哪位谁帮忙看一下，我的timer0进入不了中断

只看该作者 · 2012-4-8 13:24

#include <intrinsics.h>
#include <stdio.h>
#include <NXP/iolpc2132.h>
int flag = 0;
#define IRQV  0x18
#pragma vector=IRQV
__irq __arm void irq_handler (void)
{
  void (*interrupt_)();
  unsigned int vector;

  vector = VICVectAddr;
  interrupt_ = (void(*)())vector;
  if(interrupt_ != NULL)
  {
interrupt_();
  }
  else
  {
VICVectAddr = 0;
  }
}

void IRQ_Timer0 (void)
{
  T0IR = 0x01; /* 清除中断标志 */

  if (flag)
  {
IO0SET_bit.P0_12 = 1;
flag = 0;
  }
  else
  {
IO0CLR_bit.P0_12 = 1;
flag = 1;
  }

  VICVectAddr = 0x00; /* 通知VIC中断处理结束 */
}
void VicInit(void)
{
  VICIntSelect = 0x0; /* 所有中断通道设置为IRQ中断*/
  VICIntEnClear = 0xFFFFFFFF;
  VICSoftIntClear = 0xFFFFFFFF;
  VICProtection = 0;
  VICVectAddr = 0;
  VICDefVectAddr = 0;//VICVectCntl1

  VICVectAddr0 = VICVectAddr1 = VICVectAddr2 = VICVectAddr3 =\
  VICVectAddr4 = VICVectAddr5 = VICVectAddr6 = VICVectAddr7 =\
  VICVectAddr8 = VICVectAddr9 = VICVectAddr10 = VICVectAddr11 =\
  VICVectAddr12 = VICVectAddr13 = VICVectAddr14 = VICVectAddr15 = 0;

  VICVectCntl0 = VICVectCntl1 = VICVectCntl2 = VICVectCntl3 =\
  VICVectCntl4 = VICVectCntl5 = VICVectCntl6 = VICVectCntl7 =\
  VICVectCntl8 = VICVectCntl9 = VICVectCntl10 = VICVectCntl11 =\
  VICVectCntl12 = VICVectCntl13 = VICVectCntl14 = VICVectCntl15 = 0;
}

void Gpio_Init(void)
{
  PINSEL0 = PINSEL0&0xF0FFFFFF; //P0.12,P0.13 设置为GPIO,不影响其他引脚的功能

  IO0DIR_bit.P0_12 = 1;          //设置P0.12方向
  IO0DIR_bit.P0_13 = 1;          //设置P0.13方向

  IO0SET_bit.P0_12 = 1;
  IO0SET_bit.P0_13 = 1;
}
void Timer0_Init(void)
{
  T0TCR = 2;
  T0CTCR = 0;
  T0PR = 0;
  T0MR0 = Fpclk;
  T0MCR = 3;
  T0EMR = 0;

  VICIntSelect = 0x0;
  VICVectAddr0 = (unsigned int)IRQ_Timer0;
  VICVectCntl0 = 0x20 | 0x04;
  VICIntEnable = 0x10;
  T0TCR = 1;
}

void main()
{
  MEMMAP_bit.MAP = 2;

  __disable_interrupt();

  VicInit();
  Gpio_Init();
  Timer0_Init();

  __enable_interrupt();

  while(1)
  {
;
  }

}

(842267939) 17:49:11
我想定时器0产生中断，进入中断，但是进入不了啊