51單片機(jī)之lcd1602步進(jìn)電機(jī)控制

#include //內(nèi)部包含延時函數(shù) _nop_();

#define uchar unsigned char

#define uint unsigned int

#define delayNOP(); {_nop_();_nop_();_nop_();_nop_();};

char code SST516[3] _at_ 0x003b;

uchar code FFW[8]={0xf1,0xf3,0xf2,0xf6,0xf4,0xfc,0xf8,0xf9};

uchar code REV[8]={0xf9,0xf8,0xfc,0xf4,0xf6,0xf2,0xf3,0xf1};

sbit K1 = P1^4; //運行與停止

sbit K2 = P1^5; //設(shè)定圈數(shù)

sbit K3 = P1^6; //方向轉(zhuǎn)換

sbit K4 = P1^7; //速率調(diào)整

sbit BEEP = P3^7; //蜂鳴器

sbit LCD_RS = P2^0;

sbit LCD_RW = P2^1;

sbit LCD_EN = P2^2;

bit on_off=0; //運行與停止標(biāo)志

bit direction=1; //方向標(biāo)志

bit rate_dr=1; //速率標(biāo)志

bit snum_dr=1; //圈數(shù)標(biāo)志

uchar code cdis1[ ] = {" STEPPING MOTOR "};

uchar code cdis2[ ] = {"CONTROL PROCESS"};

uchar code cdis3[ ] = {" STOP "};

uchar code cdis4[ ] = {"NUM: RATE: "};

uchar code cdis5[ ] = {" RUNNING "};

uchar m,v=0,q=0;

uchar number=0,number1=0;

uchar snum=5,snum1=5; //預(yù)設(shè)定圈數(shù)

uchar rate=8; //預(yù)設(shè)定速率

uchar data_temp,data_temp1,data_temp2;

void delay(uint t)

{

uchar k;

while(t--)

{

for(k=0; k<125; k++)

{ }

}

}

void delayB(uchar x) //x*0.14MS

{

uchar i;

while(x--)

{

for (i=0; i<13; i++)

{ }

}

}

void beep()

{

uchar j;

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

{

delayB(4);

BEEP=!BEEP; //BEEP取反

}

BEEP=1; //關(guān)閉蜂鳴器

delay(170);

}

bit lcd_busy()

{

bit result;

LCD_RS = 0;

LCD_RW = 1;

LCD_EN = 1;

delayNOP();

result = (bit)(P0&0x80);

LCD_EN = 0;

return(result);

}

void lcd_wcmd(uchar cmd)

{

while(lcd_busy());

LCD_RS = 0;

LCD_RW = 0;

LCD_EN = 0;

_nop_();

_nop_();

P0 = cmd;

delayNOP();

LCD_EN = 1;

delayNOP();

LCD_EN = 0;

}

void lcd_wdat(uchar dat)

{

while(lcd_busy());

LCD_RS = 1;

LCD_RW = 0;

LCD_EN = 0;

P0 = dat;

delayNOP();

LCD_EN = 1;

delayNOP();

LCD_EN = 0;

}

void lcd_init()

{

delay(30);

lcd_wcmd(0x38); //16*2顯示，5*7點陣，8位數(shù)據(jù)

delay(5);

lcd_wcmd(0x38);

delay(5);

lcd_wcmd(0x38);

delay(5);

lcd_wcmd(0x0c); //顯示開，關(guān)光標(biāo)

delay(5);

lcd_wcmd(0x06); //移動光標(biāo)

delay(5);

lcd_wcmd(0x01); //清除LCD的顯示內(nèi)容

delay(5);

}

void lcd_pos(uchar pos)

{

lcd_wcmd(pos | 0x80); //數(shù)據(jù)指針=80+地址變量

}

void LCD_init_DIS()

{

delay(10); //延時

lcd_init(); //初始化LCD

lcd_pos(0); //設(shè)置顯示位置為第一行的第1個字符

m = 0;

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