Lpc2000

--- In lpc2000@yahoogroups.com, "Karl Olsen" <kro@p...> wrote:
> 
> --- In lpc2000@yahoogroups.com, "rjwal3" <rossjwalker@n...> wrote:
> > 
> > I have set the UART interrupt up to run from RAM so I can use it 
> > during IAP writing to FLASH yet it causes the same problem as if 
I 
> > were running the interrupt from FLASH.
> > Does any one have any experience this?
> > 
> > The interrupt vector in startup.s is:
> > 
> >    LDR     PC, [PC, #-0x0FF0]     /* Vector from VicVectAddr */
> > 
> >  And the vector address for my UART1 interrupt is my RAM 
function:  
> > 
> >   VICVectAddr2 =  (unsigned long)u1intRAM;
> > 
> > 
> > This works fine by itself, but not when I try to use IAP with 
the 
> > UART interrupt anabled and all the rest disabled.
> > 
> > Could it still be getting something from FLASH?
> 
> Have you relocated the interrupt vectors, i.e. copied them from 
flash 
> to RAM and changed MEMMAP?
> 
> Karl Olsen


yes I have copied the interrupt vectors to 0x4000000, and the 
interrupt procedures are in RAM as well and MEMMAP = 2.
This All works fine unless I try to use it in conjunction with IAP, 
and the IAP works fine provided the interrupt is disabled. I can't 
see why it wont work, I guess more research is required.I