智能车制作

标题: 请高手指出错误，重赏，谢谢！ [打印本页]

作者: zhangcunyiwei 时间: 2010-11-30 07:57
标题: 请高手指出错误，重赏，谢谢！
#include <hidef.h>    /* common defines and macros */
#include "derivative.h"/* derivative-specific definitions */
#define key1 PORTE_PE2
#define key2 PORTE_PE3
#define key3 PORTE_PE4
float x;
uint sintab[128]={
128,134,140,147,153,159,165,171,177,182,188,193,199,204,209,213,
218,222,226,230,234,237,240,243,245,248,250,251,253,254,254,255,
255,255,254,254,253,251,250,248,245,243,240,237,234,230,226,222,
218,213,209,204,199,193,188,182,177,171,165,159,153,147,140,134,
128,122,116,109,103,97,91,85,79,74,68,63,57,52,47,43,
38,34,30,26,22,19,16,13,11,8,6,5,3,2,2,1,
1,1,2,2,3,5,6,8,11,13,16,19,22,26,30,34,
38,43,47,52,57,63,68,74,79,85,91,97,103,109,116,122} ;
//*****延时函数*******//
void delay(int ms)
{
int i;
while(ms--)
{
  for(i=0;i<120;i++);
  }
} //*****PIT初始化******//
void PIT_init(void)
{
PITCFLMT_PITE=0;       //定时中断通道0关
PITCE_PCE0=1;          //定时器通道0使能
PITINTE_PINTE0=1;       //定时器中断通道0中断使能
PITMTLD0=199;          //8位微定时器初值设定
PITLD0=6000-1;          //16位定时器初值设定
PITCFLMT_PITE=1;       //定时器通道0使能
}
//*********时钟初始化********//
void PLL_INIT()
{

REFDV=2;
SYNR=1;
while(!(CRGFLG&0x08));
CLKSEL=0x80;
}
//********PWM模块*********//
void PWM_INIT( )
{
            PWME_PWME0=0x00;          //PWM 禁止
            PWMPER0=0x03;             //时钟预分频寄存器设置
            PWMSCLA=15;                //时钟设置
            PWMSCLB=15;                //时钟设置
            PWMCLK_PCLK0=1;          // 时钟源的选择
            PWMPOL_PPOL0=1;          //极性设置
            PWMCAE_CAE0=0;             //对齐方式设置
            PWMCTL=0x00;             //控制寄存器设置
            PWMPER0=255;             //对齐方式设置
            PWMDTY0=0;                //对齐方式设置
            PWME_PWME0=1;             //PWM使能
}

//*********按键函数（防抖）**************//
void key(void)
{
         if(key1==0)
         {
            delay(1);
            if(key1==0)  x=1;
         }
            if(key2==0)
            {
            delay(1);
            if(key2==0 ) x=2;
         }
         if(key3==0)
         {
         delay(1);
         if(key3==0 ) x=3;
         }
}
//******主函数********//
void main()
{
  PLL_INIT();
PIT_init();
  PWM_INIT();
  DDRE=0x00;


    EnableInterrupts;
  for(;;)
{
   key();
      _FEED_COP(); /* feeds the dog */
      } /* loop forever */
  /* please make sure that you never leave main */
}
#pragma CODE_SEG NON_BANKED
void interrupt 66 seg( )
{ static int  i=0,j=255,a=255,b=0;
PITTF_PTF0=1;
   if(x==1) {//*********三角波**********//

            if(i<255)
               { i++;
                  PWMDTY0=i;
               }

            if(i==255)
         {
            j--;
            PWMDTY0=j;
            if(j==0)
            {
               i=0 ;
            j=255;
            }
            }
            }
   if(x==2) { //*********锯齿波**************//


            a--;
            PWMDTY0=a;
            if(a==0)

            a=255;
            }
   if(x==3)  {//*********正弦波 ********//

         b++;
         PWMDTY0=sintab[b];
         if(b>128)
         b=0;

   }
}

作者: anxingle 时间: 2011-1-13 17:59
你装了操作系统啊？怎么看不懂啊？

欢迎光临智能车制作 (http://dns.znczz.com/)