這是程序代碼，求指點
void Lcd1602_Delay1ms(uint c) //?? 0us
{
uchar a,b;
for (; c>0; c--)
{
for (b=199;b>0;b--)
{
for(a=1;a>0;a--);
}
}
}
#ifndef LCD1602_4PINS //???????LCD1602_4PINS?
void LCD_WriteCmd(uchar com) //????
{
LCD1602_E = 0; //??
LCD1602_RS = 0; //??????
LCD1602_RW = 0; //????
LCD1602_DATAPINS = com; //????
Lcd1602_Delay1ms(1); //??????
LCD1602_E = 1; //????
Lcd1602_Delay1ms(5); //????
LCD1602_E = 0;
}
#else
void LCD_WriteCmd(uchar com) //????
{
LCD1602_E = 0; //????
LCD1602_RS = 0; //??????
LCD1602_RW = 0; //????
LCD1602_DATAPINS = com; //??4???????P0?????,??????????
Lcd1602_Delay1ms(2);
LCD1602_E = 1; //????
Lcd1602_Delay1ms(5);
LCD1602_E = 0;
// Lcd1602_Delay1ms(1);
LCD1602_DATAPINS = com << 4; //?????
Lcd1602_Delay1ms(1);
LCD1602_E = 1; //????
Lcd1602_Delay1ms(5);
LCD1602_E = 0;
}
#endif
/*******************************************************************************
* ? ? ? : LcdWriteData
* ???? : ?LCD?????????
* ? ? : dat
* ? ? : ?
*******************************************************************************/
#ifndef LCD1602_4PINS
void LCD_WriteData(uchar dat) //????
{
LCD1602_E = 0; //????
LCD1602_RS = 1; //??????
LCD1602_RW = 0; //????
LCD1602_DATAPINS = dat; //????
Lcd1602_Delay1ms(1);
LCD1602_E = 1; //????
Lcd1602_Delay1ms(5); //????
LCD1602_E = 0;
}
#else
void LCD_WriteData(uchar dat) //????
{
LCD1602_E = 0; //????
LCD1602_RS = 1; //??????
LCD1602_RW = 0; //????
LCD1602_DATAPINS = dat; //??4???????P0?????,??????????
Lcd1602_Delay1ms(1);
LCD1602_E = 1; //????
Lcd1602_Delay1ms(5);
LCD1602_E = 0;
LCD1602_DATAPINS = dat << 4; //?????
Lcd1602_Delay1ms(1);
LCD1602_E = 1; //????
Lcd1602_Delay1ms(5);
LCD1602_E = 0;
}
#endif
/*******************************************************************************
* ? ? ? : LcdInit()
* ???? : ???LCD?
* ? ? : ?
* ? ? : ?
*******************************************************************************/
#ifndef LCD1602_4PINS
void LcdInit() //LCD??????
{
LCD_WriteCmd(0x38); //???
LCD_WriteCmd(0x0c); //????????
LCD_WriteCmd(0x06); //??????1
LCD_WriteCmd(0x01); //??
LCD_WriteCmd(0x80); //????????
}
#else
void LCD_Init() //LCD??????
{
LCD_WriteCmd(0x32); //?8?????4???
LCD_WriteCmd(0x28); //?????????
LCD_WriteCmd(0x0c); //????????
LCD_WriteCmd(0x06); //??????1
LCD_WriteCmd(0x01); //??
LCD_WriteCmd(0x80); //????????
}
#endif
void LCD_Clear()
{
LCD_WriteCmd(0x01);
LCD_WriteCmd(0x80);
}
//??????????
void LCD_Dispstring(u8 x,u8 line,u8 *p)
{
char i=0;
if(line<1) //?????
{
while(*p!='\0')
{
if(i<16-x)
{
LCD_WriteCmd(0x80+i+x);
}
else
{
LCD_WriteCmd(0x40+0x80+i+x-16);
}
LCD_WriteData(*p);
p++;
i++;
}
}
else //?2???
