/*-----------------------------------------------------------------------
延時(shí)函數(shù)
系統(tǒng)時(shí)鐘：18.423M
-----------------------------------------------------------------------*/



void delay_nus(unsigned long int n)       //N us延時(shí)函數(shù)
  {
   unsigned int i;
   unsigned int j;
   for (j=0;j<n;j++)
   {
   for (i=0;i<3;i++);
   }
  }
  
void delay_1ms(unsigned int n)                 //nms延時(shí)函數(shù)
  {
   unsigned int i;
   unsigned int j;
   for (j=0;j<n;j++)
   {
   for (i=0;i<3000;i++);
   }
  }