jhd.txt

JHD的测试驱动程序！是个好东西！要的同志赶紧来下载啊！

#include <reg51.h>

#include <intrins.h>

sbit dc=0xa0;       /*P2.0  LCD的RS  21*/

sbit rw=0xa1;       /*P2.1  LCD的R/W 22*/

sbit cs=0xa4;       /*P2.4  LCD的E   25*/

sfr  lcdbus=0x80;   /*p0    LCD数据 D0=P0.0*/

unsigned int sys10mscounter;

unsigned char syslimitcounter;

char path1[8]={0x00,0x1f,0x00,0x1f,0x00,0x1f,0x00,0x1f};/*自定义符号：横1*/

char path2[8]={0x1f,0x00,0x1f,0x00,0x1f,0x00,0x1f,0x00};/*自定义符号：横2*/

char pats1[8]={0x15,0x15,0x15,0x15,0x15,0x15,0x15,0x15};/*自定义符号：竖1*/

char pats2[8]={0x0a,0x0a,0x0a,0x0a,0x0a,0x0a,0x0a,0x0a};/*自定义符号：竖2*/

void soft_nop(){}

void soft_10ms()/***********12MHZ提供10MS软件延时************/

{   register int i;

    for(i=0;i<711;i++);

}

void soft_20ms()/***********12MHZ提供20MS软件延时************/

{   soft_10ms();

    soft_10ms();

}

void hard_10ms(unsigned int delaytime) /*基于10MS的硬件延时*/

{   sys10mscounter=delaytime;

    while(sys10mscounter);

}

unsigned char data lcdcounter;

bit lcdusing1,lcdusing2;

bit lcd_checkbusy()/*检查LCD忙*/

{   register lcdstate;

    dc=0;               /*dc=1为数据,=0为命令.*/

    rw=1;               /*rw=1为读,=0为写.*/

    cs=1;               /*cs=1选通.*/

    soft_nop();

    lcdstate=lcdbus;

    cs=0;

    return((bit)(lcdstate&0x80));

}

void lcd_wrcmd(unsigned char lcdcmd) /*写LCD命令*/

{   lcdusing1=1;

    while(lcd_checkbusy());

    lcdbus=lcdcmd;

    dc=0;               /*dc=1为数据,=0为命令.*/

    rw=0;               /*rw=1为读,=0为写.*/

    cs=1;               /*cs=1选通.*/

    soft_nop();

    cs=0;

    lcdbus=0xff;

    lcdusing1=0;

}

void lcd_moveto(char position) /*移动光标到指定位.0-79*/

{   register cmd=0x80;

    lcdcounter=position;

        if (position > 59)

            position += 0x18;

        else

        {   if (position > 39)position -= 0x14;

            else

            {       if (position > 19)position += 0x2c; 

            }       

        }   

    cmd=cmd|position;

    lcd_wrcmd(cmd);

}

void lcd_wrdata(char lcddata) /*在当前显示位置显示数据*/

{   char i;

    lcdusing2=1;

    while(lcd_checkbusy()); 

    if(lcdcounter==20){

        lcd_moveto(20);

        while(lcd_checkbusy()); 

        }

    if(lcdcounter==40){

        lcd_moveto(40);

        while(lcd_checkbusy()); 

        }

    if(lcdcounter==60){

        lcd_moveto(60);

        while(lcd_checkbusy()); 

        }

    if(lcdcounter==80){

        lcd_moveto(0);

        while(lcd_checkbusy()); 

        lcdcounter=0;

        }                   /*为通用而如此*/

    lcdcounter++;

    lcdbus=lcddata;

    dc=1;               /*dc=1为数据,=0为命令.*/

    rw=0;               /*rw=1为读,=0为写.*/

    cs=1;               /*cs=1选通.*/

    soft_nop();

    cs=0;

    lcdbus=0xff;

    lcdusing2=0;

}

void lcd_string(char *strpoint) /*在当前显示位置显示LCD字符串*/

{   register i=0;

    while(strpoint[i]!=0){

        lcd_wrdata(strpoint[i]);

        i++;

        }

}

void lcd_init()/*初始化*/

{   lcd_wrcmd(0x38);        /*设置8位格式,2行,5*7*/

    lcd_wrcmd(0x0c);        /*整体显示,关光标,不闪烁*/

    lcd_wrcmd(0x06);        /*设定输入方式,增量不移位*/

    lcd_wrcmd(0x01);        /*清除显示*/

    lcdcounter=0;

}

void lcd_cls()/*清除显示*/

{   lcd_wrcmd(0x01);

    lcdcounter=0;

}

void timer0(void) interrupt 1       /*T0中断*/

{   TH0=0xd8;           /*12M,10ms*/

    TL0=0xf6;

    TR0=1;

    if(sys10mscounter!=0)sys10mscounter--;      /*定时器10ms*/

    if(syslimitcounter!=0)syslimitcounter--;    /*定时器10ms*/

}

main()

{

unsigned char j;

IE=0;P0=0xff;P1=0xff;P2=0xff;P3=0xff; /*初始化T*/

lcd_init();soft_20ms();

TMOD=0x51;

TH0=0xd8;           /*12M,10ms*/

TL0=0xf6;

TR0=1;ET0=1;EA=1;

    while(1)

    {

    /*全黑、横一、横二、竖一、竖二、U、Q、ABCD...，*/

    lcd_init(); /*全黑*/

    for(j=0;j<80;j++){lcd_wrdata(0xff);}

    hard_10ms(50);

    lcd_init(); /*横一，可参考自行设计符号*/

    lcd_wrcmd(0x40);

    for(j=0;j<8;j++)lcd_wrdata(path1[j]);

    for(j=0;j<100;j++)lcd_wrdata(0);

    hard_10ms(50);

    lcd_init(); /*横二*/

    lcd_wrcmd(0x40);

    for(j=0;j<8;j++)lcd_wrdata(path2[j]);

    for(j=0;j<100;j++)lcd_wrdata(0);

    hard_10ms(50);

    lcd_init(); /*竖一*/

    lcd_wrcmd(0x40);

    for(j=0;j<8;j++)lcd_wrdata(pats1[j]);

    for(j=0;j<100;j++)lcd_wrdata(0);

    hard_10ms(50);

    lcd_init(); /*竖二*/

    lcd_wrcmd(0x40);

    for(j=0;j<8;j++)lcd_wrdata(pats2[j]);

    for(j=0;j<100;j++)lcd_wrdata(0);

    hard_10ms(50);

    lcd_init();

    lcd_string("UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU");

    hard_10ms(50);

    lcd_init();

    lcd_string("QQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQQ");

    hard_10ms(50);

    lcd_init();

    lcd_string("ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz0123456789+-!#$%&?");

    hard_10ms(50);

    }

}