However, I have checked Belden/Lumberg and contacted them with an
inquiry for suitable CANopen/M1 products.

> http://www.woodhead.com/products/brad/bradconnectivity/connectorscordsets/bhnetworkmedia/

Thanks, Greetings and nice Day/Evening
Michelle Konzack
Electronic Engineer
Tamay Dogan Network
Debian GNU/Linux Consultant

--
Linux-User #280138 with the Linux Counter, http://counter.li.org/
##################### Debian GNU/Linux Consultant #####################
<http://www.tamay-dogan.net/> Michelle Konzack
<http://www.can4linux.org/> Apt. 917
<http://www.flexray4linux.org/> 50, rue de Soultz
Jabber linux4michelle@... 67100 Strabourg/France
IRC #Debian (irc.icq.com) Tel. DE: +49 177 9351947
ICQ #328449886 Tel. FR: +33 6 61925193

signature.pgp (196 bytes) Download Attachment

Re: Which connectors are recommended?

2009-11-17T23:52:05Z

Hello Michelle,

In case Your environment is not extremely bad, I'd go for M12.
It is widely used e.g. in construction machinery.
Connector is fairly good, although it is meant only for assembly purposes, not to get opened and closed dozens of times.
Batch cables are available from many suppliers and thus pricing is also pretty good.

You can also power small current units through the connector.
However, You must pay attention on the short circuit protection since wire sizes are usually 0,34/0,5mm2 and with longer cables (above 10m) standard slow circuit breakers possibly dont operate at all.
We have made some tests with 0.5mm2 cable with length of 25m having complete short circuit at the other end. After half an hour circuit was still closed<g>
Based on these experiences we have selected a special 2A breaker for this use.

In case You need more power, You could go to thick devicenet cabling with7/8” connector.

You could try
http://www.lumberg-automation.com/main/common/serie.asp?ser=A05&cat=3&cat3=_2&lang=eng
http://www.woodhead.com/products/brad/bradconnectivity/connectorscordsets/bhnetworkmedia/

isto

Michelle Konzack	From:	Michelle Konzack <michelle.konzack@...>
	To:	CAN List <canlist@...>
	Cc:
	Date:	18.11.2009 02:16
	Subject:	[CANLIST] Which connectors are recommended?

Hello, I have 24V Devices which are now controlled over CAN and mostly it is working already. Now I like to know, which connectors are recommended for the CAN-Bus. I need mostly automotive versions, some of the devices need at least IP67 and I was already on the website of "Tyco Electronics" looking for connectors but I gaved up after 6 hours of search. Any suggestions? Thanks, Greetings and nice Day/Evening Michelle Konzack Electronic Engineer Tamay Dogan Network Debian GNU/Linux Consultant -- Linux-User #280138 with the Linux Counter,http://counter.li.org/##################### Debian GNU/Linux Consultant ##################### <http://www.tamay-dogan.net/> Michelle Konzack <http://www.can4linux.org/> Apt. 917 <http://www.flexray4linux.org/> 50, rue de Soultz Jabber linux4michelle@... 67100 Strabourg/France IRC #Debian (irc.icq.com) Tel. DE: +49 177 9351947 ICQ #328449886 Tel. FR: +33 6 61925193 [attachment "signature.pgp" deleted by Isto Virtanen/1181/SANDVIK]

Re: Which connectors are recommended?

2009-11-17T18:17:07Z

I have found the button by examing the Souce Code of the Webpage. Maybe
it should be redesigned... The button is hidden in the front of

CiA® and CANopen® are registered Community Trademarks of...

at the end of the Page and I can reach the button, if I disable the CSS
Stylesheet.

Thanks, Greetings and nice Day/Evening
Michelle Konzack
Electronic Engineer
Tamay Dogan Network
Debian GNU/Linux Consultant

--
Linux-User #280138 with the Linux Counter, http://counter.li.org/
##################### Debian GNU/Linux Consultant #####################
<http://www.tamay-dogan.net/> Michelle Konzack
<http://www.can4linux.org/> Apt. 917
<http://www.flexray4linux.org/> 50, rue de Soultz
Jabber linux4michelle@... 67100 Strabourg/France
IRC #Debian (irc.icq.com) Tel. DE: +49 177 9351947
ICQ #328449886 Tel. FR: +33 6 61925193

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RE: Re: Which connectors are recommended?

2009-11-17T18:02:35Z

Michelle,

OK, I see. Once you fill in the info boxes, they send it to you in a couple
of days.

Still, you do get it.

Cheers,
Steve C.

-----Original Message-----
From: canlist-owner@...
[mailto:canlist-owner@...] On Behalf Of Michelle
Konzack
Sent: Tuesday, November 17, 2009 7:21 PM
To: canlist@...
Subject: [CANLIST] Re: Which connectors are recommended?

Hello Steve,

thankyou for your fast answer, but there is a problem because I can not
download anything. I see, that only members can download directly, so I
assumed, I hvae to check the boxes at the documents and there is a
Button to click to get it, but nothing is there...

I was already there for 2-3 wesks or so, and it was the same problem.

I was interested in:

CiA 303-1 DR V1.6: CANopen additional specification Part 1: Cabling and
connector pin assignment IGCO_303_1v01060001.pdf

CiA 418 DS V1.0.1: CANopen device profile for battery modules
IGCO_418v01000102.pdf

CiA 419 DS V1.0.1: CANopen device profile for battery charger
IGCO_419v01000102.pdf

and yes, I am already on the bottom of the page. Is there a problem?

Thanks, Greetings and nice Day/Evening
Michelle Konzack
Electronic Engineer
Tamay Dogan Network
Debian GNU/Linux Consultant

Am 2009-11-17 18:19:38, schrieb Steve Corrigan:
> Hello Michelle,
>
> Go to the CiA website and look under downloads for CiA 303-1.
> Everything you ever wanted to know is there for free.
>
> http://www.can-cia.org/index.php?id=440
>
> Cheers,
> Steve C.
------------------------ END OF REPLIED MESSAGE ------------------------

--
Linux-User #280138 with the Linux Counter, http://counter.li.org/
##################### Debian GNU/Linux Consultant #####################
<http://www.tamay-dogan.net/> Michelle Konzack
<http://www.can4linux.org/> Apt. 917
<http://www.flexray4linux.org/> 50, rue de Soultz
Jabber linux4michelle@... 67100 Strabourg/France
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Re: Which connectors are recommended?

2009-11-17T17:20:42Z

Hello Steve,

thankyou for your fast answer, but there is a problem because I can not
download anything. I see, that only members can download directly, so I
assumed, I hvae to check the boxes at the documents and there is a
Button to click to get it, but nothing is there...

I was already there for 2-3 wesks or so, and it was the same problem.

I was interested in:

CiA 303-1 DR V1.6: CANopen additional specification
Part 1: Cabling and connector pin assignment
IGCO_303_1v01060001.pdf

CiA 418 DS V1.0.1: CANopen device profile for battery modules
IGCO_418v01000102.pdf

CiA 419 DS V1.0.1: CANopen device profile for battery charger
IGCO_419v01000102.pdf

and yes, I am already on the bottom of the page. Is there a problem?

Thanks, Greetings and nice Day/Evening
Michelle Konzack
Electronic Engineer
Tamay Dogan Network
Debian GNU/Linux Consultant

Am 2009-11-17 18:19:38, schrieb Steve Corrigan:
> Hello Michelle,
>
> Go to the CiA website and look under downloads for CiA 303-1. Everything
> you ever wanted to know is there for free.
>
> http://www.can-cia.org/index.php?id=440
>
> Cheers,
> Steve C.
------------------------ END OF REPLIED MESSAGE ------------------------

--
Linux-User #280138 with the Linux Counter, http://counter.li.org/
##################### Debian GNU/Linux Consultant #####################
<http://www.tamay-dogan.net/> Michelle Konzack
<http://www.can4linux.org/> Apt. 917
<http://www.flexray4linux.org/> 50, rue de Soultz
Jabber linux4michelle@... 67100 Strabourg/France
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Netburner CB34-EX

2009-11-17T16:26:32Z

anybody out there having experience with the freescale MC5234 based
Netburner CB34-EX (CAN-Ethernet module) ?

thanks
Pat

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RE: Which connectors are recommended?

