MEGA128+DS1302时钟模块编程

MEGA128+时钟DS1302#include <iom128v.h>
#include <macros.h>
#define uchar unsigned char
#define uint unsigned int
//************************************************************************
//ds1302显示变量
unsigned char year;//年
unsigned char month;//月
unsigned char week;
unsigned char date;//日
unsigned char hour;//时
unsigned char minute;//分
unsigned char second;//秒
uchar led_buf[8];
uchar led_buf1[14];
/************ds1302端口定义**********/
#define DS1302_PORT PORTD
#define DS1302_INPORT PIND
#define DS1302_DDR DDRD
#define DS1302_RST PD7
#define DS1302_IO   PD6
#define DS1302_SCLK PD5
//ds1302相关寄存器定义
#define Set_ds1302_rst_ddr() DS1302_DDR |=BIT(DS1302_RST)
#define Set_ds1302_rst()      DS1302_PORT|=BIT(DS1302_RST) 
#define Clr_ds1302_rst()      DS1302_PORT &=~ BIT(DS1302_RST)

#define Set_ds1302_io_ddr()   DS1302_DDR|=BIT(DS1302_IO) 
#define Clr_ds1302_io_ddr()   DS1302_DDR&=~ BIT(DS1302_IO) 
#define Set_ds1302_io()       DS1302_PORT|=BIT(DS1302_IO) 

#define Clr_ds1302_io()       DS1302_PORT&=~ BIT(DS1302_IO) 
#define In_ds1302_io()        DS1302_INPORT&=~ BIT(DS1302_IO) 

#define Set_ds1302_sclk_ddr() DS1302_DDR |=BIT(DS1302_SCLK)
#define Set_ds1302_sclk()     DS1302_PORT|=BIT(DS1302_SCLK) 
#define Clr_ds1302_sclk()     DS1302_PORT&=~ BIT(DS1302_SCLK) 

#define ds1302_second_reg           0x80 
#define ds1302_minute_reg           0x82 
#define ds1302_hour_reg        0x84
#define ds1302_date_reg        0x86 
#define ds1302_month_reg          0x88 
#define ds1302_week_reg        0x8a 
#define ds1302_year_reg           0x8c 
#define ds1302_control_reg    0x8e 
#define ds1302_charger_reg    0x90 
#define ds1302_clkburst_reg    0xbe

void Ds1302_writebyte(uchar data);   //DS1302数据的写字节
void Ds1302_write(uchar reg,uchar data);//DS1302数据的字节写
uchar Ds1302_read(uchar reg);    //DS1302数据的字节读
void Ds1302_write_time(void);    //DS1302时间的设置
void Ds1302_read_time(void);    //DS1302时间的读取
uchar Check_ds1302(void);     //DS1302设备的检查
void Delay1302(void);      //scLk延时
void Ds1302_initral(void);     //初始化1302
void Ds1302_Set(uchar y,uchar m,uchar d,uchar h,uchar f,uchar s,uchar week);//DS1302设置程序
void Ds1302_writeuchar(uchar data)//DS1302数据的写1字节
{ 
unsigned char i;