Searching \ for '[PIC]: can bus' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/microchip/devices.htm?key=pic
Search entire site for: 'can bus'.

Exact match. Not showing close matches.
PICList Thread
'[PIC]: can bus'
2000\10\31@200245 by Gordon Varney

flavicon
face
RE: Microchips can bus controller 2510.

What is the minimum code required to initialize a node that will only send
or receive 2 or 3 commands?

Can the 12C508 handle the task? If not what is the minimum microcontroller
required based on code size and functionally?

(Remember the existing code is C level not Assembly, and is 4.8K of code in
full size. I don't believe that all of the code is totally necessary.)

I am looking for ideas and suggestions....

Gordon Varney
Director of Engineering
Translectric Inc.
spam_OUTvarneyTakeThisOuTspamclas.net
573-243-5186

--
http://www.piclist.com hint: The PICList is archived three different
ways.  See http://www.piclist.com/#archives for details.





'[PIC]: can bus'
2000\11\01@112910 by Bob Ammerman
picon face
Gordon,

I've not used the MCP2510, but I took a good look at it. Here's my thinking:

Communication with it uses SPI, that'll take 4 pins (CS, SI, SO and CLOCK).
You can use a fifth pin for interrupt driven processing.

You'll either need a PIC with hardware SPI, or you'll have to bit-bang the
SPI (not very difficult).

The chip is rather complex, with a lot of registers. I would guess that
you'd want more than the 1/2K of code space a 12C508 provides.

I would think a 16C505 might be a good 'bottom-end' chip here - more pins,
more code space. If you really don't need many pins for anything else a
12C509 could do the trick.

Bob Ammerman
RAm Systems
(contract development of high performance, high function, low-level
software)

{Original Message removed}

More... (looser matching)
- Last day of these posts
- In 2000 , 2001 only
- Today
- New search...