LPC1788 watchdog interrupt

Discussion created by lpcware Employee on Jun 15, 2016
Content originally posted in LPCWare by wella-tabor on Sun May 05 05:16:53 MST 2013

I have configured the watchdog warning interrupt to 4 ms (4 * 125), timeout to 1000 ms and window to 500 ms and no reset, no protect. When I feed the watchdog in about 300 ms, the flag WDTOF is set which is a situation I would expect (set before the WINDOW). However at the same time the interrupt is generated and the LPC_WDT->TV is about 700 ms.

Did I overlook something in the user manual? I thought that the interrupt should be generated only when LPC_WDT->TV == LPC_WDT->WARNINT.