Lpc2000

On 15 Sep 2005 at 10:21, nuncio_bitis wrote:

> Hello -
> I've recently been working with nesting of interrupts, but I can't
> seem to get it to work.  The examples I've come across don't work for
> me, or are inappropriate.  Such as using LR as a scratch register
> (throwing away the return address from the IRQ), or not clearing
> interrupts before entering a nesting state (one example doesn't clear
> the VIC until after the nested state ends, which just has interrupts
> disabled throughout).
> 
> Has anybody really gotten nested interrupts working?  Any ideas would
> be greatly appreciated.
> 
Look on freescale's web site. They have an app note for the MAC7100 series
(Their ARM MCUs) that shows how to do nested interrupts. 

Regards
  Anton Erasmus
-- 
A J Erasmus