MSP430单片机驱动12864液晶程序

1、 MSP430单片机驱动12864液晶程序#include <msp430g2553.h>typedef unsigned char uchar;typedef unsigned int uint;#define LCD_PORT_DIR P2DIR /定义P2口#define LCD_PORT_OUT P2OUT#define CS BIT0#define SID BIT1#define SCLK BIT2#define LCD_OUT LCD_PORT_DIR |= CS + SID + SCLK /定义P2.02.2为输出#define CS_H LCD_PORT_OUT |

2、= CS#define CS_L LCD_PORT_OUT &= CS#define SID_H LCD_PORT_OUT |= SID#define SID_L LCD_PORT_OUT &= SID#define SCLK_H LCD_PORT_OUT |= SCLK#define SCLK_L LCD_PORT_OUT &= SCLKvoid Delay_1ms(void);void Delay_Nms(uint n);void Write_1byte(uint RW,uint RS,uchar data);void Write_8bits(uchar bit);

3、void Write_Cmd(uchar cmd);void Write_Dat(uchar dat);void Write_Datas(uchar *s);void Disp_Img(uchar *img);void Lcd_Init(void);void Locat_XY(uint x,uint y);void Write_Str(uint x,uint y,uchar *s);void Write_Str1(uint x,uint y, uchar q);/unsigned int SZ_bl=48,49,50,51,52,53,54,55,56,57;/*函数名称:Delay_1ms功

4、 能:延时约1ms的时间参 数:无返回值:无*/void Delay_1ms(void) uchar i; for(i = 150;i > 0;i-);/*函数名称:Delay_Nms功 能:延时约N个1ms的时间参 数:n-延时长度返回值:无*/void Delay_Nms(uint n) uint i; for(i = n;i > 0;i-) Delay_1ms();/*函数名称:Write_1byte功 能:向LCD写1byte数据参 数:RW-读写控制，RS-数据命令控制 data-数据 RW：0为写，1为读 RS：0为命令，1为数据返回值:无*/void Write_1b

5、yte(uint RW,uint RS,uchar data) uchar H_data,L_data,ID = 0xf8; if(RW = 1) ID = ID + 0x04; if(RS = 1) ID = ID + 0x02; H_data = data; H_data &= 0xf0; L_data = data; L_data &= 0x0f; L_data <<= 4; Write_8bits(ID); Delay_1ms(); Write_8bits(H_data); Delay_1ms(); Write_8bits(L_data); Delay_1m

6、s();/*函数名称:Write_8bits功 能:向LCD连续写8bits数据参 数:bit-数据返回值:无*/void Write_8bits(uchar bit) uint i; for(i=0;i<8;i+) if(bit & 0x80) SID_H; else SID_L; SCLK_H; bit <<= 1; SCLK_L; /*函数名称:Write_Cmd功 能:向LCD写控制命令参 数:cmd-控制命令返回值:无*/void Write_Cmd(uchar cmd) CS_L; _NOP(); CS_H; _NOP(); Write_1byte(0,0

7、,cmd); Delay_1ms(); CS_L;/*函数名称:Write_Dat功 能:向LCD写显示数据参 数:dat-显示数据返回值:无*/void Write_Dat(uchar dat) CS_L; _NOP(); CS_H; _NOP(); Write_1byte(0,1,dat); Delay_1ms(); CS_L; _NOP();/*函数名称:Lcd_Init功 能:液晶初始化参 数:无返回值:无*/void Lcd_Init(void) Delay_Nms(500); Write_Cmd(0x30); /基本指令集 Delay_1ms(); Write_Cmd(0x02);

8、 /地址归位 Delay_1ms(); Write_Cmd(0x0c); /整体显示打开，游标关闭 Delay_1ms(); Write_Cmd(0x01); /清除显示 Delay_1ms(); Write_Cmd(0x06); /游标右移 Delay_1ms(); Delay_1ms();/*函数名称:Locat_XY功 能:设置液晶显示地址参 数:x-行地址，y-列地址 0<=x<=3,0<=y<=7返回值:无*/void Locat_XY(uint x,uint y) switch(y) case 0: Write_Cmd(0x80+x);break; case

9、 1: Write_Cmd(0x90+x);break; case 2: Write_Cmd(0x88+x);break; case 3: Write_Cmd(0x98+x);break; default:break; /*函数名称:Write_Datas功 能:写字符串数据参 数:*s-字符串数组返回值:无*/void Write_Datas(uchar *s) char i; while(*s>0) Write_Dat(*s); s+; for(i=10;i>0;i-); /*函数名称:Write_Str功 能:向指定起始坐标写字符串参 数:x-行地址，y-列地址，*s-字符串

10、数组 0<=x<=3,0<=y<=7返回值:无*/void Write_Str(uint x,uint y, uchar *s) Locat_XY(x,y); Write_Datas(s);/*函数名称:Write_Str1功 能:向指定起始坐标写变量参 数:x-行地址，y-列地址，q-字符串数组ASCll码值 0<=x<=3,0<=y<=7返回值:无*/void Write_Str1(uint x,uint y, uchar q) Locat_XY(x,y); Write_Dat(q);/*函数名称:Disp-Img功 能:显示图片参 数:*img-图片数组返回值:无*/void Disp_Img(uchar *img) uint j=0; uchar x,y; for(y=0;y<32;y+) /垂直坐标32位 for(x=0;x<8;x+) /水平坐标16字 Write_Cmd(0x36); /开启扩展指令集 Write_Cmd(y+0x80); /先写入垂直坐标 Write_Cmd(x+0x80); /再写入水平坐标 Write_Cmd(0x30); /基本指令集 Write_Dat(imgj+); Write_Dat(imgj+); for(y=0;y<32;y+) /垂直坐标32