On Thu, Jul 24, 2014 at 11:13 PM, James Cameron wrote: > Nothing obvious. Show us all your #defines. It probably relates to > one of them. Show us the line numbers too. So after posting my original message, I went for a walk. On my way back...it suddenly occurred to me that the "b" in the error message had to do with how I was #define-ing the constants. Sure enough, I was using the MPASM style b'01010101', rather than the XC style of 0b01010101. Problem solved! Thank you to both James and Richard for the quick replies. Now on to the next problem... Josh --=20 A common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. -Douglas Adams --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .