DS1302显示时间

void DS1302InputByte(unsigned char d) //实时时钟写入一字节(内部函数)
{
unsigned char i;
ACC = d;
for(i=8; i>0; i--)
{
DS1302_IO = ACC0; //相当于汇编中的 RRC
DS1302_CLK = 1;
DS1302_CLK = 0;
ACC = ACC >> 1;
}
}

unsigned char DS1302OutputByte(void) //实时时钟读取一字节(内部函数)
{
unsigned char i;
for(i=8; i>0; i--)
{
ACC = ACC >>1; //相当于汇编中的 RRC
ACC7 = DS1302_IO;
DS1302_CLK = 1;
DS1302_CLK = 0;
}
return(ACC);
}

void Write1302(unsigned char ucAddr, unsigned char ucDa)//ucAddr: DS1302地址, ucData: 要写的数据
{
DS1302_RST = 0;
DS1302_CLK = 0;
DS1302_RST = 1;
DS1302InputByte(ucAddr); // 地址，命令
DS1302InputByte(ucDa); // 写1Byte数据
DS1302_CLK = 1;
DS1302_RST = 0;
}

unsigned char Read1302(unsigned char ucAddr)//读取DS1302某地址的数据
{
unsigned char ucData;
DS1302_RST = 0;
DS1302_CLK = 0;
DS1302_RST = 1;
DS1302InputByte(ucAddr|0x01); // 地址，命令
ucData = DS1302OutputByte(); // 读1Byte数据
DS1302_CLK = 1;
DS1302_RST = 0;
return(ucData);
}

void DS1302_GetTime(SYSTEMTIME *Time) //获取时钟芯片的时钟数据到自定义的结构型数组
{
unsigned char ReadValue;
ReadValue = Read1302(DS1302_SECOND);
Time->Second = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_MINUTE);
Time->Minute = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_HOUR);
Time->Hour = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_DAY);
Time->Day = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_WEEK);
Time->Week = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_MONTH);
Time->Month = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
ReadValue = Read1302(DS1302_YEAR);
Time->Year = ((ReadValue&0x70)>>4)*10 + (ReadValue&0x0F);
}

void DateToStr(SYSTEMTIME *Time) //将时间年,月,日,星期数据转换成液晶显示字符串,放到数组里DateString[]
{ if(hide_year<2) //这里的if,else语句都是判断位闪烁,<2显示数据,>2就不显示,输出字符串为 2007/07/22
{
Time->DateString[0] = 2;
Time->DateString[1] = 0;
Time->DateString[2] = Time->Year/10 + 0;
Time->DateString[3] = Time->Year%10 + 0;
}
else
{
Time->DateString[0] = ;
Time->DateString[1] = ;
Time->DateString[2] = ;
Time->DateString[3] = ;
}
Time->DateString[4] = /;
if(hide_month<2)
{
Time->DateString[5] = Time->Month/10 + 0;
Time->DateString[6] = Time->Month%10 + 0;
}
else
{
Time->DateString[5] = ;
Time->DateString[6] = ;
}
Time->DateString[7] = /;
if(hide_day<2)
{
Time->DateString[8] = Time->Day/10 + 0;
Time->DateString[9] = Time->Day%10 + 0;
}
else
{
Time->DateString[8] = ;
Time->DateString[9] = ;
}
if(hide_week<2)
{
week_value[0] = Time->Week%10 + 0; //星期的数据另外放到 week_value[]数组里,跟年,月,日的分开存放,因为等一下要在最后显示
}
else
{
week_value[0] = ;
}
week_value[1] = \0;

Time->DateString[10] = \0; //字符串末尾加 \0 ,判断结束字符
}

void TimeToStr(SYSTEMTIME *Time) //将时,分,秒数据转换成液晶显示字符放到数组 TimeString[];
{ if(hide_hour<2)
{
Time->TimeString[0] = Time->Hour/10 + 0;
Time->TimeString[1] = Time->Hour%10 + 0;
}
else
{
Time->TimeString[0] = ;
Time->TimeString[1] = ;
}
Time->TimeString[2] = :;
if(hide_min<2)
{
Time->TimeString[3] = Time->Minute/10 + 0;
Time->TimeString[4] = Time->Minute%10 + 0;
}
else
{
Time->TimeString[3] = ;
Time->TimeString[4] = ;
}
Time->TimeString[5] = :;
if(hide_sec<2)
{
Time->TimeString[6] = Time->Second/10 + 0;
Time->TimeString[7] = Time->Second%10 + 0;
}
else
{
Time->TimeString[6] = ;
Time->TimeString[7] = ;
}
Time->DateString[8] = \0;
}

void Initial_DS1302(void) //时钟芯片初始化
{
unsigned char Second=Read1302(DS1302_SECOND);
if(Second&0x80) //判断时钟芯片是否关闭
{
Write1302(0x8e,0x00); //写入允许
Write1302(0x8c,0x07); //以下写入初始化时间 日期:07/07/25.星期: 3. 时间: 23:59:55
Write1302(0x88,0x07);
Write1302(0x86,0x25);
Write1302(0x8a,0x07);
Write1302(0x84,0x23);
Write1302(0x82,0x59);
Write1302(0x80,0x55);
Write1302(0x8e,0x80); //禁止写入
}