DA显示到12864上.doc

#include #include #define uchar unsigned char#define uint unsigned inttypedef struct typFNT_GB16 / 汉字字模数据结构 signed char Index2; / 汉字内码索引 char Msk32; / 点阵码数据;/*TS12864A-3 端口定义*/#define LCD_data P0 /数据口sbit LCD_RS = P35; /寄存器选择输入 sbit LCD_RW = P36; /液晶读/写控制sbit LCD_EN = P34; /液晶使能控制sbit LCD_PSB = P37; /串/并方式控制sbit cs = P32;sbit wela = P26;sbit dula = P27;uchar t0;uchar code dis = 0123456789;#define delayNOP(); _nop_();_nop_();_nop_();_nop_();/uchar IRDIS2;/uchar IRCOM4;/void lcd_pos(uchar X,uchar Y); /确定显示位置delay_50us(uint t) uchar j; for(;t0;t-) for(j=19;j0;j-);void delay(int ms) while(ms-) uchar i; for(i=0;i250;i+) _nop_(); _nop_();_nop_();_nop_(); bit lcd_busy() bit result; LCD_RS = 0; LCD_RW = 1; LCD_EN = 1; delayNOP(); result = (bit)(P0&0x80); LCD_EN = 0; return(result); void lcd_wcmd(uchar cmd) while(lcd_busy(); LCD_RS = 0; LCD_RW = 0; LCD_EN = 0; _nop_(); _nop_(); P0 = cmd; delayNOP(); LCD_EN = 1; delayNOP(); LCD_EN = 0; void lcd_wdat(uchar dat) while(lcd_busy(); LCD_RS = 1; LCD_RW = 0; LCD_EN = 0; P0 = dat; delayNOP(); LCD_EN = 1; delayNOP(); LCD_EN = 0; void lcd_init() LCD_PSB = 1; /并口方式 lcd_wcmd(0x34); /扩充指令操作 delay(5); lcd_wcmd(0x30); /基本指令操作 delay(5); lcd_wcmd(0x0C); /显示开，关光标 delay(5); lcd_wcmd(0x01); /清除LCD的显示内容 delay(5); /延时void main()uchar v;uchar j,k,m,n; wela=0; dula=0;cs=0;LCD_RW=0;delay_50us(2);LCD_RW=1;cs=1;delay_50us(10);cs=0;LCD_RW=0;delay_50us(1);v=P0;delay_50us(2);LCD_RW=1;cs=1;j=v/100;k=v%100;m=k/10;n=k%10; lcd_init();while(1) uchar i;lcd_wcmd(0x80);for(i=0;i3;i+)if(i=0)lcd_w