2024年5月15日发(作者：张廖念文)

//首先是.h文件

#ifndef __DAC8552_H

#define __DAC8552_H

#include"config.h"

#define SYNC_0 P1OUT&=~BIT0

#define SYNC_1 P1OUT|=BIT0

#define SCLK_0 P1OUT&=~BIT1

#define SCLK_1 P1OUT|=BIT1

#define DIN_0 P1OUT&=~BIT2

#define DIN_1 P1OUT|=BIT2

void port_init();

void write_8552(ulong data);

void DAC_A(ulong data);//启用A通道

void DAC_B(ulong data);//启用B通道

void DAC_AB(ulong data_A,ulong data_B);//启用A、B通道，且同时触发

#endif

//下面为.c文件

#include"DAC8552.h"

void port_init()

{

P1SEL=0X00;

P1DIR=0XFF;

}

void write_8552(ulong data)

{

uchar i;

SYNC_1;

delay_us(1);

SCLK_0;

SYNC_0;

for(i=0;i<24;i++)

{

if(0x800000&data) DIN_1;

else DIN_0;

SCLK_1;

delay_us(1);

SCLK_0;

data=data<<1;

}

delay_us(1);

SYNC_1;

}

void DAC_A(ulong data)

{

ulong ctr=0x10;

data=data|(ctr<<16);

write_8552(data);

}

void DAC_B(ulong data)

{

ulong ctr=0x24;

data=data|(ctr<<16);

write_8552(data);

}

void DAC_AB(ulong data_A,ulong data_B)

{

ulong ctr=0x00;

data_A=data_A|(ctr<<16);

write_8552(data_A);

ctr=0x34;

data_B=data_B|(ctr<<16);

write_8552(data_B);

}

2024年5月15日发(作者：张廖念文)

//首先是.h文件

#ifndef __DAC8552_H

#define __DAC8552_H

#include"config.h"

#define SYNC_0 P1OUT&=~BIT0

#define SYNC_1 P1OUT|=BIT0

#define SCLK_0 P1OUT&=~BIT1

#define SCLK_1 P1OUT|=BIT1

#define DIN_0 P1OUT&=~BIT2

#define DIN_1 P1OUT|=BIT2

void port_init();

void write_8552(ulong data);

void DAC_A(ulong data);//启用A通道

void DAC_B(ulong data);//启用B通道

void DAC_AB(ulong data_A,ulong data_B);//启用A、B通道，且同时触发

#endif

//下面为.c文件

#include"DAC8552.h"

void port_init()

{

P1SEL=0X00;

P1DIR=0XFF;

}

void write_8552(ulong data)

{

uchar i;

SYNC_1;

delay_us(1);

SCLK_0;

SYNC_0;

for(i=0;i<24;i++)

{

if(0x800000&data) DIN_1;

else DIN_0;

SCLK_1;

delay_us(1);

SCLK_0;

data=data<<1;

}

delay_us(1);

SYNC_1;

}

void DAC_A(ulong data)

{

ulong ctr=0x10;

data=data|(ctr<<16);

write_8552(data);

}

void DAC_B(ulong data)

{

ulong ctr=0x24;

data=data|(ctr<<16);

write_8552(data);

}

void DAC_AB(ulong data_A,ulong data_B)

{

ulong ctr=0x00;

data_A=data_A|(ctr<<16);

write_8552(data_A);

ctr=0x34;

data_B=data_B|(ctr<<16);

write_8552(data_B);

}