Hi, Just wondering if anyone knows how I can distinquish between a power on reset and watchdog reset using a AT89S53 chip. Cheers, Andy
Hi, There is a POF bit, this bit can be used to know if its a POR or a watchdog timer reset. All S series uC of Atmel have this POF bit. Check the data sheet for more details. If you still have doubts, you can get back to me. Rgds Raj Shetgar