2009-11-17T16:19:38Z

Hello Michelle,

Go to the CiA website and look under downloads for CiA 303-1. Everything
you ever wanted to know is there for free.

http://www.can-cia.org/index.php?id=440

Cheers,
Steve C.

-----Original Message-----
From: canlist-owner@...
[mailto:canlist-owner@...] On Behalf Of Michelle
Konzack
Sent: Tuesday, November 17, 2009 5:37 PM
To: CAN List
Subject: [CANLIST] Which connectors are recommended?

Hello,

I have 24V Devices which are now controlled over CAN and mostly it is
working already.

Now I like to know, which connectors are recommended for the CAN-Bus.

I need mostly automotive versions, some of the devices need at least
IP67 and I was already on the website of "Tyco Electronics" looking for
connectors but I gaved up after 6 hours of search.

Any suggestions?

Thanks, Greetings and nice Day/Evening
Michelle Konzack
Electronic Engineer
Tamay Dogan Network
Debian GNU/Linux Consultant

--
Linux-User #280138 with the Linux Counter, http://counter.li.org/
##################### Debian GNU/Linux Consultant #####################
<http://www.tamay-dogan.net/> Michelle Konzack
<http://www.can4linux.org/> Apt. 917
<http://www.flexray4linux.org/> 50, rue de Soultz
Jabber linux4michelle@... 67100 Strabourg/France
IRC #Debian (irc.icq.com) Tel. DE: +49 177 9351947
ICQ #328449886 Tel. FR: +33 6 61925193

--
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Subscribe and unsubscribe at www.vector-informatik.com/canlist/
Report any problems to <canlist-owner@...>

Which connectors are recommended?

2009-11-17T15:36:37Z

Hello,

I have 24V Devices which are now controlled over CAN and mostly it is
working already.

Now I like to know, which connectors are recommended for the CAN-Bus.

I need mostly automotive versions, some of the devices need at least
IP67 and I was already on the website of "Tyco Electronics" looking for
connectors but I gaved up after 6 hours of search.

Any suggestions?

Thanks, Greetings and nice Day/Evening
Michelle Konzack
Electronic Engineer
Tamay Dogan Network
Debian GNU/Linux Consultant

--
Linux-User #280138 with the Linux Counter, http://counter.li.org/
##################### Debian GNU/Linux Consultant #####################
<http://www.tamay-dogan.net/> Michelle Konzack
<http://www.can4linux.org/> Apt. 917
<http://www.flexray4linux.org/> 50, rue de Soultz
Jabber linux4michelle@... 67100 Strabourg/France
IRC #Debian (irc.icq.com) Tel. DE: +49 177 9351947
ICQ #328449886 Tel. FR: +33 6 61925193

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Re: Socket CAN (Re: Re: Fwd: Quad PCI-104/PC-104+ CAN card?)

2009-11-17T00:35:30Z

Hi,

well, one problem of Socket CAN is the poor usage/utilization of socket
buffers within the Linux kernel. I mean the socket interface of the
kernel is intentionally be used for greater transfer than just a single
CAN message (8bytes and DLC and ID). This results in many context
switches and a lot of overhead within the kernel. But that is not only a
problem of Socket CAN, can4linux and many other CAN APIs are making a
context switch per message for sending/receiving too (I know there a
some APIs with a kind of bulk transfer).

I did some performance tests here with an Atmel AT91SAM9262... The test
application used 3 threads (sending - slept to most time, receiving,
processing) and I came to 1500 message per seconds in receiving
direction. This isn't by far a good result, but I think it can be improved.

