Question about XI
Clock Loop
Posts: 2,069
Why can't I just halt the propeller by stopping the XI input?
And then start it again any given amount of time later?
I noticed it doesn't like that,
I tried to freeze the clock and then start it back up a few seconds later,
It will sometimes stop my program, sometimes it runs, and others it runs slow, and then some parts of the program will sometimes work, and others not.
Its too bad one can't just pause the prop by stopping the clock.
Is there any way to do this?
Do I need to follow a special sequence to get it to handle this kind of manipulation?
(like have the XI input rest high or something?)
And then start it again any given amount of time later?
I noticed it doesn't like that,
I tried to freeze the clock and then start it back up a few seconds later,
It will sometimes stop my program, sometimes it runs, and others it runs slow, and then some parts of the program will sometimes work, and others not.
Its too bad one can't just pause the prop by stopping the clock.
Is there any way to do this?
Do I need to follow a special sequence to get it to handle this kind of manipulation?
(like have the XI input rest high or something?)
Comments
_clkmode = xtal1 + pll16x
Can anyone explain why this matters?
You can probably get away with it when you switch to RCFAST/RCSLOW first, then kill XI, and later switch back to PLL mode once the clock is stable again.
Post Edited (kuroneko) : 6/9/2009 11:07:52 AM GMT
Thanks.