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Watchdog relation and interrupt 0

Donald Koh

Hello,

I have a problem when i disable the watchdog

// WDTCN = 0x0DE; // WDTCN = 0x0AD;

at the begining of the main. I put a breakpoint at the external interrupt 0. It will never go in and stop at the breakpoint. When i stop the program. I will stay inside the while loop and I checked the interrupt peripheral, it seems that interrupt 0 has been requested.

This problem will not happen when I enable the watchdog in the begining of the main.

WDTCN = 0xFF; // lock out the watchdog disable feature WDTCN = 0xA5; // enable and restart watchdog timer

Anybody has any idea about this?

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