基于msp430g2553液晶lcd1602显示程序

2万 · 2020-11-5 11:05

#ifndef __LCD1602_H__
#define __LCD1602_H__
#include "msp430g2553.h"
#include "delay.h"
#define  lcden_out  P1DIR|=BIT2
#define  lcden_in  P1DIR&=~BIT2
#define  lcden_h  P1OUT|=BIT2
#define  lcden_l  P1OUT&=~BIT2
#define  rw_out  P1DIR|=BIT1
#define  rw_in  P1DIR&=~BIT1
#define  rw_h  P1OUT|=BIT1
#define  rw_l  P1OUT&=~BIT1
#define  rs_out  P1DIR|=BIT0
#define  rs_in  P1DIR&=~BIT0
#define  rs_h  P1OUT|=BIT0
#define  rs_l  P1OUT&=~BIT0
#define data P2OUT
void write_com(uchar com)
{
      lcden_out;
      rs_out;
      rw_out;
      P2DIR=0XFF;

      rs_l;
      rw_l;
  lcden_l;
      data=com;
  delay(1);
  lcden_h;
  delay(1);
  lcden_l;
}
void write_date(uchar date)
{
      lcden_out;
      rs_out;
      P2DIR=0XFF;

      rs_h;
      rw_l;
  lcden_l;
      data=date;
  delay(1);
  lcden_h;
  delay(1);
  lcden_l;
}
void display_string(uchar *p,uchar com)
{
uchar i;
write_com(com);
for(i=0;i<16;i++)
{
  write_date(p);
}
}
void init_lcd()
{
lcden_out;
lcden_l;
  write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
display_string(" welcome    ",0x80);
display_string("san xia xue yuan",0xc0);
}
#endif