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原理圖
#include<reg52.h>
#define aa unsigned char
#define uint unsigned int
aa code table[]="MCU" ;
aa code table1[]="T LOVE MCU";
sbit en=P2^5;
sbit rs=P2^4;
sbit dula=P2^6;
sbit wela=P2^6;
aa num;
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void write_com(aa com)
{
rs=0;
P0=com;
delay(5);
en=1;
delay(5);
en=0;
}
void write_date(aa date)
{
rs=1;
P0=date;
delay(5);
en=1;
delay(5);
en=0;
}
void init()
{
dula=0;
wela=0;
en=0;
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
}
void main()
{
init();
write_com(0x80);
for(num=0;num<11;num++)
{
write_date(table[num]);
delay(5);
}
write_com(0x80+0x40);
for(num=0;num<13;num++)
{
write_date(table1[num]);
delay(5);
}
while(1);
}
程序沒有錯誤 但顯示屏上什么沒有顯示.. 請問錯在哪里了呢？
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