Improvment depends on your application. If you need low latency and a
maximum of throughput with low CPU load, why not implement your protocol
in kernel space like BCM and ISOTP (already available for Socket CAN). I
can think about a J1939 implementation especially for large transfers
using the transport protocol or a ISO11783 with ETP. Move this stuff to
kernel space may also be an option for more or less time critical tasks
like periodic sending of many messages.

PS: There is also a realtime version of Socket CAN for Xenomai available.

Sebastian

Steinhoff schrieb:

>
> Hi,
>
> when I look to mass of code used to transfer just 8 bytes of data ... I
> would expect high latency and huge CPU load.
>
> Best Regards
>
> Armin Steinhoff
>
>
> isto.virtanen@... wrote:
>>
>> Greetings all,
>>
>> since Socket CAN was brougth up, I wanted to ask if You should have
>> experiences on the performance.
>> We have currently some prototype COTS HW with socket and we are not
>> happy with it.
>> With ARM9-architecture running Linux there seems to be a some problems
>> in task switching and thus heavy CPU-load.
>> What kind of CPU-loads or response times whould one expect from this
>> implementation?
>>
>> isto
>>
>>
>> *Steinhoff*
>> From: Steinhoff <steinhoff@...>
>>
>>
>> To: canlist@...
>>
>>
>> Cc:
>>
>>
>> Date: 16.11.2009 14:35
>>
>>
>> Subject: Re: [CANLIST] Re: Fwd: Quad PCI-104/PC-104+ CAN card?
>>
>>
>> ------------------------------------------------------------------------
>>
>>
>>
>> Sebastian Haas wrote:
>> Heinz-Jürgen Oertel schrieb:
>>
>> Am Mittwoch, 11. November 2009 17:37:04 schrieb Steinhoff:
>>
>> Michael,
>>
>> we offer boards with 4 CAN channels for QNX 6.x :
>> for both, Basic CAN (SJA1000) and Full CAN (Bosch CC770)
>>
>> Our offered CAN boards with 4 CAN channels are OEM versions of boards
>> from EMS Wuensche. I saw that their PCI-104 boards with 4 channels are
>> not online, yet, but they are available! You can check their PCI board
>> online with the same design:
>> _http://www.ems-wuensche.com/product/datasheet/html/can-pci-plugincard-multi_
>> ple-channels-cpcpci.html
>>
>> Best regards,
>> Armin Steinhoff
>> _www.steinhoff-automation.com/DACHS-CAN_flyer_E.pdf_
>> <http://www.steinhoff-automation.com/DACHS-CAN_flyer_E.pdf>
>>
>>
>> can4linux is available too for the PC104m at least,
>> the one equipped with up to four sja1000.
>> If the electric design is the same as for the PCI boards,
>> the driver can be used for the PCI-104 as well.
>>
>> Yes it is.
>>
>> The boards (PCI, PCI-104 and PC-104) are supported by Socket CAN too.
>>
>> The design of the electronic of a PC/104 (ISA) and a PC/104plus (PCI)
>> board is completely different.
>> An individual driver has to care about these different designs.
>>
>> The driver provided by can4linux is a multi board driver which
>> supports ISA and PCI devices ... but there is necessary an individual
>> configuration of the driver .
>> But that driver offers the same API for the development of CAN based
>> applications, what seems also the case with the Socket CAN interface.
>>
>> Regards
>>
>> Armin Steinhoff
>>
>>
>>
>>
>> This e-mail is confidential and it is intended only for the
>> addressees. Any review, dissemination, distribution, or copying of
>> this message by persons or entities other than the intended recipient
>> is prohibited. If you have received this e-mail in error, kindly
>> notify us immediately by telephone or e-mail and delete the message
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>> or omissions in the contents of this message which may arise as a
>> result of the e-mail transmission.
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Mit freundlichen Gruessen/Best Regards,

Sebastian Haas
Software Entwicklung/Software Development

Phone: +49-9451-9432-22
Fax : +49-9451-9432-12
Email: haas@...
Web : www.ems-wuensche.com
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Visit us at SPS/IPC/DRIVES Nuremberg
from 24 - 26 Nov 2009 at hall 6/422
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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85304 Ilmmuenster
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Phone: +49-8441-490260
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Re: Socket CAN (Re: Re: Fwd: Quad PCI-104/PC-104+ CAN card?)

