基于msp430g2553液晶12864并行显示详解

#ifndef __LCD12864_H__
#define __LCD12864_H__
#include "msp430g2553.h"
#include "delay.h"
#define lcddata P2OUT
#define rs_out P1DIR|=BIT0
#define rw_out P1DIR|=BIT1
#define en_out P1DIR|=BIT2
#define rs_h P1OUT|=BIT0
#define rs_l P1OUT&=~BIT0
#define rw_h P1OUT|=BIT1
#define rw_l P1OUT&=~BIT1
#define en_h P1OUT|=BIT2
#define en_l P1OUT&=~BIT2
void write_dat(uchar dat)
{
rs_out;
        rw_out;
        en_out;
        
        delay(10);
rs_h;
rw_l;
en_h;
lcddata=dat;
en_l;
}
void write_comm(uchar comm)
{
rs_out;
        rw_out;
        en_out;
rs_l;
rw_l;
en_h;
lcddata=comm;
en_l;
}
void init()
{
rs_out;
        rw_out;
        
        rs_l;
rw_l;
write_comm(0x30); //基本指令动作
delay(2);
write_comm(0x0c);//开显示及光标
delay(2);
}
void display_12864(uchar hang,uchar lie,uchar *p)
{
uchar i;
switch(hang)
{
            case 1: write_comm(0x80+lie);break;
            case 2: write_comm(0x90+lie);break;
            case 3: write_comm(0x88+lie);break;
            case 4: write_comm(0x98+lie);break;
}
for(i=0;i<16;i++)
{
     write_dat(p[i]);
}
        
}
#endif