On 14 October 2016 at 13:47, Jan Kandziora <j...@gmx.de> wrote:
> Am 14.10.2016 um 09:36 schrieb Colin Law:
> > On 14 October 2016 at 00:25, Jan Kandziora <j...@gmx.de> wrote:
> >
> >> Am 14.10.2016 um 00:01 schrieb Michael Hughes:
> >>> If I read the humidity from:
> >>>
> >>> /uncached/1F.49D100000000/main/26A829150000002E/humidity
> >>>
> >>> and then read the temperature from:
> >>>
> >>> /1F.49D100000000/main/26A829150000002E/temperature
> >>>
> >>> will I get the temperature that was used to calculate the
> >>> humidity?
> >>>
> >> No. Reading "temperature" will start another temperature conversion. You
> >> have to read "latesttemp" to read the contents of the temperature
> >> register from last conversion (which was triggered by the humidity
> >> conversion in this case.)
> >>
> >
> > What is the difference between ../temperate and uncached/../temperature?
> >
> The "normal" cached tree, under some circumstances, will return a cached
> value from the latest access to that particular node.
>
> However, as Michael did not read .../temperature but ../humidity, there
> should be no cached value for the temperature node. (Well, in reality,
> it is, because reading .../humidity in fact reads .../temperature
> internally and *does not* bypass the cache. Good riddance.)
>
OK, thanks
Colin
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