- #include<stc15f2k60s2.h>
- #include<intrins.h>
- #include<string.h>
- #define uchar unsigned char
- #define uint unsigned int
- sbit RST=P1^2;
- sbit IO=P1^0;
- sbit SCLK=P1^1;
- sbit RS=P5^5;
- sbit RW=P5^4;
- sbit EN=P5^3;
- uchar *WEEK[]={"SUN","***","MON","TUS","WEN","THU","FRI","SAT"};
- uchar LCD_DSY_BUFFER1[]={"DATE 00-00-00 "};
- uchar LCD_DSY_BUFFER2[]={"TIME 00:00:00 "};
- uchar DateTime[7];
- void DelayMS(uint x)
- {
- uchar i;
- while(x--) for(i=0;i<120;i++);
- }
- void Write_A_Byte_TO_DS1302(uchar x)
- {
- uchar i;
- for(i=0;i<8;i++)
- {
- IO = x & 0x01; SCLK =1; SCLK = 0; x >>= 1;
- }
- }
- uchar Get_A_Byte_FROM_DS1302()
- {
- uchar i,b=0x00;
- for(i=0;i<8;i++)
- {
- b |=_crol_((uchar)IO,i);
- SCLK=1;SCLK=0;
- }
- return b / 16 * 10 + b % 16;
- }
- uchar Read_Data(uchar addr)
- {
- uchar dat;
- RST = 0; SCLK = 0;RST = 1;
- Write_A_Byte_TO_DS1302(addr);
- dat = Get_A_Byte_FROM_DS1302();
- SCLK = 1; RST = 0;
- return dat;
- }
- void GetTime()
- {
- uchar i,addr = 0x81;
- for (i = 0; i < 7;i++)
- {
- DateTime[i] = Read_Data(addr); addr += 2;
- }
- }
- uchar Read_LCD_State()
- {
- uchar state;
- RS = 0; RW = 1; EN = 1; DelayMS(1); state = P0; EN = 0; DelayMS(1);
- return state;
- }
- void LCD_Busy_Wait()
- {
- while((Read_LCD_State() & 0x80) == 0x80);
- DelayMS(5);
- }
- void Write_LCD_Data(uchar dat)
- {
- LCD_Busy_Wait();
- RS = 1; RW = 0; EN = 0; P0 = dat; EN = 1; DelayMS(1); EN = 0;
- }
- void Write_LCD_Command(uchar cmd)
- {
- LCD_Busy_Wait();
- RS = 0; RW = 0; EN = 0; P0 = cmd; EN = 1; DelayMS(1); EN = 0;
- }
- void Init_LCD()
- {
- Write_LCD_Command(0x38); DelayMS(1);
- Write_LCD_Command(0x01); DelayMS(1);
- Write_LCD_Command(0x06); DelayMS(1);
- Write_LCD_Command(0x0C); DelayMS(1);
- }
- void Set_LCD_POS(uchar p)
- {
- Write_LCD_Command(p | 0x80);
- }
- void Display_LCD_String(uchar p,uchar *s)
- {
- uchar i;
- Set_LCD_POS(p);
- for (i = 0;i < 16; i++)
- {
- Write_LCD_Data(s[i]);
- DelayMS(1);
- }
- }
- void Format_DateTime(uchar d, uchar *a)
- {
- a[0] = d / 10 + '0'; a[1] = d % 10 + '0';
- }
- void main()
- {
- Init_LCD();
- while(1)
- {
- GetTime();
- Format_DateTime(DateTime[6],LCD_DSY_BUFFER1 + 5);
- Format_DateTime(DateTime[4],LCD_DSY_BUFFER1 + 8);
- Format_DateTime(DateTime[3],LCD_DSY_BUFFER1 + 11);
- strcpy(LCD_DSY_BUFFER1 + 13,WEEK[DateTime[5]]);
- Format_DateTime(DateTime[2],LCD_DSY_BUFFER1 + 5);
- Format_DateTime(DateTime[1],LCD_DSY_BUFFER1 + 8);
- Format_DateTime(DateTime[0],LCD_DSY_BUFFER1 + 11);
- Display_LCD_String(0x00,LCD_DSY_BUFFER1);
- Display_LCD_String(0x40,LCD_DSY_BUFFER2);
- }
- }
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