Paul Alfille-2 wrote:
>
> Note, there was a fix for DS2409 Hubs after the latest relesase (2.7p0) in
> the CVS. 2.7p1 should be released soon incorporating this fix and fixed
> thermocouple calculations and fixed serial port setup.
>
> Paul Alfille
>
I also have some problems with reading DS18s20, parasitic powered connected
to a DS2409 hub using a USB adapter. I have checked it out and build it. I'm
still dosn't get it to work correctly.
I have been trying to understand what happens and if I look on the bus with
a oscilioscope I can see that the bus is held low for quite a while , about
7-13ms, when OWFS trying to read the temperature after the convert command.
If the low time is in the lower range the temp. is read correctly, if longer
I get 85.
I don't know if is same in the cvs version as I did this observations in the
v2.7p0 release.
Dag Erlandsson
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