Question

51单片机12864LCD显示四行文字的流程图，下面由程序

#include<reg51.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
#define LCD_data P0
sbit LCD_RS=P3^5;
sbit LCD_RW=P3^6;
sbit LCD_EN=P3^4;
sbit LCD_PSB=P3^7;
sbit wela=P2^6;
sbit dula=P2^7;
uchar code dis1[]={"天祥电子"};
uchar code dis2[]={"www.txmcu.com"};
uchar code dis3[]={"TX-51STAR 实验箱"};
uchar code dis4[]={"是您最好的选择！"};
#define delayNOP();{_nop_();_nop_();_nop_();_nop_();};
uchar IRDIS[2];
uchar IRCOM[4];
void delay0(uchar x);
void beep();
void dataconv();
void lcd_pos(uchar X,uchar Y);
void delay(int ms)
{
while(ms--)
{
uchar i;
for(i=0;i<250;i++)
{
_nop_();
_nop_();
_nop_();
_nop_();
}
}
}
bit lcd_busy()
{
bit result;
LCD_RS=0;
LCD_RW=1;
LCD_EN=1;
delayNOP();
result=(bit)(P0&0x08);
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=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;
lcd_wcmd(0x34);
delay(5);
lcd_wcmd(0x30);
delay(5);
lcd_wcmd(0x0c);
delay(5);
lcd_wcmd(0x01);
delay(5);
}
main()
{
uchar i;
delay(10);
wela=0;
dula=0;
lcd_init();
lcd_pos(0,0);
i=0;
while(dis1[i]!='\0')
{
lcd_wdat(dis1[i]);
i++;
}
lcd_pos(1,0);
i=0;
while(dis2[i]!='\0')
{
lcd_wdat(dis2[2]);
i++;
}
lcd_pos(2,0);
i=0;
while(dis3[i]!='\0')
{
lcd_wdat(dis3[i]);
i++;
}
lcd_pos(3,0);
i=0;
while(dis4[i]!='\0')
{
lcd_wdat(dis4[i]);
i++;
}
while(1);
}
void delay0(uchar x)
{
uchar i;
while(x--)
{
for(i=0;i<13;i++){}
}
}
void lcd_pos(uchar X,uchar Y)
{
uchar pos;
if(X==0)
{X=0x80;}
else if(X==1)
{X=0x90;}
else if(X==2)
{X=0x88;}
else if(X==3)
{X=0x98;}
pos=X+Y;
lcd_wcmd(pos);
}

Answer 1

推荐使用一些源码分析工具，以后都不用求人。
understand

追问

程序也是找来的，可是根据程序不会画流程图

追答

understand
会帮你画好，你只要会截图就可以了。