dac8501.c

TI芯片DAC8501驱动程序

#include <reg52.h>
#include <intrins.h>

#define uint unsigned int 
#define uchar unsigned char

sbit DAC_CLK=P1^1;
sbit DAC_SYNC=P1^2;
sbit DAC_DIN=P1^0;


void DAC_send(uchar mode,uint dat)
{
	uchar i;
	DAC_CLK=0;
	DAC_SYNC=1;

	DAC_SYNC=0;
	
	
	for(i=0;i<8;i++)
	{
		//DAC_CLK=1;
		DAC_DIN=mode&0x80;
		DAC_CLK=1;
	//	DAC_CLK=0;
		mode<<=1;
		DAC_CLK=0;
	}

	for(i=0;i<16;i++)
	{
		
		DAC_DIN=dat&0x8000;
		DAC_CLK=1;
		
		dat<<=1;
		DAC_CLK=0;
	}
	DAC_SYNC=1;
}

void main()
{
	//uint t;
	while(1)
	{
		//t++;
		DAC_send(0x00,26214);
	}
}