> I'm encountering weird problems with a PIC18F4525. I'm working over > a design > I have working perfectly for over a year. The problem happens when I > use the > SPI module. Regardless of what triggers it, are you doing everything "by the book"? All input pins terminated high or low. All non terminated pins as outputs. Watchdog either disabled or disabled. No pin voltages > Vdd or < Vss by even a smidgeon EVER. There are others, but any of these may kill you after an indeterminate period of time or activity. Russell -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist