请问PCF8563时钟芯片的官方驱动例程在哪里下载啊？

90hedawrds

项目平台AVR(AT32UC3B512+PCF8563)
需要用到时钟芯片，想请问一下时钟芯片的官方例子在哪里可以下载？论坛里的太多，都没测试过

ssaiwo

就是一个IIC，官网能给什么例子，参考一个自己写行了

粗人

#include"main.h"

#define pcf_read_add         0xa3
#define pcf_write_add        0xa2
#define changeHexToInt(hex)                ( ( ((hex)>>4) *10 ) + ((hex)%16) )
#define changeIntToHex(dec)                ( ( ((dec)/10) <<4 ) + ((dec)%10) )
//时间结构体
struct pcf_MDY{
           unsigned char second;
           unsigned char muite;
           unsigned char hour;
           unsigned char day;
           unsigned char weelk;
           unsigned char month;
           unsigned char year;
};


unsigned char now_time[7]={0,0,0,21,22,17,0};
void set_real_time(void)//出口
{
unsigned char i;
for(i=0;i<6;i++)
{
  now_time[i]=changeIntToHex(now_time[i]);
}
pcf_write_time();
}

void read_real_time(void)//出口
{
unsigned char i;
TWSR=0x00;
TWBR=0x72;
TWAR=0x00;
pcf_read_time();
for(i=0;i<6;i++)
{
  now_time[i]=changeHexToInt(now_time[i]);
}
}

void pcf_start(void)
{
TWCR=(1<<TWINT)|(1<<TWSTA)|(1<<TWEN);
while(!(TWCR&(1<<TWINT)));
}

void pcf_stop(void)
{
TWCR=(1<<TWINT)|(1<<TWEN)|(1<<TWSTO);
}

unsigned char  pcf_read(unsigned char f)
{
unsigned char vibale;
if(f)
TWCR=(1<<TWINT)|(1<<TWEA)|(1<<TWEN);
else
TWCR=(1<<TWINT)|(1<<TWEN);

while(!(TWCR&(1<<TWINT)));
vibale=TWDR;
return vibale;
}
void pcf_write(unsigned char write)
{
TWDR=write;
TWCR=(1<<TWINT)|(1<<TWEN);
while(!(TWCR&(1<<TWINT)));
}

void pcf_read_time(void)
{
pcf_start();
pcf_write(pcf_write_add);
pcf_write(0X02); //写字节地址，秒地址
pcf_start();
pcf_write(pcf_read_add);
now_time[5]=pcf_read(1)&0x7f;//秒
now_time[4]=pcf_read(1)&0x7f;//分
now_time[3]=pcf_read(1)&0x3f;//时
now_time[2]=pcf_read(1)&0x3f;//天
now_time[6]=pcf_read(1)&0x07;//周
now_time[1]=pcf_read(1)&0x1f;//月
now_time[0]=pcf_read(0);//年
pcf_stop();
}
void pcf_write_time(void)
{
pcf_start();
pcf_write(pcf_write_add);
pcf_write(0x02);
pcf_write(now_time[5]);//秒
pcf_write(now_time[4]);//分
pcf_write(now_time[3]);//时
pcf_write(now_time[2]);//天
pcf_write(now_time[6]);//周
pcf_write(now_time[1]);//月
pcf_write(now_time[0]);//年
pcf_stop();
}
void pcf_run(void)   
{
pcf_start();
pcf_write(pcf_write_add);
pcf_write(0x00);
pcf_write(0x00);
pcf_write(0x00);
pcf_stop();
}
void pcf_disbale(void)
{
pcf_start();
pcf_write(pcf_write_add);
pcf_write(0x00);
pcf_write(0x20);
pcf_stop();
}

void pcf_init(void)
{
TWSR=0x00;
TWBR=0x72;
TWAR=0x00;
delay_ms(10);
pcf_run();
delay_ms(10);
}

void SET_TIME_HANDDLE(void)
{
HOUR=22;
MIN=18;
SEC=0;
set_real_time();
}


MEGA48上跑过的，8M时钟，绝对能用。

maoxue121225

要是Linux的话内核里面多的是都不用自己写