On Thu, 22 May 2008, Alan B. Pearce wrote:

>> This "keep sleeping or wake up" should be entirely decided in the ISR.
>
> It cannot be done like that.

Of course it can.

> The ISR has to set a flag, and then return from
> interrupt, allowing the main program to run around a loop looking at the
> flag, to see if anything needs to be done. If nothing is required, then the
> main program puts the CPU to sleep. The ISR should never be putting the CPU
> to sleep.

Why do you believe that?

--
John W. Temples, III
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