EM78P468 NTC lcd测温设计C语言源代码_义隆单片机

EM78P468 NTC lcd测温设计C语言源代码

点击数：7709 次录入时间：03-04 12:00:35 整理：http://www.55dianzi.com 义隆单片机

}
LCD_DB=tmp1;

tmp1=set_tmp&0x0f;
LCD_ADDR=8;
tmp1=lcd_ram[tmp1];
LCD_DB=tmp1;
LCD_ADDR=7;
_asm
{
swap %tmp1
}
LCD_DB=tmp1;
}

/*void lcd_on_off(void)
{
uchar i;
for(i=0;i<32;i++)
{
LCD_ADDR=i;
LCD_DB=0xff;
}

for(dly=0x00ff;dly;dly--)
{
WDTC();
}

for(i=32;i;i--)
{
LCD_ADDR=i;
LCD_DB=0;
}

for(dly=0x1fff;dly;dly--)
{
WDTC();
}

}*/

/******************************按键扫描************************/
/*****************************按键处理************************/
void KeyDo(uchar key)
{
    uchar fan_temp;
    if (key == ON_OFF){
      if(mode_on_off==0)
        {
         key_flag=1;
         mode_on_off=1;
        }
      else
        {
         mode_on_off=0;
        }

    }
    else if (key == FAN)
    {
     timer1=0;
      key_flag=1;
        if(mode_on_off==1)
         {
         fan_temp=fan_st&0xe0;
         if(fan_temp==0x80)
          {
           fan_st|=0x40;
           fan_st&=0x7f;
          }
         else if(fan_temp==0x40)
          {
           fan_st|=0x20;
           fan_st&=0xbf;
          }
         else if(fan_temp==0x20)
          {
           fan_st|=0x80;
           fan_st&=0xdf;
          }
         }
    }
   else if (key == MODE)
   {
    timer1=0;
     key_flag=1;
     if(mode_on_off==1)
      {
        fan_temp=fan_st&0x03;
        if(fan_temp==0x01)
           fan_st++;
           else
           {
           fan_st|=0x01;
           fan_st&=0xfd;
           }
      }
    }
    else if (key == DECREASE)
    {
           timer1=0;
           key_flag=1;
            if (set_temper == 10)
            {
                set_temper = 10;
            }
            else
            {
                set_temper--;
            }
    }
    else if (key == INCREASE)
    {       timer1=0;
           key_flag=1;
            set_temper++;
            if (set_temper > 30)
            {
               set_temper = 30;
            }

}

}
uchar KeyScan(void)
{
      uchar temp = 0;
      temp = PORT8;
      temp&=0x1f;
      if(temp!=0x1f)
      return temp;
    return 0x1f;
}

void _intcall counter1_l(void) @ 0x0C:low_int 3
{

}

void _intcall counter1(void) @ int 3
{
//backup R4
_asm
   {
     SWAPA 0x04
     MOV 0x1F,A
   }

   //backup C system
_asm
    {
    BS 0X4,6
    BS 0X4,7
MOV A,0X10 // USE 1 BYTE C TYPE,C SYSTEM BACKUP
MOV 0X3C+1,A
MOV A,0X14
MOV 0X3B+1,A
MOV A,0X18
MOV 0X3A+1,A
MOV A,0X1B
MOV 0X39+1,A
MOV A,0X1C
MOV 0X38+1,A
    }

            ISR=0;
            timer_2ms_ok=1;
            if (key_state == 0)
           {
            new_key = KeyScan();
            if (new_key != 0x1f)
            {
                key_state++;
            }
           }
        else if (key_state < 5)
        {
            if (KeyScan() == new_key)
            {
                key_state++;
            }
            else