智能车制作

标题: 请各位学长帮忙看看哪里错了 [打印本页]

作者: ytcx 时间: 2013-3-3 20:43
标题: 请各位学长帮忙看看哪里错了
#include <hidef.h>    /* common defines and macros */
#include "derivative.h"    /* derivative-specific definitions */
//#pragma LINK_INFO DERIVATIVE "mc9s12dg128b"
unsigned char Data1[8]={0xFE,0xFD,0xFB,0xF7,0xEF,0xDF,0xBF,0x7F};
void SetBusCLK_64M(void)
{
CLKSEL=0X00; //disengage PLL to system
PLLCTL_PLLON=1; //turn on PLL
SYNR =0xc0 | 0x07;
REFDV=0x80 | 0x01;
POSTDIV=0x00;    //pllclock=2*osc*(1+SYNR)/(1+REFDV)=128MHz;
_asm(nop);       //BUS CLOCK=64M
_asm(nop);
while(!(CRGFLG_LOCK==1));    //when pll is steady ,then use it;
CLKSEL_PLLSEL =1;          //engage PLL to system;
}
void PIT_init(void)//定时中断初始化函数 5MS定时中断设置
{
PITCFLMT_PITE=0; //定时中断通道0关
PITCE_PCE0=1;//定时器通道0使能
PITMTLD0=64-1;//8位定时器初值设定,64分频，在64MHzBusClock下，为1MHz。即1us
PITLD0=1000-1;//16位定时器初值设定。PITTIME*0.125uS  即1ms中断一次
PITINTE_PINTE0=1;//定时器中断通道0中断使能
PITCFLMT_PITE=1;//定时器通道0使能
}
//void delay(int);

void main(void) {
unsigned char i;

i=0;
SetBusCLK_64M();
PIT_init();

while(1) {

         DDRB=0xff;
         PORTB=Data1[i];
         }

}

void interrupt 66 PIT0(void){
int num,num2;
num++;
  if(num>1999){
  num=0;
  num2++;
  i++;
  if(num2>7){
  num2=0;
  PORTB=0xff;
  i=0;
  }
  }
}

作者: 音之夏萤 时间: 2013-3-4 15:59
至少你要说明一下出现什么问题了吧

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