智能车制作

标题: 舵机问题 [打印本页]

作者: wsyn470 时间: 2009-4-30 15:38
标题: 舵机问题
void SignalProcess(unsigned int signal1,unsigned int signal2)
{
  int deviation;
  deviation=signal1^signal2;
  switch(deviation)
  {
case 0:
{
   Direction=1500;break;
}
......
case 64:
{
   if(signal1>0)
   {
      Direction=3000;
   }
   else
   {
      Direction=0;
   }
   break;
}

default:
{
   break;
}
  }
  ......
if(Direction<462||Direction>2539)
  {
Velocity=LOWSPEED;
  }
  else if(Direction<1385||Direction>1731)
  {
Velocity=MIDSPEED;
  }
  else
  {
Velocity=HIGHSPEED;
  }
A,B采集,之后调用PWMout(Direction,Velocity)输出,但舵机在开机回正之后就不动了,事实上switch语句好象没起作用,Direction(初值1500)没变,Velocity总是为LOWSPEED;不解!

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