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'[PIC]: PIC to CAN network, MCP2510 info?'
2001\08\01@120929 by jamesnewton

face picon face
Sadly, there is very little available for this fairly new and narrowly
focused chip. I know nothing of CAN networks but will forward this request
to the PICList
http://www.piclist.com
to see if any of the brilliant membership there have anymore information.

www.microchip.com/Download/appnote/category/analog/can/00215a.pdf
is about it for PIC specific with source code.
General can links
http://www.eetoolbox.com/indc/indcan.htm

hint: search for "CAN Network" or "CAN controller" and PIC or MCP2510 or
movlw e.g.
www.google.com/search?hl=en&lr=lang_en&safe=off&q=%22can+network%22+M
CP2510+

---
James Newton, Admin #3 spam_OUTjamesnewtonTakeThisOuTspampiclist.com
1-619-652-0593 VM 1-208-279-8767 FAX
PIC/PICList FAQ: http://www.piclist.com or .org


{Original Message removed}

2001\08\01@133024 by iklas Wennerstrand

picon face
Regarding information on CAN:
If you want to find out what CAN is and why it can be a good bus to work
with then I would recommend the Microchip application note AN713.
http://www.microchip.com/10/appnote/category/analog/can/index.htm

There is also a bunch of other application notes about it but AN713 is a
good start.

Basically the benefit with CAN is that it can be used in noisy environment
and over relative long distances with in built error checking system and
reduce cables in your design.

CAN is a message based bus and message based buses have some advantages over
address based busses like the I2C or similar. In a CAN system all nodes is
listening on the bus and sort out if there was something that that node
should perform. This enables you to hook up new nodes to the system without
upgrading a master node.

An analogy of a message based CAN bus is that when you attend to a dinner
with your relatives around a big table there is a lot off messages around
that table. All people around the table can hear what every one is saying,
but it up to each participant to listen to the conversation that they are
interested in.(it's a lot of people talking at the same time) If there is a
new participant around the table he/she can just join in into the
conversation even if that person has not been introduced to all the rest of
the group. As a participant around the table you can filter out what that
group of foxy ladies is talking about to the left of you. In a CAN bus you
can do filtering as well. In a CAN bus you can also prioritise messages as
you can at a dinner table. When someone is ringing a glass of wine with
their spoon it means that you should prioritise a message from that person.
If you get interrupted at the dinner table you stop talking and resume your
message as soon as you can. The CAN bus is working in a similar way.

CAN is commonly used in cars, boats, robots and industrial applications.

CAN controllers have been narrowly used in cars but is used in more and more
types of applications. In cars of today you find CAN in almost every new car
so its not really a narrow component nowadays. One application that I
believe will be bigger is in home automation. If you want to switch on or
off a light bulb you probably wont implement TCP/IP to the light bulb socket
but maybe a CAN node. You want small amounts off cables and you want a
robust bus. It may be to costly to equip every node in a home with a CAN
node but the LIN bus may be a complement there as it is in new cars of
today.


Niklas Wennerstrand


-----Ursprungligt meddelande-----
Från: pic microcontroller discussion list [.....PICLISTKILLspamspam@spam@MITVMA.MIT.EDU]
För James Newton. Admin 3
Skickat:        den 1 augusti 2001 18:08
Till:   PICLISTspamKILLspamMITVMA.MIT.EDU
Ämne: [PIC]: PIC to CAN network, MCP2510 info?

Sadly, there is very little available for this fairly new and narrowly
focused chip. I know nothing of CAN networks but will forward this request
to the PICList
http://www.piclist.com
to see if any of the brilliant membership there have anymore information.

www.microchip.com/Download/appnote/category/analog/can/00215a.pdf
is about it for PIC specific with source code.
General can links
http://www.eetoolbox.com/indc/indcan.htm

hint: search for "CAN Network" or "CAN controller" and PIC or MCP2510 or
movlw e.g.
www.google.com/search?hl=en&lr=lang_en&safe=off&q=%22can+network%22+M
CP2510+

---
James Newton, Admin #3 .....jamesnewtonKILLspamspam.....piclist.com
1-619-652-0593 VM 1-208-279-8767 FAX
PIC/PICList FAQ: http://www.piclist.com or .org


{Original Message removed}

2001\08\01@220232 by Brandon Fosdick

flavicon
face
"James Newton. Admin 3" wrote:
>
> Sadly, there is very little available for this fairly new and narrowly
> focused chip. I know nothing of CAN networks but will forward this request
> to the PICList
> http://www.piclist.com
> to see if any of the brilliant membership there have anymore information.

I noticed there isn't much SPI stuff on piclist.com either, which is of
course necessary to interface with the MCP2510. I'm switching my project
to CAN so I'll contribute my code when I'm done. I'm sure there are
people who've written SPI code that's much better than what I can
create, but I'll send that too if nobody else does.

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics


2001\08\09@065358 by Martin Hill

picon face
I have interfaced a PIC to an MCP2510, but I used the standard SPI interface built into the 16F876, so it was very straightforward.  Works really well, but there are now chips available with the CAN built in.

Martin

>>> EraseMEbfozspam_OUTspamTakeThisOuTGLUE.UMD.EDU 08/06/01 08:50 AM >>>
"James Newton. Admin 3" wrote:
>
> Sadly, there is very little available for this fairly new and narrowly
> focused chip. I know nothing of CAN networks but will forward this request
> to the PICList
> http://www.piclist.com
> to see if any of the brilliant membership there have anymore information.

I noticed there isn't much SPI stuff on piclist.com either, which is of
course necessary to interface with the MCP2510. I'm switching my project
to CAN so I'll contribute my code when I'm done. I'm sure there are
people who've written SPI code that's much better than what I can
create, but I'll send that too if nobody else does.

--
http://www.piclist.com hint: The list server can filter out subtopics
(like ads or off topics) for you. See http://www.piclist.com/#topics

--
http://www.piclist.com hint: To leave the PICList
piclist-unsubscribe-requestspamspam_OUTmitvma.mit.edu


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