> No, you do not!
> 
> The PC does not wrap around within a page. It will automatically advance to 
> the next page (ie; carry into the MSBits). So you are executing whatever 
> instruction sits at 0x200 (and following).

That doesn't seem to be happening.  I have let the PIC run for 10 or 15 seconds or more, then turned on the scope, and the square wave is still there!

> However, all is not lost! You can use the PWM peripheral to generate your 
> 2MHz square wave. After setting it up, the PIC will be completely free to do 
> other tasks!
> 
> You will need to:
> 
> set PR2 to a value of 1 so that timer 2 counts 0,1,0,1,0,1, . . .
> enable timer 2
> enable one of the PWM outputs
> set the duty cycle register of the PWM output to 1.

I didn't realize the PWM output could run that fast - I'll give it a try.

Thanks!

Ron


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