Hi,

 I just order some 12c672 parts, can you tell me wich programer and
emulator you use for this pics.  I have parallax stuff and it doesn't
program this one's.

  Thanks.

Pablo

Ry Lato wrote:
>
> I am using the PIC12C671 8-pin PIC to simply
> take continuous samples of a signal (10Hz-1KHz sine wave) using the
> integrated A/D converter. In the data book, there are the following
> timing specifications.
>
> Delay #1: Aquisition time that starts after channel selection, A/D clock
> selection, to then intiating the A/D conversion process
> Delay #2: Time it takes for the A/D module to make a conversion.
> Delay #3: Time after the conversion is complete to when the next
> aquisition can start. (defined as 2*TAD)
>
> For my application, I would like to take as many samples per second
> as possible. After each sample, I will compare the A/D value (ADRES) to
> the highest measured value from previous samples. A signal from another
> PIC will reset process. In other words, I am creating a custom peak
> detector. It works great!
>
> Delay #2 is something beyond the programmers control. The A/D conversion
> will finish, when it finishes. When it does, the GO/DONE#
> bit will return low.
>
> Delay #3 is required since the holding capacitor is not attached to the
> A/D input during this time, which occurs directly after conversion
> stops.
>
> BUT! For delay #1, since all my code does is sample this ONE A/D channel
> over and over, do I need to wait this aquisition time after the 1st
> sample and each one thereafter? Reducing this delay, can make peak
> measurements of my signal a bit more accurate, by allowing more discrete
> samples. Please do not suggest a standard analog peak detector. I had
> way too much noise and accuracy problems.
>
> ______________________________________________________
> Get Your Private, Free Email at http://www.hotmail.com

--
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/
_/                                                              _/
_/                   N  A  F    Electronic                      _/
_/                       M e x i c o                            _/
_/                                                              _/
_/             e-mail: nafpoc@mail.giga.com                     _/
_/                                                              _/
_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/