On Sat, May 30, 2009 at 4:39 AM, Vitaliy wrote: > This news came as a shock: without providing any explanation, Microchip > demoted the CANCKS bit to "Reserved: do not use". > > I'm going to call our FAE and ask him if he knows anything about this. Maybe > someone here has an explanation? Which PIC24H are you using? Just check one of them PIC24HJ64GP506 and it does not have CANCKS bit defined in CiCTRL1. http://www.microchip.com/wwwproducts/Devices.aspx?dDocName=en024682 The erratas do not mention this either. Maybe the family manual was wrong. Ok here is the reference: http://www.microchip.com/forums/tm.aspx?m=421868 "CANCKS bit functionality is not implemented on dsPIC33F/PIC24H devices. It is essentially a "don't care" bit and should not be used for bit timing. We are in the process of changing the documentation accordingly. Sorry about the confusion. " -- Xiaofan http://mcuee.blogspot.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist