delay.c

1602基于AVRMEGA的液晶显示

#include "delay.h"

/*时钟为8MHZ*/
void delay_1us(void)
{
   asm("nop");
}
void delay_us(unsigned int itimes)
{
   unsigned int itemp;
   for (itemp=0;itemp<itimes;itemp++)
      {
	     delay_1us();
	  }
}
void delay_1ms(void)
{
   unsigned int itemp;
   for(itemp=1;itemp<1142;itemp++);
}
void delay_ms(unsigned int itimes)
{
   unsigned int itemp;
   for (itemp=0;itemp<itimes;itemp++)
      {
	     delay_1ms();
	  }
}