MSP430G2553做DS18B20温度控制器

_s_L=5;

}

if(temp_s_flag==1&&temp_s_M==5&&(temp_s_L>5))

{

temp_s_L=5;

}

LCD1602_4bit_CMD(0xc0+0x0c);

LCD1602_4bit_Data(0x30+temp_s_L);

}

while((P1IN&BIT4)==0)

{}

}

}

}

void display(void)

{

temp=(temp_H&0x0f)<4;

if((temp_H&0xf0)==0xf0)

{

LCD1602_4bit_CMD(0x85);

LCD1602_4bit_Data(0x2d);

}

else

{

LCD1602_4bit_CMD(0x85);

LCD1602_4bit_Data(0x20);

}

temp=temp|((temp_L&0xf0)>>4);

LCD1602_4bit_CMD(0x86);

LCD1602_4bit_Data(0x30+temp/100);

LCD1602_4bit_CMD(0x87);

LCD1602_4bit_Data(0x30+(temp%100)/10);

LCD1602_4bit_CMD(0x88);

LCD1602_4bit_Data(0x30+temp%10);

}

void warning(void)

{

if(temp_s_flag==0)

{

if(temp>=(temp_s_L*100+temp_s_M*10+temp_s_L))

{P2OUT|=BIT5;}

else

{P2OUT&=~BIT5;}

}

if(temp_s_flag==1)

{

if(temp<=(temp_s_M*10+temp_s_L))

{P2OUT|=BIT5;}

else

{P2OUT&=~BIT5;}

}

}

void main(void)

{

WDTCTL = WDTPW + WDTHOLD; // Stop WDT

DCOCTL = 0x00; // Set DCO 1MHz

BCSCTL1 = CALBC1_1MHZ;

DCOCTL = CALDCO_1MHZ;

//time0_int();

_EINT();

P2DIR |= 0x0f;

P1DIR |= 0xf0;

delay_ms(20);

io_int();

LCD1602_4bit_init();

for(i1=0; i1<5; i1++)

{

LCD1602_4bit_CMD(0x80+i1);

LCD1602_4bit_Data(table_1[i1]);

}

for(i1=0; i1<4; i1++)

{

LCD1602_4bit_CMD(0xc0+i1);

LCD1602_4bit_Data(table_2[i1]);

}

while(1)

{

// LCD1602_4bit_CMD(0x85);

// LCD1602_4bit_Data(0x30+time_num);

Read_temp();

key_scan();

display();

warning();

/* P2OUT|=BIT5;

delay_ms(2000);

P2OUT&=~BIT5;

delay_ms(2000);

P1OUT&=~BIT6;

delay_ms(1000);*/

}

}

#pragma vector=TIMER0_A0_VECTOR

__interrupt void timeA1(void)

{

time_num++;

if(time_num==20)

{

time_num=0;

}

}