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//液晶1602(帶字庫)顯示測試程序// #include<reg51.h> #define uint unsigned int #define uchar unsigned char //宏定義 uchar code table[]=" LU LIE QI "; uchar code table1[]="WWW.LAOWANG.COM"; sbit LCD_RS=P2^6; //位定義 sbit LCD_RW=P2^5; sbit LCD_EN=P2^7; uchar num; //定義全局變量 //延時程序===1ms// void delay_1ms(uint mas) { uint i,j; for(i=0;i<mas;i++) for(j=0;j<110;j++); } void write_com(uchar com) // 寫命令 { LCD_RS=0; LCD_RW=0; P0=com; delay_1ms(5); LCD_EN=1; delay_1ms(5); LCD_EN=0; } void write_data(uchar dadt) //寫數據 { LCD_RS=1; P0=dadt; delay_1ms(5); LCD_EN=1; delay_1ms(5); LCD_EN=0; } void init() //初始化函數 { LCD_EN=0; write_com(0x38); //顯示模式設置16X2,5X7點陣,8位數據口 write_com(0x0f); //開顯示、開關標、關標閃爍 write_com(0x06); //關標加一 write_com(0x01); //清屏 write_com(0x80+0x10); //數據指針位置 } //=====主函數======// void main() { init(); for(num=0;num<10;num++) { write_data(table[num]); delay_1ms(20); } write_com(0x80+0x50); for(num=0;num<15;num++) { write_data(table1[num]); delay_1ms(20); } for(num=0;num<16;num++) { write_com(0x18); delay_1ms(500); } while(1); } |
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