2009-11-16T12:01:24Z

Hi,

when I look to mass of code used to transfer just 8 bytes of data ... I would expect high latency and huge CPU load.

Best Regards

Armin Steinhoff

isto.virtanen@... wrote:

Greetings all,

since Socket CAN was brougth up, I wanted to ask if You should have experiences on the performance.
We have currently some prototype COTS HW with socket and we are not happy with it.
With ARM9-architecture running Linux there seems to be a some problems in task switching and thus heavy CPU-load.
What kind of CPU-loads or response times whould one expect from this implementation?

isto

Steinhoff
From: Steinhoff steinhoff@...

To: canlist@...

Cc:

Date: 16.11.2009 14:35

Subject: Re: [CANLIST] Re: Fwd: Quad PCI-104/PC-104+ CAN card?

Sebastian Haas wrote:
Heinz-Jürgen Oertel schrieb:
Am Mittwoch, 11. November 2009 17:37:04 schrieb Steinhoff:
Michael, we offer boards with 4 CAN channels for QNX 6.x : for both, Basic CAN (SJA1000) and Full CAN (Bosch CC770) Our offered CAN boards with 4 CAN channels are OEM versions of boards from EMS Wuensche. I saw that their PCI-104 boards with 4 channels are not online, yet, but they are available! You can check their PCI board online with the same design:http://www.ems-wuensche.com/product/datasheet/html/can-pci-plugincard-multiple-channels-cpcpci.html Best regards, Armin Steinhoffwww.steinhoff-automation.com/DACHS-CAN_flyer_E.pdf
can4linux is available too for the PC104m at least, the one equipped with up to four sja1000. If the electric design is the same as for the PCI boards, the driver can be used for the PCI-104 as well.
Yes it is. The boards (PCI, PCI-104 and PC-104) are supported by Socket CAN too.
The design of the electronic of a PC/104 (ISA) and a PC/104plus (PCI) board is completely different.
An individual driver has to care about these different designs.

The driver provided by can4linux is a multi board driver which supports ISA and PCI devices ... but there is necessary an individual configuration of the driver .
But that driver offers the same API for the development of CAN based applications, what seems also the case with the Socket CAN interface.

Regards

Armin Steinhoff

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PCMCIA to USB adapter for CANcardXL?

2009-11-16T10:26:22Z

Dear All

I need to use my CANcardXL in an industrial PC which however doesn't have a PCMCIA port.

If I use a PCMCIA to USB adapter (converter) to connect the CANcardXL to the USB port of the industrial PC, would it work?

Regards

Bo

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Testing CAN Peripheral on ARM11

2009-11-16T08:29:42Z

Hi,

I just need to verify CAN peripheral on an ARM11 processor is functional or not.

What is the best and easy way to do that?

My processor just has a CAN controller, it doesn't have a transceiver.

Is it possible at all to verify CAN without having transceiver?

Also what do the waveforms of CAN TxD and CAN RxD look like?

Can I verify the peripheral probing these waveforms?

Any ideas?

Thanks,

Girish

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Thank you for your cooperation.

Socket CAN (Re: Re: Fwd: Quad PCI-104/PC-104+ CAN card?)

2009-11-16T07:34:22Z

Greetings all,

since Socket CAN was brougth up, I wanted to ask if You should have experiences on the performance.
We have currently some prototype COTS HW with socket and we are not happy with it.
With ARM9-architecture running Linux there seems to be a some problems in task switching and thus heavy CPU-load.
What kind of CPU-loads or response times whould one expect from this implementation?

isto

Steinhoff	From:	Steinhoff <steinhoff@...>
	To:	canlist@...
	Cc:
	Date:	16.11.2009 14:35
	Subject:	Re: [CANLIST] Re: Fwd: Quad PCI-104/PC-104+ CAN card?

