On Wed, Feb 13, 2013 at 1:14 AM, Almer Benito <[email protected]>wrote:
> Dear Eric B. Decker. > > Thanks for your reply. > > Sorry for my ignorance, but what does mean "an External Reference" > (VeREF+ (external)). > no problem. > > Is an external battery connected directly to VeREF pin ? > It is simply an input for you (if you wish) to establish the reference voltage for the ADC. You don't have to use it but can use one of the voltages that the chip already knows about. > > Thanks in advance for your answer. > > Kind regards, > > Almer. > > > > > On Wed, Feb 13, 2013 at 4:16 AM, Eric Decker <[email protected]> wrote: > >> >> >> On Tue, Feb 12, 2013 at 3:10 AM, Almer Benito <[email protected]>wrote: >> >>> Dear Eric Decker. >>> >>> Thank you for your advice and to share the 1611's schematic. >>> >>> Please, would you tell me which parameter must be taken into account in >>> the 1611's user guide in order to determinate how many ADC ports that can >>> work at the same time? >>> >> >> There isn't a parameter per se, so you will need to study the whole >> chapter (on the ADC). Also find TI's example code that show how to use >> the ADC. It's not the best of code, (TI code is usually pretty >> sub-optimal), but it is a place to start. >> >> >>> >>> Thanks in advance again. >>> >>> Best regards, >>> >>> Almer. >>> >>> On Tue, Feb 12, 2013 at 3:35 AM, Eric Decker <[email protected]> wrote: >>> >>>> >>>> forgot the schematic..... >>>> >>>> >>>> >>>> On Mon, Feb 11, 2013 at 4:51 PM, Eric Decker <[email protected]> wrote: >>>> >>>>> >>>>> >>>>> On Mon, Feb 11, 2013 at 7:16 AM, Almer Benito >>>>> <[email protected]>wrote: >>>>> >>>>>> Dear all. >>>>>> >>>>>> Someone knows about with how many ADC ports at the same time can >>>>>> works a TelosB mote? I think hypothetically according the datasheet of >>>>>> the >>>>>> TelosB the answer is with 6 (I'm attaching a graphic). >>>>>> >>>>> >>>>> I've attached the schematic for your reference. >>>>> >>>>> The 1611 brings out 8 ADC ports. 6 of these are brought out to the >>>>> expansion headers as you've noted. >>>>> >>>>> ADC4/5 are attached to photo diodes (listed as optional) so you may be >>>>> able to attach there. >>>>> >>>>> As far as using them simulataneously you should study the 1611 Users >>>>> Guide. >>>>> >>>>> >>>>>> >>>>>> Thanks in advance for any advice. >>>>>> >>>>>> Best regards >>>>>> >>>>>> Almer. >>>>>> >>>>>> >>>>>> _______________________________________________ >>>>>> Tinyos-help mailing list >>>>>> [email protected] >>>>>> >>>>>> https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Eric B. Decker >>>>> Senior (over 50 :-) Researcher >>>>> >>>>> >>>> >>>> >>>> -- >>>> Eric B. Decker >>>> Senior (over 50 :-) Researcher >>>> >>>> >>> >> >> >> -- >> Eric B. Decker >> Senior (over 50 :-) Researcher >> >> > -- Eric B. Decker Senior (over 50 :-) Researcher
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