单片机LCD1602C语言程序.doc

#include unsigned char code tab116= Now time is: ;unsigned char tab216= 00:00:00 ;unsigned char second = 0,minite=0,hour=0;/*设置管脚*/sbit RS = P10; /sbit RS = P35 ; sbit RW = P11; sbit E = P12;sbit Beep = P34;/*LCD1602控制指令*/ / #define a b = a=b#define LCD_Set 0x38 / 0011 1000 显示初始化，16*2显示，5*7点阵，8位数据接口 ;#define LCD_Clear 0x01 / 0000 0001 清屏LCD ;#define LCD_Display1 0x0f / 0000 1111 显示功能设置:开显示，显示光标，光标闪烁 ;#define LCD_Display2 0x0c / 0000 1100 显示功能设置:开显示，不显示光标，光标不闪烁 ;#define LCD_Mode 0x06 / 0000 0110 设置光标状态默认0x06,为读一个字符光标加1 ;#define LCD_1_Left 0x80 /设置初始化数据指针,指向 左半屏第一行首位 ; #define LCD_2_Left (0x80+0x40) /设置初始化数据指针,指向 左半屏第二行首位 ;/*液晶1602 毫秒延时*/void delay_ms(unsigned int ms) unsigned int i,j; for(i=0;ims;i+)for(j=0;j1141;j+); /*液晶1602 写控制指令函数*/void Write_Command(unsigned char Command) RS = 0 ; / 进行指令的操作 RW = 0 ; / 进行写操作 P2 = Command ; / 赋值指令 E = 1 ; / 使能端拉高 delay_ms(1); / 等待指令写完 E = 0 ; / 使能端拉低/*液晶1602 写数据函数*/void Write_Data(unsigned char Data) RS = 1 ; / 进行数据的操作 RW = 0 ; / 进行写操作 P2 = Data ; / 赋值数据 E = 1 ; / 使能端拉高 delay_ms(1); / 等待数据写完 E = 0 ; / 使能端拉低/*液晶1602 使用初始化*/void LCD1602_Init(void) Write_Command(LCD_Set); / 显示初始化，16*2显示，5*7点阵，8位数据接口 ; Write_Command(LCD_Clear); / 清屏LCD ; Write_Command(LCD_Display2); / 显示功能设置:开显示，不显示光标，光标不闪烁 ; Write_Command(LCD_Mode); / 设置光标状态默认0x06,为读一个字符光标加1 ;void LCD1602Printfc(unsigned char line,unsigned char address,unsigned char Data)if(line) Write_Command(0xc0+address); Write_Data(Data);else Write_Command(0x80+address); Write_Data(Data);/*液晶1602 显示*/void LCD1602_Display(unsigned char *table1 , unsigned char *table2) unsigned char i; Write_Command( LCD_1_Left ); /第一行显示16个字符delay_ms(1); for(i=0;i16;i+) Write_Data(table1i); delay_ms(20); Write_Command( LCD_2_Left ); /第二行显示16个字符delay_ms(1); for(i=0;i16;i+) Write_Data(table2i); delay_ms(20); void time_view(void) if(second = 60)minite +;second=0;if(minite = 60)hour+;minite = 0;if(hour = 24)hour=0;LCD1602Printfc(1,0,hour/10+0);LCD1602Printfc(1,1,hour%10+0);LCD1602Printfc(1,2,:);LCD1602Printfc(1,3,minite/10+0);LCD1602Printfc(1,4,minite%10+0);LCD1602Printfc(1,5,:);LCD1602Printfc(1,6,second/10+0);LCD1602Printfc(1,7,second%10+0);void Time0Init(void)TMOD = 0x01;TH0 = 0x3c;TL0 = 0xb0;ET0 = 1;TR0 = 1;EA = 1;/*主函数*/void main(void)LCD1602_Init(); /调用1602初始化程序Time0Init();while(1)time_view();/LCD1602_Display(tab1,tab2); /调用显示程序void time0(void)interrupt 2static unsigned char time = 0;TH0 = 0x3c;TL0 = 0xb0;time +;if(time = 20)time = 0;second +;