delay._h

来自「AVR单片机六路ADC采集与七段数码管显示采集值」· _H 代码 · 共 23 行

#IFNDEF F_CPU
#define F_CPU 8000000
#ENDIF

//延时,对应主频为8MHz
void Delay_MS(unsigned int iTime) 
{   unsigned char i; 
    while(iTime>0) 
    { 
        for (i=1;i<187;i++) 
            asm("nop"); 

        iTime--; 
    } 
} 

//主频8MHz
void Delay_US(unsigned int iTime) 
{
    unsigned int i,j;
	j = iTime * 8;
	for(i=0;i<j;i++);
}