此程序是控制电机3相通电的开关程序 temp=srd_active[0]+(srd_active[1]*2)+(srd_active[2]*4)+(work_mode*8)+(pwm_mode*16); *ptrACTIVE=temp; 其中srd_active[0]=0 srd_active[1]=0 srd_active[2]=0 work_mode=1 pwm_mode=1 *ptrACTIVE不知道是什么其中srd_active的3个值是0或1,是电机3相的高低电平谁能告诉我*ptrACTIVE得的值是什么，*ptrACTIVE是什么跪求 源代码给出：  if (direct==forward)              
        {
     switch(rotor)                                  {
       case 1:
             srd_active[0]=0x1;
             srd_active[1]=0x0;
             srd_active[2]=0x0;
             break; 
       case 2:
             srd_active[0]=0x0;
             srd_active[1]=0x1;
             srd_active[2]=0x0;
             break;
       case 4:
             srd_active[0]=0x0;
             srd_active[1]=0x0;
             srd_active[2]=0x1;
             break;
       case 3:
             srd_active[0]=0x1;
             srd_active[1]=0x1;
             srd_active[2]=0x0;
             break;
             
        }
       }
  temp=srd_active[0]+(srd_active[1]*2)+(srd_active[2]*4)+(work_mode*8)+(pwm_mode*16);
    *ptrACTIVE=temp; 如果rotor=2 我看的就是这个，都给出来了 继续跪求 [ 本帖最后由 lnasxywzl 于 2011-6-27 16:24 编辑 ] 此帖出自小平头技术问答