Hi, I use MPLAB 7.5 with mcc 3.1 In my code, I use : #pragma romdata CONFIG rom const unsigned int config_word2 = 0b0001101100000001; #pragma romdata So, with my chip (18f6680), the RC timer is between 7ms and 33ms. So, if I remember, I should have a watchdog between 57s and 117s. When the chip reset, I light some LED. I never do ClrWdt() so I think the watchdog should reset my processor. But he never reset my chip. Any idea ??? thank you __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist