tlc5615.c

基于tlc5615芯片的DAC源码

/*********************************************
 example program for 51 download board
  @11.0592MHz
 test TLC5615
 www.mcufan.com
*********************************************/
#include <reg52.h>  
sbit DIN=P2^0;		/*dac 	i/o	*/
sbit SCLK=P1^1;
sbit CS=P1^2;

void delay(unsigned us)        //delay time
{while(us--);
}


void wr_dac(unsigned int DAT)
{
	unsigned char i;
		SCLK=0;		/*INITIAL*/
		delay(5);
		DIN=0;
		delay(5);
		CS=1;
		delay(5);
		CS=0;
		DAT=DAT<<6;
		for(i=0;i<12;i++)
		{
			DIN=DAT&0x8000;
			DAT=DAT<<1;
			SCLK=1;	
			delay(5);
			SCLK=0;	
		}
		delay(5);
		CS=1;
}
main()
{
	unsigned int dac=0;
	while(1)
	{
		dac=1023;
		wr_dac(dac);
		dac=0;
		wr_dac(dac);

	}
}