Quick DS18B20 question

[Darrel Taylor]

Looks like you started out with a DS1820 example, since the DS18B20 doesn't have COUNT_REMAIN and COUNT_PER_C registers.

To answer your original question, yes it does normally default to 12-bit.
However, any resolution can be stored in non-volitile memory, in which case it will power-up at that reolution instead.

But with any resolution, the calculation is the same ( * 625, DIV32 10).

Bruce's page I pointed to previously covers that, and more.

Hope it works out for you.
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[gti_uk]

Thanks Darrel for the help, its much appreciated. Im trying to get used to reading the datasheets to understand how to communicate with the devices but as you can see not reading them so well at the moment.
I did try to read the datasheet for the (real time Ic) DS1302 last night but well that just confused me, i think i need the picture book version for ages 1 to 5

ill have a good read of that link you gave me.


Trev