Lpc2000

Disabling interrupts is enough, but if you do not or cannot do that, you 
have to make
sure that everything used by your interrupt service routines (ISR) is in 
RAM.

ISP should have been ISR, sorry about that.

Richard.


Guillermo Prandi wrote:

> > This usually means that you disable interrupts or relocate
> > all your ISP routines into RAM.
>
> Hi, Richard. I don't understand the "relocate all your ISP routines
> into RAM" part. What ISP routines? Shouldn't disabling all interrupts
> be enough?
>
> Guille
>
> --- In lpc2000@yahoogroups.com, Richard Duits <yahoo@r...> wrote:
> >
> > Hi Guillermo,
> >
> > You can call the IAP routines from code running in flash, but you
> must
> > be sure that nothing will use the flash during the IAP call. This
> > usually means that you disable interrupts or relocate all your ISP
> > routines into RAM.
> >
> > Richard.
> >
> >
> > Guillermo Prandi wrote:
> >
> > > Hi, Bob... I am worried about what you just wrote. I'm in the
> middle
> > > of an urgent project and I took for granted that I can use IAP
> while
> > > my code runs from Flash without giving it a second tought. Can you
> > > please explain the concept a little more? I'm reading the LPC2138
> > > user's manual at 20.4.10 and it suggests it is possible as long as
> > > you disable interrupts while using IAP (or make interrupts to run
> > > from RAM).
> > >
> > > Guille
> > >
> >