Sebastian Haas wrote:
Heinz-Jürgen Oertel schrieb:
Am Mittwoch, 11. November 2009 17:37:04 schrieb Steinhoff:
Michael, we offer boards with 4 CAN channels for QNX 6.x : for both, Basic CAN (SJA1000) and Full CAN (Bosch CC770) Our offered CAN boards with 4 CAN channels are OEM versions of boards from EMS Wuensche. I saw that their PCI-104 boards with 4 channels are not online, yet, but they are available! You can check their PCI board online with the same design:http://www.ems-wuensche.com/product/datasheet/html/can-pci-plugincard-multiple-channels-cpcpci.html Best regards, Armin Steinhoffwww.steinhoff-automation.com/DACHS-CAN_flyer_E.pdf
can4linux is available too for the PC104m at least, the one equipped with up to four sja1000. If the electric design is the same as for the PCI boards, the driver can be used for the PCI-104 as well.
Yes it is. The boards (PCI, PCI-104 and PC-104) are supported by Socket CAN too.
The design of the electronic of a PC/104 (ISA) and a PC/104plus (PCI) board is completely different.
An individual driver has to care about these different designs.

The driver provided by can4linux is a multi board driver which supports ISA and PCI devices ... but there is necessary an individual configuration of the driver .
But that driver offers the same API for the development of CAN based applications, what seems also the case with the Socket CAN interface.

Regards

Armin Steinhoff

Re: Re: Fwd: Quad PCI-104/PC-104+ CAN card?

2009-11-16T03:56:17Z

Sebastian Haas wrote:

Heinz-Jürgen Oertel schrieb:

Am Mittwoch, 11. November 2009 17:37:04 schrieb Steinhoff:

Michael,

we offer boards with 4 CAN channels for QNX 6.x :
for both, Basic CAN (SJA1000) and Full CAN (Bosch CC770)

Our offered CAN boards with 4 CAN channels are OEM versions of boards
from EMS Wuensche. I saw that their PCI-104 boards with 4 channels are
not online, yet, but they are available! You can check their PCI board
online with the same design:
http://www.ems-wuensche.com/product/datasheet/html/can-pci-plugincard-multi
ple-channels-cpcpci.html

Best regards,
Armin Steinhoff
www.steinhoff-automation.com/DACHS-CAN_flyer_E.pdf

can4linux is available too for the PC104m at least,
the one equipped with up to four sja1000.
If the electric design is the same as for the PCI boards,
the driver can be used for the PCI-104 as well.

Yes it is.

The boards (PCI, PCI-104 and PC-104) are supported by Socket CAN too.

The design of the electronic of a PC/104 (ISA) and a PC/104plus (PCI) board is completely different.
An individual driver has to care about these different designs.

The driver provided by can4linux is a multi board driver which supports ISA and PCI devices ... but there is necessary an individual configuration of the driver .
But that driver offers the same API for the development of CAN based applications, what seems also the case with the Socket CAN interface.

Regards

Armin Steinhoff

Re: Fwd: Quad PCI-104/PC-104+ CAN card?

2009-11-16T02:51:38Z

Heinz-Jürgen Oertel schrieb:

> Am Mittwoch, 11. November 2009 17:37:04 schrieb Steinhoff:
>> Michael,
>>
>> we offer boards with 4 CAN channels for QNX 6.x :
>> for both, Basic CAN (SJA1000) and Full CAN (Bosch CC770)
>>
>> Our offered CAN boards with 4 CAN channels are OEM versions of boards
>> from EMS Wuensche. I saw that their PCI-104 boards with 4 channels are
>> not online, yet, but they are available! You can check their PCI board
>> online with the same design:
>> http://www.ems-wuensche.com/product/datasheet/html/can-pci-plugincard-multi
>> ple-channels-cpcpci.html
>>
>> Best regards,
>> Armin Steinhoff
>> www.steinhoff-automation.com/DACHS-CAN_flyer_E.pdf
>>
>
> can4linux is available too for the PC104m at least,
> the one equipped with up to four sja1000.
> If the electric design is the same as for the PCI boards,
> the driver can be used for the PCI-104 as well.

