rtc.c

来自「范例程序 SONiX」· C语言 代码 · 共 55 行

#include <sn8p26l38.h>


unsigned int RTC_buf;



void main (void)
{
	FT0ENB=0;					
	FT0TB=1;				
					//T0RATE is not available in RTC mode. 
					//The T0 interval time is fixed at 0.5 sec

					//T0C is 256 counts and generatesT0 0.5 sec interval time.
 					//Donˇt change T0C value inRTC mode				
	FT0ENB=1;
	
	FT0IEN=1;  		// Enable T0 interrupt
	FT0IRQ=0;		// Clean T0 interrupt request flag

	FGIE=1;			// all interrupt operation	
	
	while (1)
	{
//==================================================================
//	
//	User code 
//
//==================================================================
	}				
								
}


__interrupt isr (void)
{

	if((FT0IEN==1)&&(FT0IRQ==1))
    {
		FT0IRQ=0;
		RTC_buf++;		//0.5sec add one time

	}


}