基本介紹
- 中文名：AVR MEGA16 DS1302源程式
- 套用學科：計算機
- 適用領域範圍：命名定義
- 屬性：程式製作
//MEGA16 7.3728MHz石英晶體 iccavr6.31a//相關定義：#define uint unsigned int#define uchar unsigned char#define DS1302_RST 0 //pc0#define DS1302_SDA 1 //pc1#define DS1302_SCLK 6 //pc6//ds1302相關//DS1302_RST=1#define Set_DS1302_RST() PORTC|=1<<DS1302_RST//DS1302_RST=0#define Clr_DS1302_RST() PORTC&=~(1<<DS1302_RST)//DS1302_SDA=1#define Set_DS1302_SDA() PORTC|=1<<DS1302_SDA//DS1302_SDA=0#define Clr_DS1302_SDA() PORTC&=~(1<<DS1302_SDA)//DS1302_SCLK=1#define Set_DS1302_SCLK() PORTC|=1<<DS1302_SCLK//DS1302_SCLK=0#define Clr_DS1302_SCLK() PORTC&=~(1<<DS1302_SCLK)//DS1302的SDA置為輸出腳#define Set_DS1302_DDRSDA() DDRC|=1<<DS1302_SDA//DS1302的SDA置為輸入腳#define Clr_DS1302_DDRSDA() DDRC&=~(1</全局變數//為了方便，我把個位和十位分開了uchar year1=0x88;uchar year0=0x88;uchar month1=0x88;uchar month0=0x88;uchar date0=0x88;uchar date1=0x88;uchar day=0x88;uchar hour1=0x88;uchar hour0=0x88;uchar minute1=0x88;uchar minute0=0x88;uchar second1=0x88;uchar second0=0x88;//自程式開始void DS1302_Write(uchar reg,uchar data){uchar i;Set_DS1302_DDRSDA();Clr_DS1302_RST();asm("nop");asm("nop");Clr_DS1302_SCLK();asm("nop");asm("nop");Set_DS1302_RST();asm("nop");asm("nop");for(i=8;i>0;i--){ if(reg&0x01) Set_DS1302_SDA();else Clr_DS1302_SDA();asm("nop");asm("nop");Set_DS1302_SCLK(); asm("nop");asm("nop");Clr_DS1302_SCLK();asm("nop");asm("nop");reg>>=1;}for(i=8;i>0;i--){ if(data&0x01) Set_DS1302_SDA();else Clr_DS1302_SDA();asm("nop");asm("nop");Set_DS1302_SCLK();asm("nop");asm("nop");Clr_DS1302_SCLK();asm("nop");asm("nop");data>>=1;}Clr_DS1302_RST();asm("nop");asm("nop");Clr_DS1302_DDRSDA();}uchar DS1302_Read(uchar reg){uchar data=0,i;reg+=1;//讀標誌Set_DS1302_DDRSDA();Clr_DS1302_RST();asm("nop");asm("nop");Clr_DS1302_SCLK();asm("nop");asm("nop");Set_DS1302_RST();asm("nop");asm("nop");for(i=8;i>0;i--){
if(reg&0x01) Set_DS1302_SDA();else Clr_DS1302_SDA();asm("nop");asm("nop");Set_DS1302_SCLK(); asm("nop");asm("nop"); Clr_DS1302_SCLK();asm("nop");asm("nop");reg>>=1;}Clr_DS1302_DDRSDA();for(i=8;i>0;i--){ data>>=1;if((PINC&(1<<DS1302_SDA))==(1<<DS1302_SDA)) data|=0x80;Set_DS1302_SCLK();asm("nop");asm("nop");Clr_DS1302_SCLK();asm("nop");asm("nop"); }Clr_DS1302_RST();asm("nop");asm("nop");return(data);}uchar Check_DS1302(void){ DS1302_Write(DS1302_CONTROL_Reg,0x80); if(DS1302_Read(DS1302_CONTROL_Reg)==0x80) return 1; return 0;}void DS1302_Init(void){DS1302_Write(DS1302_CONTROL_Reg,0x00);//關閉防寫 DS1302_Write(DS1302_SEC_Reg,0x80);//暫停 DS1302_Write(DS1302_CHARGER_Reg,0xa9);//涓流充電DS1302_Write(DS1302_YEAR_Reg,0x04); //年DS1302_Write(DS1302_MONTH_Reg,0x12); //月DS1302_Write(DS1302_DATE_Reg,0x09); //日DS1302_Write(DS1302_DAY_Reg,0x04); //周DS1302_Write(DS1302_HR_Reg,0x10); //時DS1302_Write(DS1302_MIN_Reg,0x25); //分DS1302_Write(DS1302_SEC_Reg,0x00); //秒
DS1302_Write(DS1302_CONTROL_Reg,0x80);//打開防寫}void ReadTime(void){uchar data;data=DS1302_Read(DS1302_YEAR_Reg);//年year0=data&0x0f;year1=data>>4;data=DS1302_Read(DS1302_MONTH_Reg);//月month0=data&0x0f;month1=(data>>4)&0x01;data=DS1302_Read(DS1302_DATE_Reg);//日date0=data&0x0f;date1=(data>>4)&0x03;data=DS1302_Read(DS1302_DAY_Reg);//周day=data&0x07;data=DS1302_Read(DS1302_HR_Reg);//時hour0=data&0x0f;hour1=(data>>4)&0x03;data=DS1302_Read(DS1302_MIN_Reg);//分minute0=data&0x0f;minute1=(data>>4)&0x07;data=DS1302_Read(DS1302_SEC_Reg);//秒second0=data&0x0f;second1=(data>>4)&0x07;}
