On Thu, Jun 4, 2009 at 2:36 AM, Jesse Lackey wrote: > > > I then simplified the code and removed everything I could think of, and > it (board #2) started working. Moving forward again, I found it was > this brownout issue that was causing all the problems. > There are a finite number of things that can keep a chip from starting up. The BOR seems like a primary suspect. 0.4v is not a big dip for a power rail especially when you consider that VDD has to get into the chip on some very small wires. We've all done the "I spent hours on this problem and it was one stupid bit" dance before, most of us don't blame the person who makes the microcontroller. - Martin -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist