Hi Group, Is there anyone out there with a working knowledge of the CAN bus and the 18F4585? I have it working with 25 nodes, but it has some Curious failures about .25% of the time. (Extended messages, null messages...) It looks like unresolved collisions in messages. I've tried lower baud rates and still have the problem. I'm using 122 ohm twisted pair, terminated at both ends. The signals look good on a "scope" at 1 megabaud. Tom * | __O Thomas C. Sefranek WA1RHP@ARRL.NET |_-\<,_ Amateur Radio Operator: WA1RHP (*)/ (*) Bicycle mobile on 145.41MHz PL74.4 ARRL Instructor, Technical Specialist, VE Contact. http://hamradio.cmcorp.com/inventory/Inventory.html http://www.harvardrepeater.org -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist