/****************************************************************************** ** 描述: ** 12864标准字库液晶演示数据p0,控制p2 ******************************************************************************** */#include <reg51.h>#include <math.h>#include <intrins.h>#define uchar unsigned char#define uint unsigned int/************* 12864LCD引脚定义*************/#define LCD_data P0 //数据口sbit LCD_RS = P2^6; //寄存器选择输入sbit LCD_RW = P2^5; //液晶读/写控制sbit LCD_EN = P2^7; //液晶使能控制sbit LCD_PSB = P3^2; //串/并方式控制sbit LCD_RST = P3^7; //液晶复位端口#define delayNOP(); {_nop_();_nop_();_nop_();_nop_();};/*********************************************************/uchar code DIS1[] = {"Vpp:"};uchar code DIS2[] = {"F:"};uchar DIS3[] = {"5V"};uchar DIS4[] = {"12Hz"};uchar D1[]={"0123456789"};/*********************************************************///正弦波代码uchar code tab[]={126,100,80,70,65,62,65,70,80,100,126,152,172,182,187,190,187,182,172,152};//背景图片uchar code 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//*******************************************************************//* *//* 延时函数*//* *//*******************************************************************/void delay(int ms){while(ms--){uchar i;for(i=0;i<150;i++){_nop_();_nop_();_nop_();_nop_();}}}/*******************************************************************//* *//* 延时函数*//* *//*******************************************************************/void delay1(int ms){while(ms--){uchar y;for(y=0;y<100;y++) ;}}/*******************************************************************//* *//*检查LCD忙状态*/ /*lcd_busy为1时，忙，等待。