EEPW论坛

这是我的1602的原理图。下面是我的程序。
unsigned char table[]="I Love MCU!";
unsigned char table1[]="I Love Renesas too!";
void delay(unsigned int x)
{
  unsigned int i,j;
  for(i=x;i>0;i--)
    for(j=320;j>0;j--);
}
void write_com(unsigned char com)
{
   P2=com;
   delay(100);
    P7_bit.no0= 0;
   delay(100);
    P7_bit.no1= 0;
   delay(100);
    P7_bit.no2=1;
   delay(100);
   P7_bit.no2=0;
   delay(100);
}
void write_data(unsigned char data)
{
  P2=data;
  delay(100);
    P7_bit.no0= 0;
   delay(100);
    P7_bit.no1= 0;
   delay(100);
    P7_bit.no2=1;
   delay(100);
   P7_bit.no2=0;
   delay(100);
}
void init()
{
  write_com(0x38);
  write_com(0x0c);
  write_com(0x06);
  write_com(0x01);
  delay(100);
}

void  main(void)
{
 /* Start user code. Do not edit comment generated here */
  init();

  while (1U)
 {
  unsigned char num;
    write_com(0x80+0x10);
   for(num=0;num<11;num++)
   {
       write_data(table[num]);
    delay(100);
    }
   write_com(0x80+0x50);
   for(num=0;num<19;num++)
   {
        write_data(table1[num]);
           delay(100);
   }
   for(num=0;num<16;num++)
   {
        write_com(0x18);
     delay(2000);
   }
 
 
 }
 /* End user code. Do not edit comment generated here */
}

/* Start user code for adding. Do not edit comment generated here */
/* End user code. Do not edit comment generated here */
大家帮我看看为什么液晶老是不显示类？