ST9 Interrupt ,Watchdog

sacco_nicolas · ‎2003-09-17

Posted on September 17, 2003 at 21:22

sacco_nicolas · ‎2011-05-17

Posted on May 17, 2011 at 11:34

I have seen on the ST9+ user guide that it is possible to trigger an interrupt INTA0 on an ''end of count'' event. I have some reset watchdog on my soft and i would know where this events occurs. Is it possible to trigger an interrupt just before the software starts to reset?

Thanks

loic2 · ‎2011-05-17

Posted on May 17, 2011 at 11:34

You have to use the Watchdog timer as a timer, without enabling the watchdog.

The watchdog end of count interrupt is multiplexed with the INT0 external interrupt on INTA0 channel.

Refer to external interrupts section in the datasheet to configure properly the INTA0 channel.

sacco_nicolas · ‎2011-05-17

Posted on May 17, 2011 at 11:34

OK,merci pour l'info.