I don't know if I'm being helpful here, but I did manage to get just what Dave is trying to do working quite nicely on the Pic Dem 4.  Here is from the doc:


-----Original Message-----
From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] On Behalf Of Jan-Erik Soderholm
Sent: Monday, May 02, 2005 14:38
To: piclist@mit.edu
Subject: RE: [PIC] USART async comms with PC running hyperterminal, problems

Dave Turner wrote :

> umm.. I am using the microchip include file for everything except the
> labels defined in the code,...

"labels" ? What "labels " ?

> and they are the same as the microchip
> ones, except lower-case.

Ah, you mean the symbols (rxsta and so on).
Again, do *not* define them yourself.
Use the P16F87.INC file.

> My include file is just a load of stuff like:
> 
> #define   LED1   porta

That is wrong (or at least doesn't work). "porta" is an 8-bit port.
One single led should just use a single *pin* on that port.
Something like :

> #define   LED1   porta, 1

> So, is INTRC actually an osc, or an RC??

It's an internal RC-osc.

> If i use the config setup posted above, what speed will I then be
> using?

I'm not sure that "above" refers to.
If using the INTRC, it depends on other settings, see the
data sheet.

>  And which crystal?

Are you using a crystal ??

>  INTRC or INTOSC?

On *this* PIC, INTRC.
Some other PICs calles he same osc INTOSC...


Jan-Erik.



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