RE: [Embedlets-dev] Device polling

[Christopher S. <cs...@oo...>]

>
> Topic tags:[ARCH][JAPL][WIRING][DOCS][MGMT][STRATEGY][NEWBIE]
> _______________________________________________
>
> Re: Outpost_ArchitectureDiscussionDocument_13.pdf
> Page: 12 (bottom)
Bill states:

>Some devices of course should not be event
> driven, but most I can think of off the top of my head would best be
> implemented that way.

Logical functions are by nature state and not event driven. You can make
them event driven by performing the logical function in response to a
change, however this leads to initial state problems and race conditions. Or
you can use a timer to issue an event that causes the logical deveices to
poll their state and assert some output. Complex systems are usually a mix
of state (polled) and event driven components.

My previous post addresses this by providing the best of both.