Solarwind, I tell you a secret - do not tell anyone here in the list ;-)

I was NOT borne with the knowledge of PIC microcontrollers.

What I have done is to look for PIC tutorials and books on the net. I am
pretty sure you did the same with C and linux, you read so many books on the
subject. So here are two important links you may start:

http://www.piclist.com/techref/piclist/begin.htm
http://www.mikroe.com/en/books/

The first one gives you many starting up points, while the second one is a
free library, you can read those books free of charge.

Hope it helps
Tamas



On Mon, Dec 8, 2008 at 1:26 AM, solarwind <x.solarwind.x@gmail.com> wrote:

> On Sun, Dec 7, 2008 at 8:20 PM, Bob Ammerman <rammerman@verizon.net>
> wrote:
> > Again, you do *not* actually need to use an interrupt handler, nor
> globally
> > enable interrupts to get interrupt-on-change to work to wake up from
> sleep.
> >
> > As Olin noted, an enabled interrupt-on-change causes an interrupt
> > *condition*, but it only becomes an actual interrupt if interrupts are
> > globally enabled.
> >
> > So, you want to do the following:
> >
> > 1: Make sure you properly initialize your inputs as digital as opposed to
> > analog (often controlled by a port called ANSEL, but this varies amoung
> > several different PICs).
> >
> > 2: Make sure your inputs are set up as inputs rather than outputs (this
> is
> > the default condition, check out TRIS registers for this).
> >
> > 3: Make sure that interrupts are globally disabled (often a flag bit
> called
> > GIE). This is the default condition.
> >
> > 4: Make sure the interrupt-on-change interrupt is enabled (another flag
> > bit).
> >
> > Now a SLEEP should be terminated when the input bit changes, but no
> > interrupt handler is needed.
> >
> >
> > Some baby steps:
> >
> > I would start by trying to write a program that just copied the state of
> an
> > input bit to an output bit. This makes sure you have inputs set up as
> inputs
> > and outputs as outputs. Then I would try to add the
> > interrupt-on-change/wakeup from SLEEP logic.
> >
> > -- Bob Ammerman
>
> Very helpful, thank you. Attempting now.
>
>
>
> --
> ..::[ solarwind ]::..
> --
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-- 
Rudonix DoubleSaver
http://www.rudonix.com
-- 
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