STC15F2K60S2单片机使用ds18b20在1602显示屏显示温度

好的，这是一个关于STC15F2K60S2单片机使用ds18b20在1602显示屏显示温度的问题。下面是一个简单的程序示例，供参考：

#include <reg51.h>
#include <intrins.h>

#define DS18B20_PORT P2
#define DS18B20_DQ P2_0
#define LCD_RS P0_0
#define LCD_RW P0_1
#define LCD_E P0_2
#define LCD_DAT P0

unsigned char code LCD_INIT_TBL[] = {0x38, 0x0c, 0x06, 0x01, 0x80};
unsigned char code DS18B20_SKIP_ROM[] = {0xcc, 0x44};
unsigned char code DS18B20_READ_SCRATCHPAD[] = {0xcc, 0xbe};

void lcd_init();
void lcd_clear();
void lcd_write_cmd(unsigned char cmd);
void lcd_write_data(unsigned char dat);
void lcd_write_str(unsigned char *str);
void delay_ms(unsigned int t);
void ds18b20_reset();
void ds18b20_write_byte(unsigned char dat);
unsigned char ds18b20_read_byte();
int ds18b20_read_temp();

void main()
{
    unsigned int temp;

    lcd_init();
    lcd_write_str("Temperature:");
    while (1)
    {
        temp = ds18b20_read_temp();
        lcd_write_cmd(0x80 + 0x0c);
        lcd_write_data(temp / 10 + '0');
        lcd_write_data(temp % 10 + '0');
        lcd_write_data('C');
        delay_ms(1000);
    }
}

void lcd_init()
{
    unsigned char i;

    LCD_DAT = 0x00;
    LCD_RW = 0;
    LCD_RS = 0;
    LCD_E = 0;
    delay_ms(15);
    for (i = 0; i < sizeof(LCD_INIT_TBL); i++)
    {
        lcd_write_cmd(LCD_INIT_TBL[i]);
    }
}

void lcd_clear()
{
    lcd_write_cmd(0x01);
    delay_ms(2);
}

void lcd_write_cmd(unsigned char cmd)
{
    LCD_DAT = cmd;
    LCD_RW = 0;
    LCD_RS = 0;
    LCD_E = 1;
    _nop_();
    _nop_();
    LCD_E = 0;
    delay_ms(2);
}

void lcd_write_data(unsigned char dat)
{
    LCD_DAT = dat;
    LCD_RW = 0;
    LCD_RS = 1;
    LCD_E = 1;
    _nop_();
    _nop_();
    LCD_E = 0;
    delay_ms(2);
}

void lcd_write_str(unsigned char *str)
{
    while (*str)
    {
        lcd_write_data(*str++);
    }
}

void delay_ms(unsigned int t)
{
    unsigned int i, j;

    for (i = 0; i < t; i++)
    {
        for (j = 0; j < 110; j++);
    }
}

void ds18b20_reset()
{
    DS18B20_DQ = 1;
    _nop_();
    DS18B20_DQ = 0;
    delay_ms(20);
    DS18B20_DQ = 1;
    delay_ms(20);
}

void ds18b20_write_byte(unsigned char dat)
{
    unsigned char i;

    for (i = 0; i < 8; i++)
    {
        DS18B20_DQ = 0;
        _nop_();
        DS18B20_DQ = dat & 0x01;
        delay_ms(2);
        DS18B20_DQ = 1;
        dat >>= 1;
    }
}

unsigned char ds18b20_read_byte()
{
    unsigned char i, dat = 0;

    for (i = 0; i < 8; i++)
    {
        DS18B20_DQ = 0;
        _nop_();
        DS18B20_DQ = 1;
        _nop_();
        dat |= DS18B20_DQ << i;
        delay_ms(2);
    }
    return dat;
}

int ds18b20_read_temp()
{
    unsigned char high, low;
    int temp;

    ds18b20_reset();
    ds18b20_write_byte(DS18B20_SKIP_ROM[0]);
    ds18b20_write_byte(DS18B20_SKIP_ROM[1]);
    ds18b20_write_byte(DS18B20_READ_SCRATCHPAD[0]);
    ds18b20_write_byte(DS18B20_READ_SCRATCHPAD[1]);
    low = ds18b20_read_byte();
    high = ds18b20_read_byte();
    temp = high;
    temp <<= 8;
    temp |= low;
    temp *= 625;
    temp /= 100;
    return temp;
}

这个程序使用的是STC15F2K60S2单片机，通过DS18B20温度传感器读取温度值，并在1602液晶显示屏上显示出来。程序中涉及到了LCD1602显示屏和DS18B20温度传感器的读写操作，需要根据具体的硬件连接进行修改。