{
while(*p!='\0')
{
if(i<16-x)
{
LCD_WriteCmd(0x80+0x40+i+x);
}
else
{
LCD_WriteCmd(0x80+i+x-16);
}
LCD_WriteData(*p);
p++;
i++;
}
}
}
??????:
#include "public.h"
#include "lcd.h"
#include "temp.h"
#include "i2c.h"
sbit k3=P3^1; //???????
sbit k1=P3^0; //?
sbit k2=P3^2; //?
sbit led=P2^0; //?????
sbit beep=P1^5; //?????
sbit relay=P1^4; //????
sbit moto=P1^0; //????
char set_templ=25,set_temph=32; //??????????
u16 temp_val; //???????
u8 mode; //????
void Temp_DataPros()
{
short temp;
u8 temp_buf[5];
temp=Ds18b20ReadTemp();
temp_val=temp;
if(temp<0)
{
temp=-temp;
LCD_Dispstring(2+5,0,"-");
}
else
{
LCD_Dispstring(2+5,0," ");
}
temp_buf[0]=temp/100+0x30;
temp_buf[1]=temp%100/10+0x30;
temp_buf[2]='.';
temp_buf[3]=temp%100%10+0x30;
temp_buf[4]='\0';
LCD_Dispstring(2+6,0,temp_buf); //???????xx.x
temp_buf[0]=set_temph/10+0x30;
temp_buf[1]=set_temph%10+0x30;
temp_buf[2]='\0';
LCD_Dispstring(5,1,temp_buf); //??????????xx
temp_buf[0]=set_templ/10+0x30;
temp_buf[1]=set_templ%10+0x30;
temp_buf[2]='\0';
LCD_Dispstring(14,1,temp_buf); //??????????xx
}
#define K1_MODE 1
#define K2_ADD 2
#define K3_DEC 3
//mode: 0-???? 1-????
u8 KEY_Scan(u8 mode)
{
static u8 key=1;
if(key&&(k1==0||k2==0||k3==0))
{
delay(300); //??
key=0;
if(k3==0)
{
return K1_MODE;
}
else if(k1==0)
{
return K2_ADD;
}
else if(k2==0)
{
return K3_DEC;
}
}
else if(k1==1&&k2==1&&k3==1)
{
key=1;
}
if(mode)
{
key=1;
}
return 0;
}
void KEY_Pros()
{
u8 key;
u8 temph_buf[3];
key=KEY_Scan(0);
if(key==K1_MODE) //????
{
mode++;
LCD_Clear();
if(mode==1)
{
LCD_Dispstring(0,0,"SETH: C");
}
else if(mode==2)
{
LCD_Dispstring(0,1,"SETL: C");
}
else
{
mode=0;
LCD_Dispstring(2,0,"Temp: C");
LCD_Dispstring(0,1,"SETH: ");
LCD_Dispstring(9,1,"SETL: ");
}
}
if(mode==1) //??????
{
switch(key)
{
case K2_ADD: //?
set_temph++;
if(set_temph>=80)set_temph=80;
break;
case K3_DEC: //?
set_temph--;
if(set_temph<=0)set_temph=0;
break;
}
temph_buf[0]=set_temph/10+0x30;
temph_buf[1]=set_temph%10+0x30;
temph_buf[2]='\0';
LCD_Dispstring(6,0,temph_buf);
At24c02Write(0,set_temph);
}
else if(mode==2) //??????
{
switch(key)
{
case K2_ADD: //?
set_templ++;
if(set_templ>=80)set_templ=80;
break;
case K3_DEC: //?
set_templ--;
if(set_templ<=0)set_templ=0;
break;
}
temph_buf[0]=set_templ/10+0x30;
temph_buf[1]=set_templ%10+0x30;
temph_buf[2]='\0';
LCD_Dispstring(6,1,temph_buf);
At24c02Write(2,set_templ);
}
}
void sound()
{
u8 i=50;
while(i--)
{
beep=!beep;
delay(10);
}
}
void TempData_Compare()
{
if(temp_val>set_temph*10) //????????? ?? ??
{
led=0;
moto=1;
relay=1;
sound();
}
else if(temp_val<set_templ*10) //????????? ?? ??
{
led=1;
moto=0;
relay=0;
sound();
}
else //?????????????? ???? ???? ????
{
moto=0;
led=1;
relay=1;
}
}
void kai_display()
{
if(At24c02Read(255)!=18)
{
At24c02Write(0,set_temph);
At24c02Write(2,set_templ);
At24c02Write(255,18);
}
else
{
set_temph=At24c02Read(0);
set_templ=At24c02Read(2);
}
LCD_Dispstring(2,0,"Temp: C");
LCD_Dispstring(0,1,"SETH: ");
LCD_Dispstring(9,1,"SETL: ");
}
void main()
{
moto=0;
led=1;
relay=1;
LCD_Init();
kai_display();
while(1)
{
if(mode==0)
Temp_DataPros();
KEY_Pros();
TempData_Compare();
}
} |
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