基于msp430g2553液晶lcd1602显示程序
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#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
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