电子日历时钟程序(2)

BYTE read7279(BYTE Command) /*HD7279读函数*/ {

Send_Byte(Command); return(Receive_Byte()); }

/*HD7279发送字节函数*/

void Send_Byte(BYTE Data_Out) {

BYTE i;

Long_Delay(); for(i=0;i<8;i++) {

if(Data_Out&0x80) Set_Bit(HD7279_Data); else Clear_Bit(HD7279_Data); Set_Bit(HD7279_Clk); Short_Delay();

Clear_Bit(HD7279_Clk); Short_Delay();

Data_Out=Data_Out<<1; }

Clear_Bit(HD7279_Data); }

BYTE Receive_Byte(void) /*HD7279接收字节函数*/ {

BYTE i,Data_In;

Set_Bit(HD7279_Data); Long_Delay(); for(i=0;i<8;i++) {

Set_Bit(HD7279_Clk); Short_Delay();

Data_In=Data_In<<1; if(HD7279_Data)

Data_In=Data_In|0x01; Clear_Bit(HD7279_Clk); Short_Delay(); }

Clear_Bit(HD7279_Data); return(Data_In);

}

/*日期显示*/

void discalendar(void) {

write7279(DECODE0,day); write7279(DECODE0+1,day/10);

write7279(DECODE0+2,month); write7279(DECODE0+3,month/10);

write7279(DECODE0+4,year); write7279(DECODE0+5,(year/10)); write7279(DECODE0+6,(year/100)); write7279(DECODE0+7,year/1000); }

/*时间显示*/ void distime(void) {

write7279(DECODE0, second); write7279(DECODE0+1,second/10);

write7279(UNDECODE+2,0x01);

write7279(DECODE0+3,minute); write7279(DECODE0+4,minute/10);

write7279(UNDECODE+5,0x01);

write7279(DECODE0+6,hour); write7279(DECODE0+7,hour/10); }