Okay, so I have used the disassembly window before, but never enough =20
to notice that library functions would be broken down there also.  =20
Neat.  I've been playing with it and whittling down the code to as =20
little as possible and I have a new revelation.

The delay functions are not the issue.  I have two versions of code, =20
only one of which works, and the difference is a local vs. global =20
variable.  If I use the variable locally inside of the main function, =20
it stops working.  I have disassemblies of both, and will break it =20
down later.  Perhaps someone here can easily catch something I'm doing =20
wrong.   This is the code...



unsigned char i;

void main(void)
{
	unsigned char i;	// <--- Comment this out and the code works

	OSCCON =3D 0b00010000;	// 1 Mhz internal
	OSCCON2 =3D 0b00000000;
	OSCTUNE =3D 0b00000000;
	TRISA =3D 0b11011111;
	TRISB =3D 0;
	TRISC =3D 0;
	ANSELA =3D 0b00000011;
	ANSELB =3D 0;
	ANSELC =3D 0;
	LATA =3D 0b00000000;
	LATB =3D 0;

	while (1)
	{
		LATC =3D 0b01010101;	// '0's will turn LED's on.
		for (i=3D0; i<250; i++)
			Nop();
		LATC =3D 0b10101010;	// '0's will turn LED's on.
		for (i=3D0; i<250; i++)
			Nop();
	}
}	// main()



Cheers,
-Neil




Quoting smplx <smplx@allotrope.net>:

>
>
> On Fri, 29 Nov 2013, Neil wrote:
>
> Track down the delay functions in question and check to see if they are
> implemented as macros, intrinsic or real sub-routines. If macros, try to
> work through them by hand. If they are not straight forwards write your
> own versions that are. If they are intrinsic try to find a compiler switc=
h
> or keyword to turn this off (might actually need you to remove the keywor=
d
> intrinsic from a header file.
>
> Regards
> Sergio Masci
> --
> http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
> View/change your membership options at
> http://mailman.mit.edu/mailman/listinfo/piclist
>



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