sine_resister._c

国内某测温系统信号处理处理板的代码

#include "config.h"

void ml2035(unsigned int data,unsigned mod)
{
	unsigned char i;
	//CLI();
	PORTA &= ~(1<<sck);
	PORTA &= ~(1<<lati);
	asm("NOP");
 for (i=0;i<15;i++)
 {
 	if (data & 1)
 		PORTA |= 1<<sid;
 	 else
 	 	PORTA &= ~(1<<sid);
 	PORTA |= 1<<sck;
 	asm("NOP");
 	PORTA &= ~(1<<sck);
 	data>>=1;
 }
  	PORTA |= 1<<sck;
 	PORTA |= 1<<lati;
 	PORTA &= ~(1<<sck);
 if(mod)
 	PORTA &= ~(1<<lati);
}                                               
      
	  
	  
	  
void ds1666(unsigned int num,unsigned int mod1)
{
	unsigned int j;
	CLI();
	if(mod1==0)
		PORTC &=~(1<<ud);
	else
		PORTC |=1<<ud;
	for (j=0;j<num;j++)
	{
		PORTC |=1<<inc;
		delay_us(1);
		PORTC &=~(1<<inc);
		delay_us(1);
	}
	PORTC |=1<<cs;
	PORTC |=1<<inc;
	SEI();
}