Yes it is.

The boards (PCI, PCI-104 and PC-104) are supported by Socket CAN too.

--
Mit freundlichen Gruessen/Best Regards,

Sebastian Haas
Software Entwicklung/Software Development

Phone: +49-9451-9432-22
Fax : +49-9451-9432-12
Email: haas@...
Web : www.ems-wuensche.com
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Visit us at SPS/IPC/DRIVES Nuremberg
from 24 - 26 Nov 2009 at hall 6/422
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
EMS Dr. Thomas Wuensche e.K.
Sonnenhang 3
85304 Ilmmuenster
HRA Neuburg a.d. Donau, HR-Nr. 70.106
Phone: +49-8441-490260
Fax : +49-8441-81860
http://www.ems-wuensche.com
--
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Subscribe and unsubscribe at www.vector-informatik.com/canlist/
Report any problems to <canlist-owner@...>

Re: Fwd: Quad PCI-104/PC-104+ CAN card?

2009-11-12T08:56:22Z

Hello again,

we have asked EMS-Wuensche to put online their data sheet for the PCI-104 board with 4 CAN channels.
Here it is, it should be exactly what you are looking for:
http://www.ems-wuensche.com/product/datasheet/html/can-pci-104-passive-plugincard-cpc104p.html

We have good experience with this board, running QNX 6.x!

Best regards,
Armin Steinhoff

At 17:37 11.11.2009 +0100, Steinhoff wrote:

Michael,

we offer boards with 4 CAN channels for QNX 6.x :
for both, Basic CAN (SJA1000) and Full CAN (Bosch CC770)

Our offered CAN boards with 4 CAN channels are OEM versions of boards from EMS Wuensche. I saw that their PCI-104 boards with 4 channels are not online, yet, but they are available! You can check their PCI board online with the same design:
http://www.ems-wuensche.com/product/datasheet/html/can-pci-plugincard-multiple-channels-cpcpci.html

Best regards,
Armin Steinhoff
www.steinhoff-automation.com/DACHS-CAN_flyer_E.pdf

From: "Michael J. Noone" mnoone@...
To: canlist@...
Subject: [CANLIST] Quad PCI-104/PC-104+ CAN card?
Date: Wed, 11 Nov 2009 09:17:14 -0500 (EST)

Hi does anybody know of a PCI-104 or PC-104+ card that had 4 CAN controllers built in? The best Ive been able to find is a dual CAN controller card.

Thanks!

Michael J. Noone
Boston Dynamics

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Re: Fwd: Quad PCI-104/PC-104+ CAN card?

2009-11-12T04:59:39Z

Am Mittwoch, 11. November 2009 17:37:04 schrieb Steinhoff:

> Michael,
>
> we offer boards with 4 CAN channels for QNX 6.x :
> for both, Basic CAN (SJA1000) and Full CAN (Bosch CC770)
>
> Our offered CAN boards with 4 CAN channels are OEM versions of boards
> from EMS Wuensche. I saw that their PCI-104 boards with 4 channels are
> not online, yet, but they are available! You can check their PCI board
> online with the same design:
> http://www.ems-wuensche.com/product/datasheet/html/can-pci-plugincard-multi
>ple-channels-cpcpci.html
>
> Best regards,
> Armin Steinhoff
> www.steinhoff-automation.com/DACHS-CAN_flyer_E.pdf
>

can4linux is available too for the PC104m at least,
the one equipped with up to four sja1000.
If the electric design is the same as for the PCI boards,
the driver can be used for the PCI-104 as well.

Heinz
http://www.port.de

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Steinhoff	From:	Steinhoff steinhoff@...
	To:	canlist@...
	Cc:
	Date:	16.11.2009 14:35
	Subject:	Re: [CANLIST] Re: Fwd: Quad PCI-104/PC-104+ CAN card?