MC9S12G128 64pin单片机利用中断设计一个灯的闪烁，为什么程序跑不起来

只看该作者 · 2015-9-7 10:40

#include <hidef.h>    /* common defines and macros */
#include "derivative.h"    /* derivative-specific definitions */

void Mcu_InitClock(void)
{
CPMUPROT_PROT = 0U; /*不对时钟配置寄存器进行保护*/

CPMUCLKS_PLLSEL = 1U; /*fbus = fpll/2*/
CPMUCLKS_PSTP = 0U; /*伪睡眠时时钟源停止*/
CPMUCLKS_COPOSCSEL1 = 0U;
CPMUCLKS_COPOSCSEL0 = 0U;/*选择内部1MHZ时钟*/
CPMUCLKS_PRE = 0U; /*RTI时钟在伪睡眠时停止*/
CPMUCLKS_PCE = 0U;    /*COP时钟在伪睡眠时停止*/
CPMUCLKS_RTIOSCSEL = 0U; /*选择RTI时钟源为内部时钟*/

CPMUSYNR_VCOFRQ = 0x01U; /*48MHZ<fvco<50MHZ */
CPMUSYNR_SYNDIV = 0x18U; /*PLL倍频24+1=25倍*/

CPMUPOSTDIV_POSTDIV = 0U;

CPMUPLL_FM = 0U; /*FM OFF*/

while(CPMU标志寄存器_LOCK == 0U)
{
/* Wait until the PLL is within the desired tolerance of the target frequency */
}

CPMUPROT_PROT = 10U; /*对时钟配置寄存器进行保护*/

CPMUCOP_WCOP = 0U; /*WDG为普通模式,非窗口模式*/
CPMUCOP_RSBCK = 1U; /*BDM调试时RTI和COP时钟停止*/
CPMUCOP_WRTMASK = 1U;
CPMUCOP_CR = 0U;
}
#pragma CODE_SEG NON_BANKED

  interrupt VectorNumber_Vrti void ISR_RTI(void)
  {

   unsigned char i = 0;
   i++;
   if(i >= 1) {
   PT0AD_PT0AD3 = 0;
      i = 0;
   }

   asm("NOP");
  }
  #pragma CODE_SEG DEFAULT