Re: Watchdog - all is forgiven

"Tom Lucas" <news@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
message news:1158232347.43487.0@xxxxxxxxxxxxxxxxxxxxxxx
"Tom Lucas" <news@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx> wrote in
message news:1158161579.6562.0@xxxxxxxxxxxxxxxxxxxxxxxxx
I've been trying to implement the watchdog timer on my Sharp79524 and
it appears that the mutt is sleeping on the job!

I believe I have it set up to trigger after about 3s of inactivity but
it doesn't seem to reset the system at all.

Problem Solved!

It turns out that the address of the watchdog register is actually
0xFFFE3000 instead of the 0xFFFC3000 that is shown in the user guide.
This is a case where RTFM has caused the problem!

D'oh!

I'm sorry I didn't report the addresses that I poked when trying this out.
Not that it would have helped much since it (correctly) says FFFE2000 in my
Sharp 754xx manual. It might have prompted you to look again though. But why
use different addresses on different chips?

Wrong information is worse than no information at all. At least in the
latter case you know that you don't know.

Peter


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