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'CAN'
1995\04\28@154515 by Henri

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>
>  Two related (sort of) questions:
>  1)  Has anyone implemented CAN drivers for PIC chips?  Is any such
>  code readily available?
>  2) Can anyone suggest where I might find the spec for CAN?
Hi  Daniel
The first question is quite interesting. Once I thought about
doing this by myself, but there are probably some horrible timeraces
involved. Right now I have a full can controller SFCAN SAE81C90 tied
to my PIC and it works pretty good.

If your're going to programm this library and to keep us informed
about this I'd like to give some information:

There is the standard 'ISO 11898', it deals with the Data Link Layer
of CAN. This is what you need most. Additionaly you could take a look
into '8XC592 Target Device Specification' from Philips Semiconductors.
The 8XC592 is actually a 8051 core with a on chip basic CAN controller
82C200. So they decribed the CAN stuff very detailed in this booklet.

Also it could be usefull to become a member of the CiA.
That means CAN in Automation. It's a CAN user group, where mostly
small and medium businesses are involved.

CAN in Automation Headquarters
Am Weichselgarten 26
91058 Erlangen
Germany

Tel: 011-49-9131-601091; Fax: 011-49-9131-601092

For further information request you CAN contact

Dr.-Ing. Rauchhaupt
Institut fuer Prozessmesstechnik und Elektronik
Postfach 4120
39016 Magdeburg
Germany

Tel: 011-49-391-5592-4651; Fax: 011-49-391-561-6358


There is a CiA member 'just in the neighborhood' of you:

Automation Intelligence Inc.
2455 Mendow Brook PKWY.
Atlanta, GA30136

You even could contact me: see the signature


I know a firm here in Germany which has the Code for a CAN driver.
It's programmed in VHDL and they use of course a 'silicium compiler'
in order to make some sort of ASIC.

In addition to this I can tell you, that we had once a modul with
a very strange microproc on it, IX0 or so. It contained a
Forth-written library for a CAN driver. But in the end it was not
reliable. There were problems probably with the bit stuffing.

I hope you CAN take some benefit from this info.

cu next time here in the list

                      Henri

--
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[]-------------------------------[]---------------------------------------[]
||         Henri Schultze        || Magdeburg D-39122 Alt-Fermersleben 88 ||
||   spam_OUThenriTakeThisOuTspamfscz-md.boerde.de     ||          The Cracker Company          ||
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'CAN'
2009\04\24@113512 by Alan B. Pearce
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>I am not looking for the CAN message specification, as I know
>that, but instead I am looking for info on how the data part
>of the message is structured.

Is it worth looking at the Microchip J1939 CAN Library described in
Microchip document DS51454? I think the library is a purchasable item, but
the document can be downloaded for free.

2009\04\24@201013 by Vitaliy

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Luis Moreira wrote:
{Quote hidden}

Luis,

Reverse engineering the protocol shouldn't be too difficult. Can you post
what you're seeing, in response to different actions (move seat forward @
max speed, move it back @ max speed, etc)?

Vitaliy


'CAN'
2009\05\05@025403 by Luis.Moreira
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Hi All,
I apologise for not have posted further on this subject, but I have been
all last week trying to post the screen capture from the program I am
using to look at the bus, but I am getting a message back that the post
is to large. Unfortunately the software I am using is just trial
software and will not allow for saving the log on to a file or even to
copy it to the clipboard. Y
I will try to sort it out this week.
Best Regards
            Luis


{Original Message removed}

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