Jan-Erik,
     Please be patient with me. My Fibromyalgia is really acting up and=20
I am in a lot of pain. I am trying to push through this. I wasn't sure=20
about exactly how to use the NOP in C. By experimenting I was able to=20
see that the #asm directive wasn't necessary and that all you did was=20
use NOP();.I have dropped back to a basic set of statements where all I=20
am doing is turning PORTA and D on and off. I want to get that working=20
first.
Thanks,
rich!

On 10/20/2015 10:00 AM, Jan-Erik S=F6derholm wrote:
> Exactly *what* was unclear from page 349 in the XC8 manual !?
>
> Your question make be believe that you never bothered to
> check page 349 (or anything else in the manual, I guess).
>
> Good luck.
>
>
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D
> Synopsis
>   #include <xc.h>
>   NOP();
> Description
>   Execute NOP instruction here. This is often useful to fine tune delays =
or
>   create a handle for breakpoints. The NOP instruction is sometimes requi=
red
>   during some sensitive sequences in hardware.
>
> Example
> #include <xc.h>
>   void crude_delay(unsigned char x) {
>   while(x--){
>    NOP(); /* Do nothing for 3 cycles */
>    NOP();
>    NOP();
>   }
> }
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D
>
>
> Jan-Erik.
>  =20
>
>
> -----Ursprungligt meddelande-----
> Fr=E5n: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu] F=F6r Ri=
chard
> R. Pope
> Skickat: den 20 oktober 2015 16:49
> Till: Microcontroller discussion list - Public. <piclist@mit.edu>
> =C4mne: Re: SV: SV: SV: [PIC]: Trying to get a 16F877A to talk to an LCD!
>
> Jan-Erik,
>       If I understand this correctly I would use #asm NOP and then NOP; w=
here
> ever I want them??
> Thanks,
> rich!
>
--=20
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