foros electrónica .es

#include <micro214x.h>
#include <micro214x_types.h>
#include <arm_irqs.h>
#include <LPC214x.h>

static void Timer0_Isr (void) __attribute__ ((interrupt("IRQ")));
static void Timer0_Isr(void)
{ 
//INICIO proceso de interrupcion
...
//FIN proceso de interrupcion
   T0IR     = 1 ;//clear the interrupt MR0
   VICVectAddr = 0; //Reset VIC
}

int main(void)
{
   T0CTCR   = 0;// Timer Mode: counts on rising edge of PCLK
   T0PR     = 0;//Prescale counter register = 0 => counts every PCLK
   T0TC     = 0;//Timer 0 inicial value
   T0PC     = 0;// Prescale counter initial value
   T0MCR    = 3;//generate interrupt and reset counter on Match
   T0MR0    = PERIOD; //match register 0 set to a predefined value
   VIC_setup_irq(TIMER0_INT,   (void *)(Timer0_Isr));
   T0TCR    = 1;//enable TC0 for counting
//INICIO otros procesos
...
//FIN otro procesos
}//End  Main()