CAN node implementation using PIC18F2585

[PCM programmer]

This post has a simple test program for two CAN bus boards to
communicate with each other.
http://www.ccsinfo.com/forum/viewtopic.php?t=29627&start=7


I notice you have a 47K resistor for RS on the MCP2551. I think that
value is too large. In the designs at our company, we connect the Rs
pin to Ground. We have pads for a resistor on the board, but we install
a 0-ohm resistor.

To connect the two CAN bus boards together:

1. Put a 120 ohm resistor across the CANH and CANL pins of the MCP2551 on each board. The resistors should be mounted close
to the MCP2551 on each board.

2. Connect CANH on Board #1 to CANH on board #2.

3. Connect CANL on Board #1 to CANL on board #2.

4. Connect a ground wire between both boards.

The two wires for CANH and CANL should be twisted pair.

There is a drawing in this link:
http://www.interfacebus.com/Design_Connector_CAN.html

[kansusid]

Thanks for the details. Is it possible to have some thought over only 3 times output in normal mode? Since few others have had this problem(can be seen in the forum postings), is it a common bug? My compiler version PCWHD 4.0.0.0

Thanks in advance
_________________
kansusid

[PCM programmer]