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We have 4 interrupt ,2 extenal and 2 timer
EXT0 priority 4, EXT1 priority 3, Timer1 priority 2, Timer2 priority 1,
Now we want implement handler logic in such a way that If timer 1 is being processed and EXT0 occurs then we must switch to EXT0 Handler complete it and then resume timer 1 Handler.
In short we must not miss any Interrupt and also give high priority interrupt first preference.
Is it possible in ARM926ejs core based LPC3250(Nxp controller),though ARM does not have any register which assign priority to Interrupts.