Lpc2000

I solved the Problem, it was a wrong startupcode that blocked the
modus change.

But now I have the problem that the interrupt causes an exaption, I
think. The ISR is never reached and if I stop the programm the pc is
pointing to 0x7fffe2ae, this must be somewhere in the RAM-mapped
bootloader, how could this happen and how could I fix this?

--- In lpc2000@yahoogroups.com, "digtalfreak" <digitalfreak@n...> wrote:
> I am using gcc and insignt and have problems using Interrupts.
> I'm trying to use Timer0 to generate a Interrupt, similar to the Keil
> example "blinky", but the interupt is never generatet because the cpsr
> register seems to be allways switched back to 0xd0. Looks like my "msr
> cpsr_c, #0x10" is ingored or overwriten.
> btw... the precompiled keil example works with insight, timer is
> running and genarating interrupts.
> 
> please help...